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);
}
//constructor
public SettingViewModel(INavigationService navigationService, IPageDialogService dialogService)
: base(navigationService, dialogService)
{
this.User = GlobalAttributes.User;
Task.Run(() => Service.ImageService.SetImageSource(this.User));
if (this.User.UserImage == null)
{
this.User.UserImage = CustomImageSource.FromFile(Constants.IconAccountName);
}
SettingItems = new ObservableCollection <SettingMenuVMItem>();
SettingItems.Add(new SettingMenuVMItem("Manage Group", "Manage groups that share reports.", openManageGroup));
SettingItems.Add(new SettingMenuVMItem("See the Source Code", "Access GitHub to see the source code of APO-Chan.", openGithub));
SettingItems.Add(new SettingMenuVMItem("About us", "Access ExceedOne Homepage.", openExcedOne));
SettingItems.Add(new SettingMenuVMItem("Version", Xamarin.Forms.DependencyService.Get <IAssemblyService>().GetVersionName(), versionStub));
SettingItems.Add(new SettingMenuVMItem("SignOut", "SignOut From APO-Chan.", navigateSignOut));
}
public async Task <CustomImageSource> GetImage(string url, bool overwrite = false, bool login = false, Size size = default(Size), Action <double, double> progressAction = null, CancellationTokenSource cancelToken = null)
{
CustomImageSource result = new CustomImageSource();
var file = GetCacheFile(url, overwrite);
var fp = string.Empty;
var id = url.GetIllustId();
var fn = url.GetImageId();
if (!string.IsNullOrEmpty(file))
{
result = await file.LoadImageFromFile(size);
}
else
{
file = GetImagePath(url);
if (file.IsDownloading() && await file.WaitDownloading(timeout: TimeSpan.FromSeconds(30)))
{
result = await file.LoadImageFromFile(size);
}
if (result.Source == null || string.IsNullOrEmpty(result.SourcePath))
{
var success = login ? await url.SaveImage(await CommonHelper.ShowLogin(), file, overwrite) : await url.SaveImage(file, overwrite, progressAction, cancelToken : cancelToken);
if (success)
{
result = await file.LoadImageFromFile(size);
}
file.ClearDownloading();
}
}
if (!(result.Source is ImageSource) && (url.IsDownloadedAsync(out fp, true) || url.IsDownloadedAsync(out fp)))
{
result = await fp.LoadImageFromFile(size);
}
if (result.Source is ImageSource && !string.IsNullOrEmpty(id))
{
var hash = result.GetHashCode();
loadedImageHashTable[hash] = id;
loadedImageFileTable[hash] = fn;
}
return(result);
}