protected override void OnDisappearing()
{
UploadingViewModel viewModel = (UploadingViewModel)BindingContext;
if (viewModel.StopUploadCommand.CanExecute(null))
{
viewModel.StopUploadCommand.Execute(null);
}
base.OnDisappearing();
}
public UploadingPage()
{
Title = ApplicationResource.PageUploadingTitle;
BindingContext = new UploadingViewModel(Navigation);
animationView = new AnimationView();
animationView.SetBinding(AnimationView.IsPlayingProperty, new Binding("ShowAnimation"));
animationView.SetBinding(AnimationView.IsVisibleProperty, new Binding("ShowAnimation"));
animationView.SetBinding(AnimationView.AnimationProperty, new Binding("Animation"));
animationView.SetBinding(AnimationView.LoopProperty, new Binding("ShouldLoopAnimation"));
animationView.AutoPlay = true;
animationView.HeightRequest = animationView.WidthRequest = 200;
animationView.Play();
var heroImage = new Image();
heroImage.HeightRequest = heroImage.WidthRequest = 200;
heroImage.SetBinding(Image.SourceProperty, new Binding("HeroImage"));
heroImage.SizeChanged += HeroImage_SizeChanged;
var titleLabel = new Label()
{
WidthRequest = 300,
FontAttributes = FontAttributes.Bold,
TextColor = Color.Black,
HorizontalOptions = LayoutOptions.Center,
HorizontalTextAlignment = TextAlignment.Center
};
titleLabel.SetBinding(Label.TextProperty, new Binding("StatusTitle"));
var messageLabel = new Label()
{
WidthRequest = 300,
TextColor = Color.SlateGray,
HorizontalOptions = LayoutOptions.Center,
HorizontalTextAlignment = TextAlignment.Center
};
messageLabel.SetBinding(Label.TextProperty, new Binding("StatusMessage"));
var startButton = new Button()
{
HorizontalOptions = LayoutOptions.CenterAndExpand,
FontAttributes = FontAttributes.Bold,
WidthRequest = 180,
HeightRequest = 40,
CornerRadius = 20
};
startButton.SetBinding(Button.TextProperty, new Binding("UploadButtonText"));
startButton.SetBinding(Button.TextColorProperty, new Binding("UploadButtonTextColor"));
startButton.SetBinding(Button.BackgroundColorProperty, new Binding("UploadButtonColor"));
startButton.SetBinding(Button.CommandProperty, new Binding("StartUploadCommand"));
startButton.SetBinding(Button.IsEnabledProperty, new Binding("UploadButtonEnabled"));
startButton.SetBinding(Button.IsVisibleProperty, new Binding("UploadEnabled"));
AbsoluteLayout.SetLayoutBounds(startButton, new Rectangle(.5, 1, 180, 40));
AbsoluteLayout.SetLayoutFlags(startButton, AbsoluteLayoutFlags.PositionProportional);
uploadingLayout = new RelativeLayout();
uploadingLayout.Margin = new Thickness(40);
uploadingLayout.Children.Add(animationView,
Constraint.RelativeToParent((parent) =>
{
return((parent.Width * .5) - (heroImage.Width / 2));
}),
Constraint.RelativeToParent((parent) =>
{
return(parent.Height * .3 - (heroImage.Height / 2));
})
);
uploadingLayout.Children.Add(heroImage,
Constraint.RelativeToParent((parent) =>
{
return((parent.Width * .5) - (heroImage.Width / 2));
}),
Constraint.RelativeToParent((parent) =>
{
return(parent.Height * .3 - (heroImage.Height / 2));
})
);
uploadingLayout.Children.Add(startButton,
Constraint.RelativeToParent((parent) =>
{
return((parent.Width * .5) - (startButton.Width / 2));
}),
Constraint.RelativeToParent((parent) =>
{
return((parent.Height * .9) - startButton.Height);
})
);
uploadingLayout.Children.Add(messageLabel,
Constraint.RelativeToParent((parent) =>
{
return((parent.Width * .5) - (messageLabel.Width / 2));
}),
Constraint.RelativeToView(startButton, (parent, sibling) =>
{
return(startButton.Y - messageLabel.Height - 40);
})
);
uploadingLayout.Children.Add(titleLabel,
Constraint.RelativeToParent((parent) =>
{
return((parent.Width * .5) - (titleLabel.Width / 2));
}),
Constraint.RelativeToView(messageLabel, (parent, sibling) =>
{
return(messageLabel.Y - titleLabel.Height - 10);
})
);
Content = uploadingLayout;
}