ActivityRecognitionResult.hasResult（intent）在向意圖添加附加內容時爲false

我目前正在努力添加Google API活動識別。ActivityRecognitionResult.hasResult（intent）在向意圖添加附加內容時爲false

我成功地讓活動使用掛起的意圖如報道所示，在樣品中：http://developer.android.com/training/location/activity-recognition.html

現在，我想從IntentService回調（由未決的意圖解僱）。要做到這一點我想在找到了解決辦法：Using ResultReceiver in Android

Intent intent = new Intent(ctx, ActivityRecognitionIntentService.class); 
intent.putExtra(ActivityRecognitionIntentService.REQUEST_RECEIVER_EXTRA, new ResultReceiver(null) { 
    @Override 
    protected void onReceiveResult(int resultCode, Bundle resultData) { 
     switch (resultCode) { 
      case ActivityRecognitionIntentService.RESULT_ID_WITH_ACTIVITYRESULT: 

       ActivityRecognitionResult result = resultData.getParcelable(ActivityRecognitionIntentService.RESULT_BUNDLE_ACTIVITYRESULT); 
       DetectedActivity mostProbableActivity = result.getMostProbableActivity(); 

       observer.onNext(mostProbableActivity); 

       // Get the confidence percentage for the most probable activity 
       int confidence = mostProbableActivity.getConfidence(); 

       // Get the type of activity 
       int activityType = mostProbableActivity.getType(); 

       Log.d(TAG, getNameFromType(activityType) + " confidence: " + confidence + " isMoving: " + isMoving(activityType)); 
       break; 
      case ActivityRecognitionIntentService.RESULT_ID_NO_ACTIVITYRESULT: 
       Log.e(TAG, "Nonfatal: no activity result"); 
       break; 
      default: 
       Log.e(TAG, "Unexpected resultCode: " + resultCode); 
     } 
    } 
});

這不幸導致ActivityRecognitionResult.hasResult(intent)總是返回false。

/** 
* Called when a new activity detection update is available. 
*/ 
@Override 
protected void onHandleIntent(Intent intent) { 

    // outputs "onHandleIntent false" 
    Log.d(TAG, "onHandleIntent " + ActivityRecognitionResult.hasResult(intent)); 

}

進一步的測試表明，傳遞給意圖任何額外造成了同樣的問題，因此，例如：

Intent intent = new Intent(ctx, ActivityRecognitionIntentService.class); 
intent.putExtra("TEST", "TESTING"); 
PendingIntent pendingIntent = PendingIntent.getService(ctx, 0, intent, 
     PendingIntent.FLAG_UPDATE_CURRENT); 

ActivityRecognition.ActivityRecognitionApi.requestActivityUpdates(apiClient, 0, pendingIntent);

再次使ActivityRecognitionResult.hasResult(intent)返回false。刪除「測試」額外，給出了預期的活動結果。

所以最後我的問題：