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      1 /*
      2  * Copyright (C) 2017 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 androidx.lifecycle.testapp;
     18 
     19 import android.app.Activity;
     20 import android.os.Bundle;
     21 
     22 import androidx.annotation.Nullable;
     23 
     24 import java.util.concurrent.TimeUnit;
     25 import java.util.concurrent.locks.Condition;
     26 import java.util.concurrent.locks.Lock;
     27 import java.util.concurrent.locks.ReentrantLock;
     28 
     29 /**
     30  * Activity which doesn't extend FragmentActivity, to test ProcessLifecycleOwner because it
     31  * should work anyway.
     32  */
     33 public class NonSupportActivity extends Activity {
     34 
     35     private static final int TIMEOUT = 1; //secs
     36     private final Lock mLock = new ReentrantLock();
     37     private Condition mIsResumedCondition = mLock.newCondition();
     38     private boolean mIsResumed = false;
     39 
     40     @Override
     41     protected void onCreate(@Nullable Bundle savedInstanceState) {
     42         super.onCreate(savedInstanceState);
     43     }
     44 
     45     @Override
     46     protected void onResume() {
     47         super.onResume();
     48         mLock.lock();
     49         try {
     50             mIsResumed = true;
     51             mIsResumedCondition.signalAll();
     52         } finally {
     53             mLock.unlock();
     54         }
     55     }
     56 
     57     @Override
     58     protected void onPause() {
     59         super.onPause();
     60         mLock.lock();
     61         try {
     62             mIsResumed = false;
     63         } finally {
     64             mLock.unlock();
     65         }
     66     }
     67 
     68     /**
     69      *  awaits resumed state
     70      * @return
     71      * @throws InterruptedException
     72      */
     73     public boolean awaitResumedState() throws InterruptedException {
     74         mLock.lock();
     75         try {
     76             while (!mIsResumed) {
     77                 if (!mIsResumedCondition.await(TIMEOUT, TimeUnit.SECONDS)) {
     78                     return false;
     79                 }
     80             }
     81             return true;
     82         } finally {
     83             mLock.unlock();
     84         }
     85     }
     86 }
     87