protected async virtual void imageSelect()
{
this.IsBusy = true;
await CrossMedia.Current.Initialize();
if (!CrossMedia.Current.IsTakePhotoSupported)
{
await dialogService.DisplayAlertAsync("No Camera", "No camera available.", "OK");
this.IsBusy = false;
return;
}
var file = await CrossMedia.Current.PickPhotoAsync(new Plugin.Media.Abstractions.PickMediaOptions
{
PhotoSize = Plugin.Media.Abstractions.PhotoSize.MaxWidthHeight,
MaxWidthHeight = 500
});
if (file == null)
{
this.IsBusy = false;
return;
}
this.Group.GroupImage = CustomImageSource.FromByteArray(() =>
{
var stream = file.GetStream();
var byteArray = Utils.ReadStram(stream);
file.Dispose();
return(byteArray);
});
this.IsBusy = false;
}
private static async Task setImageSourceFromBlob(GroupItem item)
{
var buffer = await downloadFile(item.Id, container_name_group);
// replace if not defference image
if (buffer != null && !buffer.EqualArray(item.GroupImage.StreamByte))
{
item.GroupImage = CustomImageSource.FromByteArray(() => { return(buffer); });
// save as loadfile
await saveImageByteToLocal(item.Id, container_name_group, buffer);
}
}
public static async Task SetImageSource(GroupItem item)
{
///// set from local
var buffer = await getImageByteFromLocal(item.Id, container_name_group);
if (buffer != null)
{
item.GroupImage = CustomImageSource.FromByteArray(() => { return(buffer); });
}
///// set from Azure blob (not wait)
setImageSourceFromBlob(item);
}
