我有一个service
可以从以下位置启动和停止button
.
但在service
我想注册一个接收器来监听短信广播。我只想要service
在运行时监听短信。我试过registerReceiver(receiver, intentfilter)
但这不起作用。我究竟做错了什么?
如果您只想在服务运行时接收广播,则需要在 onCreate() 中动态注册接收器
另外,不要忘记在 onDestroy() 方法中取消注册接收器,这一点也很重要!
Example:
import android.app.Service;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.IBinder;
import android.widget.Toast;
public class YourClass extends Service {
private static final String ACTION="android.provider.Telephony.SMS_RECEIVED";
private BroadcastReceiver yourReceiver;
@Override
public IBinder onBind(Intent arg0) {
return null;
}
@Override
public void onCreate() {
super.onCreate();
final IntentFilter theFilter = new IntentFilter();
theFilter.addAction(ACTION);
this.yourReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
// Do whatever you need it to do when it receives the broadcast
// Example show a Toast message...
showSuccessfulBroadcast();
}
};
// Registers the receiver so that your service will listen for
// broadcasts
this.registerReceiver(this.yourReceiver, theFilter);
}
@Override
public void onDestroy() {
super.onDestroy();
// Do not forget to unregister the receiver!!!
this.unregisterReceiver(this.yourReceiver);
}
private void showSuccessfulBroadcast() {
Toast.makeText(this, "Broadcast Successful!!!", Toast.LENGTH_LONG)
.show();
}
}
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