BrodcastReciever empfängt 1 von 10 Absichten

Question

Auf Knopf klicken ich öffne Tätigkeit (ActionListActivity) und sendende Absicht zu IntentService (später dieser Service sendet broadCast Absicht zu ActionListActivity). Aber ich bekomme normalerweise nur die erste Absicht vor Start. Ist es real, dass die Absicht gesendet wird, bevor der Empfänger registriert wird?

Ich möchte Data Providt durch den IntentService erhalten und meine UI damit aktualisieren.

Schema Aktivitäts-> IntentService-> BroadCastReciver innen ActionListActivity

Aktivität:

private void selectDrawerItem(MenuItem menuItem) 
    { 
     switch (menuItem.getItemId()) { 
      case R.id.actions:{ 
       Intent myIntent = new Intent(this, ActionListActivity.class); 
       this.startActivity(myIntent); 
       ProgressDialog progressDialog = new ProgressDialog(this); 
       progressDialog.show(); 
       Intent dataIntent = new Intent(this, DatabaseWorkIntentService.class); 
       dataIntent.putExtra(Utils.INTENT_SERVICE_INVOKE, Utils.READ_ACTIONS_DATA); 
       startService(dataIntent); 
       progressDialog.dismiss(); 
      } 
     } 
    } 

IntentService:

 private void readActionData(){ 
      Log.e("read actions data","data"); 
      List<Action> actionList; 
      actionList = Action.listAll(Action.class); 

      Intent broadcastIntent = new Intent(); 
      broadcastIntent.setAction(Utils.READ_ACTIONS_DATA); 
      broadcastIntent.putParcelableArrayListExtra(Utils.READ_ACTIONS_DATA, (ArrayList<? extends Parcelable>) actionList); 
      sendBroadcast(broadcastIntent); 
     } 

ActionListActivity:

public class ActionListActivity extends BaseActivity { 

    boolean mIsReceiverRegistered = false; 
    DataBroadcastReceiver receiver; 
    TextView someTv; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.action_list_activity); 
     this.initToolbarAndDrawerWithReadableName(getString(R.string.our_actions)); 

     someTv = (TextView)findViewById(R.id.someTv); 
    } 

    public void someTvTest(Action action){ 
     someTv.append(action.getName()); 
     Log.e("data",action.getName()); 
    } 

    @Override 
    protected void onPause() { 
     super.onPause(); 
     if (mIsReceiverRegistered) { 
      unregisterReceiver(receiver); 
      receiver = null; 
      mIsReceiverRegistered = false; 
     } 
    } 

    @Override 
    protected void onResume() { 
     super.onResume(); 

     if (!mIsReceiverRegistered) { 
      if (receiver == null) 
       receiver = new DataBroadcastReceiver(); 
      IntentFilter filter = new IntentFilter(); 
      filter.addAction(Utils.READ_ACTIONS_DATA); 
      receiver.setMainActivityHandler(this); 
      registerReceiver(receiver, filter); 
      mIsReceiverRegistered = true; 
     } 
    } 
} 
class DataBroadcastReceiver extends BroadcastReceiver{ 

    ActionListActivity activity = null; 
    ArrayList<Action> list; 

    public void setMainActivityHandler(ActionListActivity main){ 
     activity = main; 
    } 

    @Override 
    public void onReceive(Context context, Intent intent) { 
     Log.e("reciever","reciev"); 
     list = intent.getParcelableArrayListExtra(Utils.READ_ACTIONS_DATA); 
     for (Action action:list){ 
      if(activity!=null) { 
       activity.someTvTest(action); 
      } 
     } 
    } 
} 

Answer 1

Sie starten Aktivität und Service async. Sie müssen den Dienst in ActionListActivity starten und auf die Antwort warten.