async void OnListViewItemSelected(object sender, SelectedItemChangedEventArgs e)
{
fileName = e.SelectedItem.ToString();
var imageData = await AzureStorage.GetFileAsync(ContainerType.Image, fileName);
editor.Source = ImageSource.FromStream(() => new MemoryStream(imageData));
//deleteButton.IsEnabled = true;
}
public TextFileBrowserPageCS()
{
var getFilesButton = new Button {
Text = "Get Text File List"
};
getFilesButton.Clicked += OnGetFileListButtonClicked;
listView = new ListView();
listView.ItemSelected += async(sender, e) =>
{
fileName = e.SelectedItem.ToString();
var imageData = await AzureStorage.GetFileAsync(ContainerType.Image, fileName);
editor.Source = ImageSource.FromStream(() => new MemoryStream(imageData));
deleteButton.IsEnabled = true;
};
deleteButton = new Button
{
Text = "Delete",
IsEnabled = false
};
deleteButton.Clicked += async(sender, e) =>
{
if (!string.IsNullOrWhiteSpace(fileName))
{
bool isDeleted = await AzureStorage.DeleteFileAsync(ContainerType.Text, fileName);
if (isDeleted)
{
OnGetFileListButtonClicked(sender, e);
}
}
};
Title = "Text File Browser";
Icon = "csharp.png";
Content = new StackLayout
{
Margin = new Thickness(20),
Children =
{
new Label {
Text = "Text File Browser", FontAttributes = FontAttributes.Bold, HorizontalOptions = LayoutOptions.Center
},
getFilesButton,
listView,
new Label {
Text = "Text file contents:"
},
editor,
deleteButton
}
};
}
async void OnListViewItemSelected(object sender, SelectedItemChangedEventArgs e)
{
fileName = e.SelectedItem.ToString();
var byteData = await AzureStorage.GetFileAsync(ContainerType.Text, fileName);
var text = Encoding.UTF8.GetString(byteData);
editor.Text = text;
deleteButton.IsEnabled = true;
}
async void Handle_SelectedIndexChanged(object sender, System.EventArgs e)
{
if (pickerList.SelectedIndex > -1)
{
DialogService.ShowLoading(Strings.Loading);
fileName = pickerList.Items[pickerList.SelectedIndex];
var imageData = await AzureStorage.GetFileAsync(ContainerType.Image, fileName);
editor.Source = ImageSource.FromStream(() => new MemoryStream(imageData));
DialogService.HideLoading();
}
}
async void OnDownloadImageButtonClicked(object sender, EventArgs e)
{
if (!string.IsNullOrWhiteSpace(uploadedFilename))
{
activityIndicator.IsRunning = true;
var imageData = await AzureStorage.GetFileAsync(ContainerType.Image, uploadedFilename);
downloadedImage.Source = ImageSource.FromStream(() => new MemoryStream(imageData));
activityIndicator.IsRunning = false;
}
}
async void OnDownloadButtonClicked(object sender, EventArgs e)
{
if (!string.IsNullOrWhiteSpace(uploadedFilename))
{
activityIndicator.IsRunning = true;
var byteData = await AzureStorage.GetFileAsync(ContainerType.Text, uploadedFilename);
var text = Encoding.UTF8.GetString(byteData);
downloadEditor.Text = text;
activityIndicator.IsRunning = false;
}
}
public ImageFileUploaderPageCS()
{
var imageToUpload = new Image();
var downloadedImage = new Image();
var activityIndicator = new ActivityIndicator();
var downloadButton = new Button {
Text = "Download Image", IsEnabled = false
};
downloadButton.Clicked += async(sender, e) =>
{
if (!string.IsNullOrWhiteSpace(uploadedFilename))
{
activityIndicator.IsRunning = true;
var imageData = await AzureStorage.GetFileAsync(ContainerType.Image, uploadedFilename);
downloadedImage.Source = ImageSource.FromStream(() => new MemoryStream(imageData));
activityIndicator.IsRunning = false;
}
};
var uploadButton = new Button {
Text = "Upload Image"
};
uploadButton.Clicked += async(sender, e) =>
{
activityIndicator.IsRunning = true;
uploadedFilename = await AzureStorage.UploadFileAsync(ContainerType.Image, new MemoryStream(byteData));
uploadButton.IsEnabled = false;
downloadButton.IsEnabled = true;
activityIndicator.IsRunning = false;
};
#if __IOS__
byteData = Convert.ToByteArray("FileUploader.iOS.waterfront.jpg");
#endif
#if __ANDROID__
byteData = Convert.ToByteArray("FileUploader.Droid.waterfront.jpg");
#endif
#if WINDOWS_UWP
byteData = Convert.ToByteArray("FileUploader.UWP.waterfront.jpg");
#endif
imageToUpload.Source = ImageSource.FromStream(() => new MemoryStream(byteData));
Title = "Upload Image";
Icon = "csharp.png";
Content = new ScrollView
{
Content = new StackLayout
{
Margin = new Thickness(20),
Children =
{
new Label {
Text = "Image Upload and Download", FontAttributes = FontAttributes.Bold, HorizontalOptions = LayoutOptions.Center
},
imageToUpload,
uploadButton,
activityIndicator,
downloadButton,
downloadedImage
}
}
};
}
public TextFileUploaderPageCS()
{
var uploadEditor = new Editor {
HeightRequest = 100
};
var downloadEditor = new Editor {
HeightRequest = 100, IsEnabled = false
};
var activityIndicator = new ActivityIndicator();
var downloadButton = new Button {
Text = "Download", IsEnabled = false
};
downloadButton.Clicked += async(sender, e) =>
{
if (!string.IsNullOrWhiteSpace(uploadedFilename))
{
activityIndicator.IsRunning = true;
var byteData = await AzureStorage.GetFileAsync(ContainerType.Text, uploadedFilename);
var text = Encoding.UTF8.GetString(byteData);
downloadEditor.Text = text;
activityIndicator.IsRunning = false;
}
};
var uploadButton = new Button {
Text = "Upload"
};
uploadButton.Clicked += async(sender, e) =>
{
if (!string.IsNullOrWhiteSpace(uploadEditor.Text))
{
activityIndicator.IsRunning = true;
var byteData = Encoding.UTF8.GetBytes(uploadEditor.Text);
uploadedFilename = await AzureStorage.UploadFileAsync(ContainerType.Text, new MemoryStream(byteData), "");
downloadButton.IsEnabled = true;
activityIndicator.IsRunning = false;
}
};
Title = "Upload Text";
Icon = "csharp.png";
Content = new StackLayout
{
Margin = new Thickness(20),
Children =
{
new Label {
Text = "Text Upload and Download", FontAttributes = FontAttributes.Bold, HorizontalOptions = LayoutOptions.Center
},
new Label {
Text = "Enter text:"
},
uploadEditor,
uploadButton,
activityIndicator,
downloadButton,
downloadEditor
}
};
}