java.lang.UnsupportedOperationException:AudioEffect:Android牛轧糖(7.0)上无效的参数操作异常 [英] java.lang.UnsupportedOperationException: AudioEffect: invalid parameter operation exception on Android Nougat (7.0)

问题描述

我已经在活动的onCreate方法中编写了以下代码.

I have written below code in onCreate method of activity.

MusicPlayer.getEqualizerHelper().getCurrentEqualizer().usePreset((short) 0); --- line no 1
short numberFrequencyBands = MusicPlayer.getEqualizerHelper().getCurrentEqualizer().getNumberOfBands();--- line no 2
final short lowerEqualizerBandLevel = MusicPlayer.getEqualizerHelper().getCurrentEqualizer().getBandLevelRange()[0];--- line no 3

，它在牛轧糖以下的所有android o.s中都可以正常工作.当我在牛轧糖设备上安装我的应用程序时，它会在第1行抛出异常.请向我建议问题所在和解决方案. 预先感谢

and it works fine in all android o.s below nougat. When I install my app on nougat device it throws exception on line no 1. Please suggest me where is the problem and solution for it. Thanks in advance

致命异常:主要 流程:com.ag.musicplayer，PID:15039 java.lang.RuntimeException:无法启动活动

FATAL EXCEPTION: main Process: com.ag.musicplayer, PID: 15039 java.lang.RuntimeException: Unable to start activity

ComponentInfo {com.ag.musicplayer/com.ag.musicplayer.activity.EqualizerActivity}: java.lang.UnsupportedOperationException:AudioEffect:无效 参数运算 在 android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2646) 在 android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707) 在android.app.ActivityThread.-wrap12(ActivityThread.java) 在 android.app.ActivityThread $ H.handleMessage(ActivityThread.java:1460) 在android.os.Handler.dispatchMessage(Handler.java:102) 在android.os.Looper.loop(Looper.java:154) 在android.app.ActivityThread.main(ActivityThread.java:6077) 在java.lang.reflect.Method.invoke(本机方法) 在 com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:865) 在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755) 引起原因:java.lang.UnsupportedOperationException:AudioEffect: 无效的参数操作 在 android.media.audiofx.AudioEffect.checkStatus(AudioEffect.java:1273) 在android.media.audiofx.Equalizer.usePreset(Equalizer.java:335) 在 com.ag.musicplayer.activity.EqualizerActivity.onCreate(EqualizerActivity.java:287) 在android.app.Activity.performCreate(Activity.java:6664) 在 android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119) 在 android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2599) 在 android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707) 在android.app.ActivityThread.-wrap12(ActivityThread.java) 在 android.app.ActivityThread $ H.handleMessage(ActivityThread.java:1460) 在android.os.Handler.dispatchMessage(Handler.java:102) 在android.os.Looper.loop(Looper.java:154) 在android.app.ActivityThread.main(ActivityThread.java:6077) 在java.lang.reflect.Method.invoke(本机方法) 在 com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:865) 在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)

ComponentInfo{com.ag.musicplayer/com.ag.musicplayer.activity.EqualizerActivity}: java.lang.UnsupportedOperationException: AudioEffect: invalid parameter operation at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2646) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707) at android.app.ActivityThread.-wrap12(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:154) at android.app.ActivityThread.main(ActivityThread.java:6077) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755) Caused by: java.lang.UnsupportedOperationException: AudioEffect: invalid parameter operation at android.media.audiofx.AudioEffect.checkStatus(AudioEffect.java:1273) at android.media.audiofx.Equalizer.usePreset(Equalizer.java:335) at com.ag.musicplayer.activity.EqualizerActivity.onCreate(EqualizerActivity.java:287) at android.app.Activity.performCreate(Activity.java:6664) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2599) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2707)  at android.app.ActivityThread.-wrap12(ActivityThread.java)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1460)  at android.os.Handler.dispatchMessage(Handler.java:102)  at android.os.Looper.loop(Looper.java:154)  at android.app.ActivityThread.main(ActivityThread.java:6077)  at java.lang.reflect.Method.invoke(Native Method)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)

推荐答案

如果您在自定义ROM(以及使用系统均衡器的其他旧版ROM)上运行，则必须为音频会话ID禁用系统均衡器:

If you run on custom ROM (but also other legacy rom that use a system Equalizer), you must disable system equalizer for your audio session id:

    private  void unbindSystemEqualizer(int audioSessionId) {
    Intent intent = new Intent(AudioEffect.ACTION_CLOSE_AUDIO_EFFECT_CONTROL_SESSION);
    intent.putExtra(AudioEffect.EXTRA_AUDIO_SESSION, audioSessionId);
    intent.putExtra(AudioEffect.EXTRA_PACKAGE_NAME, mContext.getPackageName());
    mContext.sendBroadcast(intent);
}

在启动广播意图之前，请确保已启用自定义均衡器并且设置可用. 这对我有用.

Have sure that your custom Equalizer is enabled and a settings was available before launching broadcast intent This work for me.

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