private static async Task RenderThumbnailAsync
(
this PortableAsyncRenderer <Bitmap> asyncRenderer,
PortableCorrelatedEntity correlatedEntity,
Action <Action> runOnUiThread,
AndroidCachingImageView thumbnailView,
int thumbnailWidth,
int thumbnailHeight,
Resources activityResources,
Drawable originalBackground,
AnimationDrawable loadingAnimation,
Action <CorruptObjectException, ImageView> onCorrupt,
Action <ImageView, Drawable, AnimationDrawable, bool> onFinished
)
{
bool isLoaded = false;
if (correlatedEntity.CorrelationTag != thumbnailView.GetCorrelationTag())
{
onFinished?.Invoke(thumbnailView,
originalBackground,
loadingAnimation,
isLoaded);
return;
}
Bitmap thumbnailBitmap = null;
CorruptObjectException thumbnailException = null;
BitmapDrawable thumbnailDrawable = AndroidCrapApplication.GetDrawableFromCache
(
correlatedEntity.CorrelationTag
);
if (thumbnailDrawable == null)
{
try
{
/*thumbnailDrawable = AndroidCrapApplication.GetReusableBitmapDrawable(thumbnailWidth,
* thumbnailHeight);*/
thumbnailBitmap = await asyncRenderer.GetThumbnailAsync
(
correlatedEntity,
() => thumbnailView.GetCorrelationTag(),
thumbnailWidth,
thumbnailHeight//,
//thumbnailDrawable.Bitmap
);
}
catch (Exception exception)
{
AndroidCrapApplication.ApplicationLogger.LogError(exception);
thumbnailBitmap?.Dispose();
thumbnailException = exception as CorruptObjectException;
if (thumbnailException == null)
{
throw;
}
else
{
runOnUiThread
(
() => onCorrupt(thumbnailException,
thumbnailView)
);
}
onFinished?.Invoke(thumbnailView,
originalBackground,
loadingAnimation,
isLoaded);
return;
}
if (correlatedEntity.CorrelationTag != thumbnailView.GetCorrelationTag())
{
thumbnailBitmap?.Dispose();
onFinished?.Invoke(thumbnailView,
originalBackground,
loadingAnimation,
isLoaded);
return;
}
if (thumbnailBitmap == null)
{
onFinished?.Invoke(thumbnailView,
originalBackground,
loadingAnimation,
isLoaded);
return;
}
thumbnailDrawable = AndroidCrapApplication.AddBitmapToCache
(
correlatedEntity.CorrelationTag,
thumbnailBitmap,
activityResources
);
}
isLoaded = true;
onFinished?.Invoke(thumbnailView,
originalBackground,
loadingAnimation,
isLoaded);
runOnUiThread
(
() => { thumbnailView.SetImageDrawable(thumbnailDrawable); }
);
/*AndroidCrapApplication.ApplicationLogger.LogDebug("{0} : {1}",
* correlatedEntity.CorrelationTag,
* GC.GetTotalMemory(false));*/
}
