|  |  | 
 |  |  | import android.support.v4.content.PermissionChecker; | 
 |  |  | import android.widget.Toast; | 
 |  |  |  | 
 |  |  | import com.reyun.tracking.sdk.Tracking; | 
 |  |  | import com.unity3d.player.UnityPlayer; | 
 |  |  |  | 
 |  |  | import org.json.JSONObject; | 
 |  |  | 
 |  |  |  | 
 |  |  |     public static int getMetaInt(Activity activity, String key) | 
 |  |  |     { | 
 |  |  |         LogUtil.i(TAG, "将要获取的MetaKey: " + key); | 
 |  |  |         PackageManager _pkgMgr = activity.getPackageManager(); | 
 |  |  |         ApplicationInfo _appInfo; | 
 |  |  |         try | 
 |  |  | 
 |  |  |         return -1; | 
 |  |  |     } | 
 |  |  |  | 
 |  |  |     public static boolean isEmpty(String s) { | 
 |  |  |         if (null == s) | 
 |  |  |             return true; | 
 |  |  |         if (s.length() == 0) | 
 |  |  |             return true; | 
 |  |  |         if (s.trim().length() == 0) | 
 |  |  |             return true; | 
 |  |  |         return false; | 
 |  |  |     } | 
 |  |  | } |