public IToast ShowAsync(object content, float duration, ToastPosition position = ToastPosition.Bottom,
IDataContext context = null)
{
var toast = new ToastWrapper(new TaskCompletionSource <object>(), _threadManager);
if (_threadManager.IsUiThread)
{
ShowInternal(content, duration, position, context, toast);
}
else
{
_threadManager.InvokeOnUiThreadAsync(() => ShowInternal(content, duration, position, context, toast),
OperationPriority.High);
}
return(toast);
}
/// <summary>
/// Shows the specified message.
/// </summary>
protected virtual void ShowInternal(object content, float duration, ToastPosition position, IDataContext context,
TaskCompletionSource <object> tcs)
{
#if XAMARIN_FORMS
var ctx = Xamarin.Forms.Forms.Context;
#else
var ctx = _navigationProvider.CurrentContent as Context;
#endif
if (ctx == null)
{
tcs.SetResult(null);
return;
}
View view = GetView(content, ctx);
Toast toast = view == null
? Toast.MakeText(ctx, content == null? "(null)" : content.ToString(), ToastLength.Long)
: new Toast(ctx)
{
View = view
};
var wrapper = new ToastWrapper(toast, tcs, _threadManager);
ServiceProvider
.AttachedValueProvider
.AddOrUpdate(ctx, ToastWrapperMember, (c, o) =>
{
wrapper.Show(duration, position);
return(wrapper);
}, (item, value, oldValue, state) =>
{
oldValue.Complete();
return(value(item, state));
});
#if !XAMARIN_FORMS
var activityView = ctx as IActivityView;
if (activityView == null)
{
return;
}
ServiceProvider.AttachedValueProvider.GetOrAdd(activityView, DisposedEventHandler, (view1, o) =>
{
view1.Destroyed += ActivityOnDestroyed;
return(DisposedEventHandler);
}, null);
#endif
}
protected virtual void ShowInternal(object content, float duration, ToastPosition position, IDataContext context, ToastWrapper wrapper)
{
#if XAMARIN_FORMS
var ctx = XamarinFormsAndroidToolkitExtensions.GetCurrentContext();
#else
var ctx = AndroidToolkitExtensions.CurrentActivity;
#endif
if (ctx == null)
{
wrapper.Cancel();
return;
}
Toast toast = null;
#if !XAMARIN_FORMS
var selector = ctx.GetBindingMemberValue(AttachedMembers.Activity.ToastTemplateSelector);
if (selector != null)
{
toast = (Toast)selector.SelectTemplate(content, ctx);
}
#endif
if (toast == null)
{
View view = GetView(content, ctx);
toast = view == null
? Toast.MakeText(ctx, content?.ToString() ?? "(null)", ToastLength.Long)
: new Toast(ctx)
{
View = view
};
}
ServiceProvider
.AttachedValueProvider
.AddOrUpdate(ctx, ToastWrapperMember, (c, o) =>
{
wrapper.Show(toast, duration, position);
return(wrapper);
}, (item, value, oldValue, state) =>
{
oldValue.Close();
return(value(item, state));
});
}
protected virtual void ShowInternal(object content, float duration, ToastPosition position, IDataContext context, ToastWrapper wrapper)
{
#if XAMARIN_FORMS
var ctx = global::Xamarin.Forms.Forms.Context;
#else
var ctx = PlatformExtensions.CurrentActivity;
#endif
if (ctx == null)
{
wrapper.Cancel();
return;
}
Toast toast = null;
#if !XAMARIN_FORMS
var selector = ctx.GetBindingMemberValue(AttachedMembers.Activity.ToastTemplateSelector);
if (selector != null)
toast = (Toast)selector.SelectTemplate(content, ctx);
#endif
if (toast == null)
{
View view = GetView(content, ctx);
toast = view == null
? Toast.MakeText(ctx, content?.ToString() ?? "(null)", ToastLength.Long)
: new Toast(ctx) { View = view };
}
ServiceProvider
.AttachedValueProvider
.AddOrUpdate(ctx, ToastWrapperMember, (c, o) =>
{
wrapper.Show(toast, duration, position);
return wrapper;
}, (item, value, oldValue, state) =>
{
oldValue.Close();
return value(item, state);
});
}
public IToast ShowAsync(object content, float duration, ToastPosition position = ToastPosition.Bottom,
IDataContext context = null)
{
var toast = new ToastWrapper(new TaskCompletionSource<object>(), _threadManager);
if (_threadManager.IsUiThread)
ShowInternal(content, duration, position, context, toast);
else
_threadManager.InvokeOnUiThreadAsync(() => ShowInternal(content, duration, position, context, toast),
OperationPriority.High);
return toast;
}
/// <summary>
/// Shows the specified message.
/// </summary>
protected virtual void ShowInternal(object content, float duration, ToastPosition position, IDataContext context,
TaskCompletionSource<object> tcs)
{
#if XAMARIN_FORMS
var ctx = global::Xamarin.Forms.Forms.Context;
#else
var ctx = _navigationProvider.CurrentContent as Context;
#endif
if (ctx == null)
{
tcs.SetResult(null);
return;
}
View view = GetView(content, ctx);
Toast toast = view == null
? Toast.MakeText(ctx, content == null ? "(null)" : content.ToString(), ToastLength.Long)
: new Toast(ctx) { View = view };
var wrapper = new ToastWrapper(toast, tcs, _threadManager);
ServiceProvider
.AttachedValueProvider
.AddOrUpdate(ctx, ToastWrapperMember, (c, o) =>
{
wrapper.Show(duration, position);
return wrapper;
}, (item, value, oldValue, state) =>
{
oldValue.Complete();
return value(item, state);
});
#if !XAMARIN_FORMS
var activityView = ctx as IActivityView;
if (activityView == null)
return;
ServiceProvider.AttachedValueProvider.GetOrAdd(activityView, DisposedEventHandler, (v, o) =>
{
v.Mediator.Destroyed += ActivityOnDestroyedDelegate;
return DisposedEventHandler;
}, null);
#endif
}
static public void Show(string inMessage, TOAST_DURATION inDuration = TOAST_DURATION.LENGTH_SHORT)
{
ToastWrapper wrapper = new ToastWrapper(inMessage, inDuration);
AndroidHelper.RunOnUIThread(wrapper.ShowAndDispose);
}
