1 /*
2  * Copyright (C) 2012 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package com.android.contacts.common.widget;
18 
19 import android.content.Context;
20 import android.util.AttributeSet;
21 import android.widget.ImageView;
22 
23 /**
24  * Custom {@link ImageView} that improves layouting performance.
25  *
26  * <p>This improves the performance by not passing requestLayout() to its parent, taking advantage
27  * of knowing that image size won't change once set.
28  */
29 public class LayoutSuppressingImageView extends ImageView {
30 
LayoutSuppressingImageView(Context context, AttributeSet attrs)31   public LayoutSuppressingImageView(Context context, AttributeSet attrs) {
32     super(context, attrs);
33   }
34 
35   @Override
requestLayout()36   public void requestLayout() {
37     forceLayout();
38   }
39 }
40