通知不會打開活動

Question

我有一個應用程序，用戶可以通過應用程序向他人發送食譜。 現在，應用程序能夠發送通知，但是，當通知被點擊時，它不會打開預期的活動（SmsViewActivity），它只是關閉抽屜。

下面是SmsViewActivity代碼：

public class SmsViewActivity extends Activity { 
    private static final String TAG = "SmsViewActivity"; 
    private static final String SMS_FOOD = "food_recieved"; 
    private FoodJSONSerializer mSerializer; 
    public Button mSaveButton, mDismissButton; 
    public int mNotificationId; 
    public String message; 
    private EditText mTitleField; 
    private CheckBox mImperialCheckBox; 
    private CheckBox mMetricCheckBox; 
    private EditText mServingsField; 
    private EditText mDirectionsField; 
    private Spinner mMetricSpinner; 
    private Spinner mImperialSpinner; 
    Food mFood; 
    private String msg; 
    private Activity mActivity; 

    public void onCreate(Bundle savedInstanceState){ 

     super.onCreate(savedInstanceState); 
     mActivity = this; 
     setContentView(R.layout.sms_view); 
     mSaveButton = (Button) findViewById(R.id.save_button_sms); 
     mDismissButton = (Button) findViewById(R.id.dismiss_button_sms); 

     this.msg = getIntent().getStringExtra("message"); 
     try { 
      JSONObject jsonRecipe = new JSONObject(this.msg); 
      this.mFood = new Food(jsonRecipe); 

      Log.i(TAG, "Food = " + mFood); 
     } catch (JSONException e) { 
      e.printStackTrace(); 
     } 

     mNotificationId = getIntent().getIntExtra("notificationid", 0); 
     if (mNotificationId == 0) { 
      Log.e(TAG, "Could not retrieve notification ID."); 
      Toast.makeText(this, "A fatal error has occurred in SMS viewer.", 
        Toast.LENGTH_LONG).show(); 
      finish(); 
     } 

     String ns = Context.NOTIFICATION_SERVICE; 
     NotificationManager notificationMgr = (NotificationManager) getSystemService(ns); 
     notificationMgr.cancel(mNotificationId); 

     this.mTitleField = (EditText) findViewById(R.id.food_title_sms); 
     this.mTitleField.setText(mFood.getTitle()); 

     this.mServingsField = (EditText) findViewById(R.id.food_servings_sms); 
     this.mServingsField.setText(Integer.toString(mFood.getServings())); 

     this.mDirectionsField = (EditText) findViewById(R.id.directions_text_sms); 
     this.mDirectionsField.setText(mFood.getDirections()); 

     this.mSaveButton.setOnClickListener(new OnClickListener() { 
      public void onClick(View v) { 
       FoodStorage.get(mActivity).addFood(mFood); 
       finish(); 
      } 
     }); 

     this.mDismissButton.setOnClickListener(new OnClickListener() { 
      public void onClick(View v) { 
       backToList(); 
       finish(); 
      } 
     }); 
    } 

    public void backToList() { 
     Intent i = new Intent(this, FoodListFragment.class); 
     startActivity(i); 
    } 
} 

而且，這裏是接收器的活動：

@Override 
public void onReceive(Context context, Intent intent) { 
    mContext = context; 

    Bundle bundle = intent.getExtras(); 
    Map<String, String> msgTexts = new LinkedHashMap<String, String>(); 

    if (bundle != null){ 
     Object[] pdus = (Object[]) bundle.get("pdus"); 

     for (Object pdu : pdus) { 
      SmsMessage message = SmsMessage.createFromPdu((byte[]) pdu); 
      String incomingMsg = message.getMessageBody(); 
      String originatingNumber = message.getOriginatingAddress(); 
      Log.i(TAG, "Rcvd: from " + originatingNumber + " Msg: " + incomingMsg); 
      msgTexts.put(originatingNumber, incomingMsg); 
      smsMessage = incomingMsg; 
     } 
    } 
    processMessages(msgTexts, mNextNotificationId); 
} 

public void processMessages(Map<String, String> msgTexts, int notificationId){ 
    for (Entry<String, String> entry : msgTexts.entrySet()) { 
     Log.i(TAG, "Processing message: " + entry.getValue()); 

     Intent notificationIntent = new Intent(mContext, SmsViewActivity.class); 
     notificationIntent.putExtra("message", entry.getValue()); 
     notificationIntent.putExtra("sender", entry.getKey()); 
     notificationIntent.putExtra("notificationid", notificationId); 

     PendingIntent resultPendingIntent = PendingIntent.getActivity(mContext, 0, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT); 

     mBuilder = new NotificationCompat.Builder(mContext) 
       .setSmallIcon(R.drawable.ic_launcher) 
       .setTicker("Recipe Received") 
       .setContentTitle("Recipe Received") 
       .setContentIntent(resultPendingIntent) 
       .setContentText("from " + entry.getKey()) 
       .setWhen(System.currentTimeMillis()); 

     NotificationManager notificationMgr = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE); 
     notificationMgr.notify(notificationId++, mBuilder.build()); 
    } 
} 

Answer 1

嘗試改變的意圖標誌： PendingIntent.FLAG_CANCEL_CURRENT

否則只是更新現有的意圖。應該可以在您的活動中使用onNewIntent處理程序，但是我發現它更可靠。