public static Task FromParseObject (ParseObject po)
{
var t = new Task();
t.Id = po.ObjectId;
t.Title = Convert.ToString(po["Title"]);
t.Description = Convert.ToString (po["Description"]);
t.IsDone = Convert.ToBoolean (po["IsDone"]);
return t;
}
public int SaveItem(Task item)
{
lock (locker) {
if (item.Id > 0) {
Update (item);
return item.Id;
} else {
return Insert (item);
}
}
}
protected async override void OnCreate (Bundle bundle)
{
base.OnCreate (bundle);
#region color the titlebar
View titleView = Window.FindViewById(Android.Resource.Id.Title);
if (titleView != null) {
IViewParent parent = titleView.Parent;
if (parent != null && (parent is View)) {
View parentView = (View)parent;
parentView.SetBackgroundColor(Color.Rgb(0x26, 0x75 ,0xFF)); //38, 117 ,255
}
}
#endregion
// set our layout to be the details screen
SetContentView(Resource.Layout.TaskDetails);
taskID = Intent.GetStringExtra ("TaskID");
// find all our controls
nameTextEdit = FindViewById<EditText>(Resource.Id.txtName);
notesTextEdit = FindViewById<EditText>(Resource.Id.txtNotes);
saveButton = FindViewById<Button>(Resource.Id.btnSave);
doneCheckbox = FindViewById<CheckBox>(Resource.Id.chkDone);
deleteButton = FindViewById<Button>(Resource.Id.btnCancelDelete);
// set the cancel delete based on whether or not it's an existing task
deleteButton.Enabled = false;
saveButton.Text = "waiting...";
saveButton.Enabled = false;
// button clicks
deleteButton.Click += Delete;
saveButton.Click += Save;
if (!String.IsNullOrEmpty(taskID))
task = await Populate();
else
task = new Task();
// name
nameTextEdit.Text = task.Title;
// notes
notesTextEdit.Text = task.Description;
doneCheckbox.Checked = task.IsDone;
saveButton.Text = "Save";
saveButton.Enabled = true;
deleteButton.Enabled = true;
}
async System.Threading.Tasks.Task<Parse.Task> Populate ()
{
Task ta = new Task();
try {
var query = ParseObject.GetQuery("Task").WhereEqualTo("objectId", taskID);
var t = await query.FirstAsync();
ta = Task.FromParseObject (t);
} catch (ParseException pe) {
Console.WriteLine ("Parse Exception:{0}", pe.Message);
}
return ta;
}
public override async void ViewDidLoad ()
{
base.ViewDidLoad ();
addButton = new UIBarButtonItem(UIBarButtonSystemItem.Add, (s,e) => {
var task = new Task() {Title="<new task>"};
var ts = new TaskScreen (task, this);
NavigationController.PushViewController (ts, true);
});
NavigationItem.RightBarButtonItem = addButton;
await ReloadAsync();
}
async System.Threading.Tasks.Task Populate ()
{
Title = "loading...";
Task ta = new Task();
try {
UIApplication.SharedApplication.NetworkActivityIndicatorVisible = true;
var query = ParseObject.GetQuery("Task").WhereEqualTo("objectId", task.Id);
var t = await query.FirstAsync();
ta = Task.FromParseObject (t);
} catch (ParseException pe) {
Console.WriteLine ("Parse Exception:{0}", pe.Message);
} finally {
Title = ""; // clear "loading..." message
UIApplication.SharedApplication.NetworkActivityIndicatorVisible = false;
}
// Populate UI controls
titleText.Text = ta.Title??"";
descriptionText.Text = ta.Description??"";
doneSwitch.On = ta.IsDone;
saveButton.Enabled = true;
doneSwitch.Enabled = true;
deleteButton.Enabled = true;
}
public TaskScreen (Task t, TaskListScreen caller) {
task = t;
screen = caller;
}
