Пример #1
0
        public async Task <UploadViewModel> ShowChooser()
        {
            UploadViewModel uploadViewModel = null;

#if ANDROID
            var uiContext   = new Services.UiContext();
            var mediaPicker = new Xamarin.Media.MediaPicker(uiContext.CurrentContext);
#elif IOS
            var mediaPicker = new Xamarin.Media.MediaPicker();
#endif
#if __MOBILE__
            try
            {
                var mediaFile = await mediaPicker.PickPhotoAsync().ConfigureAwait(false);

                if (mediaFile != null)
                {
                    uploadViewModel = new UploadViewModel();
                    uploadViewModel.PictureStream   = mediaFile.GetStream();
                    uploadViewModel.ImageIdentifier = Guid.NewGuid() + Path.GetExtension(mediaFile.Path);
                }
            }
            catch (TaskCanceledException ex)
            {
                // Happens if they don't select an image and press the
                // back button. Just continue as it is an expected
                // exception.
                Insights.Report(ex);
            }
#else
            var openPicker = new FileOpenPicker {
                ViewMode = PickerViewMode.Thumbnail, SuggestedStartLocation = PickerLocationId.PicturesLibrary
            };
            openPicker.FileTypeFilter.Add(".jpg");
            openPicker.FileTypeFilter.Add(".jpeg");
            openPicker.FileTypeFilter.Add(".png");
            openPicker.FileTypeFilter.Add(".bmp");
            var file = await openPicker.PickSingleFileAsync();

            if (file != null)
            {
                uploadViewModel               = new UploadViewModel();
                uploadViewModel.PictureFile   = file;
                uploadViewModel.PictureStream = await file.OpenReadAsync();

                uploadViewModel.ImageIdentifier = Guid.NewGuid() + file.FileType;
            }
#endif
            return(uploadViewModel);
        }
Пример #2
0
		public async Task<UploadViewModel> ShowChooser()
		{
			UploadViewModel uploadViewModel = null;
#if ANDROID
		    var uiContext = new Services.UiContext();            
            var mediaPicker = new Xamarin.Media.MediaPicker(uiContext.CurrentContext);
#elif IOS
            var mediaPicker = new Xamarin.Media.MediaPicker();
#endif
#if __MOBILE__
            try
            {
                var mediaFile = await mediaPicker.PickPhotoAsync().ConfigureAwait(false);

                if (mediaFile != null)
                {
                    uploadViewModel = new UploadViewModel();
                    uploadViewModel.PictureStream = mediaFile.GetStream();
                    uploadViewModel.ImageIdentifier = Guid.NewGuid() + Path.GetExtension(mediaFile.Path);
                }
            }
			catch (TaskCanceledException ex)
			{
				// Happens if they don't select an image and press the 
				// back button. Just continue as it is an expected
				// exception.
				Insights.Report(ex);
			}
#else
            var openPicker = new FileOpenPicker { ViewMode = PickerViewMode.Thumbnail, SuggestedStartLocation = PickerLocationId.PicturesLibrary };
            openPicker.FileTypeFilter.Add(".jpg");
            openPicker.FileTypeFilter.Add(".jpeg");
            openPicker.FileTypeFilter.Add(".png");
            openPicker.FileTypeFilter.Add(".bmp");
            var file = await openPicker.PickSingleFileAsync();

            if (file != null)
            {
                uploadViewModel = new UploadViewModel();
                uploadViewModel.PictureFile = file;
                uploadViewModel.PictureStream = await file.OpenReadAsync();
                uploadViewModel.ImageIdentifier = Guid.NewGuid() + file.FileType;
            }
#endif
			return uploadViewModel;
		}