尝试在 setOnTouchListener 上录制音频时应用程序崩溃

Question

这个问题已经有人问过，但我找不到我的解决方案。

我正在做的是，OnTouchListener 的 MotionEvent.ACTION_DOWN 我开始录制音频，在 MotionEvent.ACTION_UP 我停止了音频录制。

在长按该图标期间，它工作正常，但 onclick 应用程序崩溃了。这是我的

audio.setOnClickListener(new View.OnClickListener(){
        @Override
        public void onClick(View v) {
            Toast.makeText(Chat.this, "You Have to hold the Button for audio recording.", Toast.LENGTH_LONG).show();
        }
    });

audio.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            if (event.getAction() == MotionEvent.ACTION_DOWN) {
                MediaRecorderReady();
                try {
                    mediaRecorder.prepare();
                    mediaRecorder.start();
                } catch (IllegalStateException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }

            } else if (event.getAction() == MotionEvent.ACTION_UP) {
                if (mediaRecorder != null) {
                    mediaRecorder.stop();
                }
            }
            return true;
        }
    });

 public void MediaRecorderReady() {
    mediaRecorder = new MediaRecorder();
    mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
    mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
    mediaRecorder.setAudioEncoder(MediaRecorder.OutputFormat.AMR_NB);
    mediaRecorder.setOutputFile(AudioSavePathInDevice);
}

这是我的问题，当我单击该按钮时，应用程序崩溃了

Answer 1

喜欢下面。

private MediaRecorder myAudioRecorder;
    private MediaPlayer mPlayer;

audio.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View v, MotionEvent event) {
            if (event.getAction() == MotionEvent.ACTION_DOWN) {
                initializeRecorder();                  
                recordFile(); 

            } else if (event.getAction() == MotionEvent.ACTION_UP) {
                stopRecording();
            }
            return true;
        }
    });

private void initializeRecorder() {
        File cacheDir = new File(Utils.SD_CARD, Utils.RECORDING_CACHE);
        if (!(cacheDir.exists())) {
            cacheDir.mkdirs();
        }

        outputFile = cacheDir + "/" + String.format("%s.m4a", System.currentTimeMillis());

        mPlayer = new MediaPlayer();
        myAudioRecorder = new MediaRecorder();
        myAudioRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);

        //original
        myAudioRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
        myAudioRecorder.setAudioEncoder(MediaRecorder.OutputFormat.AMR_NB);
        myAudioRecorder.setOutputFile(outputFile);

    }

private void recordFile() {
        try {
            myAudioRecorder.prepare();
            myAudioRecorder.start();
        } catch (IOException e) {
            e.printStackTrace();
        }  
    }

private void stopRecording(){
     myAudioRecorder.stop();
     myAudioRecorder.release();
}

Answer 2

检查这个答案 Android mediarecorder stop failed 并阅读有关 mediaRecorder 及其状态的官方文档。 https://developer.android.com/reference/android/media/MediaRecorder.html 崩溃是因为你停止媒体播放器和媒体播放器不在录制状态.. 非录音状态不要直接调用stop

try {
     mRecorder.stop();
    } 
     catch(RuntimeException e) {
     } 
      finally {
               mRecorder.release();
               mRecorder = null;
     }

尝试在 setOnTouchListener 上录制音频时应用程序崩溃

App is crashing when trying to record audio on setOnTouchListener

android

onclicklistener

ontouchlistener

touch-event

android-audiorecord