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How to render images within the application in carousel in different platforms
2 mins read
In Carousel, images take a major role. In Carousel needs to be able to share images across all platforms. These carousel’s images need to be configured based on the platform basis. Source of carousel’s images from any one of the following types
- Loading from file - Requires while filepath that can be resolved on each platform. (For Example: “/storage/emulated/0/Pictures/download1.JPG”)
C#
public partial class KBSolutionPage : ContentPage
{
public KBSolutionPage()
{
InitializeComponent();
SfCarousel sfCarousel = new SfCarousel();
if (Device.OS == TargetPlatform.Android)
{
sfCarousel.ItemWidth = 170;
sfCarousel.ItemHeight = 250;
}
if (Device.OS == TargetPlatform.iOS)
{
sfCarousel.ItemWidth = 150;
sfCarousel.ItemHeight = 300;
}
var carouselModel = new List<CarouselModel> {
new CarouselModel(“/storage/emulated/0/Pictures/download1.JPG" ),
new CarouselModel(“/storage/emulated/0/Pictures/download2.JPG" ),
new CarouselModel(“/storage/emulated/0/Pictures/download3.JPG" ),
new CarouselModel(“/storage/emulated/0/Pictures/download4.JPG")
};
var carouselModelDataTemplate = new DataTemplate(() =>
{
var grid = new Grid();
var nameLabel = new Image();
nameLabel.SetBinding(Image.SourceProperty, "Image");
grid.Children.Add(nameLabel);
return grid;
});
sfCarousel.ItemTemplate = carouselModelDataTemplate;
sfCarousel.DataSource = carouselModel;
this.Content = sfCarousel;
}
}
public class CarouselModel
{
public CarouselModel(string imagestr)
{
Image = imagestr;
}
private string _image;
public string Image
{
get { return _image; }
set { _image = value; }
}
}
- Loading from URL images – Requires Url link (For Example: https://www.xamarin.com/content/images/pages/branding/assets/xamagon.png )
C#
public partial class KBSolutionPage : ContentPage
{
public KBSolutionPage()
{
InitializeComponent();
SfCarousel sfCarousel = new SfCarousel();
if (Device.OS == TargetPlatform.Android)
{
sfCarousel.ItemWidth = 170;
sfCarousel.ItemHeight = 250;
}
if (Device.OS == TargetPlatform.iOS)
{
sfCarousel.ItemWidth = 150;
sfCarousel.ItemHeight = 300;
}
var carouselModel = new List<CarouselModel> {
new CarouselModel ("https://cdn.syncfusion.com/content/images/Images/Camtasia_Succinctly.png?v=22022017060923"),
new CarouselModel ("https://cdn.syncfusion.com/content/images/Images/SQL_Queries_Succinctly.png?v=04022017014551"),
new CarouselModel ("https://cdn.syncfusion.com/content/images/Images/Keystonejs_Succinctly.png?v=22022017060923"),
new CarouselModel ("https://cdn.syncfusion.com/content/images/Images/sql_server_for_c_sharp_developers_succinctly_cover_img.png?v=22022017060923"),
new CarouselModel ("https://cdn.syncfusion.com/content/images/downloads/ebooks/SciPy_Programming_Succinctly_img.png?v=22022017060923")
};
var carouselModelDataTemplate = new DataTemplate(() =>
{
var grid = new Grid();
var nameLabel = new Image();
nameLabel.SetBinding(Image.SourceProperty, "Image");
grid.Children.Add(nameLabel);
return grid;
});
sfCarousel.ItemTemplate = carouselModelDataTemplate;
sfCarousel.DataSource = carouselModel;
this.Content = sfCarousel;
}
}
public class CarouselModel
{
public CarouselModel(string imagestr)
{
Image = imagestr;
}
private string _image;
public string Image
{
get { return _image; }
set { _image = value; }
}
}
- Loading local images – Requires a resource identifier to an image file
C#
public partial class KBSolutionPage : ContentPage
{
public KBSolutionPage()
{
InitializeComponent();
SfCarousel sfCarousel = new SfCarousel();
sfCarousel.ItemWidth = 170;
sfCarousel.ItemHeight = 250;
var carouselModel = new List<CarouselModel> {
new CarouselModel ("image1.png"),
new CarouselModel ("image2.png"),
new CarouselModel ("image3.png"),
new CarouselModel ("image4.png"),
new CarouselModel ("image5.png")
};
var carouselModel DataTemplate = new DataTemplate(() =>
{
var grid = new Grid();
var nameLabel = new Image();
nameLabel.SetBinding(Image.SourceProperty, "Image");
grid.Children.Add(nameLabel);
return grid;
});
sfCarousel.ItemTemplate = carouselModel DataTemplate;
sfCarousel.DataSource = carouselModel;
this.Content = sfCarousel;
}
}
public class CarouselModel
{
public CarouselModel(string imagestr)
{
Image = imagestr;
}
private string _image;
public string Image
{
get { return _image; }
set { _image = value; }
}
}
While accessing the images from local resource folder, need to ensure that their build action as per the platforms.
Platforms | Build Action |
PCL | Embedded Resource |
Android (Resource folder) | Android Resource |
iOS (Resource folder) | Bundle Resource |
UWP (Assets folder) | Content |
