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POandroid - MediaRecorder throws illegalstateexception
 

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  1. POandroid - MediaRecorder throws illegalstateexception
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    <p>I am trying to develop a simple android audio recorder.Everything builds fine and it also runs fine on the android device. It seems like i can start the recording but when i want to stop it throws a IllegalStateException. I can't find the mistake. Here is the code:</p> <pre><code>public class VoiceRecorder { MediaRecorder recorder= new MediaRecorder(); static Context cont; public void startRecord(Context context) throws IllegalStateException, IOException{ cont = context; recorder.setAudioSource(MediaRecorder.AudioSource.MIC); recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP); recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB); recorder.setOutputFile(cont.getFilesDir()+"/recordings.3gp"); recorder.prepare(); recorder.start(); } public void stopRecording(Context context) { cont = context; recorder.stop(); recorder.release(); File file = new File (cont.getFilesDir()+"/recordings.3gp"); UploadFile.uploadFile("recordings.3gp", file); recorder = null; } } </code></pre> <p>I want to trigger it with:</p> <p>VoiceRecorder vr = new VoiceRecorder();</p> <p>vr.startRecord(cont);</p> <p>vr.stopRecording(cont);</p> <p>when calling start Logcat says: (what should be ok)</p> <pre><code>09-06 22:56:42.830: D/AudioHardwareMSM72XX(123): audpre_index = 0, tx_iir_index = 0 09-06 22:56:42.840: D/HTC Acoustic(123): msm72xx_enable_audpre: 0x0000 09-06 22:56:42.850: I/AudioHardwareMSM72XX(123): Routing audio to Speakerphone 09-06 22:56:42.850: D/HTC Acoustic(123): msm72xx_enable_audpp: 0x0001 09-06 22:56:42.850: I/AudioHardwareMSM72XX(123): Routing audio to Speakerphone 09-06 22:56:42.860: D/HTC Acoustic(123): msm72xx_enable_audpp: 0x0001 09-06 22:56:42.870: D/AudioFlinger(123): setParameters(): io 3, keyvalue routing=262144;vr_mode=0, tid 156, calling tid 123 09-06 22:56:42.870: I/AudioHardwareMSM72XX(123): Routing audio to Speakerphone 09-06 22:56:42.880: D/AudioHardwareMSM72XX(123): audpre_index = 0, tx_iir_index = 0 09-06 22:56:42.880: D/HTC Acoustic(123): msm72xx_enable_audpre: 0x0000 09-06 22:56:42.880: I/AudioHardwareMSM72XX(123): do input routing device 40000 09-06 22:56:42.880: I/AudioHardwareMSM72XX(123): Routing audio to Speakerphone 09-06 22:56:42.890: D/HTC Acoustic(123): msm72xx_enable_audpp: 0x0001 </code></pre> <p>But when i call stop:</p> <pre><code>09-06 22:59:52.440: E/MediaRecorder(1069): stop called in an invalid state: 1 09-06 22:59:52.440: W/System.err(1069): java.lang.IllegalStateException 09-06 22:59:52.460: W/System.err(1069): at android.media.MediaRecorder.stop(Native Method) 09-06 22:59:52.460: W/System.err(1069): at de.spyapp.VoiceRecorder.stopRecording(VoiceRecorder.java:33) 09-06 22:59:52.460: W/System.err(1069): at de.spyapp.CheckCMD.checkCMD(CheckCMD.java:30) 09-06 22:59:52.460: W/System.err(1069): at de.spyapp.AppActivity$2.run(AppActivity.java:44) 09-06 22:59:52.460: W/System.err(1069): at java.lang.Thread.run(Thread.java:1096) </code></pre>
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