android native判断是否有定位权限

/**  
 * 判断是否有定位权限  android在23之后有动态获取权限方法23之下需要抓异常去判断是否开启  
 */  
Utils.prototype.getLocationPermission = function () {  
  var main = plus.android.runtimeMainActivity();  
  var Build = plus.android.importClass("android.os.Build");  
  var Manifest = plus.android.importClass("android.Manifest");  
  var PackageManager = plus.android.importClass("android.content.pm.PackageManager");  
  //上面三个导入android的类  

  var Permission = Manifest.permission;  
  var VERSION = Build.VERSION;  
  var VERSION_CODES = Build.VERSION_CODES;  
  //Permission.ACCESS_FINE_LOCATION对应定位的权限。  

  var isCheck = Permission.ACCESS_FINE_LOCATION;  
  var pkName = main.getPackageName();  
  var packageManager = main.getPackageManager();  
  console.log(isCheck);  
  var GRANTED = '';  
  //android6.0以上可以动态判断是否开启权限 6.0对应的是android 23版本 VERSION_CODES.M  

  if (VERSION.SDK_INT >= VERSION_CODES.M) {  
    GRANTED = plus.android.invoke(main, 'checkSelfPermission', isCheck);  
    alert(GRANTED);  
    if (GRANTED == PackageManager.PERMISSION_DENIED) {  
      console.log('没开启定位权限');  
    } else {  
      console.log('启定位权限');  
    }  
  } else {  
    GRANTED = plus.android.invoke(packageManager, 'checkPermission', isCheck, pkName);  
    alert(GRANTED);  
    if (GRANTED == PackageManager.PERMISSION_DENIED) {  
      console.log('没开启定位权限');  
    } else {  
      console.log('启定位权限');  
    }  
  }  
}

android代码