| /* |
| * Copyright (C) 2017 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.systemui.volume; |
| |
| import android.content.Context; |
| import android.util.AttributeSet; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.LinearLayout; |
| |
| /** |
| * Specialized layout for zen mode that allows the radio buttons to reside within |
| * a RadioGroup, but also makes sure that all the heights off the radio buttons align |
| * with the corresponding content in the second child of this view. |
| */ |
| public class ZenRadioLayout extends LinearLayout { |
| |
| public ZenRadioLayout(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| /** |
| * Run 2 measurement passes, 1 that figures out the size of the content, and another |
| * that sets the size of the radio buttons to the heights of the corresponding content. |
| */ |
| @Override |
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| super.onMeasure(widthMeasureSpec, heightMeasureSpec); |
| |
| ViewGroup radioGroup = (ViewGroup) getChildAt(0); |
| ViewGroup radioContent = (ViewGroup) getChildAt(1); |
| int size = radioGroup.getChildCount(); |
| if (size != radioContent.getChildCount()) { |
| throw new IllegalStateException("Expected matching children"); |
| } |
| boolean hasChanges = false; |
| for (int i = 0; i < size; i++) { |
| View radio = radioGroup.getChildAt(i); |
| View content = radioContent.getChildAt(i); |
| if (radio.getLayoutParams().height != content.getMeasuredHeight()) { |
| hasChanges = true; |
| radio.getLayoutParams().height = content.getMeasuredHeight(); |
| } |
| } |
| // Measure again if any heights changed. |
| if (hasChanges) { |
| super.onMeasure(widthMeasureSpec, heightMeasureSpec); |
| } |
| } |
| } |