find device orientation, not app orientation using xamarin forms - xamarin.forms

Question

I am using xamarin forms for my app. Bascially My app need portrait mode orientation. But When i click on the button on my page, I need to find whether my device is on portrait or landscape. But my app orientation is always showing portrait mode.
MainActivity.cs:
using System;
using Android.App;
using Android.Content.PM;
using Android.Runtime;
using Android.Views;
using Android.Widget;
using Android.OS;
using Android.Content;
using Xamarin.Forms;
using Plugin.CurrentActivity;
namespace App2.Droid
{
[Activity(Label = "App2", Icon = "#mipmap/icon", Theme = "#style/MainTheme", MainLauncher = true, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation)]
public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsAppCompatActivity
{
protected override void OnCreate(Bundle savedInstanceState)
{
TabLayoutResource = Resource.Layout.Tabbar;
ToolbarResource = Resource.Layout.Toolbar;
if (!isPad(this))
{
RequestedOrientation = ScreenOrientation.Portrait;
}
else
{
RequestedOrientation = ScreenOrientation.Portrait;
}
CrossCurrentActivity.Current.Activity = this;
base.OnCreate(savedInstanceState);
Xamarin.Essentials.Platform.Init(this, savedInstanceState);
global::Xamarin.Forms.Forms.Init(this, savedInstanceState);
LoadApplication(new App());
}
public static bool isPad(Context context)
{
return (context.Resources.Configuration.ScreenLayout & Android.Content.Res.ScreenLayout.SizeMask) >= Android.Content.Res.ScreenLayout.SizeLarge;
}
public override void OnConfigurationChanged(Android.Content.Res.Configuration newConfig)
{
base.OnConfigurationChanged(newConfig);
switch (newConfig.Orientation)
{
case Android.Content.Res.Orientation.Portrait:
switch (Device.Idiom)
{
case TargetIdiom.Phone:
LockRotation(Orientation.Vertical);
break;
case TargetIdiom.Tablet:
LockRotation(Orientation.Horizontal);
break;
}
break;
case Android.Content.Res.Orientation.Landscape:
switch (Device.Idiom)
{
case TargetIdiom.Phone:
LockRotation(Orientation.Vertical);
break;
case TargetIdiom.Tablet:
LockRotation(Orientation.Horizontal);
break;
}
break;
}
}
private void LockRotation(Orientation orientation)
{
switch (orientation)
{
case Orientation.Vertical:
RequestedOrientation = ScreenOrientation.Portrait;
break;
case Orientation.Horizontal:
RequestedOrientation = ScreenOrientation.Landscape;
break;
}
}
}
}
TestPage.xaml.cs:
private void btnsubmit_Clicked(object sender, EventArgs e)
{
lblText.Text = CrossDeviceOrientation.Current.CurrentOrientation.ToString();
}
But it is showing always portrait(App Orientation). But I need device orientation.
Please help me to resolve this issue

Answer 1

You can use Xamarin.Essentials: Device Display Information to achieve it.
Here is my code, when device change the Orientation, will push a Alert to show the device Orientation.
public partial class MainPage : ContentPage
{
public MainPage()
{
InitializeComponent();
DeviceDisplay.MainDisplayInfoChanged += OnMainDisplayInfoChanged;
}
private void OnMainDisplayInfoChanged(object sender, DisplayInfoChangedEventArgs e)
{
// throw new NotImplementedException();
DisplayAlert("Info", e.DisplayInfo.Orientation.ToString() + " ", "OK");
}
}
Here is running GIF.