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      1 /*
      2  * Copyright (C) 2015 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.messaging.ui;
     18 
     19 import android.app.Fragment;
     20 import android.os.Bundle;
     21 import android.support.v4.app.FragmentActivity;
     22 import android.view.View;
     23 import android.view.WindowManager;
     24 import android.widget.FrameLayout;
     25 
     26 import com.android.messaging.R;
     27 import com.android.messaging.util.LogUtil;
     28 import com.google.common.annotations.VisibleForTesting;
     29 
     30 /**
     31  * An empty activity that can be used to host a fragment or view for unit testing purposes. Lives in
     32  * app code vs test code due to requirement of ActivityInstrumentationTestCase2.
     33  */
     34 public class TestActivity extends FragmentActivity {
     35     private FragmentEventListener mFragmentEventListener;
     36 
     37     public interface FragmentEventListener {
     38         public void onAttachFragment(Fragment fragment);
     39     }
     40 
     41     @Override
     42     protected void onCreate(final Bundle bundle) {
     43         super.onCreate(bundle);
     44 
     45         if (bundle != null) {
     46             // The test case may have configured the fragment, and recreating the activity will
     47             // lose that configuration. The real activity is the only activity that would know
     48             // how to reapply that configuration.
     49             throw new IllegalStateException("TestActivity cannot get recreated");
     50         }
     51 
     52         // There is a race condition, but this often makes it possible for tests to run with the
     53         // key guard up
     54         getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON |
     55                 WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD |
     56                 WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED |
     57                 WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
     58 
     59         setContentView(R.layout.test_activity);
     60     }
     61 
     62     @VisibleForTesting
     63     public void setFragment(final Fragment fragment) {
     64         LogUtil.i(LogUtil.BUGLE_TAG, "TestActivity.setFragment");
     65         getFragmentManager()
     66                 .beginTransaction()
     67                 .replace(R.id.test_content, fragment)
     68                 .commit();
     69         getFragmentManager().executePendingTransactions();
     70     }
     71 
     72     @VisibleForTesting
     73     public void setView(final View view) {
     74         LogUtil.i(LogUtil.BUGLE_TAG, "TestActivity.setView");
     75         ((FrameLayout) findViewById(R.id.test_content)).addView(view);
     76     }
     77 
     78     @Override
     79     public void onAttachFragment(final Fragment fragment) {
     80         if (mFragmentEventListener != null) {
     81             mFragmentEventListener.onAttachFragment(fragment);
     82         }
     83     }
     84 
     85     public void setFragmentEventListener(final FragmentEventListener fragmentEventListener) {
     86         mFragmentEventListener = fragmentEventListener;
     87     }
     88 }
     89