獲得AndroidJavaException在Unity試圖調用類的構造函數

Question

我使用統一這個C＃代碼來訪問Java類時，.aar LIB：

AndroidJavaClass ajc; 
    private AndroidJavaObject ajo; 
    // Use this for initialization 
    void Start() { 
     ajc = new AndroidJavaClass("com.example.pc.superpoweredsdk.SuperPoweredPlayerWrapper"); 
     ajo = ajc.Get<AndroidJavaObject>("currentActivity"); 
    } 

但我在Android上得到這個錯誤的logcat：

AndroidJavaException：java.lang.NoSuchFieldError：no「Ljava/lang/Object;」類「Lcom/example/pc/superpoweredsdk/SuperPoweredPlayerWrapper;」中的字段「currentActivity」或其超類 07-01 12：31：08.640 1467 1485 I Unity：java.lang.NoSuchFieldError：no「Ljava/lang/Object;」類「Lcom/example/pc/superpoweredsdk/SuperPoweredPlayerWrapper;」中的字段「currentActivity」或其超

這是Java類和功能我試圖撥打：

public class SuperPoweredPlayerWrapper { 
    public SuperPoweredPlayerWrapper(Context context) { 
     int sampleRate = 44100; 
     int bufferSize = 512; 
     AssetFileDescriptor fd = context.getResources().openRawResourceFd(R.raw.lycka); 
     int fileOffset = (int)fd.getStartOffset(); 
     int fileLength = (int)fd.getLength(); 
     try { 
      fd.getParcelFileDescriptor().close(); 
     } catch (IOException e) { 
      android.util.Log.d("", "Close error."); 
     } 
     SuperpoweredPlayer(sampleRate, bufferSize, context.getPackageResourcePath(), fileOffset, fileLength); 
    } 

    private native void SuperpoweredPlayer(int sampleRate, int bufferSize, String apkPath, int fileOffset, int fileLength); 
    public native void playPause(boolean play); 
    public native void setTempo(double value); 

    static { 
     System.loadLibrary("SuperpoweredExample"); 
    } 
} 

如何調用這個類的構造函數與團結方面的參數？

Answer 1

currentActivity是com.unity3d.player.UnityPlayer的成員。

所以，這段代碼將獲取上下文

AndroidJavaClass ajc; 
AndroidJavaObject ajo,context; 
ajc = new AndroidJavaClass("com.unity3d.player.UnityPlayer"); 
     ajo = ajc.Get<AndroidJavaObject>("currentActivity"); 
context = ajo.Call<AndroidJavaObject>("getApplicationContext"); 

然後你做任何你想要的上下文。

調用構造：

AndroidJavaObject yourClassObject = new AndroidJavaObject("com.example.pc.superpoweredsdk.SuperPoweredPlayerWrapper",new object[]{context});