如何解决尝试在 Android 11 中授予麦克风权限时应用程序崩溃
在除 Android 11 之外的其他版本的应用程序中工作正常。它给出了以下异常
AndroidRuntime: FATAL EXCEPTION: main
Process: com.connectmyhealth.patient.dev,PID: 14865
java.lang.RuntimeException: start Failed.
at android.media.MediaRecorder.start(Native Method)
at com.connectmyhealth.patient.commons.helper.soundMeter.start(SoundMeter.java:22)
at com.connectmyhealth.patient.ui.call.callpermissionsetup.CallPermissionSetupActivity$handleClickEvent$2.onClick(CallPermissionSetupActivity.kt:89)
at android.view.View.performClick(View.java:7559)
at android.view.View.performClickInternal(View.java:7536)
at android.view.View.access$3600(View.java:828)
at android.view.View$PerformClick.run(View.java:28699)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:236)
at android.app.ActivityThread.main(ActivityThread.java:7858)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:600)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:967)
这是启动MediaPlayer的代码
public void start() {
if (mRecorder == null) {
mRecorder = new MediaRecorder();
mRecorder.setAudioSource(MediaRecorder.AudioSource.VOICE_COMMUNICATION);
mRecorder.setoutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
mRecorder.setoutputFile("/dev/null");
try {
mRecorder.prepare();
} catch (IOException e) {
e.printstacktrace();
}
mRecorder.start();
}
}
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