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Xamarin forms image import to new page

I want to import an camera/Gallary image into a page, not into the App() page, the function ShouldTakePicture() doesn't work, can anyone provide a sample code where I can import image to another page and display in a listview?
This import image was done form code in the link http://xforms-kickstarter.com/#camera
However when doing in another page, the MainActivity throws bellow error
Severity Code Description Project File Line Suppression State
Error CS1503 Argument 1: cannot convert from 'Gallary2.Injury' to 'Xamarin.Forms.Application' Gallary2.Droid C:\Users\haris\Documents\Visual Studio 2015\Projects\Gallary2\Gallary2\Gallary2.Droid\MainActivity.cs 32 Active
can anyone help me with image import demo project in Xamarin Forms? (Only c# please, we are not making changes in XAML )

It sounds like you created a new page and in that new page you created a ShouldTakePicture property of type Action. The reason that the code is now failing, is because of this line in the iOS and Android projects:
(Xamarin.Forms.Application.Current as App).ShouldTakePicture += () => {
That line is expecting the ShouldTakePicture property to be in your App class, but it has been moved to your new page.
To fix this, you could either move that property back into your App class and then reference it from your new page by calling Command = new Command(o => App.ShouldTakePicture()),.
A better way to fix this would be to use Xamarin's DependencyService, info about that is here. If you need help setting up the DependencyService, let me know.

Change Image at Runtime Based On RadioButton Selection

I need to change the background image at runtime, based on which RadioButton the user clicks. I'm doing this in a WPF project in Visual Studio, and I need to put the code in the Checked event in the xaml.cs file
I have an Image control called imgBackground, with 6 images in its Source collection, which are listed in an Images folder in the Solution Explorer.
I've tried:
this.imgBackground.Source = "filename.jpg";
both with and without the quotes, and with various paths (I've tried too many different variations to list them all here) and nothing works - everything I've tried just gives an error in the editor, before I even try to build and run anything (the error given varies depending on what I'm trying at the time).

If you are using relative paths as filenames like
this.imgBackground.Source = "filename.jpg";
then these files must be in the same directory as the .exe of your program is.
One workaround would be to use absolute paths like
this.imgBackground.Source = #"C:\MyFolder\MyProject\filename.jpg";
Or, even further use the packaging mechanism of WPF or pack your images as resources into your assembly. Look at this thread.
EDIT:
For your clarification:
The Source-property demands an System.Windows.Media.ImageSource-object, which you must provide.
Do it like this:
BitmapImage bi3 = new BitmapImage();
bi3.BeginInit();
bi3.UriSource = new Uri("filename.jpg", UriKind.Relative);
bi3.EndInit();
this.imgBackground.Source = bi3;
Please refer to this documentation here.

using resource dictionary as central collection of all images

i have a project with a lot of assemblies (> 100). many of those assemblies have subfolders like "images". many wpf-windows/user-controls for example have a "\images\close.png". that means that i have many "close.png" pictures instead of just a single one.
now i want to create a central place for all images/resources. what i did:
created a new class-libary/assembly called "a.b.c.d.e.Core.Resources"
added a resourcedictionary called "ImageDictionary.xaml"
created a subfolder "Images"
copied my images to this subfolder. for example "a.b.c.d.e.Core.Resources\images\close.png"
setting the built property of the image to "resource"
declared the image in the "ImageDictionary.xaml" like this "< ImageSource x:Key="Image_close">close.png< /ImageSource>"
using the dictionary in the wpf window where i want to use the "close.png" image like this
< Window.Resources>
< ResourceDictionary Source="pack://application:,,,/a.b.c.d.e.Core.Resources;component/Images/ImageDictionary.xaml"/>
< /Window.Resources >
trying to use the image declared in the central resource dictionary "ImageDictionary.xaml" like this < Button>< Image Source="{StaticResource Image_close}">< /Image>< /Button>
in the designer mode of VS the image is beeing displayed but when i start the project and open my wpf window i get an error like
"{"The File or Assembly \"a.b.c.d.e.Core.Resources, Culture=neutral\" or one of its dependencys can't be found. The system can't find the given file.":"a.b.c.d.c.e.Resources, Culture=neutral"} (i translated the error message from german to english :) )
Does anyone have any idea what i did wrong and why i can't get the central resourcedictionary getting to work properly? Thanks for any ideas!!!
Greetings from Germany
edit:
i also have a reference to "a.b.c.d.e.Core.Resources" in the assembly where my wpf window is
edit 2:
System.Windows.Markup.XamlParseException: Message=RowNumber "7" and RowPosition "10" of "Setting the Property "System.Windows.ResourceDictionary.Source" caused an exception".

Ok, the first idea I have is, that the file cannot be found because of the maximum path length limitation of the WinApi. I'm not sure about it, because I don't know anything about the internals of the resource loading mechanism.
Please try to start the program from a shorter path. Perhaps, it'll solve the problem.
EDIT
Just an idea, is your ImageDictionary.xaml declared as resource? If not, you should set its build step to "resource".
EDIT2
Next idea. Please empty the ImageDictionary.xaml by commenting out the elements. Uncomment the dictionary element by element. Perhaps, you'll find the reason for your problem, this way.

How do I cast an icon from a resource file to an image for use on a button?

I'm trying to use an icon that I've added as a resource as the image on a button. I know it's possible because I can do it in other projects through the designer. However, I'm trying to do this with code. I added the icon as a resource to my project by following the steps in the accepted answer to this question. The resource is named CancelButtonIcon.
Now, I'm trying to add that icon as the image on a standard button with this code:
this.CancelButton.Image = (System.Drawing.Image)Properties.Resources.CancelButtonIcon;
However, I get an error message:
Cannot convert type 'System.Drawing.Icon' to 'System.Drawing.Image'
In the code that Visual Studio automatically generates when I use the designer, it looks like this:
((System.Drawing.Image)(resources.GetObject("SaveButton.Image")));
which results from manually adding a resource through the Properties window. How can I convert this icon resource to an image so it can be used on the button? Adding it through the designer is not an option (this button is created programmatically and thus isn't present in the designer).

You can use the Icon.ToBitmap method for this purpose. Note that a Bitmap is an Image.
CancelButton.Image = Properties.Resources.CancelButtonIcon.ToBitmap();

Not sure why, but any time I tried using the accepted answer's approach, the .ToBitmap() call was giving me array index out of bounds exceptions. I solved this by doing it this way instead:
System.Drawing.Icon.FromHandle(Properties.Resources.CancelButtonIcon.Handle).ToBitmap();

Load Images in WPF application

I am not familiar with WPF, and I just feel quite confusing.
I am trying to create a little computer game, and there are elements I want to display dynamically. I use Image class and add the images to a canvas. But I'm not sure whether it's a good practice. I feel that adding controls to canvas seem to be a little wired. And I'm a little concerned about the performance, because I may need many images.
The real problem is, I can't load the images from the image files. I see an example in a text book like this (XMAL):
<Image Panel.ZIndex="0" Margin="0,0,0,0" Name ="image1">
<Image.Source>
<BitmapImage UriSource="Bell.gif" />
</Image.Source>
</Image>
Where Bell.gif is added into the project.
And I tried to copy this in code to create an image.
new Image { Source = new BitmapImage(new Uri("Blockade.bmp"))}
But I got invalid Uri exception. After some search in the Internet, I found that loading resources dynamically seems to be difficult. Can I load the files added to the project dynamically?
If I use absolute path then it's OK. But I can't expect every computer will put the files in the same location. Can I use relative path?
I tried
new Image { Source = new BitmapImage(new Uri(#"Pictures\Blank Land.bmp", UriKind.Relative)) }
But it doesn't work. (The image is blank)
Thanks.
I deleted the code. I just found the solution in "Pack URIs in WPF" in MSDN.
I can either use "pack://application:,,,/Blockade.bmp" (absolute) or "/Blockade.bmp" (Relative) for a resource in the local assembly.
(I didn't use '/' at first)
"pack://application:,,,/ReferencedAssembly;component/File.xaml" is for referenced assembly. (I guess the problem with the answer is that the authority part is missing)

The following works:
new BitmapImage(new Uri("/MyProject;component/Resources/next.png", UriKind.Relative));
Just replace "MyProject" with the name of your project, and adjust the path to your image.
Make sure the image is added to the project with the "BuildAction" set to "Resource".