java.lang.IllegalStateException at android.media.MediaRecorder.start when calling MediaRecorder.start in onLongClickListener

Question

I want to start recording a voice message with `MediaRecorder` when I hold down a button. I am getting an `IllegalStateException` when trying to start recording in a `onLongClickListener`. The error I am receiving as noted in the stacktrace is on Line 219: `recorder.start()` Why is this happening? ``` btnSendVoice.setOnLongClickListener(new OnLongClickListener() { @Override public boolean onLongClick(View view) { isVoiceButtonHeld = true; startRecording(); return false; } }); btnSendVoice.setOnTouchListener(new OnTouchListener() { @Override public boolean onTouch(View view, MotionEvent event) { view.onTouchEvent(event); if (event.getAction() == MotionEvent.ACTION_UP) { if (isVoiceButtonHeld) { isVoiceButtonHeld = false; stopRecording(); } } return false; } }); private void startRecording() { Toast.makeText(getActivity(), "Recording Message", Toast.LENGTH_SHORT).show(); filename = Environment.getExternalStorageDirectory().getAbsolutePath() + "/audiotest.3gp"; recorder = new MediaRecord…

Accepted Answer

You forgot to add `<uses-permission android:name="android.permission.RECORD_AUDIO" />` permission to record audio on your `Manifest.xml` file.

Edit: Your `onTouchListener` is interfering with `onLongClickListener` and may be stopping your `MediaRecorder` right after it is initialized and before it starts or even stopping it when the recorder is null. That gives origin to your `Exception`.

Note that If you comment the line `view.onTouchEvent(event);`, it starts recording, but it has an unpredictable behaviour from that moment on, according to the user action.

Be aware that the `Event.ACTION_CANCEL` is possible to happen on your scenario and must be taken into account in order to have your `recorder` stopped.

Make sure to check if your `recorder` is not null before calling `stop()`.

java.lang.IllegalStateException at android.media.MediaRecorder.start when calling MediaRecorder.start in onLongClickListener

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