private static void CheckBundleVersion()
{
// Drop a version nugget and clear the disk cache if one didn't previously exist, or it's not the same
var version = AppGlobal.BundleVersion;
string appdir = NSBundle.MainBundle.BundleUrl.Path;
string cache = Path.GetFullPath(Path.Combine(appdir, "..", "Library", "Caches"));
var versionPath = Path.Combine(cache, "v.txt");
var dumpDiskCache = false;
if (!File.Exists(versionPath))
{
dumpDiskCache = true;
File.WriteAllText(versionPath, version);
}
else
{
var versionOnDisk = File.ReadAllText(versionPath);
if (!version.Equals(versionOnDisk))
{
dumpDiskCache = true;
File.WriteAllText(versionPath, version);
}
}
if (dumpDiskCache)
{
ImageCache.Clear();
ImageCache.DumpDiskCache();
}
}
public override void ReceiveMemoryWarning(UIApplication application)
{
ImageCache.Clear();
}