Broadcastreceiver创建了TelephonyManager的多个实例
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26-10-2019 - |
题
这是我的广播员
public class PlayAudio extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
tm.listen(new CustomPhoneStateListener(context), PhoneStateListener.LISTEN_CALL_STATE);
}
}
这是我的自定义PhonEstateListener类
public class CustomPhoneStateListener extends PhoneStateListener {
Context context;
public CustomPhoneStateListener(Context context) {
super();
this.context = context;
}
@Override
public void onCallStateChanged(int state, String incomingNumber) {
super.onCallStateChanged(state, incomingNumber);
switch (state) {
case TelephonyManager.CALL_STATE_IDLE:
Log.d("PHONEA", "IDLE");
break;
case TelephonyManager.CALL_STATE_OFFHOOK:
Log.d("PHONEA", "OFFHOOK");
break;
case TelephonyManager.CALL_STATE_RINGING:
Log.d("PHONEA", "RINGING");
Intent intent = new Intent(this.context, AudioService.class);
context.startService(intent);
break;
default:
break;
}
}
}
这是我的服务
public class AudioService extends Service{
private static final String TAG = "PHONEA";
MediaPlayer player;
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onCreate() {
Log.d(TAG, "onCreate -> TODO");
}
}
我的问题是,每次我在广播接收器中收到数据时,我都会创建一个TelephonyManager的新实例。因此,当我第一次获得“响起”时,我第二次“响起”“响起”等等时。我什么时候应该创建我的TelephonyListener才能只有一个实例?
问候,尼科斯
解决方案
每次电话状态更改时,您都会收到接收器的电话(您正在收听Phonestate的屁股)。
您应该在接收器中放一些检查,然后进行启动 TelephonyManager
仅第一次。
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