的Android爲什麼的onReceive（）不工作

Question

我有一類接收SMS：

package com.example.app; 
import android.content.BroadcastReceiver; 
import android.content.Context; 
import android.content.Intent; 
import android.os.Bundle; 
import android.telephony.gsm.SmsManager; 
import android.telephony.gsm.SmsMessage; 
import android.util.Log; 
import android.widget.TextView; 
import android.widget.Toast; 

public class SmsReceiver extends BroadcastReceiver 
{ 
    // Get the object of SmsManager 
    final SmsManager sms = SmsManager.getDefault(); 

    public void onReceive(Context context, Intent intent) { 
     Log.i("SmsReceiver", "senderNum: "); 
     // Retrieves a map of extended data from the intent. 
     final Bundle bundle = intent.getExtras(); 

     try { 

      if (bundle != null) { 

       final Object[] pdusObj = (Object[]) bundle.get("pdus"); 

       for (int i = 0; i < pdusObj.length; i++) { 

        SmsMessage currentMessage = SmsMessage.createFromPdu((byte[]) pdusObj[i]); 
        String phoneNumber = currentMessage.getDisplayOriginatingAddress(); 

        String senderNum = phoneNumber; 
        String message = currentMessage.getDisplayMessageBody(); 

        Log.i("SmsReceiver", "senderNum: "+ senderNum + "; message: " + message); 


        // Show Alert 
        int duration = Toast.LENGTH_LONG; 
        Toast toast = Toast.makeText(context, 
          "senderNum: "+ senderNum + ", message: " + message, duration); 
        toast.show(); 

       } // end for loop 
      } // bundle is null 

     } catch (Exception e) { 
      Log.e("SmsReceiver", "Exception smsReceiver" +e); 

     } 
    } 
} 

MainActivity：

package com.example.app; 

     import android.support.v7.app.ActionBarActivity; 
     import android.support.v7.app.ActionBar; 
     import android.support.v4.app.Fragment; 
     import android.os.Bundle; 
     import android.util.Log; 
     import android.view.LayoutInflater; 
     import android.view.Menu; 
     import android.view.MenuItem; 
     import android.view.View; 
     import android.view.ViewGroup; 
     import android.os.Build; 
     import android.widget.TextView; 

public class MainActivity extends ActionBarActivity { 


    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     Log.i("SmsReceiver", "senderNum: "); 
     setContentView(R.layout.activity_main); 

     if (savedInstanceState == null) { 
      getSupportFragmentManager().beginTransaction() 
        .add(R.id.container, new PlaceholderFragment()) 
        .commit(); 
     } 

    } 


    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 

     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.main, menu); 
     return true; 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     // Handle action bar item clicks here. The action bar will 
     // automatically handle clicks on the Home/Up button, so long 
     // as you specify a parent activity in AndroidManifest.xml. 
     int id = item.getItemId(); 
     if (id == R.id.action_settings) { 
      return true; 
     } 
     return super.onOptionsItemSelected(item); 
    } 

    /** 
    * A placeholder fragment containing a simple view. 
    */ 
    public static class PlaceholderFragment extends Fragment { 

     public PlaceholderFragment() { 
     } 

     @Override 
     public View onCreateView(LayoutInflater inflater, ViewGroup container, 
           Bundle savedInstanceState) { 
      View rootView = inflater.inflate(R.layout.fragment_main, container, false); 
      return rootView; 
     } 
    } 


} 

清單：

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.example.app" > 

    <application 
     android:allowBackup="true" 
     android:icon="@drawable/ic_launcher" 
     android:label="@string/app_name" 
     android:theme="@style/AppTheme" > 
     <activity 
      android:name="com.example.app.MainActivity" 
      android:label="@string/app_name" > 
      <intent-filter> 
       <action android:name="android.intent.action.MAIN" /> 

       <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
      <receiver android:name=".SmsReceiver"> 
       <intent-filter> 
        <action android:name= 
         "android.provider.Telephony.SMS_RECEIVED" /> 
       </intent-filter> 
      </receiver> 
     </activity> 
    </application> 

    <uses-permission android:name="android.permission.RECEIVE_SMS"></uses-permission> 
    <uses-permission android:name="android.permission.READ_SMS" /> 
    <uses-permission android:name="android.permission.SEND_SMS"></uses-permission> 
</manifest> 

的onReceive沒有方法執行。我可以在日誌中看到它（沒有日誌）。我通過telnet發送短信 - 模擬器接收短信，但沒有應用程序。爲什麼？怎麼了 ？

Answer 1

就拿這裏看看http://developer.android.com/guide/topics/manifest/receiver-element.html 接收機包含內部應用節點。將其移出活動

Answer 2

IntentFilter filter = new IntentFilter("IntentTag"); 
registerReceiver(new SmsReceiver(), filter);