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