java.lang.RuntimeException: Efekt motoru başlatılamıyor tip: 0bed4300-ddd6-11db-8f34-0002a5d5c51b Hata: -3

Question

Android MarshMellow, OnePlus'ta ekolayzır uygulamasında aşağıdaki hatayı alıyorum.

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.my.app.name/com.my.app.name.activity.MainActivity}: java.lang.RuntimeException: Cannot initialize effect engine for type: 0bed4300-ddd6-11db-8f34-0002a5d5c51b Error: -3 
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2450) 
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2510) 
    at android.app.ActivityThread.-wrap11(ActivityThread.java) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1363) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:148) 
    at android.app.ActivityThread.main(ActivityThread.java:5461) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
Caused by: java.lang.RuntimeException: Cannot initialize effect engine for type: 0bed4300-ddd6-11db-8f34-0002a5d5c51b Error: -3 
    at android.media.audiofx.AudioEffect.<init>(AudioEffect.java:411) 
    at android.media.audiofx.Equalizer.<init>(Equalizer.java:139) 
    at com.my.app.name.activity.MainActivity.onCreate(Unknown Source) 
    at android.app.Activity.performCreate(Activity.java:6251) 
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1108) 
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2403) 
    ... 9 more 

Şimdi bu durumda ekolayzır başlatmak çalıştığınızda oluşur: eşitleyici sınıfı bu İstisna atar ama neden meydana gelir ve nasıl tamir edilebilir

Equalizer eq = new Equalizer(0, 0); 

rağmen? Bu aynı zamanda diğer birkaç cihazda da gerçekleşir. Ancak Nexus ve çoğu cihazda iyi çalışıyor.

Birisi herhangi bir fikir verebilir mi? Ayrıca manifestimde aşağıdaki izne sahibim.

<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"/> 

Teşekkürler!

Answer 1

Nedeni EFFECT_TYPE_EQUALIZER. Bu kılavuzu okuyun, bence sizin için yararlı olacağını düşünüyorum:

import android.annotation.TargetApi; 
import android.content.Context; 
import android.content.Intent; 
import android.content.pm.ActivityInfo; 
import android.content.pm.PackageManager; 
import android.graphics.Bitmap; 
import android.graphics.BitmapFactory; 
import android.media.MediaMetadataRetriever; 
import android.media.audiofx.AudioEffect; 
import android.net.ConnectivityManager; 
import android.net.NetworkInfo; 
import android.os.Build; 

import com.marverenic.music.instances.Song; 
import com.marverenic.music.player.PlayerController; 

import java.util.UUID; 

import timber.log.Timber; 

import static android.content.Context.CONNECTIVITY_SERVICE; 

public final class Util { 

    /** 
    * This UUID corresponds to the UUID of an Equalizer Audio Effect. It has been copied from 
    * {@link AudioEffect#EFFECT_TYPE_EQUALIZER} for backwards compatibility since this field was 
    * added in API level 18. 
    */ 
    private static final UUID EQUALIZER_UUID; 

    static { 
     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) { 
      EQUALIZER_UUID = AudioEffect.EFFECT_TYPE_EQUALIZER; 
     } else { 
      EQUALIZER_UUID = UUID.fromString("0bed4300-ddd6-11db-8f34-0002a5d5c51b"); 
     } 
    } 

    /** 
    * This class is never instantiated 
    */ 
    private Util() { 

    } 

    /** 
    * Checks whether the device is in a state where we're able to access the internet. If the 
    * device is not connected to the internet, this will return {@code false}. If the device is 
    * only connected to a mobile network, this will return {@code allowMobileNetwork}. If the 
    * device is connected to an active WiFi network, this will return {@code true.} 
    * @param context A context used to check the current network status 
    * @param allowMobileNetwork Whether or not the user allows the application to use mobile 
    *       data. This is an internal implementation that is not enforced 
    *       by the system, but is exposed to the user in our app's settings. 
    * @return Whether network calls should happen in the current connection state or not 
    */ 
    @SuppressWarnings("SimplifiableIfStatement") 
    public static boolean canAccessInternet(Context context, boolean allowMobileNetwork) { 
     ConnectivityManager connectivityManager; 
     connectivityManager = (ConnectivityManager) context.getSystemService(CONNECTIVITY_SERVICE); 

     NetworkInfo info = connectivityManager.getActiveNetworkInfo(); 
     if (info == null) { 
      // No network connections are active 
      return false; 
     } else if (!info.isAvailable() || info.isRoaming()) { 
      // The network isn't active, or is a roaming network 
      return false; 
     } else if (info.getType() == ConnectivityManager.TYPE_MOBILE) { 
      // If it's a mobile network, return the user preference 
      return allowMobileNetwork; 
     } else { 
      // The network is a wifi network 
      return true; 
     } 
    } 

    @TargetApi(Build.VERSION_CODES.M) 
    public static boolean hasPermission(Context context, String permission) { 
     return context.checkSelfPermission(permission) == PackageManager.PERMISSION_GRANTED; 
    } 

    @TargetApi(Build.VERSION_CODES.M) 
    public static boolean hasPermissions(Context context, String... permissions) { 
     for (String permission : permissions) { 
      if (!hasPermission(context, permission)) { 
       return false; 
      } 
     } 
     return true; 
    } 

    public static Intent getSystemEqIntent(Context c) { 
     Intent systemEq = new Intent(AudioEffect.ACTION_DISPLAY_AUDIO_EFFECT_CONTROL_PANEL); 
     systemEq.putExtra(AudioEffect.EXTRA_PACKAGE_NAME, c.getPackageName()); 
     systemEq.putExtra(AudioEffect.EXTRA_AUDIO_SESSION, PlayerController.getAudioSessionId()); 

     ActivityInfo info = systemEq.resolveActivityInfo(c.getPackageManager(), 0); 
     if (info != null && !info.name.startsWith("com.android.musicfx")) { 
      return systemEq; 
     } else { 
      return null; 
     } 
    } 

    /** 
    * Checks whether the current device is capable of instantiating and using an 
    * {@link android.media.audiofx.Equalizer} 
    * @return True if an Equalizer may be used at runtime 
    */ 
    public static boolean hasEqualizer() { 
     for (AudioEffect.Descriptor effect : AudioEffect.queryEffects()) { 
      if (EQUALIZER_UUID.equals(effect.type)) { 
       return true; 
      } 
     } 
     return false; 
    } 

    public static Bitmap fetchFullArt(Song song) { 
     if (song == null) { 
      return null; 
     } 

     MediaMetadataRetriever retriever = new MediaMetadataRetriever(); 

     try { 
      retriever.setDataSource(song.getLocation()); 
      byte[] stream = retriever.getEmbeddedPicture(); 
      if (stream != null) { 
       return BitmapFactory.decodeByteArray(stream, 0, stream.length); 
      } 
     } catch (Exception e) { 
      Timber.e(e, "Failed to load full song artwork"); 
     } 
     return null; 
    } 

}