src/com/android/contacts/widget/FullHeightLinearLayout.java

/*
 * Copyright (C) 2010 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.contacts.widget;

import android.content.Context;
import android.util.AttributeSet;
import android.widget.LinearLayout;

/**
 * A custom layout for dialogs that need to be stretched to the full height of the screen.
 * It overrides the height measure specification to ignore "wrap_content" and
 * do "match_parent" instead.  The "wrap_content" part is hard-coded in the framework
 * implementation of the dialog theme.
 */
public final class FullHeightLinearLayout extends LinearLayout {

    public FullHeightLinearLayout(Context context) {
        super(context);
    }

    public FullHeightLinearLayout(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public FullHeightLinearLayout(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        if (MeasureSpec.getMode(heightMeasureSpec) == MeasureSpec.AT_MOST) {
            heightMeasureSpec = MeasureSpec.makeMeasureSpec(
                    MeasureSpec.getSize(heightMeasureSpec), MeasureSpec.EXACTLY);
        }
        super.onMeasure(widthMeasureSpec, heightMeasureSpec);
    }
}