在运行时请求位置权限

我有一个查询，为Location实现了RuntimePermission.当我尝试requestLocationUpdates时，我得到了LintError提示我为该行添加PermissionCheck.考虑到我实现了运行时权限.这就是它的样子，

I have a query implementing RuntimePermission for Location. When I tried to requestLocationUpdates, I got LintError suggesting me to add PermissionCheck for that line. Considering that I implemented run-time permissions. So this is how it looks,

if (isNetworkEnabled() && networkListener != null) {
        if (ActivityCompat.checkSelfPermission(context,
                Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
                ActivityCompat.checkSelfPermission(context,
                        Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {

            ActivityCompat.requestPermissions(activity, new String[]
                    {Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.ACCESS_FINE_LOCATION}, REQUEST_LOCATION);

        } else
            mLocationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, networkListener);
}

我的主类实现了onRequestPermissionsResult回调.看起来像

And my main class implements onRequestPermissionsResult callback. This looks like,

switch (requestCode) {
        case REQUEST_LOCATION:
                if (grantResults.length == 2 && grantResults[0] == PackageManager.PERMISSION_GRANTED
                        && grantResults[1] == PackageManager.PERMISSION_GRANTED) {
                        mLocationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, networkListener);
                } else
                    Message.displayToast(context, "Without enabling permission, you can't access this feature");
            break;
    }

在授予权限后，我再次请求位置更新.但是它再次显示LintError添加PermissionCheck.请参考下图

After the permission is granted, I request location updates again. But it again shows LintError to add the PermissionCheck. Refer the below image

在onRequestPermissionsResult中请求requestLocationUpdate之前，尝试尝试checkSelfPermission，错误消失了.像下面的代码.

Just for try I checkSelfPermission before requesting for requestLocationUpdate inside onRequestPermissionsResult and the error is gone. Like below code.

if (ActivityCompat.checkSelfPermission(context, permissions[0]) == PackageManager.PERMISSION_GRANTED &&
                            ActivityCompat.checkSelfPermission(context, permissions[1]) == PackageManager.PERMISSION_GRANTED)

所以，我的问题是，如果用户授予了权限，是否需要再次检查权限?如果我错了，请纠正我！

So, my question is do I need to check the permission once again if the user granted the permission? Correct me if I'm wrong!