I have an Xamarin Forms project and i try to have a list of Installed applications with the icon.
For now i have the Label, but i dont get the image.
I use the Dependency Service to get the list of applications. :
public IEnumerable<IAppListServiceApplication> GetApplications()
{
var apps = Android.App.Application.Context.PackageManager.GetInstalledApplications(PackageInfoFlags.MatchAll);
foreach (var app in apps)
{
var label = app.LoadLabel(Android.App.Application.Context.PackageManager);
if (!label.ToLower().StartsWith("com."))
yield return new AppListServiceApplication
{
Label = label,
PackageName = app.PackageName,
AppIcon = GetAppIcon(app)
};
}
}
But i'm not able to convert the Android Drawable object to an ImageSource in the Xamarin Forms project. Here's what i try for now :
public ImageSource GetAppIcon(ApplicationInfo app)
{
try
{
var drawable = app.LoadIcon(Android.App.Application.Context.PackageManager);
//return ImageSource.FromStream(() => new MemoryStream(bytes));
Bitmap icon = drawableToBitmap(drawable);
return ImageSource.FromStream(() => MemoryStreamFromBitmap(icon));
}
catch (Exception ex)
{
var message = ex.ToString();
return null;
}
}
MemoryStream MemoryStreamFromBitmap(Bitmap bmp)
{
MemoryStream stream = new MemoryStream();
bmp.Compress(Bitmap.CompressFormat.Png, 0, stream);
return stream;
}
Bitmap drawableToBitmap(Drawable drawable)
{
Bitmap bitmap = null;
if (drawable is BitmapDrawable) {
BitmapDrawable bitmapDrawable = (BitmapDrawable)drawable;
if (bitmapDrawable.Bitmap != null)
{
return bitmapDrawable.Bitmap;
}
}
if (drawable is AdaptiveIconDrawable)
{
AdaptiveIconDrawable adaptiveIconDrawable = (AdaptiveIconDrawable)drawable;
if (!(adaptiveIconDrawable.IntrinsicWidth <= 0 || adaptiveIconDrawable.IntrinsicHeight <= 0))
{
bitmap = Bitmap.CreateBitmap(drawable.IntrinsicWidth, drawable.IntrinsicHeight, Bitmap.Config.Argb8888);
Canvas c = new Canvas(bitmap);
drawable.SetBounds(0, 0, c.Width, c.Height);
drawable.Draw(c);
return bitmap;
}
}
if (drawable.IntrinsicWidth <= 0 || drawable.IntrinsicHeight <= 0)
{
bitmap = Bitmap.CreateBitmap(1, 1, Bitmap.Config.Argb8888); // Single color bitmap will be created of 1x1 pixel
}
else
{
bitmap = Bitmap.CreateBitmap(drawable.IntrinsicWidth, drawable.IntrinsicHeight, Bitmap.Config.Argb8888);
}
Canvas canvas = new Canvas(bitmap);
drawable.SetBounds(0, 0, canvas.Width, canvas.Height);
drawable.Draw(canvas);
return bitmap;
}
As you can see, i'm new in xamarin and Android ^^ . I did not find on Google how to pass a Drawable from Android to display it in Xamarin Forms.
If you can point me the right direction to leard how it can be done.
Tanks
EDIT: Add output error
I get this error in the output window:
ImageLoaderSourceHandler: Image data was invalid: Xamarin.Forms.StreamImageSource
11-05 04:31:19.287 D/skia (10270): --- SkAndroidCodec::NewFromStream returned null
**EDIT: ** Add Project
Here is the problem in gitHub : https://github.com/werddomain/Xamarin-Android-Laucher/tree/master/Forms/AndroidCarLaucher
from Xamarin.Forms List App with Icon (Android Only)
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