Show ProgressBar programattically while user logging on - xamarin.android

Question

I found this class at Centering ProgressBar Programmatically in Android which would display a progressbar programmatically, problem is it's an Xamarin Android Studio example and I'm trying to convert it to Xamarin for Visual Studio 2017. This is the code that I have successfully converted with those lines that I can't seem to find a Xamarin VS 2017 equivalent for.
using System.Text;
using Android.App;
using Android.Content;
using Android.OS;
using Android.Runtime;
using Android.Views;
using Android.Widget;
namespace OML_Android
{
class ProgressBarHandler
{
private ProgressBar mProgressBar;
private Context mContext;
public ProgressBarHandler(Context context)
{
mContext = context;
ViewGroup layout = (ViewGroup)((Activity)context).FindViewById(Android.Resource.Id.Content).RootView;
mProgressBar = new ProgressBar(context, null, Android.Resource.Attribute.ProgressBarStyleLarge);
// there is no setIndeterminate method for progressbar
mProgressBar.setIndeterminate(true);
// I cannot find an equivilent for LayoutParams
RelativeLayout.LayoutParams params = RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MatchParent, RelativeLayout.LayoutParams.MatchParent);
RelativeLayout rl = new RelativeLayout(context);
// No equivalent for Gravity.CENTER
rl.SetGravity(Gravity.CENTER);
rl.AddView(mProgressBar);
layout.AddView(rl, params);
hide();
}
public void show()
{
mProgressBar.Visibility = Android.Views.ViewStates.Visible;
}
public void hide()
{
mProgressBar.Visibility = Android.Views.ViewStates.Invisible;
}
}
}
Once I have this converted and working I want it to overlay my logon view until the view finishes processing.

Answer 1

I help you transform Java code to C#, there is running GIF.
There is code.
class ProgressBarHandler
{
private ProgressBar mProgressBar;
private Context mContext;
public ProgressBarHandler(Context context)
{
mContext = context;
ViewGroup layout = (ViewGroup)((Activity)context).FindViewById(Android.Resource.Id.Content).RootView;
mProgressBar = new ProgressBar(context, null, Android.Resource.Attribute.ProgressBarStyleLarge);
// there is no setIndeterminate method for progressbar
// mProgressBar.SetIndeterminate(true);
mProgressBar.Indeterminate = true;
// I cannot find an equivilent for LayoutParams
RelativeLayout.LayoutParams layoutparams = new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MatchParent, RelativeLayout.LayoutParams.MatchParent);
RelativeLayout rl = new RelativeLayout(context);
// No equivalent for Gravity.CENTER
rl.SetGravity(GravityFlags.Center );
rl.AddView(mProgressBar);
layout.AddView(rl, layoutparams);
hide();
}
public void show()
{
mProgressBar.Visibility = Android.Views.ViewStates.Visible;
}
public void hide()
{
mProgressBar.Visibility = Android.Views.ViewStates.Invisible;
}
}
You can use it directly like following code in Activity.
var progress= new ProgressBarHandler(this);
progress.show();