public static void ShowFilenameDialog(Activity activity, Func<string, Dialog, bool> onOpen, Func<string, Dialog, bool> onCreate, Action onCancel, bool showBrowseButton, string defaultFilename, string detailsText, int requestCodeBrowse)
{
AlertDialog.Builder builder = new AlertDialog.Builder(activity);
builder.SetView(activity.LayoutInflater.Inflate(Resource.Layout.file_selection_filename, null));
if (onCancel != null)
builder.SetOnCancelListener(new CancelListener(onCancel));
Dialog dialog = builder.Create();
dialog.Show();
Button openButton = (Button) dialog.FindViewById(Resource.Id.open);
Button createButton = (Button) dialog.FindViewById(Resource.Id.create);
TextView enterFilenameDetails = (TextView) dialog.FindViewById(Resource.Id.label_open_by_filename_details);
openButton.Visibility = onOpen != null ? ViewStates.Visible : ViewStates.Gone;
createButton.Visibility = onCreate != null? ViewStates.Visible : ViewStates.Gone;
// Set the initial value of the filename
EditText editFilename = (EditText) dialog.FindViewById(Resource.Id.file_filename);
editFilename.Text = defaultFilename;
enterFilenameDetails.Text = detailsText;
enterFilenameDetails.Visibility = enterFilenameDetails.Text == "" ? ViewStates.Gone : ViewStates.Visible;
// Open button
if (onOpen != null)
openButton.Click += (sender, args) =>
{
String fileName = ((EditText) dialog.FindViewById(Resource.Id.file_filename)).Text;
if (onOpen(fileName, dialog))
dialog.Dismiss();
};
// Create button
if (onCreate != null)
createButton.Click += (sender, args) =>
{
String fileName = ((EditText)dialog.FindViewById(Resource.Id.file_filename)).Text;
if (onCreate(fileName, dialog))
dialog.Dismiss();
};
Button cancelButton = (Button) dialog.FindViewById(Resource.Id.fnv_cancel);
cancelButton.Click += delegate
{
dialog.Dismiss();
if (onCancel != null)
onCancel();
};
ImageButton browseButton = (ImageButton) dialog.FindViewById(Resource.Id.browse_button);
if (!showBrowseButton)
{
browseButton.Visibility = ViewStates.Invisible;
}
browseButton.Click += (sender, evt) =>
{
string filename = ((EditText) dialog.FindViewById(Resource.Id.file_filename)).Text;
Util.ShowBrowseDialog(activity, requestCodeBrowse, onCreate != null, /*TODO should we prefer ActionOpenDocument here?*/ false);
};
}
public override async Task<JObject> ExecuteTableOperationAsync(IMobileServiceTableOperation operation)
{
MobileServicePreconditionFailedException error;
do
{
error = null;
try
{
return await operation.ExecuteAsync();
}
catch (MobileServicePreconditionFailedException ex)
{
error = ex;
}
if (error != null)
{
var localItem = operation.Item.ToObject<ToDoItem>();
var serverValue = error.Value;
var builder = new AlertDialog.Builder(this.activity);
builder.SetTitle("Conflict between local and server versions");
builder.SetMessage("How do you want to resolve this conflict?\n\n" + "Local item: \n" + localItem +
"\n\nServer item:\n" + serverValue.ToObject<ToDoItem>());
var clickTask = new TaskCompletionSource<int>();
builder.SetPositiveButton(LOCAL_VERSION, (which, e) =>
{
clickTask.SetResult(1);
});
builder.SetNegativeButton(SERVER_VERSION, (which, e) =>
{
clickTask.SetResult(2);
});
builder.SetOnCancelListener(new CancelListener(clickTask));
builder.Create().Show();
int command = await clickTask.Task;
if (command == 1)
{
// Overwrite the server version and try the operation again by continuing the loop
operation.Item[MobileServiceSystemColumns.Version] = serverValue[MobileServiceSystemColumns.Version];
continue;
}
else if (command == 2)
{
return (JObject)serverValue;
}
else
{
operation.AbortPush();
}
}
} while (error != null);
return null;
}
