| /* |
| * Copyright (C) 2016 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 android.perftests.utils; |
| |
| import android.view.View; |
| import android.view.ViewGroup; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| public class LayoutUtils { |
| |
| private static void recursivelyGather(ViewGroup currentNode, List<View> nodeList) { |
| nodeList.add(currentNode); |
| int count = currentNode.getChildCount(); |
| for (int i = 0; i < count; i++) { |
| View view = currentNode.getChildAt(i); |
| if (view instanceof ViewGroup) { |
| recursivelyGather((ViewGroup) view, nodeList); |
| } else { |
| nodeList.add(view); |
| } |
| } |
| } |
| |
| /** |
| * Flattern the whole view tree into a list of View. |
| */ |
| public static List<View> gatherViewTree(ViewGroup root) { |
| List<View> result = new ArrayList<View>(); |
| recursivelyGather(root, result); |
| return result; |
| } |
| |
| /** |
| * For every node in the list, call requestLayout. |
| */ |
| public static void requestLayoutForAllNodes(List<View> nodeList) { |
| int count = nodeList.size(); |
| for (int i = 0; i < count; i++) { |
| nodeList.get(i).requestLayout(); |
| } |
| } |
| } |