protected override void OnAttached()
{
base.OnAttached();
NativeButton = Control as AppCompatButton;
if (NativeButton == null)
{
return;
}
FormsButton = Element as Button;
OrgBackground = NativeButton.Background;
OrgStateListAnimator = NativeButton.StateListAnimator;
//shadow off
NativeButton.StateListAnimator = null;
Shape = new GradientDrawable();
Shape.SetShape(ShapeType.Rectangle);
UpdateBackgroundColor();
UpdateBorderRadius();
UpdateBorder();
UpdateRippleColor();
NativeButton.Background = Ripple;
}
protected override void OnDetached()
{
if (!IsDisposed)
{
NativeButton.Background = OrgBackground;
NativeButton.StateListAnimator = OrgStateListAnimator;
System.Diagnostics.Debug.WriteLine($"{this.GetType().FullName} Detached Disposing");
}
Colors.Dispose();
Shape.Dispose();
Inset.Dispose();
Ripple.Dispose();
FormsButton = null;
NativeButton = null;
OrgBackground = null;
OrgStateListAnimator = null;
Colors = null;
Shape = null;
Ripple = null;
Inset = null;
System.Diagnostics.Debug.WriteLine($"{this.GetType().FullName} Detached completely");
base.OnDetached();
}
protected override void OnDetached()
{
var renderer = Container as IVisualElementRenderer;
if (renderer?.Element != null)
{
NativeButton.Background = OrgBackground;
NativeButton.StateListAnimator = OrgStateListAnimator;
NativeButton.SupportBackgroundTintList = OrgBackgroundTint;
}
Colors.Dispose();
Shape.Dispose();
Inset.Dispose();
Ripple.Dispose();
FormsButton = null;
NativeButton = null;
OrgBackground = null;
OrgStateListAnimator = null;
OrgBackgroundTint = null;
Colors = null;
Shape = null;
Ripple = null;
Inset = null;
}
private StateListAnimator CreateStateListAnimator()
{
if (_button.ButtonType != MaterialButtonType.Elevated || !_aView.Enabled)
{
return(null);
}
var stateListAnimator = new StateListAnimator();
var objAnimTransZEnabled = ObjectAnimator.OfFloat(_aView, "translationZ", MaterialHelper.ConvertToDp(_button.Elevation.RestingElevation))
.SetDuration(100);
objAnimTransZEnabled.StartDelay = 100;
var objAnimElevationEnabled = ObjectAnimator.OfFloat(_aView, "elevation", MaterialHelper.ConvertToDp(_button.Elevation.RestingElevation))
.SetDuration(0);
var objAnimTransZPressed = ObjectAnimator.OfFloat(_aView, "translationZ", MaterialHelper.ConvertToDp(_button.Elevation.PressedElevation))
.SetDuration(100);
var objAnimElevationPressed = ObjectAnimator.OfFloat(_aView, "elevation", MaterialHelper.ConvertToDp(_button.Elevation.RestingElevation))
.SetDuration(0);
var b = new AnimatorSet();
b.PlayTogether(objAnimTransZEnabled, objAnimElevationEnabled);
b.SetTarget(_aView);
var bb = new AnimatorSet();
bb.PlayTogether(objAnimTransZPressed, objAnimElevationPressed);
bb.SetTarget(_aView);
stateListAnimator.AddState(new[] { R.Attribute.StatePressed }, bb);
stateListAnimator.AddState(new[] { R.Attribute.StateFocused, R.Attribute.StateEnabled }, bb);
stateListAnimator.AddState(new[] { R.Attribute.StateEnabled }, b);
stateListAnimator.AddState(new[] { R.Attribute.StateFocused }, bb);
if (!(_aView is AppCompatImageButton))
{
return(stateListAnimator);
}
_aView.OutlineProvider = new MaterialOutlineProvider(_button.CornerRadius);
_aView.ClipToOutline = false;
return(stateListAnimator);
}
protected override void OnDetached()
{
if (!IsDisposed)
{
NativeButton.Background = OrgBackground;
NativeButton.StateListAnimator = OrgStateListAnimator;
}
Colors.Dispose();
Shape.Dispose();
Inset.Dispose();
Ripple.Dispose();
FormsButton = null;
NativeButton = null;
OrgBackground = null;
OrgStateListAnimator = null;
Colors = null;
Shape = null;
Ripple = null;
Inset = null;
}
private void UpdateElevation()
{
if (!Material.IsLollipop)
{
return;
}
StateListAnimator stateListAnimator = null;
if (_button.ButtonType == MaterialButtonType.Elevated && _aView.Enabled)
{
stateListAnimator = AnimatorInflater.LoadStateListAnimator(_aView.Context, Resource.Animator.material_button_state_list_anim);
if (_aView is AppCompatImageButton)
{
_aView.OutlineProvider = new MaterialOutlineProvider(_button.CornerRadius);
_aView.ClipToOutline = false;
}
}
_aView.StateListAnimator = stateListAnimator;
}
protected override void OnAttached()
{
_originalStateListAnimator = Control.StateListAnimator;
Control.StateListAnimator = null;
}
