| /* |
| * 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.internal.widget; |
| |
| import android.annotation.Nullable; |
| import android.content.Context; |
| import android.util.AttributeSet; |
| import android.view.View; |
| import android.widget.LinearLayout; |
| import android.widget.RemoteViews; |
| |
| /** |
| * A LinearLayout that sets it's height again after the last measure pass. This is needed for |
| * MessagingLayouts where groups need to be able to snap it's height to. |
| */ |
| @RemoteViews.RemoteView |
| public class RemeasuringLinearLayout extends LinearLayout { |
| |
| public RemeasuringLinearLayout(Context context) { |
| super(context); |
| } |
| |
| public RemeasuringLinearLayout(Context context, @Nullable AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| public RemeasuringLinearLayout(Context context, @Nullable AttributeSet attrs, |
| int defStyleAttr) { |
| super(context, attrs, defStyleAttr); |
| } |
| |
| public RemeasuringLinearLayout(Context context, AttributeSet attrs, int defStyleAttr, |
| int defStyleRes) { |
| super(context, attrs, defStyleAttr, defStyleRes); |
| } |
| |
| @Override |
| protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { |
| super.onMeasure(widthMeasureSpec, heightMeasureSpec); |
| int count = getChildCount(); |
| int height = 0; |
| for (int i = 0; i < count; ++i) { |
| final View child = getChildAt(i); |
| if (child == null || child.getVisibility() == View.GONE) { |
| continue; |
| } |
| |
| final LayoutParams lp = (LayoutParams) child.getLayoutParams(); |
| height = Math.max(height, height + child.getMeasuredHeight() + lp.topMargin + |
| lp.bottomMargin); |
| } |
| setMeasuredDimension(getMeasuredWidth(), height); |
| } |
| } |