82 lines
3.5 KiB
Java
82 lines
3.5 KiB
Java
/*
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* Copyright (C) 2020 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 com.android.internal.widget;
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import android.annotation.Nullable;
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import android.content.Context;
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import android.util.AttributeSet;
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import android.widget.FrameLayout;
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import android.widget.RemoteViews;
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/**
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* This custom subclass of FrameLayout enforces that its calculated height be no larger than the
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* standard height of a notification. This is not required in the normal case, as the
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* NotificationContentView gets this same value from the ExpandableNotificationRow, and enforces it
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* as a maximum. It is required in the case of the HUN version of the headerless notification,
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* because that style puts the actions below the headerless portion. If we don't cap this, then in
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* certain situations (larger fonts, decorated custom views) the contents of the headerless
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* notification push on the margins and increase the size of that view, which causes the actions to
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* be cropped on the bottom by the HUN notification max height.
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*/
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@RemoteViews.RemoteView
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public class NotificationMaxHeightFrameLayout extends FrameLayout {
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private final int mNotificationMaxHeight;
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public NotificationMaxHeightFrameLayout(Context context) {
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this(context, null, 0, 0);
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}
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public NotificationMaxHeightFrameLayout(Context context, @Nullable AttributeSet attrs) {
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this(context, attrs, 0, 0);
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}
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public NotificationMaxHeightFrameLayout(Context context, @Nullable AttributeSet attrs,
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int defStyleAttr) {
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this(context, attrs, defStyleAttr, 0);
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}
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public NotificationMaxHeightFrameLayout(Context context, AttributeSet attrs, int defStyleAttr,
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int defStyleRes) {
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super(context, attrs, defStyleAttr, defStyleRes);
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// `notification_min_height` refers to "minimized" not "minimum"; it is a max height
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mNotificationMaxHeight = getFontScaledHeight(mContext,
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com.android.internal.R.dimen.notification_min_height);
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}
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@Override
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protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
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if (MeasureSpec.getSize(heightMeasureSpec) > mNotificationMaxHeight) {
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final int mode = MeasureSpec.getMode(heightMeasureSpec);
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heightMeasureSpec = MeasureSpec.makeMeasureSpec(mNotificationMaxHeight, mode);
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}
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super.onMeasure(widthMeasureSpec, heightMeasureSpec);
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}
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/**
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* NOTE: This is copied from com.android.systemui.statusbar.notification.NotificationUtils
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*
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* @param dimenId the dimen to look up
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* @return the font scaled dimen as if it were in sp but doesn't shrink sizes below dp
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*/
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private static int getFontScaledHeight(Context context, int dimenId) {
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final int dimensionPixelSize = context.getResources().getDimensionPixelSize(dimenId);
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final float factor = Math.max(1.0f, context.getResources().getDisplayMetrics().scaledDensity
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/ context.getResources().getDisplayMetrics().density);
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return (int) (dimensionPixelSize * factor);
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}
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}
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