private async Task SelectWireframe(WireframeViewModel wireframe)
{
if (wireframe == null)
{
return;
}
SelectedWireframe = null;
var wireframeViewModel = new WireframeDetailViewModel(wireframe, wireframeStore, pageService);
wireframeViewModel.WireframeUpdated += (source, updatedWireframe) => {
wireframe.WireframeId = updatedWireframe.WireframeId;
wireframe.Title = updatedWireframe.Title;
wireframe.Description = updatedWireframe.Description;
wireframe.Date = updatedWireframe.Date;
wireframe.FileName = updatedWireframe.FileName;
wireframe.FileLocation = updatedWireframe.FileLocation;
wireframe.FileDate = updatedWireframe.FileDate;
};
await pageService.PushAsync(new WireframeDetailPage(wireframeViewModel));
}
private async Task CapturePicture(WireframeViewModel wireframe)
{
await CrossMedia.Current.Initialize();
if (CrossMedia.Current.IsCameraAvailable && CrossMedia.Current.IsTakePhotoSupported)
{
DateTime currentDateTime = DateTime.Now;
StoreCameraMediaOptions options = new StoreCameraMediaOptions {
Directory = "Captures",
Name = $"{currentDateTime.ToString("yyyyMMddHHmmssff")}.jpg",
PhotoSize = PhotoSize.Medium,
CompressionQuality = 50
};
var capturedImage = await CrossMedia.Current.TakePhotoAsync(options);
if (capturedImage == null)
{
return;
}
Wireframe.FileName = options.Name;
Wireframe.FileLocation = capturedImage.Path;
Wireframe.FileDate = currentDateTime;
OnPropertyChanged(nameof(Wireframe));
}
else
{
await App.Current.MainPage.DisplayAlert(
"Cannot Take Photo", "This device does not support taking a photo", "OK");
return;
}
}
public WireframeDetailViewModel(WireframeViewModel viewModel, IWireframeStore store, IPageService service)
{
if (viewModel == null)
{
throw new ArgumentNullException(nameof(viewModel));
}
wireframeStore = store;
pageService = service;
SaveWireframeCommand = new Command(async() => await SaveWireframe());
CapturePictureCommand = new Command(async() => await CapturePicture(viewModel));
SelectPictureCommand = new Command(async() => await SelectPicture());
Wireframe = new Wireframe {
WireframeId = viewModel.WireframeId,
Title = viewModel.Title,
Description = viewModel.Description,
Date = viewModel.Date,
FileName = viewModel.FileName,
FileLocation = viewModel.FileLocation,
FileDate = viewModel.FileDate
};
}