Android 在onReceive之后保持BroadcastReceiver活动

我有CallReceiver扩展了BroadcastReceiver类，该类通过MediaRecorder实例记录电话呼叫。问题是每次我的服务接收到意图时，都会使用Unitized recorder创建一个新的PhoneCallReceiver实例。因此我无法停止记录。当然，我可以将recorder实例存储在静态变量中，但这是脏的黑客。我相信一定有办法保持服务的活力 这是我的接收机等级：

public class CallReceiver extends PhoneCallReceiver {
    private static VoiceRecorder recorder; // VoiceRecorder stores MediaRecorder instance 
    @Override
    protected void onIncomingCallReceived(Context ctx, String number, Date start)
    {
        Log.d("phone","onIncomingCallReceived");
    }

    @Override
    protected void onIncomingCallAnswered(Context ctx, String number, Date start)
    {
        Log.d("phone","onIncomingCallAnswered");
        MainActivity.recorder=new VoiceRecorder("incoming_"+number);
        try {
            MainActivity.recorder.start();
        } catch (IOException e) {
            Log.d("phone error",e.getLocalizedMessage());
            e.printStackTrace();
        }
    }

    @Override
    protected void onIncomingCallEnded(Context ctx, String number, Date start, Date end)
    {
        Log.d("phone","onIncomingCallEnded");
        if (MainActivity.recorder!=null) {
            try {
                MainActivity.recorder.stop();
            } catch (Exception e) {
                Log.d("phone record error",e.getLocalizedMessage());
                e.printStackTrace();
            }
            MainActivity.recorder=null;
        }
    }

    @Override
    protected void onOutgoingCallStarted(Context ctx, String number, Date start)
    {
        Log.d("phone","onOutgoingCallStarted "+MainActivity.recorder);
        MainActivity.recorder=new VoiceRecorder("outgoing_"+number);
        try {
            MainActivity.recorder.start();
        } catch (IOException e) {
            Log.d("phone error",e.getLocalizedMessage());
            e.printStackTrace();
        }
    }

    @Override
    protected void onOutgoingCallEnded(Context ctx, String number, Date start, Date end)
    {
        Log.d("phone","onOutgoingCallEnded "+MainActivity.recorder);
        if (MainActivity.recorder!=null) {
            try {
                MainActivity.recorder.stop();
            } catch (IOException e) {
                e.printStackTrace();
            }
            MainActivity.recorder=null;
        }
    }

    @Override
    protected void onMissedCall(Context ctx, String number, Date start)
    {
        Log.d("phone","onMissedCall");
    }

}

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您的PhoneCallReceiver不应具有MediaRecorder。它应该委托给具有MediaRecorder的前台服务。服务可以保持稳定。通过比较，清单中注册的BroadcastReceiver仅用于一个onReceive呼叫。

您的PhoneCallReceiver不应具有MediaRecorder。它应该委托给具有MediaRecorder的前台服务。除此之外，您可能还想用一个说明您的问题的图标来编辑您的问题。@Commonware so静态变量在这种情况下可以吗？PS:更新了postso静态变量在这种情况下可以吗？-不。这是我的服务类-看起来不是服务。它似乎是一个广播接收器。@Commonware Thank不知道前台服务。它工作得很好！你能把你的评论作为一个答案，让我接受吗？