從廣播接收器調用活動

我是一名Android初學者，我正在開發一個應用程序，其中BrocastReceiver在用戶撥打電話時啓動...我試圖監視廣播接收器內部的網絡狀態......並且我我想，當用戶掛斷電話，開始活動......但不幸的是它給我一個錯誤...請讓我知道如何做到這一點？從廣播接收器調用活動

我的廣播接收器正常啓動用戶時撥打電話......但我不知道如何在用戶正在通話時監聽BroadcastReceiver內部的網絡......並在用戶掛斷電話時從BroadcastReceiver調用活動...

請讓我k現在如何提前實現這一...謝謝.. :-)

我的代碼...

廣播接收器代碼

public class MoniterNetworkStatus extends BroadcastReceiver{ 

private ConnectivityManager connectivityManager; 
private NetworkInfo info; 

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

    Toast.makeText(context, "Monitering Network Status !!!", Toast.LENGTH_LONG).show(); 

    boolean networkStatus = false; 
    TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE); 
    connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); 


    Intent activityIntent = new Intent(context, NetworkStatusActivity.class); 

      // I am monitoring the network status as long as user is on call... 
    while(telephonyManager.getCallState()!= TelephonyManager.CALL_STATE_IDLE){ 

     info = connectivityManager.getActiveNetworkInfo(); 
     if(info == null){ 
      networkStatus = false; 
     }else if(info.getType() == ConnectivityManager.TYPE_MOBILE){ 

      networkStatus = info.isConnected(); 
     }else{ 
      networkStatus = false; 
     } 
    } 



    //Putting the network details in to the activity. 
    activityIntent.putExtra("operatorName", telephonyManager.getNetworkOperatorName()); 
    activityIntent.putExtra("networkStatus", networkStatus); 

      // starting the activity 
    context.startActivity(activityIntent); 
    abortBroadcast(); 

    } 
}

我的清單文件

<uses-sdk 
    android:minSdkVersion="8" 
    android:targetSdkVersion="8" /> 

<uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" /> 
<uses-permission android:name="android.permission.READ_PHONE_STATE" /> 
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/> 
<!-- <uses-permission android:name="android.permission.INTERNET"/> --> 

<application 
    android:allowBackup="true" 
    android:icon="@drawable/ic_launcher" 
    android:label="@string/app_name" 
    android:theme="@style/AppTheme" > 

    <activity android:name="com.abc.activity.NetworkStatusActivity"></activity> 

    <receiver android:name="com.abc.broadcastreceiver.MoniterNetworkStatus" 
     android:enabled="true" > 
     <intent-filter> 
      <action android:name="android.intent.action.NEW_OUTGOING_CALL" /> 
      <action android:name="android.intent.action.ANSWER" /> 
      <category android:name="android.intent.category.DEFAULT" /> 
     </intent-filter> 
    </receiver> 

</application>

我的廣播接收器正常啓動，當用戶撥打電話......但我不知道如何監控網絡，當用戶正在通話..並調用活動，當用戶掛斷電話......

請讓我知道如何提前實現這一...謝謝.. :-)

來源

2013-02-28 Sachidananda Naik