判断网络的状态断开与否

public class ConnectionChangeReceiver extends BroadcastReceiver{@Overridepublic void onReceive( Context context, Intent intent ){ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE );NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();NetworkInfo mobNetInfo = connectivityManager.getNetworkInfo(     ConnectivityManager.TYPE_MOBILE );if ( activeNetInfo != null ){Toast.makeText( context, ”Active Network Type : “ + activeNetInfo.getTypeName(), Toast.LENGTH_SHORT).show();}if( mobNetInfo != null ){Toast.makeText( context, ”Mobile Network Type : “ + mobNetInfo.getTypeName(), Toast.LENGTH_SHORT).show();}}}<!– Needed to check when the network connection changes –><uses-permission android:name=”android.permission.ACCESS_NETWORK_STATE”/><receiver android:name=”com.blackboard.androidtest.receiver.ConnectionChangeReceiver”android:label=”NetworkConnection”><intent-filter><action android:name=”android.net.conn.CONNECTIVITY_CHANGE”/></intent-filter></receiver>