1395 lines
53 KiB
Java
1395 lines
53 KiB
Java
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.widget;
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import static android.view.flags.Flags.enableArrowIconOnHoverWhenClickable;
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import static android.view.flags.Flags.FLAG_ENABLE_ARROW_ICON_ON_HOVER_WHEN_CLICKABLE;
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import android.animation.ObjectAnimator;
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import android.annotation.FlaggedApi;
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import android.annotation.IntDef;
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import android.content.Context;
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import android.content.res.ColorStateList;
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import android.content.res.Resources;
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import android.content.res.TypedArray;
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import android.graphics.Canvas;
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import android.graphics.Color;
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import android.graphics.Paint;
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import android.graphics.Path;
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import android.graphics.Rect;
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import android.graphics.Region;
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import android.graphics.Typeface;
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import android.os.Bundle;
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import android.util.AttributeSet;
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import android.util.FloatProperty;
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import android.util.IntArray;
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import android.util.Log;
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import android.util.MathUtils;
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import android.util.StateSet;
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import android.util.TypedValue;
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import android.view.HapticFeedbackConstants;
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import android.view.InputDevice;
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import android.view.MotionEvent;
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import android.view.PointerIcon;
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import android.view.View;
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import android.view.accessibility.AccessibilityEvent;
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import android.view.accessibility.AccessibilityNodeInfo;
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import android.view.accessibility.AccessibilityNodeInfo.AccessibilityAction;
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import com.android.internal.R;
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import com.android.internal.widget.ExploreByTouchHelper;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.util.Calendar;
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import java.util.Locale;
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/**
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* View to show a clock circle picker (with one or two picking circles)
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*
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* @hide
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*/
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public class RadialTimePickerView extends View {
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private static final String TAG = "RadialTimePickerView";
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public static final int HOURS = 0;
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public static final int MINUTES = 1;
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/** @hide */
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@IntDef({HOURS, MINUTES})
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@Retention(RetentionPolicy.SOURCE)
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@interface PickerType {}
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private static final int HOURS_INNER = 2;
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private static final int SELECTOR_CIRCLE = 0;
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private static final int SELECTOR_DOT = 1;
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private static final int SELECTOR_LINE = 2;
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private static final int AM = 0;
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private static final int PM = 1;
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private static final int HOURS_IN_CIRCLE = 12;
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private static final int MINUTES_IN_CIRCLE = 60;
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private static final int DEGREES_FOR_ONE_HOUR = 360 / HOURS_IN_CIRCLE;
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private static final int DEGREES_FOR_ONE_MINUTE = 360 / MINUTES_IN_CIRCLE;
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private static final int[] HOURS_NUMBERS = {12, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11};
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private static final int[] HOURS_NUMBERS_24 = {0, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23};
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private static final int[] MINUTES_NUMBERS = {0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55};
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private static final int ANIM_DURATION_NORMAL = 500;
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private static final int ANIM_DURATION_TOUCH = 60;
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private static final int[] SNAP_PREFER_30S_MAP = new int[361];
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private static final int NUM_POSITIONS = 12;
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private static final float[] COS_30 = new float[NUM_POSITIONS];
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private static final float[] SIN_30 = new float[NUM_POSITIONS];
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/** "Something is wrong" color used when a color attribute is missing. */
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private static final int MISSING_COLOR = Color.MAGENTA;
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static {
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// Prepare mapping to snap touchable degrees to selectable degrees.
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preparePrefer30sMap();
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final double increment = 2.0 * Math.PI / NUM_POSITIONS;
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double angle = Math.PI / 2.0;
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for (int i = 0; i < NUM_POSITIONS; i++) {
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COS_30[i] = (float) Math.cos(angle);
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SIN_30[i] = (float) Math.sin(angle);
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angle += increment;
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}
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}
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private final FloatProperty<RadialTimePickerView> HOURS_TO_MINUTES =
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new FloatProperty<RadialTimePickerView>("hoursToMinutes") {
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@Override
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public Float get(RadialTimePickerView radialTimePickerView) {
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return radialTimePickerView.mHoursToMinutes;
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}
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@Override
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public void setValue(RadialTimePickerView object, float value) {
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object.mHoursToMinutes = value;
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object.invalidate();
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}
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};
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private final String[] mHours12Texts = new String[12];
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private final String[] mOuterHours24Texts = new String[12];
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private final String[] mInnerHours24Texts = new String[12];
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private final String[] mMinutesTexts = new String[12];
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private final Paint[] mPaint = new Paint[2];
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private final Paint mPaintCenter = new Paint();
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private final Paint[] mPaintSelector = new Paint[3];
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private final Paint mPaintBackground = new Paint();
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private final Typeface mTypeface;
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private final ColorStateList[] mTextColor = new ColorStateList[3];
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private final int[] mTextSize = new int[3];
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private final int[] mTextInset = new int[3];
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private final float[][] mOuterTextX = new float[2][12];
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private final float[][] mOuterTextY = new float[2][12];
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private final float[] mInnerTextX = new float[12];
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private final float[] mInnerTextY = new float[12];
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private final int[] mSelectionDegrees = new int[2];
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private final RadialPickerTouchHelper mTouchHelper;
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private final Path mSelectorPath = new Path();
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private boolean mIs24HourMode;
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private boolean mShowHours;
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private ObjectAnimator mHoursToMinutesAnimator;
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private float mHoursToMinutes;
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/**
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* When in 24-hour mode, indicates that the current hour is between
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* 1 and 12 (inclusive).
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*/
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private boolean mIsOnInnerCircle;
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private int mSelectorRadius;
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private int mSelectorStroke;
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private int mSelectorDotRadius;
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private int mCenterDotRadius;
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private int mSelectorColor;
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private int mSelectorDotColor;
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private int mXCenter;
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private int mYCenter;
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private int mCircleRadius;
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private int mMinDistForInnerNumber;
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private int mMaxDistForOuterNumber;
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private int mHalfwayDist;
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private String[] mOuterTextHours;
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private String[] mInnerTextHours;
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private String[] mMinutesText;
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private int mAmOrPm;
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private float mDisabledAlpha;
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private OnValueSelectedListener mListener;
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private boolean mInputEnabled = true;
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interface OnValueSelectedListener {
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/**
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* Called when the selected value at a given picker index has changed.
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*
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* @param pickerType the type of value that has changed, one of:
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* <ul>
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* <li>{@link #MINUTES}
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* <li>{@link #HOURS}
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* </ul>
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* @param newValue the new value as minute in hour (0-59) or hour in
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* day (0-23)
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* @param autoAdvance when the picker type is {@link #HOURS},
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* {@code true} to switch to the {@link #MINUTES}
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* picker or {@code false} to stay on the current
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* picker. No effect when picker type is
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* {@link #MINUTES}.
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*/
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void onValueSelected(@PickerType int pickerType, int newValue, boolean autoAdvance);
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}
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/**
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* Split up the 360 degrees of the circle among the 60 selectable values. Assigns a larger
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* selectable area to each of the 12 visible values, such that the ratio of space apportioned
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* to a visible value : space apportioned to a non-visible value will be 14 : 4.
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* E.g. the output of 30 degrees should have a higher range of input associated with it than
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* the output of 24 degrees, because 30 degrees corresponds to a visible number on the clock
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* circle (5 on the minutes, 1 or 13 on the hours).
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*/
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private static void preparePrefer30sMap() {
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// We'll split up the visible output and the non-visible output such that each visible
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// output will correspond to a range of 14 associated input degrees, and each non-visible
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// output will correspond to a range of 4 associate input degrees, so visible numbers
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// are more than 3 times easier to get than non-visible numbers:
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// {354-359,0-7}:0, {8-11}:6, {12-15}:12, {16-19}:18, {20-23}:24, {24-37}:30, etc.
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//
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// If an output of 30 degrees should correspond to a range of 14 associated degrees, then
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// we'll need any input between 24 - 37 to snap to 30. Working out from there, 20-23 should
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// snap to 24, while 38-41 should snap to 36. This is somewhat counter-intuitive, that you
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// can be touching 36 degrees but have the selection snapped to 30 degrees; however, this
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// inconsistency isn't noticeable at such fine-grained degrees, and it affords us the
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// ability to aggressively prefer the visible values by a factor of more than 3:1, which
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// greatly contributes to the selectability of these values.
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// The first output is 0, and each following output will increment by 6 {0, 6, 12, ...}.
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int snappedOutputDegrees = 0;
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// Count of how many inputs we've designated to the specified output.
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int count = 1;
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// How many input we expect for a specified output. This will be 14 for output divisible
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// by 30, and 4 for the remaining output. We'll special case the outputs of 0 and 360, so
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// the caller can decide which they need.
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int expectedCount = 8;
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// Iterate through the input.
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for (int degrees = 0; degrees < 361; degrees++) {
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// Save the input-output mapping.
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SNAP_PREFER_30S_MAP[degrees] = snappedOutputDegrees;
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// If this is the last input for the specified output, calculate the next output and
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// the next expected count.
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if (count == expectedCount) {
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snappedOutputDegrees += 6;
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if (snappedOutputDegrees == 360) {
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expectedCount = 7;
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} else if (snappedOutputDegrees % 30 == 0) {
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expectedCount = 14;
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} else {
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expectedCount = 4;
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}
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count = 1;
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} else {
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count++;
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}
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}
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}
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/**
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* Returns mapping of any input degrees (0 to 360) to one of 60 selectable output degrees,
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* where the degrees corresponding to visible numbers (i.e. those divisible by 30) will be
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* weighted heavier than the degrees corresponding to non-visible numbers.
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* See {@link #preparePrefer30sMap()} documentation for the rationale and generation of the
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* mapping.
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*/
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private static int snapPrefer30s(int degrees) {
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if (SNAP_PREFER_30S_MAP == null) {
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return -1;
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}
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return SNAP_PREFER_30S_MAP[degrees];
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}
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/**
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* Returns mapping of any input degrees (0 to 360) to one of 12 visible output degrees (all
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* multiples of 30), where the input will be "snapped" to the closest visible degrees.
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* @param degrees The input degrees
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* @param forceHigherOrLower The output may be forced to either the higher or lower step, or may
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* be allowed to snap to whichever is closer. Use 1 to force strictly higher, -1 to force
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* strictly lower, and 0 to snap to the closer one.
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* @return output degrees, will be a multiple of 30
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*/
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private static int snapOnly30s(int degrees, int forceHigherOrLower) {
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final int stepSize = DEGREES_FOR_ONE_HOUR;
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int floor = (degrees / stepSize) * stepSize;
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final int ceiling = floor + stepSize;
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if (forceHigherOrLower == 1) {
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degrees = ceiling;
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} else if (forceHigherOrLower == -1) {
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if (degrees == floor) {
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floor -= stepSize;
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}
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degrees = floor;
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} else {
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if ((degrees - floor) < (ceiling - degrees)) {
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degrees = floor;
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} else {
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degrees = ceiling;
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}
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}
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return degrees;
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}
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@SuppressWarnings("unused")
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public RadialTimePickerView(Context context) {
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this(context, null);
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}
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public RadialTimePickerView(Context context, AttributeSet attrs) {
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this(context, attrs, R.attr.timePickerStyle);
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}
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public RadialTimePickerView(Context context, AttributeSet attrs, int defStyleAttr) {
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this(context, attrs, defStyleAttr, 0);
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}
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public RadialTimePickerView(
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Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
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super(context, attrs);
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applyAttributes(attrs, defStyleAttr, defStyleRes);
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// Pull disabled alpha from theme.
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final TypedValue outValue = new TypedValue();
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context.getTheme().resolveAttribute(android.R.attr.disabledAlpha, outValue, true);
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mDisabledAlpha = outValue.getFloat();
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mTypeface = Typeface.create("sans-serif", Typeface.NORMAL);
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mPaint[HOURS] = new Paint();
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mPaint[HOURS].setAntiAlias(true);
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mPaint[HOURS].setTextAlign(Paint.Align.CENTER);
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mPaint[MINUTES] = new Paint();
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mPaint[MINUTES].setAntiAlias(true);
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mPaint[MINUTES].setTextAlign(Paint.Align.CENTER);
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mPaintCenter.setAntiAlias(true);
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mPaintSelector[SELECTOR_CIRCLE] = new Paint();
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mPaintSelector[SELECTOR_CIRCLE].setAntiAlias(true);
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mPaintSelector[SELECTOR_DOT] = new Paint();
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mPaintSelector[SELECTOR_DOT].setAntiAlias(true);
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mPaintSelector[SELECTOR_LINE] = new Paint();
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mPaintSelector[SELECTOR_LINE].setAntiAlias(true);
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mPaintSelector[SELECTOR_LINE].setStrokeWidth(2);
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mPaintBackground.setAntiAlias(true);
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final Resources res = getResources();
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mSelectorRadius = res.getDimensionPixelSize(R.dimen.timepicker_selector_radius);
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mSelectorStroke = res.getDimensionPixelSize(R.dimen.timepicker_selector_stroke);
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mSelectorDotRadius = res.getDimensionPixelSize(R.dimen.timepicker_selector_dot_radius);
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mCenterDotRadius = res.getDimensionPixelSize(R.dimen.timepicker_center_dot_radius);
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mTextSize[HOURS] = res.getDimensionPixelSize(R.dimen.timepicker_text_size_normal);
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mTextSize[MINUTES] = res.getDimensionPixelSize(R.dimen.timepicker_text_size_normal);
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mTextSize[HOURS_INNER] = res.getDimensionPixelSize(R.dimen.timepicker_text_size_inner);
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mTextInset[HOURS] = res.getDimensionPixelSize(R.dimen.timepicker_text_inset_normal);
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mTextInset[MINUTES] = res.getDimensionPixelSize(R.dimen.timepicker_text_inset_normal);
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mTextInset[HOURS_INNER] = res.getDimensionPixelSize(R.dimen.timepicker_text_inset_inner);
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mShowHours = true;
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mHoursToMinutes = HOURS;
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mIs24HourMode = false;
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mAmOrPm = AM;
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// Set up accessibility components.
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mTouchHelper = new RadialPickerTouchHelper();
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setAccessibilityDelegate(mTouchHelper);
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if (getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) {
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setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES);
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}
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initHoursAndMinutesText();
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initData();
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// Initial values
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final Calendar calendar = Calendar.getInstance(Locale.getDefault());
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final int currentHour = calendar.get(Calendar.HOUR_OF_DAY);
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final int currentMinute = calendar.get(Calendar.MINUTE);
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setCurrentHourInternal(currentHour, false, false);
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setCurrentMinuteInternal(currentMinute, false);
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setHapticFeedbackEnabled(true);
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}
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void applyAttributes(AttributeSet attrs, int defStyleAttr, int defStyleRes) {
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final Context context = getContext();
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final TypedArray a = getContext().obtainStyledAttributes(attrs,
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R.styleable.TimePicker, defStyleAttr, defStyleRes);
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saveAttributeDataForStyleable(context, R.styleable.TimePicker,
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attrs, a, defStyleAttr, defStyleRes);
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final ColorStateList numbersTextColor = a.getColorStateList(
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R.styleable.TimePicker_numbersTextColor);
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final ColorStateList numbersInnerTextColor = a.getColorStateList(
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R.styleable.TimePicker_numbersInnerTextColor);
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mTextColor[HOURS] = numbersTextColor == null ?
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ColorStateList.valueOf(MISSING_COLOR) : numbersTextColor;
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mTextColor[HOURS_INNER] = numbersInnerTextColor == null ?
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ColorStateList.valueOf(MISSING_COLOR) : numbersInnerTextColor;
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mTextColor[MINUTES] = mTextColor[HOURS];
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// Set up various colors derived from the selector "activated" state.
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final ColorStateList selectorColors = a.getColorStateList(
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R.styleable.TimePicker_numbersSelectorColor);
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final int selectorActivatedColor;
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if (selectorColors != null) {
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final int[] stateSetEnabledActivated = StateSet.get(
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StateSet.VIEW_STATE_ENABLED | StateSet.VIEW_STATE_ACTIVATED);
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selectorActivatedColor = selectorColors.getColorForState(
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stateSetEnabledActivated, 0);
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} else {
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selectorActivatedColor = MISSING_COLOR;
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}
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mPaintCenter.setColor(selectorActivatedColor);
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final int[] stateSetActivated = StateSet.get(
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StateSet.VIEW_STATE_ENABLED | StateSet.VIEW_STATE_ACTIVATED);
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mSelectorColor = selectorActivatedColor;
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mSelectorDotColor = mTextColor[HOURS].getColorForState(stateSetActivated, 0);
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mPaintBackground.setColor(a.getColor(R.styleable.TimePicker_numbersBackgroundColor,
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context.getColor(R.color.timepicker_default_numbers_background_color_material)));
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a.recycle();
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}
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public void initialize(int hour, int minute, boolean is24HourMode) {
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if (mIs24HourMode != is24HourMode) {
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mIs24HourMode = is24HourMode;
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initData();
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}
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setCurrentHourInternal(hour, false, false);
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setCurrentMinuteInternal(minute, false);
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}
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public void setCurrentItemShowing(int item, boolean animate) {
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switch (item){
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case HOURS:
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showHours(animate);
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break;
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case MINUTES:
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showMinutes(animate);
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break;
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default:
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Log.e(TAG, "ClockView does not support showing item " + item);
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}
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}
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public int getCurrentItemShowing() {
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return mShowHours ? HOURS : MINUTES;
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}
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public void setOnValueSelectedListener(OnValueSelectedListener listener) {
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mListener = listener;
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}
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|
|
/**
|
|
* Sets the current hour in 24-hour time.
|
|
*
|
|
* @param hour the current hour between 0 and 23 (inclusive)
|
|
*/
|
|
public void setCurrentHour(int hour) {
|
|
setCurrentHourInternal(hour, true, false);
|
|
}
|
|
|
|
/**
|
|
* Sets the current hour.
|
|
*
|
|
* @param hour The current hour
|
|
* @param callback Whether the value listener should be invoked
|
|
* @param autoAdvance Whether the listener should auto-advance to the next
|
|
* selection mode, e.g. hour to minutes
|
|
*/
|
|
private void setCurrentHourInternal(int hour, boolean callback, boolean autoAdvance) {
|
|
final int degrees = (hour % 12) * DEGREES_FOR_ONE_HOUR;
|
|
mSelectionDegrees[HOURS] = degrees;
|
|
|
|
// 0 is 12 AM (midnight) and 12 is 12 PM (noon).
|
|
final int amOrPm = (hour == 0 || (hour % 24) < 12) ? AM : PM;
|
|
final boolean isOnInnerCircle = getInnerCircleForHour(hour);
|
|
if (mAmOrPm != amOrPm || mIsOnInnerCircle != isOnInnerCircle) {
|
|
mAmOrPm = amOrPm;
|
|
mIsOnInnerCircle = isOnInnerCircle;
|
|
|
|
initData();
|
|
mTouchHelper.invalidateRoot();
|
|
}
|
|
|
|
invalidate();
|
|
|
|
if (callback && mListener != null) {
|
|
mListener.onValueSelected(HOURS, hour, autoAdvance);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns the current hour in 24-hour time.
|
|
*
|
|
* @return the current hour between 0 and 23 (inclusive)
|
|
*/
|
|
public int getCurrentHour() {
|
|
return getHourForDegrees(mSelectionDegrees[HOURS], mIsOnInnerCircle);
|
|
}
|
|
|
|
private int getHourForDegrees(int degrees, boolean innerCircle) {
|
|
int hour = (degrees / DEGREES_FOR_ONE_HOUR) % 12;
|
|
if (mIs24HourMode) {
|
|
// Convert the 12-hour value into 24-hour time based on where the
|
|
// selector is positioned.
|
|
if (!innerCircle && hour == 0) {
|
|
// Outer circle is 1 through 12.
|
|
hour = 12;
|
|
} else if (innerCircle && hour != 0) {
|
|
// Inner circle is 13 through 23 and 0.
|
|
hour += 12;
|
|
}
|
|
} else if (mAmOrPm == PM) {
|
|
hour += 12;
|
|
}
|
|
return hour;
|
|
}
|
|
|
|
/**
|
|
* @param hour the hour in 24-hour time or 12-hour time
|
|
*/
|
|
private int getDegreesForHour(int hour) {
|
|
// Convert to be 0-11.
|
|
if (mIs24HourMode) {
|
|
if (hour >= 12) {
|
|
hour -= 12;
|
|
}
|
|
} else if (hour == 12) {
|
|
hour = 0;
|
|
}
|
|
return hour * DEGREES_FOR_ONE_HOUR;
|
|
}
|
|
|
|
/**
|
|
* @param hour the hour in 24-hour time or 12-hour time
|
|
*/
|
|
private boolean getInnerCircleForHour(int hour) {
|
|
return mIs24HourMode && (hour == 0 || hour > 12);
|
|
}
|
|
|
|
public void setCurrentMinute(int minute) {
|
|
setCurrentMinuteInternal(minute, true);
|
|
}
|
|
|
|
private void setCurrentMinuteInternal(int minute, boolean callback) {
|
|
mSelectionDegrees[MINUTES] = (minute % MINUTES_IN_CIRCLE) * DEGREES_FOR_ONE_MINUTE;
|
|
|
|
invalidate();
|
|
|
|
if (callback && mListener != null) {
|
|
mListener.onValueSelected(MINUTES, minute, false);
|
|
}
|
|
}
|
|
|
|
// Returns minutes in 0-59 range
|
|
public int getCurrentMinute() {
|
|
return getMinuteForDegrees(mSelectionDegrees[MINUTES]);
|
|
}
|
|
|
|
private int getMinuteForDegrees(int degrees) {
|
|
return degrees / DEGREES_FOR_ONE_MINUTE;
|
|
}
|
|
|
|
private int getDegreesForMinute(int minute) {
|
|
return minute * DEGREES_FOR_ONE_MINUTE;
|
|
}
|
|
|
|
/**
|
|
* Sets whether the picker is showing AM or PM hours. Has no effect when
|
|
* in 24-hour mode.
|
|
*
|
|
* @param amOrPm {@link #AM} or {@link #PM}
|
|
* @return {@code true} if the value changed from what was previously set,
|
|
* or {@code false} otherwise
|
|
*/
|
|
public boolean setAmOrPm(int amOrPm) {
|
|
if (mAmOrPm == amOrPm || mIs24HourMode) {
|
|
return false;
|
|
}
|
|
|
|
mAmOrPm = amOrPm;
|
|
invalidate();
|
|
mTouchHelper.invalidateRoot();
|
|
return true;
|
|
}
|
|
|
|
public int getAmOrPm() {
|
|
return mAmOrPm;
|
|
}
|
|
|
|
public void showHours(boolean animate) {
|
|
showPicker(true, animate);
|
|
}
|
|
|
|
public void showMinutes(boolean animate) {
|
|
showPicker(false, animate);
|
|
}
|
|
|
|
private void initHoursAndMinutesText() {
|
|
// Initialize the hours and minutes numbers.
|
|
for (int i = 0; i < 12; i++) {
|
|
mHours12Texts[i] = String.format("%d", HOURS_NUMBERS[i]);
|
|
mInnerHours24Texts[i] = String.format("%02d", HOURS_NUMBERS_24[i]);
|
|
mOuterHours24Texts[i] = String.format("%d", HOURS_NUMBERS[i]);
|
|
mMinutesTexts[i] = String.format("%02d", MINUTES_NUMBERS[i]);
|
|
}
|
|
}
|
|
|
|
private void initData() {
|
|
if (mIs24HourMode) {
|
|
mOuterTextHours = mOuterHours24Texts;
|
|
mInnerTextHours = mInnerHours24Texts;
|
|
} else {
|
|
mOuterTextHours = mHours12Texts;
|
|
mInnerTextHours = mHours12Texts;
|
|
}
|
|
|
|
mMinutesText = mMinutesTexts;
|
|
}
|
|
|
|
@Override
|
|
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
|
|
if (!changed) {
|
|
return;
|
|
}
|
|
|
|
mXCenter = getWidth() / 2;
|
|
mYCenter = getHeight() / 2;
|
|
mCircleRadius = Math.min(mXCenter, mYCenter);
|
|
|
|
mMinDistForInnerNumber = mCircleRadius - mTextInset[HOURS_INNER] - mSelectorRadius;
|
|
mMaxDistForOuterNumber = mCircleRadius - mTextInset[HOURS] + mSelectorRadius;
|
|
mHalfwayDist = mCircleRadius - (mTextInset[HOURS] + mTextInset[HOURS_INNER]) / 2;
|
|
|
|
calculatePositionsHours();
|
|
calculatePositionsMinutes();
|
|
|
|
mTouchHelper.invalidateRoot();
|
|
}
|
|
|
|
@Override
|
|
public void onDraw(Canvas canvas) {
|
|
final float alphaMod = mInputEnabled ? 1 : mDisabledAlpha;
|
|
|
|
drawCircleBackground(canvas);
|
|
|
|
final Path selectorPath = mSelectorPath;
|
|
drawSelector(canvas, selectorPath);
|
|
drawHours(canvas, selectorPath, alphaMod);
|
|
drawMinutes(canvas, selectorPath, alphaMod);
|
|
drawCenter(canvas, alphaMod);
|
|
}
|
|
|
|
private void showPicker(boolean hours, boolean animate) {
|
|
if (mShowHours == hours) {
|
|
return;
|
|
}
|
|
|
|
mShowHours = hours;
|
|
|
|
if (animate) {
|
|
animatePicker(hours, ANIM_DURATION_NORMAL);
|
|
} else {
|
|
// If we have a pending or running animator, cancel it.
|
|
if (mHoursToMinutesAnimator != null && mHoursToMinutesAnimator.isStarted()) {
|
|
mHoursToMinutesAnimator.cancel();
|
|
mHoursToMinutesAnimator = null;
|
|
}
|
|
mHoursToMinutes = hours ? 0.0f : 1.0f;
|
|
}
|
|
|
|
initData();
|
|
invalidate();
|
|
mTouchHelper.invalidateRoot();
|
|
}
|
|
|
|
private void animatePicker(boolean hoursToMinutes, long duration) {
|
|
final float target = hoursToMinutes ? HOURS : MINUTES;
|
|
if (mHoursToMinutes == target) {
|
|
// If we have a pending or running animator, cancel it.
|
|
if (mHoursToMinutesAnimator != null && mHoursToMinutesAnimator.isStarted()) {
|
|
mHoursToMinutesAnimator.cancel();
|
|
mHoursToMinutesAnimator = null;
|
|
}
|
|
|
|
// We're already showing the correct picker.
|
|
return;
|
|
}
|
|
|
|
mHoursToMinutesAnimator = ObjectAnimator.ofFloat(this, HOURS_TO_MINUTES, target);
|
|
mHoursToMinutesAnimator.setAutoCancel(true);
|
|
mHoursToMinutesAnimator.setDuration(duration);
|
|
mHoursToMinutesAnimator.start();
|
|
}
|
|
|
|
private void drawCircleBackground(Canvas canvas) {
|
|
canvas.drawCircle(mXCenter, mYCenter, mCircleRadius, mPaintBackground);
|
|
}
|
|
|
|
private void drawHours(Canvas canvas, Path selectorPath, float alphaMod) {
|
|
final int hoursAlpha = (int) (255f * (1f - mHoursToMinutes) * alphaMod + 0.5f);
|
|
if (hoursAlpha > 0) {
|
|
// Exclude the selector region, then draw inner/outer hours with no
|
|
// activated states.
|
|
canvas.save(Canvas.CLIP_SAVE_FLAG);
|
|
canvas.clipPath(selectorPath, Region.Op.DIFFERENCE);
|
|
drawHoursClipped(canvas, hoursAlpha, false);
|
|
canvas.restore();
|
|
|
|
// Intersect the selector region, then draw minutes with only
|
|
// activated states.
|
|
canvas.save(Canvas.CLIP_SAVE_FLAG);
|
|
canvas.clipPath(selectorPath, Region.Op.INTERSECT);
|
|
drawHoursClipped(canvas, hoursAlpha, true);
|
|
canvas.restore();
|
|
}
|
|
}
|
|
|
|
private void drawHoursClipped(Canvas canvas, int hoursAlpha, boolean showActivated) {
|
|
// Draw outer hours.
|
|
drawTextElements(canvas, mTextSize[HOURS], mTypeface, mTextColor[HOURS], mOuterTextHours,
|
|
mOuterTextX[HOURS], mOuterTextY[HOURS], mPaint[HOURS], hoursAlpha,
|
|
showActivated && !mIsOnInnerCircle, mSelectionDegrees[HOURS], showActivated);
|
|
|
|
// Draw inner hours (13-00) for 24-hour time.
|
|
if (mIs24HourMode && mInnerTextHours != null) {
|
|
drawTextElements(canvas, mTextSize[HOURS_INNER], mTypeface, mTextColor[HOURS_INNER],
|
|
mInnerTextHours, mInnerTextX, mInnerTextY, mPaint[HOURS], hoursAlpha,
|
|
showActivated && mIsOnInnerCircle, mSelectionDegrees[HOURS], showActivated);
|
|
}
|
|
}
|
|
|
|
private void drawMinutes(Canvas canvas, Path selectorPath, float alphaMod) {
|
|
final int minutesAlpha = (int) (255f * mHoursToMinutes * alphaMod + 0.5f);
|
|
if (minutesAlpha > 0) {
|
|
// Exclude the selector region, then draw minutes with no
|
|
// activated states.
|
|
canvas.save(Canvas.CLIP_SAVE_FLAG);
|
|
canvas.clipPath(selectorPath, Region.Op.DIFFERENCE);
|
|
drawMinutesClipped(canvas, minutesAlpha, false);
|
|
canvas.restore();
|
|
|
|
// Intersect the selector region, then draw minutes with only
|
|
// activated states.
|
|
canvas.save(Canvas.CLIP_SAVE_FLAG);
|
|
canvas.clipPath(selectorPath, Region.Op.INTERSECT);
|
|
drawMinutesClipped(canvas, minutesAlpha, true);
|
|
canvas.restore();
|
|
}
|
|
}
|
|
|
|
private void drawMinutesClipped(Canvas canvas, int minutesAlpha, boolean showActivated) {
|
|
drawTextElements(canvas, mTextSize[MINUTES], mTypeface, mTextColor[MINUTES], mMinutesText,
|
|
mOuterTextX[MINUTES], mOuterTextY[MINUTES], mPaint[MINUTES], minutesAlpha,
|
|
showActivated, mSelectionDegrees[MINUTES], showActivated);
|
|
}
|
|
|
|
private void drawCenter(Canvas canvas, float alphaMod) {
|
|
mPaintCenter.setAlpha((int) (255 * alphaMod + 0.5f));
|
|
canvas.drawCircle(mXCenter, mYCenter, mCenterDotRadius, mPaintCenter);
|
|
}
|
|
|
|
private int getMultipliedAlpha(int argb, int alpha) {
|
|
return (int) (Color.alpha(argb) * (alpha / 255.0) + 0.5);
|
|
}
|
|
|
|
private void drawSelector(Canvas canvas, Path selectorPath) {
|
|
// Determine the current length, angle, and dot scaling factor.
|
|
final int hoursIndex = mIsOnInnerCircle ? HOURS_INNER : HOURS;
|
|
final int hoursInset = mTextInset[hoursIndex];
|
|
final int hoursAngleDeg = mSelectionDegrees[hoursIndex % 2];
|
|
final float hoursDotScale = mSelectionDegrees[hoursIndex % 2] % 30 != 0 ? 1 : 0;
|
|
|
|
final int minutesIndex = MINUTES;
|
|
final int minutesInset = mTextInset[minutesIndex];
|
|
final int minutesAngleDeg = mSelectionDegrees[minutesIndex];
|
|
final float minutesDotScale = mSelectionDegrees[minutesIndex] % 30 != 0 ? 1 : 0;
|
|
|
|
// Calculate the current radius at which to place the selection circle.
|
|
final int selRadius = mSelectorRadius;
|
|
final float selLength =
|
|
mCircleRadius - MathUtils.lerp(hoursInset, minutesInset, mHoursToMinutes);
|
|
final double selAngleRad =
|
|
Math.toRadians(MathUtils.lerpDeg(hoursAngleDeg, minutesAngleDeg, mHoursToMinutes));
|
|
final float selCenterX = mXCenter + selLength * (float) Math.sin(selAngleRad);
|
|
final float selCenterY = mYCenter - selLength * (float) Math.cos(selAngleRad);
|
|
|
|
// Draw the selection circle.
|
|
final Paint paint = mPaintSelector[SELECTOR_CIRCLE];
|
|
paint.setColor(mSelectorColor);
|
|
canvas.drawCircle(selCenterX, selCenterY, selRadius, paint);
|
|
|
|
// If needed, set up the clip path for later.
|
|
if (selectorPath != null) {
|
|
selectorPath.reset();
|
|
selectorPath.addCircle(selCenterX, selCenterY, selRadius, Path.Direction.CCW);
|
|
}
|
|
|
|
// Draw the dot if we're between two items.
|
|
final float dotScale = MathUtils.lerp(hoursDotScale, minutesDotScale, mHoursToMinutes);
|
|
if (dotScale > 0) {
|
|
final Paint dotPaint = mPaintSelector[SELECTOR_DOT];
|
|
dotPaint.setColor(mSelectorDotColor);
|
|
canvas.drawCircle(selCenterX, selCenterY, mSelectorDotRadius * dotScale, dotPaint);
|
|
}
|
|
|
|
// Shorten the line to only go from the edge of the center dot to the
|
|
// edge of the selection circle.
|
|
final double sin = Math.sin(selAngleRad);
|
|
final double cos = Math.cos(selAngleRad);
|
|
final float lineLength = selLength - selRadius;
|
|
final int centerX = mXCenter + (int) (mCenterDotRadius * sin);
|
|
final int centerY = mYCenter - (int) (mCenterDotRadius * cos);
|
|
final float linePointX = centerX + (int) (lineLength * sin);
|
|
final float linePointY = centerY - (int) (lineLength * cos);
|
|
|
|
// Draw the line.
|
|
final Paint linePaint = mPaintSelector[SELECTOR_LINE];
|
|
linePaint.setColor(mSelectorColor);
|
|
linePaint.setStrokeWidth(mSelectorStroke);
|
|
canvas.drawLine(mXCenter, mYCenter, linePointX, linePointY, linePaint);
|
|
}
|
|
|
|
private void calculatePositionsHours() {
|
|
// Calculate the text positions
|
|
final float numbersRadius = mCircleRadius - mTextInset[HOURS];
|
|
|
|
// Calculate the positions for the 12 numbers in the main circle.
|
|
calculatePositions(mPaint[HOURS], numbersRadius, mXCenter, mYCenter,
|
|
mTextSize[HOURS], mOuterTextX[HOURS], mOuterTextY[HOURS]);
|
|
|
|
// If we have an inner circle, calculate those positions too.
|
|
if (mIs24HourMode) {
|
|
final int innerNumbersRadius = mCircleRadius - mTextInset[HOURS_INNER];
|
|
calculatePositions(mPaint[HOURS], innerNumbersRadius, mXCenter, mYCenter,
|
|
mTextSize[HOURS_INNER], mInnerTextX, mInnerTextY);
|
|
}
|
|
}
|
|
|
|
private void calculatePositionsMinutes() {
|
|
// Calculate the text positions
|
|
final float numbersRadius = mCircleRadius - mTextInset[MINUTES];
|
|
|
|
// Calculate the positions for the 12 numbers in the main circle.
|
|
calculatePositions(mPaint[MINUTES], numbersRadius, mXCenter, mYCenter,
|
|
mTextSize[MINUTES], mOuterTextX[MINUTES], mOuterTextY[MINUTES]);
|
|
}
|
|
|
|
/**
|
|
* Using the trigonometric Unit Circle, calculate the positions that the text will need to be
|
|
* drawn at based on the specified circle radius. Place the values in the textGridHeights and
|
|
* textGridWidths parameters.
|
|
*/
|
|
private static void calculatePositions(Paint paint, float radius, float xCenter, float yCenter,
|
|
float textSize, float[] x, float[] y) {
|
|
// Adjust yCenter to account for the text's baseline.
|
|
paint.setTextSize(textSize);
|
|
yCenter -= (paint.descent() + paint.ascent()) / 2;
|
|
|
|
for (int i = 0; i < NUM_POSITIONS; i++) {
|
|
x[i] = xCenter - radius * COS_30[i];
|
|
y[i] = yCenter - radius * SIN_30[i];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Draw the 12 text values at the positions specified by the textGrid parameters.
|
|
*/
|
|
private void drawTextElements(Canvas canvas, float textSize, Typeface typeface,
|
|
ColorStateList textColor, String[] texts, float[] textX, float[] textY, Paint paint,
|
|
int alpha, boolean showActivated, int activatedDegrees, boolean activatedOnly) {
|
|
paint.setTextSize(textSize);
|
|
paint.setTypeface(typeface);
|
|
|
|
// The activated index can touch a range of elements.
|
|
final float activatedIndex = activatedDegrees / (360.0f / NUM_POSITIONS);
|
|
final int activatedFloor = (int) activatedIndex;
|
|
final int activatedCeil = ((int) Math.ceil(activatedIndex)) % NUM_POSITIONS;
|
|
|
|
for (int i = 0; i < 12; i++) {
|
|
final boolean activated = (activatedFloor == i || activatedCeil == i);
|
|
if (activatedOnly && !activated) {
|
|
continue;
|
|
}
|
|
|
|
final int stateMask = StateSet.VIEW_STATE_ENABLED
|
|
| (showActivated && activated ? StateSet.VIEW_STATE_ACTIVATED : 0);
|
|
final int color = textColor.getColorForState(StateSet.get(stateMask), 0);
|
|
paint.setColor(color);
|
|
paint.setAlpha(getMultipliedAlpha(color, alpha));
|
|
|
|
canvas.drawText(texts[i], textX[i], textY[i], paint);
|
|
}
|
|
}
|
|
|
|
private int getDegreesFromXY(float x, float y, boolean constrainOutside) {
|
|
// Ensure the point is inside the touchable area.
|
|
final int innerBound;
|
|
final int outerBound;
|
|
if (mIs24HourMode && mShowHours) {
|
|
innerBound = mMinDistForInnerNumber;
|
|
outerBound = mMaxDistForOuterNumber;
|
|
} else {
|
|
final int index = mShowHours ? HOURS : MINUTES;
|
|
final int center = mCircleRadius - mTextInset[index];
|
|
innerBound = center - mSelectorRadius;
|
|
outerBound = center + mSelectorRadius;
|
|
}
|
|
|
|
final double dX = x - mXCenter;
|
|
final double dY = y - mYCenter;
|
|
final double distFromCenter = Math.sqrt(dX * dX + dY * dY);
|
|
if (distFromCenter < innerBound || constrainOutside && distFromCenter > outerBound) {
|
|
return -1;
|
|
}
|
|
|
|
// Convert to degrees.
|
|
final int degrees = (int) (Math.toDegrees(Math.atan2(dY, dX) + Math.PI / 2) + 0.5);
|
|
if (degrees < 0) {
|
|
return degrees + 360;
|
|
} else {
|
|
return degrees;
|
|
}
|
|
}
|
|
|
|
private boolean getInnerCircleFromXY(float x, float y) {
|
|
if (mIs24HourMode && mShowHours) {
|
|
final double dX = x - mXCenter;
|
|
final double dY = y - mYCenter;
|
|
final double distFromCenter = Math.sqrt(dX * dX + dY * dY);
|
|
return distFromCenter <= mHalfwayDist;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
boolean mChangedDuringTouch = false;
|
|
|
|
@Override
|
|
public boolean onTouchEvent(MotionEvent event) {
|
|
if (!mInputEnabled) {
|
|
return true;
|
|
}
|
|
|
|
final int action = event.getActionMasked();
|
|
if (action == MotionEvent.ACTION_MOVE
|
|
|| action == MotionEvent.ACTION_UP
|
|
|| action == MotionEvent.ACTION_DOWN) {
|
|
boolean forceSelection = false;
|
|
boolean autoAdvance = false;
|
|
|
|
if (action == MotionEvent.ACTION_DOWN) {
|
|
// This is a new event stream, reset whether the value changed.
|
|
mChangedDuringTouch = false;
|
|
} else if (action == MotionEvent.ACTION_UP) {
|
|
autoAdvance = true;
|
|
|
|
// If we saw a down/up pair without the value changing, assume
|
|
// this is a single-tap selection and force a change.
|
|
if (!mChangedDuringTouch) {
|
|
forceSelection = true;
|
|
}
|
|
}
|
|
|
|
mChangedDuringTouch |= handleTouchInput(
|
|
event.getX(), event.getY(), forceSelection, autoAdvance);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
private boolean handleTouchInput(
|
|
float x, float y, boolean forceSelection, boolean autoAdvance) {
|
|
final boolean isOnInnerCircle = getInnerCircleFromXY(x, y);
|
|
final int degrees = getDegreesFromXY(x, y, false);
|
|
if (degrees == -1) {
|
|
return false;
|
|
}
|
|
|
|
// Ensure we're showing the correct picker.
|
|
animatePicker(mShowHours, ANIM_DURATION_TOUCH);
|
|
|
|
final @PickerType int type;
|
|
final int newValue;
|
|
final boolean valueChanged;
|
|
|
|
if (mShowHours) {
|
|
final int snapDegrees = snapOnly30s(degrees, 0) % 360;
|
|
valueChanged = mIsOnInnerCircle != isOnInnerCircle
|
|
|| mSelectionDegrees[HOURS] != snapDegrees;
|
|
mIsOnInnerCircle = isOnInnerCircle;
|
|
mSelectionDegrees[HOURS] = snapDegrees;
|
|
type = HOURS;
|
|
newValue = getCurrentHour();
|
|
} else {
|
|
final int snapDegrees = snapPrefer30s(degrees) % 360;
|
|
valueChanged = mSelectionDegrees[MINUTES] != snapDegrees;
|
|
mSelectionDegrees[MINUTES] = snapDegrees;
|
|
type = MINUTES;
|
|
newValue = getCurrentMinute();
|
|
}
|
|
|
|
if (valueChanged || forceSelection || autoAdvance) {
|
|
// Fire the listener even if we just need to auto-advance.
|
|
if (mListener != null) {
|
|
mListener.onValueSelected(type, newValue, autoAdvance);
|
|
}
|
|
|
|
// Only provide feedback if the value actually changed.
|
|
if (valueChanged || forceSelection) {
|
|
performHapticFeedback(HapticFeedbackConstants.CLOCK_TICK);
|
|
invalidate();
|
|
}
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
@Override
|
|
public boolean dispatchHoverEvent(MotionEvent event) {
|
|
// First right-of-refusal goes the touch exploration helper.
|
|
if (mTouchHelper.dispatchHoverEvent(event)) {
|
|
return true;
|
|
}
|
|
return super.dispatchHoverEvent(event);
|
|
}
|
|
|
|
public void setInputEnabled(boolean inputEnabled) {
|
|
mInputEnabled = inputEnabled;
|
|
invalidate();
|
|
}
|
|
|
|
@FlaggedApi(FLAG_ENABLE_ARROW_ICON_ON_HOVER_WHEN_CLICKABLE)
|
|
@Override
|
|
public PointerIcon onResolvePointerIcon(MotionEvent event, int pointerIndex) {
|
|
if (!isEnabled()) {
|
|
return null;
|
|
}
|
|
if (event.isFromSource(InputDevice.SOURCE_MOUSE)) {
|
|
final int degrees = getDegreesFromXY(event.getX(), event.getY(), false);
|
|
if (degrees != -1) {
|
|
int pointerIcon = enableArrowIconOnHoverWhenClickable()
|
|
? PointerIcon.TYPE_ARROW
|
|
: PointerIcon.TYPE_HAND;
|
|
return PointerIcon.getSystemIcon(getContext(), pointerIcon);
|
|
}
|
|
}
|
|
return super.onResolvePointerIcon(event, pointerIndex);
|
|
}
|
|
|
|
private class RadialPickerTouchHelper extends ExploreByTouchHelper {
|
|
private final Rect mTempRect = new Rect();
|
|
|
|
private final int TYPE_HOUR = 1;
|
|
private final int TYPE_MINUTE = 2;
|
|
|
|
private final int SHIFT_TYPE = 0;
|
|
private final int MASK_TYPE = 0xF;
|
|
|
|
private final int SHIFT_VALUE = 8;
|
|
private final int MASK_VALUE = 0xFF;
|
|
|
|
/** Increment in which virtual views are exposed for minutes. */
|
|
private final int MINUTE_INCREMENT = 5;
|
|
|
|
public RadialPickerTouchHelper() {
|
|
super(RadialTimePickerView.this);
|
|
}
|
|
|
|
@Override
|
|
public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) {
|
|
super.onInitializeAccessibilityNodeInfo(host, info);
|
|
|
|
info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_FORWARD);
|
|
info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_SCROLL_BACKWARD);
|
|
}
|
|
|
|
@Override
|
|
public boolean performAccessibilityAction(View host, int action, Bundle arguments) {
|
|
if (super.performAccessibilityAction(host, action, arguments)) {
|
|
return true;
|
|
}
|
|
|
|
switch (action) {
|
|
case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD:
|
|
adjustPicker(1);
|
|
return true;
|
|
case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD:
|
|
adjustPicker(-1);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
private void adjustPicker(int step) {
|
|
final int stepSize;
|
|
final int initialStep;
|
|
final int maxValue;
|
|
final int minValue;
|
|
if (mShowHours) {
|
|
stepSize = 1;
|
|
|
|
final int currentHour24 = getCurrentHour();
|
|
if (mIs24HourMode) {
|
|
initialStep = currentHour24;
|
|
minValue = 0;
|
|
maxValue = 23;
|
|
} else {
|
|
initialStep = hour24To12(currentHour24);
|
|
minValue = 1;
|
|
maxValue = 12;
|
|
}
|
|
} else {
|
|
stepSize = 5;
|
|
initialStep = getCurrentMinute() / stepSize;
|
|
minValue = 0;
|
|
maxValue = 55;
|
|
}
|
|
|
|
final int nextValue = (initialStep + step) * stepSize;
|
|
final int clampedValue = MathUtils.constrain(nextValue, minValue, maxValue);
|
|
if (mShowHours) {
|
|
setCurrentHour(clampedValue);
|
|
} else {
|
|
setCurrentMinute(clampedValue);
|
|
}
|
|
}
|
|
|
|
@Override
|
|
protected int getVirtualViewAt(float x, float y) {
|
|
final int id;
|
|
final int degrees = getDegreesFromXY(x, y, true);
|
|
if (degrees != -1) {
|
|
final int snapDegrees = snapOnly30s(degrees, 0) % 360;
|
|
if (mShowHours) {
|
|
final boolean isOnInnerCircle = getInnerCircleFromXY(x, y);
|
|
final int hour24 = getHourForDegrees(snapDegrees, isOnInnerCircle);
|
|
final int hour = mIs24HourMode ? hour24 : hour24To12(hour24);
|
|
id = makeId(TYPE_HOUR, hour);
|
|
} else {
|
|
final int current = getCurrentMinute();
|
|
final int touched = getMinuteForDegrees(degrees);
|
|
final int snapped = getMinuteForDegrees(snapDegrees);
|
|
|
|
// If the touched minute is closer to the current minute
|
|
// than it is to the snapped minute, return current.
|
|
final int currentOffset = getCircularDiff(current, touched, MINUTES_IN_CIRCLE);
|
|
final int snappedOffset = getCircularDiff(snapped, touched, MINUTES_IN_CIRCLE);
|
|
final int minute;
|
|
if (currentOffset < snappedOffset) {
|
|
minute = current;
|
|
} else {
|
|
minute = snapped;
|
|
}
|
|
id = makeId(TYPE_MINUTE, minute);
|
|
}
|
|
} else {
|
|
id = INVALID_ID;
|
|
}
|
|
|
|
return id;
|
|
}
|
|
|
|
/**
|
|
* Returns the difference in degrees between two values along a circle.
|
|
*
|
|
* @param first value in the range [0,max]
|
|
* @param second value in the range [0,max]
|
|
* @param max the maximum value along the circle
|
|
* @return the difference in between the two values
|
|
*/
|
|
private int getCircularDiff(int first, int second, int max) {
|
|
final int diff = Math.abs(first - second);
|
|
final int midpoint = max / 2;
|
|
return (diff > midpoint) ? (max - diff) : diff;
|
|
}
|
|
|
|
@Override
|
|
protected void getVisibleVirtualViews(IntArray virtualViewIds) {
|
|
if (mShowHours) {
|
|
final int min = mIs24HourMode ? 0 : 1;
|
|
final int max = mIs24HourMode ? 23 : 12;
|
|
for (int i = min; i <= max ; i++) {
|
|
virtualViewIds.add(makeId(TYPE_HOUR, i));
|
|
}
|
|
} else {
|
|
final int current = getCurrentMinute();
|
|
for (int i = 0; i < MINUTES_IN_CIRCLE; i += MINUTE_INCREMENT) {
|
|
virtualViewIds.add(makeId(TYPE_MINUTE, i));
|
|
|
|
// If the current minute falls between two increments,
|
|
// insert an extra node for it.
|
|
if (current > i && current < i + MINUTE_INCREMENT) {
|
|
virtualViewIds.add(makeId(TYPE_MINUTE, current));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
@Override
|
|
protected void onPopulateEventForVirtualView(int virtualViewId, AccessibilityEvent event) {
|
|
event.setClassName(getClass().getName());
|
|
|
|
final int type = getTypeFromId(virtualViewId);
|
|
final int value = getValueFromId(virtualViewId);
|
|
final CharSequence description = getVirtualViewDescription(type, value);
|
|
event.setContentDescription(description);
|
|
}
|
|
|
|
@Override
|
|
protected void onPopulateNodeForVirtualView(int virtualViewId, AccessibilityNodeInfo node) {
|
|
node.setClassName(getClass().getName());
|
|
node.addAction(AccessibilityAction.ACTION_CLICK);
|
|
|
|
final int type = getTypeFromId(virtualViewId);
|
|
final int value = getValueFromId(virtualViewId);
|
|
final CharSequence description = getVirtualViewDescription(type, value);
|
|
node.setContentDescription(description);
|
|
|
|
getBoundsForVirtualView(virtualViewId, mTempRect);
|
|
node.setBoundsInParent(mTempRect);
|
|
|
|
final boolean selected = isVirtualViewSelected(type, value);
|
|
node.setSelected(selected);
|
|
|
|
final int nextId = getVirtualViewIdAfter(type, value);
|
|
if (nextId != INVALID_ID) {
|
|
node.setTraversalBefore(RadialTimePickerView.this, nextId);
|
|
}
|
|
}
|
|
|
|
private int getVirtualViewIdAfter(int type, int value) {
|
|
if (type == TYPE_HOUR) {
|
|
final int nextValue = value + 1;
|
|
final int max = mIs24HourMode ? 23 : 12;
|
|
if (nextValue <= max) {
|
|
return makeId(type, nextValue);
|
|
}
|
|
} else if (type == TYPE_MINUTE) {
|
|
final int current = getCurrentMinute();
|
|
final int snapValue = value - (value % MINUTE_INCREMENT);
|
|
final int nextValue = snapValue + MINUTE_INCREMENT;
|
|
if (value < current && nextValue > current) {
|
|
// The current value is between two snap values.
|
|
return makeId(type, current);
|
|
} else if (nextValue < MINUTES_IN_CIRCLE) {
|
|
return makeId(type, nextValue);
|
|
}
|
|
}
|
|
return INVALID_ID;
|
|
}
|
|
|
|
@Override
|
|
protected boolean onPerformActionForVirtualView(int virtualViewId, int action,
|
|
Bundle arguments) {
|
|
if (action == AccessibilityNodeInfo.ACTION_CLICK) {
|
|
final int type = getTypeFromId(virtualViewId);
|
|
final int value = getValueFromId(virtualViewId);
|
|
if (type == TYPE_HOUR) {
|
|
final int hour = mIs24HourMode ? value : hour12To24(value, mAmOrPm);
|
|
setCurrentHour(hour);
|
|
return true;
|
|
} else if (type == TYPE_MINUTE) {
|
|
setCurrentMinute(value);
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
private int hour12To24(int hour12, int amOrPm) {
|
|
int hour24 = hour12;
|
|
if (hour12 == 12) {
|
|
if (amOrPm == AM) {
|
|
hour24 = 0;
|
|
}
|
|
} else if (amOrPm == PM) {
|
|
hour24 += 12;
|
|
}
|
|
return hour24;
|
|
}
|
|
|
|
private int hour24To12(int hour24) {
|
|
if (hour24 == 0) {
|
|
return 12;
|
|
} else if (hour24 > 12) {
|
|
return hour24 - 12;
|
|
} else {
|
|
return hour24;
|
|
}
|
|
}
|
|
|
|
private void getBoundsForVirtualView(int virtualViewId, Rect bounds) {
|
|
final float radius;
|
|
final int type = getTypeFromId(virtualViewId);
|
|
final int value = getValueFromId(virtualViewId);
|
|
final float centerRadius;
|
|
final float degrees;
|
|
if (type == TYPE_HOUR) {
|
|
final boolean innerCircle = getInnerCircleForHour(value);
|
|
if (innerCircle) {
|
|
centerRadius = mCircleRadius - mTextInset[HOURS_INNER];
|
|
radius = mSelectorRadius;
|
|
} else {
|
|
centerRadius = mCircleRadius - mTextInset[HOURS];
|
|
radius = mSelectorRadius;
|
|
}
|
|
|
|
degrees = getDegreesForHour(value);
|
|
} else if (type == TYPE_MINUTE) {
|
|
centerRadius = mCircleRadius - mTextInset[MINUTES];
|
|
degrees = getDegreesForMinute(value);
|
|
radius = mSelectorRadius;
|
|
} else {
|
|
// This should never happen.
|
|
centerRadius = 0;
|
|
degrees = 0;
|
|
radius = 0;
|
|
}
|
|
|
|
final double radians = Math.toRadians(degrees);
|
|
final float xCenter = mXCenter + centerRadius * (float) Math.sin(radians);
|
|
final float yCenter = mYCenter - centerRadius * (float) Math.cos(radians);
|
|
|
|
bounds.set((int) (xCenter - radius), (int) (yCenter - radius),
|
|
(int) (xCenter + radius), (int) (yCenter + radius));
|
|
}
|
|
|
|
private CharSequence getVirtualViewDescription(int type, int value) {
|
|
final CharSequence description;
|
|
if (type == TYPE_HOUR || type == TYPE_MINUTE) {
|
|
description = Integer.toString(value);
|
|
} else {
|
|
description = null;
|
|
}
|
|
return description;
|
|
}
|
|
|
|
private boolean isVirtualViewSelected(int type, int value) {
|
|
final boolean selected;
|
|
if (type == TYPE_HOUR) {
|
|
selected = getCurrentHour() == value;
|
|
} else if (type == TYPE_MINUTE) {
|
|
selected = getCurrentMinute() == value;
|
|
} else {
|
|
selected = false;
|
|
}
|
|
return selected;
|
|
}
|
|
|
|
private int makeId(int type, int value) {
|
|
return type << SHIFT_TYPE | value << SHIFT_VALUE;
|
|
}
|
|
|
|
private int getTypeFromId(int id) {
|
|
return id >>> SHIFT_TYPE & MASK_TYPE;
|
|
}
|
|
|
|
private int getValueFromId(int id) {
|
|
return id >>> SHIFT_VALUE & MASK_VALUE;
|
|
}
|
|
}
|
|
}
|