80 lines
2.8 KiB
Java
80 lines
2.8 KiB
Java
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/*
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* Copyright (C) 2008 Google Inc.
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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.compat.annotation.UnsupportedAppUsage;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.text.Layout;
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import android.util.AttributeSet;
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import android.util.TypedValue;
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import android.widget.TextView;
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/**
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* Used by dialogs to change the font size and number of lines to try to fit
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* the text to the available space.
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*/
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public class DialogTitle extends TextView {
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public DialogTitle(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
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super(context, attrs, defStyleAttr, defStyleRes);
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}
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public DialogTitle(Context context, AttributeSet attrs, int defStyleAttr) {
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super(context, attrs, defStyleAttr);
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}
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@UnsupportedAppUsage
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public DialogTitle(Context context, AttributeSet attrs) {
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super(context, attrs);
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}
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public DialogTitle(Context context) {
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super(context);
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}
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@Override
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protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
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super.onMeasure(widthMeasureSpec, heightMeasureSpec);
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final Layout layout = getLayout();
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if (layout != null) {
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final int lineCount = layout.getLineCount();
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if (lineCount > 0) {
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final int ellipsisCount = layout.getEllipsisCount(lineCount - 1);
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if (ellipsisCount > 0) {
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setSingleLine(false);
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setMaxLines(2);
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final TypedArray a = mContext.obtainStyledAttributes(null,
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android.R.styleable.TextAppearance, android.R.attr.textAppearanceMedium,
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android.R.style.TextAppearance_Medium);
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final int textSize = a.getDimensionPixelSize(
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android.R.styleable.TextAppearance_textSize, 0);
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if (textSize != 0) {
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// textSize is already expressed in pixels
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setTextSize(TypedValue.COMPLEX_UNIT_PX, textSize);
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}
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a.recycle();
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super.onMeasure(widthMeasureSpec, heightMeasureSpec);
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}
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}
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}
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}
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}
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