我正在尝试开发一个活动，在这个活动中，我可以录制我的音频，直到我触摸移动按钮上的按钮。释放后，文件应该保存在存储器中。文件被创建并保存在文件夹中，但当我正常单击按钮时，会发生错误。我已经尽了最大的努力，但每次我都会出错。得到一个错误，上面写着
java.lang.RuntimeException：停止失败。在android.media.MediaRecorder.stop(本机方法(
请帮我完成我的项目。
private void audiorecordermethod(){
if(checkPermission()){
capturebutton.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if(event.getAction() == MotionEvent.ACTION_DOWN){
validateMicAvailability();
AudioSavePathInDevice =
Environment.getExternalStorageDirectory().getAbsolutePath() + "/Alpha/Voice/Send/" ;
File audiodir = new File(AudioSavePathInDevice);
if (!audiodir.exists()){
audiodir.mkdirs();
}
String filepath = audiodir + "/"+ CreateRandomAudioFileName(5) + ".3gp";
MediaRecorderReady(filepath);
try {
mediaRecorder.prepare();
mediaRecorder.start();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return true;
}else if(event.getAction() == MotionEvent.ACTION_UP){
mediaRecorder.stop();
mediaRecorder.release();
return true;
}
return false;
}
});
}else{
requestPermission();
}
}
public void MediaRecorderReady(String filepath){
mediaRecorder=new MediaRecorder();
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.DEFAULT);
mediaRecorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
mediaRecorder.setAudioEncoder(MediaRecorder.OutputFormat.AMR_NB);
mediaRecorder.setOutputFile(filepath);
mediaRecorder.setAudioChannels(1);
mediaRecorder.setAudioSamplingRate(8000);
mediaRecorder.setAudioEncodingBitRate(44100);
}
public String CreateRandomAudioFileName(int string){
StringBuilder stringBuilder = new StringBuilder( string );
int i = 0 ;
while(i < string ) {
stringBuilder.append(RandomAudioFileName.
charAt(random.nextInt(RandomAudioFileName.length())));
i++ ;
}
return stringBuilder.toString();
}
private void requestPermission() {
ActivityCompat.requestPermissions(personalChat.this, new
String[]{WRITE_EXTERNAL_STORAGE, RECORD_AUDIO}, RequestPermissionCode);
}
@Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
switch (requestCode) {
case RequestPermissionCode:
if (grantResults.length> 0) {
boolean StoragePermission = grantResults[0] ==
PackageManager.PERMISSION_GRANTED;
boolean RecordPermission = grantResults[1] ==
PackageManager.PERMISSION_GRANTED;
if (StoragePermission && RecordPermission) {
Toast.makeText(personalChat.this, "Permission Granted",
Toast.LENGTH_LONG).show();
} else {
Toast.makeText(personalChat.this,"Permission Denied",Toast.LENGTH_LONG).show();
}
}
break;
}
}
public boolean checkPermission() {
int result = ContextCompat.checkSelfPermission(getApplicationContext(),
WRITE_EXTERNAL_STORAGE);
int result1 = ContextCompat.checkSelfPermission(getApplicationContext(),
RECORD_AUDIO);
return result == PackageManager.PERMISSION_GRANTED &&
result1 == PackageManager.PERMISSION_GRANTED;
}
Logcat
10-24 15:50:51.762 9687-9687/com.nanb.alpha E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.nanb.alpha, PID: 9687
java.lang.RuntimeException: stop failed.
at android.media.MediaRecorder.stop(Native Method)
at com.nanb.alpha.personalChat$7.onTouch(personalChat.java:312)
at android.view.View.dispatchTouchEvent(View.java:8476)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2408)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2107)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2408)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2107)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2408)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2107)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2408)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2107)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2408)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2107)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2408)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2107)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2408)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2107)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2408)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2107)
at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2402)
at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1752)
at android.app.Activity.dispatchTouchEvent(Activity.java:2785)
at androidx.appcompat.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:69)
at androidx.appcompat.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:69)
at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2363)
at android.view.View.dispatchPointerEvent(View.java:8677)
at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:4144)
at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4010)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3565)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3618)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3584)
at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3701)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3592)
at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:3758)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3565)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3618)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3584)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3592)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3565)
at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:5828)
at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:5802)
at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:5773)
at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:5918)
at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185)
at android.os.MessageQueue.nativePollOnce(Native Method)
at android.os.MessageQueue.next(MessageQueue.java:143)
at android.os.Looper.loop(Looper.java:122)
at android.app.ActivityThread.main(ActivityThread.java:5268)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:902)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:697)
发生这种情况是因为您试图在准备MediaRecorder之前停止它，一个快速的解决方案可能是：
try{
mediaRecorder.stop();
mediaRecorder.release();
}catch (Exception e){
}
检查文档：
请注意，RuntimeException是故意抛出到应用程序，如果在调用stop((。如果在start((。该故障使应用程序可以根据清理输出文件(例如，删除输出文件(，因为发生这种情况时，输出文件没有正确构造。