private static async Task DoAnimationByType(EAnimationType animationType, View obj, Easing easing, double scale)
{
LoginAnimationStackLayout stack = obj as LoginAnimationStackLayout;
if (stack == null)
{
return;
}
switch (animationType)
{
case EAnimationType.Translation:
await DoTranslation(stack, obj, easing);
break;
case EAnimationType.Scale:
await DoScale(stack, easing, scale);
break;
default:
stack.IsVisible = stack.Visible;
break;
}
}
private static async Task DoTranslation(LoginAnimationStackLayout stackLayout, View obj, Easing easing)
{
if (stackLayout.Visible)
{
stackLayout.IsVisible = true;
if (!yPosition.HasValue)
{
yPosition = obj.TranslationY;
}
await stackLayout.TranslateTo(obj.TranslationX, obj.TranslationY - 10, 10, easing);
await stackLayout.TranslateTo(obj.TranslationX, obj.TranslationY + 10, 900, easing);
}
else
{
if (!yPosition.HasValue)
{
yPosition = obj.TranslationY;
}
await stackLayout.TranslateTo(obj.TranslationX, obj.TranslationY, 10, easing);
await stackLayout.TranslateTo(obj.TranslationX, obj.TranslationY - 20, 900, easing);
obj.TranslationY = yPosition.Value;
stackLayout.IsVisible = false;
}
}
private static async Task DoScale(LoginAnimationStackLayout stackLayout, Easing easing, double scale)
{
if (stackLayout.Visible)
{
stackLayout.IsVisible = true;
await stackLayout.ScaleTo(scale, 250, easing);
await stackLayout.ScaleTo(1.00, 250, easing);
}
else
{
await stackLayout.ScaleTo(1.00, 250, easing);
await stackLayout.ScaleTo(scale, 250, easing);
stackLayout.IsVisible = false;
}
}
protected override void Init()
{
Title = "Issue 8503 [UWP] - text in Entry not visible until receiving focus";
ScrollView scrollView = new ScrollView();
StackLayout layout = new StackLayout {
Margin = new Thickness(20, 0)
};
layout.BindingContext = this;
Label isolatedHeader = new Label {
Text = "Isolated Bug", Margin = new Thickness(0, 20), FontSize = 18
};
Label isolatedInstructions = new Label
{
Text = "This is the bug isolated. To test:\n" +
"Click on the button below, to show Entry for Isolated Bug.\n" +
"An Entry appears.\n" +
"Check that the entry contains text 'This text should be visible, even before acquiring focus'.\n" +
"If it does, the issue is fixed.\n" +
"If it does not, check if the text appears if the entry receives focus.\n" +
"If it does, the bug is not fixed."
};
isolatedEntry = new Entry {
Text = "This text should be visible, even before acquiring focus", IsVisible = false
};
Button isolatedShowEntryButton = new Button {
Text = "Click to show Entry for Isolated Bug"
};
isolatedShowEntryButton.Clicked += IsolatedShowEntryButton_Clicked;
layout.Children.Add(isolatedHeader);
layout.Children.Add(isolatedInstructions);
layout.Children.Add(isolatedEntry);
layout.Children.Add(isolatedShowEntryButton);
Label issueHeader = new Label {
Text = "Reported Bug", Margin = new Thickness(0, 20), FontSize = 18
};
Label issueInstructions = new Label
{
Text = "This is the bug as reported with an example\n" +
"Click on the login-action button.\n" +
"An Entry for a UserName appears with a little translating animation.\n" +
"Check that the entry contains text 'user name goes here'.\n" +
"If it does, the issue is fixed.\n" +
"If it does not, check if the text appears if the entry receives focus.\n" +
"If it does, the bug is there."
};
LoginAnimateBehavior bugBehavior = new LoginAnimateBehavior
{
EasingType = EEasingType.SinInOut,
AnimationType = EAnimationType.Translation
};
StackLayout issueStackLayout = new StackLayout();
LoginAnimationStackLayout animatedStackLayout = new LoginAnimationStackLayout
{
IsVisible = false
};
animatedStackLayout.SetBinding(LoginAnimationStackLayout.VisibleProperty, nameof(IsUserNameEntryVisible));
animatedStackLayout.Behaviors.Add(bugBehavior);
Entry loginUserNameEntry = new Entry
{
IsEnabled = true
};
loginUserNameEntry.SetBinding(Entry.TextProperty, nameof(UserName));
Button loginButton = new Button
{
Text = "Login_Action",
WidthRequest = 150
};
loginButton.Clicked += LoginButton_Clicked;
animatedStackLayout.Children.Add(loginUserNameEntry);
issueStackLayout.Children.Add(animatedStackLayout);
issueStackLayout.Children.Add(loginButton);
layout.Children.Add(issueHeader);
layout.Children.Add(issueInstructions);
layout.Children.Add(issueStackLayout);
scrollView.Content = layout;
Content = scrollView;
}
