internal static void Fetch(this ApplicationInfoFilter filter, Interop.ApplicationManager.AppInfoFilterCallback callback)
{
if (filter is ApplicationInfoMetadataFilter)
{
ApplicationInfoMetadataFilter metaFilter = (ApplicationInfoMetadataFilter)filter;
metaFilter.Fetch(callback);
return;
}
IntPtr nativeHandle = MakeNativeAppInfoFilter(filter.Filter);
if (nativeHandle == IntPtr.Zero)
{
throw ApplicationManagerErrorFactory.NativeFilterHandleIsInvalid();
}
try
{
Interop.ApplicationManager.ErrorCode err = Interop.ApplicationManager.AppInfoFilterForeachAppinfo(nativeHandle, callback, IntPtr.Zero);
if (err != Interop.ApplicationManager.ErrorCode.None)
{
throw ApplicationManagerErrorFactory.GetException(err, "Failed to get application information list with filter.");
}
}
finally
{
Interop.ApplicationManager.AppInfoFilterDestroy(nativeHandle);
}
}
/// <summary>
/// Gets the information of the installed applications with the ApplicationInfoMetadataFilter asynchronously.
/// </summary>
/// <param name="filter">Key-value pairs for filtering.</param>
/// <returns>The installed application info list.</returns>
/// <since_tizen> 3 </since_tizen>
public static async Task <IEnumerable <ApplicationInfo> > GetInstalledApplicationsAsync(ApplicationInfoMetadataFilter filter)
{
return(await Task.Run(() =>
{
List <ApplicationInfo> result = new List <ApplicationInfo>();
Interop.ApplicationManager.AppInfoFilterCallback cb = (IntPtr infoHandle, IntPtr userData) =>
{
if (infoHandle != IntPtr.Zero)
{
IntPtr clonedHandle = IntPtr.Zero;
Interop.ApplicationManager.ErrorCode err = Interop.ApplicationManager.AppInfoClone(out clonedHandle, infoHandle);
if (err != Interop.ApplicationManager.ErrorCode.None)
{
Log.Warn(LogTag, "Failed to clone the appinfo. err = " + err);
return false;
}
ApplicationInfo app = new ApplicationInfo(clonedHandle);
result.Add(app);
return true;
}
return false;
};
filter.Fetch(cb);
return result;
}).ConfigureAwait(false));
}