Progress Button for Xamarin.Android - Ported from this library

Article on ProAndroidDev.com explaining how it works (in kotlin): here

Add progress animation to any button by adding a few lines of code without layout changes

Main features:

• No layout changes required
• Few lines of code to add
• Easily configurable
• Customizable
• Built in fade animations

NuGet package

Install-Package Ir.XamarinDev.Android.ProgressButton

How to use

Basic example

protected override void OnCreate(Bundle savedInstanceState) {
    base.OnCreate(savedInstanceState);
    SetContentView(Resource.Layout.activity_main);
    
    var myButton = FindViewById<MaterialButton>(Resource.Id.myButton);
    
    // bind your button to activity lifecycle
    this.BindProgressButton(myButton);

    // (Optional) Enable fade in/out animations 
    myButton.AttachTextChangeAnimator();

    // Show progress with "Loading" text
    myButton.ShowProgress((progressParams) => {
        progressParams.ButtonTextRes = Resource.String.loading;
        progressParams.ProgressColor = Color.White;
    });

    // Hide progress and show "Submit" text instead
    myButton.HideProgress(Resource.String.submit);
}

Showing AnimatedDrawable

var animatedDrawable = ContextCompat.GetDrawable(this, Resource.Drawable.animated_check);
// Defined bounds are required for your drawable  
animatedDrawable.Bounds = new Rect(0, 0, 40, 40);
  
button.ShowDrawable(animatedDrawable, (drawableParams) => {
    buttonTextRes = Resource.String.saved;
});

Detailed doc: here

Avoiding memory leaks

To avoid memory leaks you always need to bind your button to a LifecycleOwner (usually Activity, or Fragment):

[ILifecycleOwner].BindProgressButton(button);

License

GPL v3.0

Author

XamarinDev

Credits

Anton Hadutski - GitHub