bool TryLoadCachedImageAsync(NewsEntry entry, string imageName)
{
// if it exists, spawn a thread to load and decode it
if (FileCache.Instance.FileExists(imageName) == true)
{
AsyncLoader.LoadImage(imageName, false, false,
delegate(Bitmap imageBmp)
{
if (FragmentActive == true)
{
// if for some reason it loaded corrupt, remove it.
if (imageBmp == null)
{
FileCache.Instance.RemoveFile(imageName);
return(false);
}
else
{
// we might be replacing an existing image, so be sure to dispose our reference to it.
if (entry.Image != null)
{
entry.Image.Dispose( );
entry.Image = null;
}
// flag that we do HAVE the image
entry.Image = imageBmp;
RefreshListView( );
return(true);
}
}
return(false);
});
return(true);
}
else
{
return(false);
}
}
void SetupDisplay(View view)
{
// setup our message list view
MessagesListView = view.FindViewById <ListView>(Resource.Id.notes_details_list);
MessagesListView.SetOnTouchListener(this);
MessagesListView.Divider = null;
// setup the messages list
MessagesListView.Adapter = new NotesDetailsArrayAdapter(this);
// load the placeholder and series image
SeriesBillboard = null;
bool imageExists = TryLoadBanner(NotesTask.FormatBillboardImageName(Series.SeriesName));
if (imageExists == false)
{
//string widthParam = string.Format( "&width={0}", NavbarFragment.GetContainerDisplayWidth_Landscape( ) );
// use the placeholder and request the image download
FileCache.Instance.DownloadFileToCache(Series.BillboardUrl, NotesTask.FormatBillboardImageName(Series.SeriesName), null,
delegate
{
TryLoadBanner(NotesTask.FormatBillboardImageName(Series.SeriesName));
});
AsyncLoader.LoadImage(PrivateNoteConfig.NotesMainPlaceholder, true, false,
delegate(Bitmap imageBmp)
{
if (FragmentActive == true && imageBmp != null)
{
PlaceholderImage = imageBmp;
RefreshList( );
return(true);
}
return(false);
});
}
}
bool TryLoadBanner(string filename)
{
// if the file exists
if (FileCache.Instance.FileExists(filename) == true)
{
// load it asynchronously
AsyncLoader.LoadImage(filename, false, false,
delegate(Bitmap imageBmp)
{
if (IsFragmentActive == true)
{
// if for some reason it loaded corrupt, remove it.
if (imageBmp == null)
{
FileCache.Instance.RemoveFile(filename);
return(false);
}
else
{
FreeImageResources( );
HeaderImage = imageBmp;
ImageBanner.SetImageBitmap(HeaderImage);
ImageBanner.Invalidate( );
Rock.Mobile.PlatformSpecific.Android.UI.Util.FadeView(ImageBanner, true, null);
return(true);
}
}
return(false);
});
return(true);
}
else
{
return(false);
}
}
void SetupDisplay(View view)
{
// get the placeholder image in case we need it
// attempt to load the image from cache. If that doesn't work, use a placeholder
HeaderImage = null;
bool imageExists = TryLoadBanner(HeaderImageName);
if (imageExists == false)
{
// use the placeholder and request the image download
string widthParam = string.Format("&width={0}", NavbarFragment.GetContainerDisplayWidth_Landscape( ));
string requestUrl = Rock.Mobile.Util.Strings.Parsers.AddParamToURL(HeaderImageURL, widthParam);
FileCache.Instance.DownloadFileToCache(requestUrl, HeaderImageName, null,
delegate
{
TryLoadBanner(HeaderImageName);
});
AsyncLoader.LoadImage(PrivateGeneralConfig.NewsDetailsPlaceholder, true, false,
delegate(Bitmap imageBmp)
{
if (IsFragmentActive == true && imageBmp != null)
{
HeaderImage = imageBmp;
ImageBanner.SetImageBitmap(HeaderImage);
ImageBanner.Invalidate( );
Rock.Mobile.PlatformSpecific.Android.UI.Util.FadeView(ImageBanner, true, null);
return(true);
}
return(false);
});
}
}
void SetupDisplay( )
{
// load the top banner
AsyncLoader.LoadImage(PrivateConnectConfig.MainPageHeaderImage, true, true,
delegate(Bitmap imageBmp)
{
if (FragmentActive == true && imageBmp != null)
{
Billboard = imageBmp;
((ListAdapter)ListView.Adapter).NotifyDataSetChanged( );
return(true);
}
return(false);
});
// load the thumbnails
for (int i = 0; i < GetEngagedEntries.Count; i++)
{
int imageIndex = i;
AsyncLoader.LoadImage(GetEngagedEntries[i].ImageName, true, false,
delegate(Bitmap imageBmp)
{
if (FragmentActive == true && imageBmp != null)
{
GetEngagedBillboards[imageIndex] = imageBmp;
((ListAdapter)ListView.Adapter).NotifyDataSetChanged( );
return(true);
}
return(false);
});
}
}
void SetupDisplay(View view)
{
ListView = view.FindViewById <ListView>(Resource.Id.news_primary_list);
ListView.ItemClick += (object sender, AdapterView.ItemClickEventArgs e) =>
{
// in portrait mode, it's fine to use the list
// for click detection
OnClick(e.Position);
};
ListView.SetOnTouchListener(this);
ListView.Adapter = new PortraitNewsArrayAdapter(this);
// load the placeholder image
AsyncLoader.LoadImage(PrivateGeneralConfig.NewsMainPlaceholder, true, false,
delegate(Bitmap imageBmp)
{
if (FragmentActive == true && imageBmp != null)
{
Placeholder = imageBmp;
imageBmp = null;
RefreshListView( );
return(true);
}
return(false);
});
// here we're simply trying to load the images that are already
// stored
for (int i = 0; i < News.Count; i++)
{
TryLoadCachedImageAsync(News[i], News[i].News.ImageName);
}
}
bool TryLoadBanner(string filename)
{
// if the file exists
if (FileCache.Instance.FileExists(filename) == true)
{
// load it asynchronously
AsyncLoader.LoadImage(filename, false, false,
delegate(Bitmap imageBmp)
{
if (FragmentActive == true)
{
// if for some reason it loaded corrupt, remove it.
if (imageBmp == null)
{
FileCache.Instance.RemoveFile(filename);
return(false);
}
else
{
SeriesBillboard = imageBmp;
RefreshList( );
return(true);
}
}
return(false);
});
return(true);
}
else
{
return(false);
}
}
