android - Android 5.1 中的语音通话录音

Question

我有一个应用程序可以记录传入和传出的语音调用，它在 marshmallow 或更高版本的设备上运行良好。但是当我尝试在 android 5.1.1 上运行它时，它给我错误，应用程序停止响应。

 The error shown in logcat is-ava.lang.RuntimeException: Unable to start service com.android.hitech.calls.Unused.MyRecordingService@2cb0b090 with Intent { cmp=com.android.hitech.calls/.Unused.MyRecordingService (has extras) }: java.lang.IllegalStateException
                                                    at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2925)
                                                    at android.app.ActivityThread.access$2100(ActivityThread.java:151)
                                                    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1408)
                                                    at android.os.Handler.dispatchMessage(Handler.java:102)
                                                    at android.os.Looper.loop(Looper.java:135)
                                                    at android.app.ActivityThread.main(ActivityThread.java:5268)
                                                    at java.lang.reflect.Method.invoke(Native Method)
                                                    at java.lang.reflect.Method.invoke(Method.java:372)
                                                    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:902)
                                                    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:697)
                                                 Caused by: java.lang.IllegalStateException
                                                    at android.media.MediaRecorder.start(Native Method)
                                                    at com.android.hitech.calls.Unused.MyRecordingService.onStartCommand(MyRecordingservice.java:88)
                                                    at android.app.ActivityThread.handleServiceArgs(ActivityThread.java:2908)

我用于录制语音通话的代码是-

   recorder = new MediaRecorder();
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        System.out.println("Present in MIC");
        recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
    } else {
        recorder.setAudioSource(MediaRecorder.AudioSource.VOICE_CALLS);

   }
    recorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
    recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
    recorder.setAudioEncodingBitRate(16);
    recorder.setAudioSamplingRate(44100);
    recorder.setOnErrorListener(this);
    recorder.setOnInfoListener(this);
    try {
        recorder.prepare();
        recorder.start();
    } catch (IOException e) {
        e.printStackTrace();
    }

编辑 - 我按照下面的答案中的建议做了，但我的错误仍然存​​在。通过稍微调整代码，调用状态现在只被调用一次，但应用程序仍然崩溃，甚至异常是相同的。

Answer 1

Because in android 5.1 android system triggers CALL_STATE twice every time...!! i.e. once your NEW_OUTGOING_CALL is started or if any incoming call STATE_RINGING , STATE_ONHOOK and STATE_IDLE gets triggered twice..!! You have to manage it via code.

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您可以在此处找到 5.1 以上问题的引用... This is causing error