MediaRecorder无效状态16 [英] MediaRecorder invalid state 16
本文介绍了MediaRecorder无效状态16的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我想录音并保存到SD卡中。我发现了一个无效状态异常。我已经添加了正确的权限,如RECORD_AUDIO和WRITE_EXTERNAL_STORAGE。我有$ P $调用start()之前ppared的MediaRecorder。
为什么会出现此异常。先谢谢了。
公共无效recordAudio(){ audioFilePath =
。Environment.getExternalStorageDirectory()getAbsolutePath()+/myaudio.3gp; 尝试{
mediaRecorder =新MediaRecorder();
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
mediaRecorder.setOutputFile(audioFilePath);
mediaRecorder.setAudioEn codeR(MediaRecorder.AudioEn coder.AMR_NB);
mediaRecorder prepare()。
}赶上(例外五){
e.printStackTrace();
}
mediaRecorder.start(); 最后ProgressDialog mProgressDialog =新ProgressDialog(RecordActivity.this);
mProgressDialog.setTitle(记录......);
mProgressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
mProgressDialog.setButton(停止,新DialogInterface.OnClickListener(){
公共无效的onClick(DialogInterface对话,诠释whichButton){
mProgressDialog.dismiss();
mediaRecorder.stop();
mediaRecorder.release();
}
}); mProgressDialog.setOnCancelListener(新DialogInterface.OnCancelListener(){
公共无效onCancel(DialogInterface P1){
mediaRecorder.stop();
mediaRecorder.release();
}
});
mediaRecorder.start();
mProgressDialog.show();
}
} // RecordActivity结束
10-31 14:48:50.034:E / MediaRecorder(29120):启动名为无效状态:16
10-31 14:48:50.044:E / AndroidRuntime(29120):致命异常:主要
10-31 14:48:50.044:E / AndroidRuntime(29120):了java.lang.RuntimeException:无法启动活动ComponentInfo {com.carefreegroup.rr3 / com.carefreegroup.rr3.RecordActivity}:java.lang.IllegalStateException
10-31 14:48:50.044:E / AndroidRuntime(29120):在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2463)
10-31 14:48:50.044:E / AndroidRuntime(29120):在android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2520)
10-31 14:48:50.044:E / AndroidRuntime(29120):在android.app.ActivityThread.access $ 600(ActivityThread.java:162)
10-31 14:48:50.044:E / AndroidRuntime(29120):在android.app.ActivityThread $ H.handleMessage(ActivityThread.java:1366)
10-31 14:48:50.044:E / AndroidRuntime(29120):在android.os.Handler.dispatchMessage(Handler.java:99)
10-31 14:48:50.044:E / AndroidRuntime(29120):在android.os.Looper.loop(Looper.java:158)
10-31 14:48:50.044:E / AndroidRuntime(29120):在android.app.ActivityThread.main(ActivityThread.java:5751)
10-31 14:48:50.044:E / AndroidRuntime(29120):在java.lang.reflect.Method.invokeNative(本机方法)
10-31 14:48:50.044:E / AndroidRuntime(29120):在java.lang.reflect.Method.invoke(Method.java:511)
10-31 14:48:50.044:E / AndroidRuntime(29120):在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:1083)
10-31 14:48:50.044:E / AndroidRuntime(29120):在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:850)
10-31 14:48:50.044:E / AndroidRuntime(29120):在dalvik.system.NativeStart.main(本机方法)
10-31 14:48:50.044:E / AndroidRuntime(29120):致:java.lang.IllegalStateException
10-31 14:48:50.044:E / AndroidRuntime(29120):在android.media.MediaRecorder._start(本机方法)
10-31 14:48:50.044:E / AndroidRuntime(29120):在android.media.MediaRecorder.start(MediaRecorder.java:805)
10-31 14:48:50.044:E / AndroidRuntime(29120):在com.carefreegroup.rr3.RecordActivity.recordAudio(RecordActivity.java:65)
10-31 14:48:50.044:E / AndroidRuntime(29120):在com.carefreegroup.rr3.RecordActivity.onCreate(RecordActivity.java:25)
10-31 14:48:50.044:E / AndroidRuntime(29120):在android.app.Activity.performCreate(Activity.java:5165)
10-31 14:48:50.044:E / AndroidRuntime(29120):在android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1103)
10-31 14:48:50.044:E / AndroidRuntime(29120):在android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2419)
解决方案
您有两个呼叫mediaRecorder.start(){REF。迈克尔,上述}。此外,.stop()/。发布()后,添加mediaRecorder = NULL。
I'm trying to record audio and save to the sdcard. I'm getting an invalid state exception. I've added the correct permissions eg record_audio and write_external_storage. I've prepared the MediaRecorder before calling start().
Why am i getting this exception. Thanks in advance.
public void recordAudio() {
audioFilePath =
Environment.getExternalStorageDirectory().getAbsolutePath() + "/myaudio.3gp";
try {
mediaRecorder = new MediaRecorder();
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
mediaRecorder.setOutputFile(audioFilePath);
mediaRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
mediaRecorder.prepare();
} catch (Exception e) {
e.printStackTrace();
}
mediaRecorder.start();
final ProgressDialog mProgressDialog = new ProgressDialog(RecordActivity.this);
mProgressDialog.setTitle("Recording...");
mProgressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
mProgressDialog.setButton("Stop", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int whichButton) {
mProgressDialog.dismiss();
mediaRecorder.stop();
mediaRecorder.release();
}
});
mProgressDialog.setOnCancelListener(new DialogInterface.OnCancelListener(){
public void onCancel(DialogInterface p1) {
mediaRecorder.stop();
mediaRecorder.release();
}
});
mediaRecorder.start();
mProgressDialog.show();
}
}//end of RecordActivity
.
10-31 14:48:50.034: E/MediaRecorder(29120): start called in an invalid state: 16
10-31 14:48:50.044: E/AndroidRuntime(29120): FATAL EXCEPTION: main
10-31 14:48:50.044: E/AndroidRuntime(29120): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.carefreegroup.rr3/com.carefreegroup.rr3.RecordActivity}: java.lang.IllegalStateException
10-31 14:48:50.044: E/AndroidRuntime(29120): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2463)
10-31 14:48:50.044: E/AndroidRuntime(29120): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2520)
10-31 14:48:50.044: E/AndroidRuntime(29120): at android.app.ActivityThread.access$600(ActivityThread.java:162)
10-31 14:48:50.044: E/AndroidRuntime(29120): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1366)
10-31 14:48:50.044: E/AndroidRuntime(29120): at android.os.Handler.dispatchMessage(Handler.java:99)
10-31 14:48:50.044: E/AndroidRuntime(29120): at android.os.Looper.loop(Looper.java:158)
10-31 14:48:50.044: E/AndroidRuntime(29120): at android.app.ActivityThread.main(ActivityThread.java:5751)
10-31 14:48:50.044: E/AndroidRuntime(29120): at java.lang.reflect.Method.invokeNative(Native Method)
10-31 14:48:50.044: E/AndroidRuntime(29120): at java.lang.reflect.Method.invoke(Method.java:511)
10-31 14:48:50.044: E/AndroidRuntime(29120): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1083)
10-31 14:48:50.044: E/AndroidRuntime(29120): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:850)
10-31 14:48:50.044: E/AndroidRuntime(29120): at dalvik.system.NativeStart.main(Native Method)
10-31 14:48:50.044: E/AndroidRuntime(29120): Caused by: java.lang.IllegalStateException
10-31 14:48:50.044: E/AndroidRuntime(29120): at android.media.MediaRecorder._start(Native Method)
10-31 14:48:50.044: E/AndroidRuntime(29120): at android.media.MediaRecorder.start(MediaRecorder.java:805)
10-31 14:48:50.044: E/AndroidRuntime(29120): at com.carefreegroup.rr3.RecordActivity.recordAudio(RecordActivity.java:65)
10-31 14:48:50.044: E/AndroidRuntime(29120): at com.carefreegroup.rr3.RecordActivity.onCreate(RecordActivity.java:25)
10-31 14:48:50.044: E/AndroidRuntime(29120): at android.app.Activity.performCreate(Activity.java:5165)
10-31 14:48:50.044: E/AndroidRuntime(29120): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1103)
10-31 14:48:50.044: E/AndroidRuntime(29120): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2419)
解决方案
You have two calls to mediaRecorder.start() {ref. Michael, above}. Also, after .stop()/.release(), add mediaRecorder=null.
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