Question by adrienPlayerium · Aug 24, 2017 at 03:50 AM · androidplugin

Android plug-in - how to convert AndroidJavaObject to String[]?

Hi guys,

I am having trouble converting a valid AndroidJavaObject to a String[]. Or am I doing something wrong?

Making an Android lib plug-in, I am having trouble reading the output of a function. The return type is ArrayList from my java class.

     public static ArrayList<String> getGrantedPermissions(Context c, final String appPackage) {
         ArrayList<String> granted = new ArrayList<String>();
         try {
             PackageInfo pi = c.getPackageManager().getPackageInfo(appPackage, PackageManager.GET_PERMISSIONS);
             for (int i = 0; i < pi.requestedPermissions.length; i++) {
                 if ((pi.requestedPermissionsFlags[i] & PackageInfo.REQUESTED_PERMISSION_GRANTED) != 0) {
                     granted.add(pi.requestedPermissions[i]);
                     Log.i("Unity",pi.requestedPermissions[i]);
                 }
             }
         } catch (Exception e) {
         }
         return granted;
     }

Now from C# I am using

     AndroidJavaObject j = ajc.CallStatic<AndroidJavaObject>("getGrantedPermissions", new object[2] { jo, Application.identifier});
     if (j.GetRawObject().ToInt32() != 0)
     {
       Debug.Log("valid");
       String[] res = AndroidJNIHelper.ConvertFromJNIArray<String[]>(j.GetRawObject());
       foreach (var s in res)
       {
         Debug.Log("perm " + s);
       }
     }
     else
     {
       Debug.Log("Error null ptr");
     }

Any hint will be welcome~ Currently the logcat gives me

JNI DETECTED ERROR IN APPLICATION: jarray argument has non-array type: java.util.ArrayList in call to GetArrayLength from boolean com.unity3d.player.UnityPlayer.nativeRender()

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