protected override void OnElementChanged(ElementChangedEventArgs <Xamarin.Forms.Page> e)
{
base.OnElementChanged(e);
if (e.OldElement != null || Element == null)
{
return;
}
var layout = new Android.Widget.LinearLayout(this.Context);
layout.SetBackgroundColor(Android.Graphics.Color.Black);
layout.LayoutParameters = new LayoutParams(LayoutParams.MatchParent, LayoutParams.MatchParent);
VideoView mVideoView = new VideoView(Context);
mVideoView.SetVideoPath("android.resource://" + this.Context.PackageName + "/" + Resource.Drawable.IntroGladys);
layout.SetVerticalGravity(GravityFlags.Center);
layout.SetHorizontalGravity(GravityFlags.Center);
mVideoView.LayoutParameters = new LayoutParams(LayoutParams.FillParent, LayoutParams.FillParent);
layout.AddView(mVideoView);
mVideoView.Start();
_view = layout;
AddView(_view);
}
void SetArrows()
{
if (Element.ShowArrows)
{
if (prevBtn == null)
{
prevBtn = nativeView.FindViewById <AWidget.LinearLayout>(Resource.Id.prev);
prevBtn.SetBackgroundColor(Element.ArrowsBackgroundColor.ToAndroid());
prevBtn.Visibility = Element.Position == 0 ? AViews.ViewStates.Gone : AViews.ViewStates.Visible;
prevBtn.Alpha = Element.ArrowsTransparency;
var prevArrow = nativeView.FindViewById <AWidget.ImageView>(Resource.Id.prevArrow);
prevArrow.SetColorFilter(Element.ArrowsTintColor.ToAndroid());
prevBtn.Click += delegate
{
if (Element.Position > 0)
{
Element.Position = Element.Position - 1;
}
};
}
if (nextBtn == null)
{
nextBtn = nativeView.FindViewById <AWidget.LinearLayout>(Resource.Id.next);
nextBtn.SetBackgroundColor(Element.ArrowsBackgroundColor.ToAndroid());
nextBtn.Visibility = Element.Position == Element.ItemsSource.GetCount() - 1 ? AViews.ViewStates.Gone : AViews.ViewStates.Visible;
nextBtn.Alpha = Element.ArrowsTransparency;
var nextArrow = nativeView.FindViewById <AWidget.ImageView>(Resource.Id.nextArrow);
nextArrow.SetColorFilter(Element.ArrowsTintColor.ToAndroid());
nextBtn.Click += delegate
{
if (Element.Position < Element.ItemsSource.GetCount() - 1)
{
Element.Position = Element.Position + 1;
}
};
}
}
else
{
if (prevBtn != null)
{
prevBtn.Visibility = AViews.ViewStates.Gone;
}
if (nextBtn != null)
{
nextBtn.Visibility = AViews.ViewStates.Gone;
}
}
}
void SetArrows()
{
if (Element.ShowArrows)
{
if (prevBtn == null)
{
prevBtn = nativeView.FindViewById <AWidget.LinearLayout>(Resource.Id.prev);
prevBtn.SetBackgroundColor(Element.ArrowsBackgroundColor.ToAndroid());
prevBtn.Visibility = Element.Position == 0 || Element.ItemsSource.GetCount() == 0 ? AViews.ViewStates.Gone : AViews.ViewStates.Visible;
prevBtn.Alpha = Element.ArrowsTransparency;
prevBtn.SetMinimumWidth((int)Element.ArrowsWidth);
prevBtn.SetMinimumHeight((int)Element.ArrowsHeight);
var prevArrow = nativeView.FindViewById <AWidget.ImageView>(Resource.Id.prevArrow);
prevArrow.SetColorFilter(Element.ArrowsTintColor.ToAndroid());
prevBtn.Click += PrevBtn_Click;
}
if (nextBtn == null)
{
nextBtn = nativeView.FindViewById <AWidget.LinearLayout>(Resource.Id.next);
nextBtn.SetBackgroundColor(Element.ArrowsBackgroundColor.ToAndroid());
nextBtn.Visibility = Element.Position == Element.ItemsSource.GetCount() - 1 || Element.ItemsSource.GetCount() == 0 ? AViews.ViewStates.Gone : AViews.ViewStates.Visible;
nextBtn.Alpha = Element.ArrowsTransparency;
var nextArrow = nativeView.FindViewById <AWidget.ImageView>(Resource.Id.nextArrow);
nextArrow.SetColorFilter(Element.ArrowsTintColor.ToAndroid());
nextBtn.Click += NextBtn_Click;
}
}
else
{
if (prevBtn == null || nextBtn == null)
{
return;
}
prevBtn.Visibility = AViews.ViewStates.Gone;
nextBtn.Visibility = AViews.ViewStates.Gone;
}
}
protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
{
base.OnElementPropertyChanged(sender, e);
if (Element == null || viewPager == null)
{
return;
}
var rect = this.Element.Bounds;
switch (e.PropertyName)
{
case "Orientation":
orientationChanged = true;
SetNativeView();
Element.SendPositionSelected();
Element.PositionSelectedCommand?.Execute(null);
break;
case "BackgroundColor":
viewPager.SetBackgroundColor(Element.BackgroundColor.ToAndroid());
break;
case "IsSwipeEnabled":
SetIsSwipeEnabled();
break;
case "IndicatorsTintColor":
indicators?.SetFillColor(Element.IndicatorsTintColor.ToAndroid());
break;
case "CurrentPageIndicatorTintColor":
indicators?.SetPageColor(Element.CurrentPageIndicatorTintColor.ToAndroid());
break;
case "IndicatorsShape":
indicators?.SetStyle((int)Element.IndicatorsShape);
break;
case "ShowIndicators":
SetIndicators();
break;
case "ItemsSource":
SetPosition();
viewPager.Adapter = new PageAdapter(Element);
viewPager.SetCurrentItem(Element.Position, false);
SetArrowsVisibility();
indicators?.SetViewPager(viewPager);
Element.SendPositionSelected();
Element.PositionSelectedCommand?.Execute(null);
if (Element.ItemsSource != null && Element.ItemsSource is INotifyCollectionChanged)
{
((INotifyCollectionChanged)Element.ItemsSource).CollectionChanged += ItemsSource_CollectionChanged;
}
break;
case "ItemTemplate":
viewPager.Adapter = new PageAdapter(Element);
viewPager.SetCurrentItem(Element.Position, false);
indicators?.SetViewPager(viewPager);
Element.SendPositionSelected();
Element.PositionSelectedCommand?.Execute(null);
break;
case "Position":
if (!isChangingPosition)
{
SetCurrentPage(Element.Position);
}
break;
case "ShowArrows":
SetArrows();
break;
case "ArrowsBackgroundColor":
if (prevBtn == null || nextBtn == null)
{
return;
}
prevBtn.SetBackgroundColor(Element.ArrowsBackgroundColor.ToAndroid());
nextBtn.SetBackgroundColor(Element.ArrowsBackgroundColor.ToAndroid());
break;
case "ArrowsTintColor":
var prevArrow = nativeView.FindViewById <AWidget.ImageView>(Resource.Id.prevArrow);
prevArrow.SetColorFilter(Element.ArrowsTintColor.ToAndroid());
var nextArrow = nativeView.FindViewById <AWidget.ImageView>(Resource.Id.nextArrow);
nextArrow.SetColorFilter(Element.ArrowsTintColor.ToAndroid());
break;
case "ArrowsTransparency":
if (prevBtn == null || nextBtn == null)
{
return;
}
prevBtn.Alpha = Element.ArrowsTransparency;
nextBtn.Alpha = Element.ArrowsTransparency;
break;
}
}
protected override void OnElementPropertyChanged(object sender, PropertyChangedEventArgs e)
{
base.OnElementPropertyChanged(sender, e);
var rect = this.Element.Bounds;
switch (e.PropertyName)
{
case "Orientation":
if (Element != null)
{
orientationChanged = true;
SetNativeView();
Element.SendPositionSelected();
Element.PositionSelectedCommand?.Execute(null);
}
break;
case "InterPageSpacing":
//var metrics = Resources.DisplayMetrics;
//var interPageSpacing = Element.InterPageSpacing * metrics.Density;
//viewPager.PageMargin = (int)interPageSpacing;
break;
case "BackgroundColor":
viewPager?.SetBackgroundColor(Element.BackgroundColor.ToAndroid());
break;
case "IsSwipingEnabled":
SetIsSwipingEnabled();
break;
case "IndicatorsTintColor":
indicators?.SetFillColor(Element.IndicatorsTintColor.ToAndroid());
break;
case "CurrentPageIndicatorTintColor":
indicators?.SetPageColor(Element.CurrentPageIndicatorTintColor.ToAndroid());
break;
case "IndicatorsShape":
indicators?.SetStyle(Element.IndicatorsShape);
break;
case "ShowIndicators":
SetIndicators();
break;
case "ItemsSource":
if (Element != null && viewPager != null)
{
SetPosition();
viewPager.Adapter = new PageAdapter(Element);
viewPager.SetCurrentItem(Element.Position, false);
indicators?.SetViewPager(viewPager);
Element.SendPositionSelected();
Element.PositionSelectedCommand?.Execute(null);
if (Element.ItemsSource != null && Element.ItemsSource is INotifyCollectionChanged)
{
((INotifyCollectionChanged)Element.ItemsSource).CollectionChanged += ItemsSource_CollectionChanged;
}
}
break;
case "ItemTemplate":
if (Element != null && viewPager != null)
{
viewPager.Adapter = new PageAdapter(Element);
viewPager.SetCurrentItem(Element.Position, false);
indicators?.SetViewPager(viewPager);
Element.SendPositionSelected();
Element.PositionSelectedCommand?.Execute(null);
}
break;
case "Position":
if (Element != null && !isSwiping)
{
SetCurrentPage(Element.Position);
}
break;
case "ShowArrows":
SetArrows();
break;
case "ArrowsBackgroundColor":
if (prevBtn != null && nextBtn != null)
{
prevBtn.SetBackgroundColor(Element.ArrowsBackgroundColor.ToAndroid());
nextBtn.SetBackgroundColor(Element.ArrowsBackgroundColor.ToAndroid());
}
break;
case "ArrowsTintColor":
if (prevBtn != null && nextBtn != null)
{
var prevArrow = nativeView.FindViewById <AWidget.ImageView>(Resource.Id.prevArrow);
prevArrow.SetColorFilter(Element.ArrowsTintColor.ToAndroid());
var nextArrow = nativeView.FindViewById <AWidget.ImageView>(Resource.Id.nextArrow);
nextArrow.SetColorFilter(Element.ArrowsTintColor.ToAndroid());
}
break;
}
}