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.example.android.lifecycle.util; 18 19 import android.os.Handler; 20 import android.widget.TextView; 21 22 import java.util.List; 23 24 public class Utils { 25 26 private static StatusTracker mStatusTracker = StatusTracker.getInstance(); 27 28 /** 29 * Helper method to print out the lifecycle state of each Activity. Note this has 30 * been wrapped in a Handler to delay the output due to overlaps in lifecycle state 31 * changes as one Activity launches another. 32 * @link http://developer.android.com/guide/topics/fundamentals/activities.html#CoordinatingActivities 33 * @param viewMethods TextView to list out the lifecycle methods called 34 * @param viewStatus TextView to list out the status of all Activity classes 35 */ 36 public static void printStatus(final TextView viewMethods, final TextView viewStatus) { 37 Handler handler = new Handler(); 38 handler.postDelayed(new Runnable() { 39 public void run() { 40 // Get the stack of Activity lifecycle methods called and print to TextView 41 StringBuilder sbMethods = new StringBuilder(); 42 List<String> listMethods = mStatusTracker.getMethodList(); 43 for (String method : listMethods) { 44 sbMethods.insert(0, method + "\r\n"); 45 } 46 if(viewMethods != null) { 47 viewMethods.setText(sbMethods.toString()); 48 } 49 50 // Get the status of all Activity classes and print to TextView 51 StringBuilder sbStatus = new StringBuilder(); 52 for (String key : mStatusTracker.keySet()) { 53 sbStatus.insert(0,key + ": " + mStatusTracker.getStatus(key) + "\n"); 54 } 55 if(viewStatus != null) { 56 viewStatus.setText(sbStatus.toString()); 57 } 58 } 59 }, 750); 60 } 61 } 62 63 64 65 66
