獲得在Android的

Question

createChooser方法我想用它使用IntentSenderIntent.createChooser法的新版本IntentSender對象。

文檔只是說我可以從PendingIntent例如抓住它。在我看來，PendingIntent似乎沒有任何其他用途。

有另一種方式來獲得IntentSender或是否需要創建PendingIntent？

Answer 1

選配目標的意圖並非PendingIntent。例如，在下面的代碼片段中，我聲明瞭ACTION_SEND的意圖，類型爲text/plain，這是我的Intent.createChooser的目標意圖。然後我創建另一個Intent，接收器和處理器，該PendingIntet，將調用我的東西從選擇器BroadcastTest一個挑後onReceive。

Intent intent = new Intent(Intent.ACTION_SEND); 
intent.putExtra(Intent.EXTRA_TEXT, "This is my text to send."); 
intent.setType("text/plain"); 
Intent receiver = new Intent(this, BroadcastTest.class); 
receiver.putExtra("test", "test"); 
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, receiver, PendingIntent.FLAG_UPDATE_CURRENT); 
Intent chooser = Intent.createChooser(intent, "test", pendingIntent.getIntentSender()); 
startActivity(chooser); 

編輯：

的信息，在BroadcastReceiver的情況下被嵌入在你作爲參數的意圖。選擇其中一個選項後，檢索套件的附加功能並使用密鑰android.intent.extra.CHOSEN_COMPONENT，您應該能夠找到用戶選擇的內容。

嘗試增加簡單Log.d到onReceive

for (String key : intent.getExtras().keySet()) { 
    Log.d(getClass().getSimpleName(), " " + intent.getExtras().get(key)); 
} 

在我的例子我

ComponentInfo{org.telegram.messenger/org.telegram.ui.LaunchActivity}

爲Telegram和

ComponentInfo{com.google.android.apps.inbox/com.google.android.apps.bigtop.activities.ComposeMessageActivity} 

InBox

Answer 2

另一種方式來做到這一點。

/** 
    * Receiver to record the chosen component when sharing an Intent. 
    */ 
    static class TargetChosenReceiver extends BroadcastReceiver { 
     private static final String EXTRA_RECEIVER_TOKEN = "receiver_token"; 
     private static final Object LOCK = new Object(); 

     private static String sTargetChosenReceiveAction; 
     private static TargetChosenReceiver sLastRegisteredReceiver; 

     static boolean isSupported() { 
      return Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP_MR1; 
     } 

     @TargetApi(Build.VERSION_CODES.LOLLIPOP_MR1) 
     static void sendChooserIntent(Activity activity, Intent sharingIntent) { 
      synchronized (LOCK) { 
       if (sTargetChosenReceiveAction == null) { 
        sTargetChosenReceiveAction = activity.getPackageName() + "/" 
          + TargetChosenReceiver.class.getName() + "_ACTION"; 
       } 
       Context context = activity.getApplicationContext(); 
       if (sLastRegisteredReceiver != null) { 
        context.unregisterReceiver(sLastRegisteredReceiver); 
       } 
       sLastRegisteredReceiver = new TargetChosenReceiver(); 
       context.registerReceiver(
         sLastRegisteredReceiver, new IntentFilter(sTargetChosenReceiveAction)); 
      } 

      Intent intent = new Intent(sTargetChosenReceiveAction); 
      intent.setPackage(activity.getPackageName()); 
      intent.putExtra(EXTRA_RECEIVER_TOKEN, sLastRegisteredReceiver.hashCode()); 
      final PendingIntent callback = PendingIntent.getBroadcast(activity, 0, intent, 
        PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_ONE_SHOT); 
      Intent chooserIntent = Intent.createChooser(sharingIntent, 
        activity.getString(R.string.share_link_chooser_title), 
        callback.getIntentSender()); 
      activity.startActivity(chooserIntent); 
     } 

     @Override 
     public void onReceive(Context context, Intent intent) { 
      synchronized (LOCK) { 
       if (sLastRegisteredReceiver != this) return; 
       context.getApplicationContext().unregisterReceiver(sLastRegisteredReceiver); 
       sLastRegisteredReceiver = null; 
      } 
      if (!intent.hasExtra(EXTRA_RECEIVER_TOKEN) 
        || intent.getIntExtra(EXTRA_RECEIVER_TOKEN, 0) != this.hashCode()) { 
       return; 
      } 

      ComponentName target = intent.getParcelableExtra(Intent.EXTRA_CHOSEN_COMPONENT); 
      if (target != null) { 
       setLastShareComponentName(context, target); 
      } 
     } 
    }