protected override void OnAppearing()
{
base.OnAppearing();
if (String.IsNullOrEmpty(LogoFileImageSource))
{
throw new Exception("You must set the LogoFileImageSource property to specify the logo");
}
logo.Source = LogoFileImageSource;
List <Task> animationTaskList;
if (!isInitialized)
{
Device.BeginInvokeOnMainThread(async() =>
{
await Task.Delay(500);
await logo?.TranslateTo(0, -layout.Height * 0.3 - 10, 250);
await logo?.TranslateTo(0, -layout.Height * 0.3 + 5, 100);
await logo?.TranslateTo(0, -layout.Height * 0.3, 50);
await logo?.TranslateTo(0, -200 + 5, 100);
await logo?.TranslateTo(0, -200, 50);
var logoSloginAnimationTask = logoSlogan?.FadeTo(1, 5);
var newUserSignUpButtonAnimationTask = newUserSignUpButton?.FadeTo(1, 250);
var forgotPasswordButtonAnimationTask = forgotPasswordButton?.FadeTo(1, 250);
var loginEntryAnimationTask = loginEntry?.FadeTo(1, 250);
var passwordEntryAnimationTask = passwordEntry?.FadeTo(1, 250);
var saveUsernameAnimationTask = saveUsername?.FadeTo(1, 250);
var rememberMeAnimationTask = rememberMe?.FadeTo(1, 250);
var loginButtonAnimationTask = loginButton?.FadeTo(1, 249);
animationTaskList = new List <Task>
{
logoSloginAnimationTask,
newUserSignUpButtonAnimationTask,
forgotPasswordButtonAnimationTask,
loginEntryAnimationTask,
passwordEntryAnimationTask,
saveUsernameAnimationTask,
rememberMeAnimationTask,
loginButtonAnimationTask
};
await Task.WhenAll(animationTaskList);
isInitialized = true;
RunAfterAnimation();
});
}
}
private async Task AnimateLoginStart()
{
await Task.Run(() =>
{
LoginEntry.FadeTo(0, 500, Easing.Linear);
PasswordEntry.FadeTo(0, 500, Easing.Linear);
LoginButton.FadeTo(0, 500, Easing.Linear);
});
await LogoImage.TranslateTo(0, 50, 1000, Easing.Linear);
while ((BindingContext as LoginPageViewModel).Busy)
{
await LogoImage.FadeTo(1, 600);
await LogoImage.FadeTo(0, 600);
}
}
protected async override void OnAppearing()
{
base.OnAppearing();
logo.Source = LogoFileImageSource;
if (!isInitialized)
{
await Task.Delay(500);
await logo.TranslateTo(0, -(layout.Height - logo.Y), 250);
loginLabel.FadeTo(1, fadeTime);
newUserSignUpButton.FadeTo(1, fadeTime);
loginEntry.FadeTo(1, fadeTime);
passwordEntry.FadeTo(1, fadeTime);
await loginButton.FadeTo(1, fadeTime);
isInitialized = true;
RunAfterAnimation();
}
}
protected async override void OnAppearing()
{
base.OnAppearing();
if (String.IsNullOrEmpty(LogoFileImageSource))
{
throw new Exception("You must set the LogoFileImageSource property to specify the logo");
}
logo.Source = LogoFileImageSource;
if (!isInitialized)
{
await Task.Delay(500);
await logo.TranslateTo(0, -layout.Height * 0.3 - 10, 250);
await logo.TranslateTo(0, -layout.Height * 0.3 + 5, 100);
await logo.TranslateTo(0, -layout.Height * 0.3, 50);
await logo.TranslateTo(0, -200 + 5, 100);
await logo.TranslateTo(0, -200, 50);
newUserSignUpButton.FadeTo(1, 250);
forgotPasswordButton.FadeTo(1, 250);
loginEntry.FadeTo(1, 250);
passwordEntry.FadeTo(1, 250);
saveUsername.FadeTo(1, 250);
rememberMe.FadeTo(1, 250);
await loginButton.FadeTo(1, 249);
isInitialized = true;
RunAfterAnimation();
}
}