am 13527b41: am 14932619: Merge "Correctly apply max width/height to preference icons" into lmp-dev

/*

 * Copyright (C) 2014 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.android.internal.widget;

import android.content.Context;

import android.util.AttributeSet;

import android.widget.ImageView;

/**

 * Extension of ImageView that correctly applies maxWidth and maxHeight.

 */

public class PreferenceImageView extends ImageView {

    public PreferenceImageView(Context context) {

        this(context, null);

    }

    public PreferenceImageView(Context context, AttributeSet attrs) {

        this(context, attrs, 0);

    }

    public PreferenceImageView(Context context, AttributeSet attrs, int defStyleAttr) {

        this(context, attrs, defStyleAttr, 0);

    }

    public PreferenceImageView(Context context, AttributeSet attrs, int defStyleAttr,

            int defStyleRes) {

        super(context, attrs, defStyleAttr, defStyleRes);

    }

    @Override

    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {

        final int widthMode = MeasureSpec.getMode(widthMeasureSpec);

        if (widthMode == MeasureSpec.AT_MOST || widthMode == MeasureSpec.UNSPECIFIED) {

            final int widthSize = MeasureSpec.getSize(widthMeasureSpec);

            final int maxWidth = getMaxWidth();

            if (maxWidth != Integer.MAX_VALUE

                    && (maxWidth < widthSize || widthMode == MeasureSpec.UNSPECIFIED)) {

                widthMeasureSpec = MeasureSpec.makeMeasureSpec(maxWidth, MeasureSpec.AT_MOST);

            }

        }

        final int heightMode = MeasureSpec.getMode(heightMeasureSpec);

        if (heightMode == MeasureSpec.AT_MOST || heightMode == MeasureSpec.UNSPECIFIED) {

            final int heightSize = MeasureSpec.getSize(heightMeasureSpec);

            final int maxHeight = getMaxHeight();

            if (maxHeight != Integer.MAX_VALUE

                    && (maxHeight < heightSize || heightMode == MeasureSpec.UNSPECIFIED)) {

                heightMeasureSpec = MeasureSpec.makeMeasureSpec(maxHeight, MeasureSpec.AT_MOST);

            }

        }

        super.onMeasure(widthMeasureSpec, heightMeasureSpec);

    }

}

    <LinearLayout

        android:id="@+id/icon_frame"

        android:layout_width="wrap_content"

        android:layout_height="match_parent"

        android:layout_height="wrap_content"

        android:layout_marginStart="-4dp"

        android:minWidth="60dp"

        android:gravity="start|center_vertical"

        android:paddingEnd="12dp"

        android:paddingTop="4dp"

        android:paddingBottom="4dp">

        <ImageView

        <com.android.internal.widget.PreferenceImageView

            android:id="@+id/icon"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:adjustViewBounds="true"

            android:maxWidth="48dp"

            android:maxHeight="48dp" />

    </LinearLayout>