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我想攔截收到的消息,所以我創建了一個擴展BroadcastReceiver的類(如給定here),但是因爲我想控制接收器(在需要時停止它),我實現了this,但現在當我退出活動時,接收器不起作用。在活動未激活時接收廣播
如何實現接收器,使其可以控制並在活動未運行時接收廣播?
Mainactivity
public class MainActivity extends Activity {
Button StopB;
IntentFilter STARTER;
final BroadcastReceiver MSgR=new BR();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
StopB=(Button) findViewById(R.id.button1);
final BroadcastReceiver MSgR=new BR();
STARTER=new IntentFilter();
STARTER.addAction("android.provider.Telephony.SMS_RECEIVED");
registerReceiver(MSgR, STARTER);
StopB.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
Log.i("Pressed", "UNRGSTR");
unregisterReceiver(MSgR);
}
}) ;
}
BR.java
public class BR extends BroadcastReceiver{
String TAG="DELETE BLOCK";
@Override
public void onReceive(Context context, Intent intent) {
// TODO Auto-generated method stub
// do something here
}
清單
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.RECEIVE_SMS"/>
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.delete_sms_2.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<receiver android:name="BR"></receiver>
</application>
</manifest>
如果我這樣做我不能註銷接收器 – dreamer1989 2013-04-24 06:38:12
你可以做任何事情的廣播接收器。一次控制器去你的廣播接收器和匹配條件,這取決於你將如何使用它 – stackoverflow 2013-04-24 06:43:04
如果你不想添加reciver,有其他方法可以這樣做http://stackoverflow.com/questions/16182314/sms-broadcast-receiver-without-manifest – stackoverflow 2013-04-24 06:46:20