73 lines
2.8 KiB
Java
73 lines
2.8 KiB
Java
/*
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* Copyright (C) 2014 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.compat.annotation.UnsupportedAppUsage;
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import android.content.Context;
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import android.os.Build;
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import android.util.AttributeSet;
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import android.widget.ImageView;
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/**
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* Extension of ImageView that correctly applies maxWidth and maxHeight.
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*/
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public class PreferenceImageView extends ImageView {
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public PreferenceImageView(Context context) {
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this(context, null);
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}
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@UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
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public PreferenceImageView(Context context, AttributeSet attrs) {
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this(context, attrs, 0);
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}
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public PreferenceImageView(Context context, AttributeSet attrs, int defStyleAttr) {
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this(context, attrs, defStyleAttr, 0);
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}
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public PreferenceImageView(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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}
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@Override
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protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
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final int widthMode = MeasureSpec.getMode(widthMeasureSpec);
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if (widthMode == MeasureSpec.AT_MOST || widthMode == MeasureSpec.UNSPECIFIED) {
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final int widthSize = MeasureSpec.getSize(widthMeasureSpec);
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final int maxWidth = getMaxWidth();
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if (maxWidth != Integer.MAX_VALUE
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&& (maxWidth < widthSize || widthMode == MeasureSpec.UNSPECIFIED)) {
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widthMeasureSpec = MeasureSpec.makeMeasureSpec(maxWidth, MeasureSpec.AT_MOST);
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}
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}
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final int heightMode = MeasureSpec.getMode(heightMeasureSpec);
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if (heightMode == MeasureSpec.AT_MOST || heightMode == MeasureSpec.UNSPECIFIED) {
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final int heightSize = MeasureSpec.getSize(heightMeasureSpec);
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final int maxHeight = getMaxHeight();
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if (maxHeight != Integer.MAX_VALUE
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&& (maxHeight < heightSize || heightMode == MeasureSpec.UNSPECIFIED)) {
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heightMeasureSpec = MeasureSpec.makeMeasureSpec(maxHeight, MeasureSpec.AT_MOST);
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}
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}
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super.onMeasure(widthMeasureSpec, heightMeasureSpec);
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}
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}
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