How to use

getLastActivity

method

in

android.app.Instrumentation$ActivityMonitor

/**
 * Waits for an activity to be started if one is not provided
 * by the constructor.
 */
private final void waitForActivityIfNotAvailable(){
  if(activityStack.isEmpty() || activityStack.peek().get() == null){
    if (activityMonitor != null) {
      Activity activity = activityMonitor.getLastActivity();
      while (activity == null){
        sleeper.sleepMini();
        activity = activityMonitor.getLastActivity();
      }
      addActivityToStack(activity);
    }
    else if(config.trackActivities){
      sleeper.sleepMini();
      setupActivityMonitor();
      waitForActivityIfNotAvailable();
    }
  }
}

 public InstrumentationActivityMonitorAssert hasLastActivity(Activity activity) {
  isNotNull();
  Activity actualActivity = actual.getLastActivity();
  assertThat(actualActivity) //
    .overridingErrorMessage("Expected last activity <%s> but was <%s>.", activity,
      actualActivity) //
    .isSameAs(activity);
  return this;
 }
}

if (activityMonitor.getLastActivity() != null)
  activity = activityMonitor.getLastActivity();

/**
 * Waits for an activity to be started if one is not provided
 * by the constructor.
 */
private final void waitForActivityIfNotAvailable(){
  if(activityStack.isEmpty() || activityStack.peek().get() == null){
    if (activityMonitor != null) {
      Activity activity = activityMonitor.getLastActivity();
      while (activity == null){
        sleeper.sleepMini();
        activity = activityMonitor.getLastActivity();
      }
      addActivityToStack(activity);
    }
    else if(config.trackActivities){
      sleeper.sleepMini();
      setupActivityMonitor();
      waitForActivityIfNotAvailable();
    }
  }
}

 public void testKillCreateLifeCycle() throws Throwable {
  Instrumentation.ActivityMonitor mainActivityMonitor = new Instrumentation.ActivityMonitor(MainActivity.class.getName(), null, false);
  getInstrumentation().addMonitor(mainActivityMonitor);

  final Activity activity = getActivity();
  mainActivityMonitor.waitForActivityWithTimeout(5000);

  navigateToFragment(activity);

  runTestOnUiThread(new Runnable() {
    @Override
    public void run() {
      activity.recreate();
    }
  });
  getInstrumentation().waitForIdleSync();

  Activity newActivity = mainActivityMonitor.getLastActivity();
  assertFragmentIsVisible((FragmentActivity) newActivity, getExpectedFragment());
}

  @Override
  public void startsWithIntentAction(String intentAction) {
    ActivityMonitor monitor = instrumentation.addMonitor(intentAction, null, false);

    performPendingAction();

    assertTrue(instrumentation.checkMonitorHit(monitor, 1));

    Activity lastActivity = monitor.getLastActivity();
    getStoryTestCase().setCurrentActivity(lastActivity);

  }
}

@Override
public void starts(Class<? extends Activity> activityClass) {
  ActivityMonitor monitor = instrumentation.addMonitor(activityClass.getCanonicalName(),
      null, false);
  performPendingAction();
  assertTrue(instrumentation.checkMonitorHit(monitor, 1));
  Activity lastActivity = monitor.getLastActivity();
  getStoryTestCase().setCurrentActivity(lastActivity);
}

 public InstrumentationActivityMonitorAssert hasLastActivity(Activity activity) {
  isNotNull();
  Activity actualActivity = actual.getLastActivity();
  assertThat(actualActivity) //
    .overridingErrorMessage("Expected last activity <%s> but was <%s>.", activity,
      actualActivity) //
    .isSameAs(activity);
  return this;
 }
}