/// <summary>
/// Creates and adds a time track objects into the Items collection.
/// </summary>
public async void LoadData() {
var fileList = await ApplicationData.Current.LocalFolder.GetFilesAsync();
var file = fileList.FirstOrDefault(f => f.Name == localFileName);
if (file != null) {
using (var stream = await file.OpenReadAsync()) {
using (var dr = new Windows.Storage.Streams.DataReader(stream)) {
try {
await dr.LoadAsync(unchecked((uint)stream.Size));
var numberOfItems = dr.ReadInt32();
ObservableCollection<TrackItem> loadingItems = new ObservableCollection<TrackItem>();
for (int x = 0; x < numberOfItems; x++) {
TrackItem item = new TrackItem();
item.Start = dr.ReadDateTime();
item.End = dr.ReadDateTime();
int topicLength = dr.ReadInt32();
item.Topic = dr.ReadString((uint)topicLength);
loadingItems.Add(item);
}
bool currentItemExists = dr.ReadBoolean();
TrackItem loadingCurrentItem = null;
if (currentItemExists) {
loadingCurrentItem = new TrackItem();
loadingCurrentItem.Start = dr.ReadDateTime();
int topicLength = dr.ReadInt32();
loadingCurrentItem.Topic = dr.ReadString((uint)topicLength);
}
dr.DetachStream();
Items = loadingItems;
OnPropertyChanged(nameof(Items));
CurrentItem = loadingCurrentItem;
IsDataLoaded = true;
} catch {
try {
await file.DeleteAsync();
} catch { }
CurrentItem = null;
IsDataLoaded = true;
}
}
}
} else {
// Sample data; replace with real data
Items.Add(new TrackItem() {
Topic = "First Tracked Item",
Start = new DateTimeOffset(new DateTime(2015, 11, 5, 9, 0, 0), new TimeSpan(-6, 0, 0)),
End = new DateTimeOffset(new DateTime(2015, 11, 5, 11, 30, 0), new TimeSpan(-6, 0, 0)),
});
Items.Add(new TrackItem() {
Topic = "Second Tracked Item",
Start = new DateTimeOffset(new DateTime(2015, 11, 5, 12, 30, 0), new TimeSpan(-6, 0, 0)),
End = new DateTimeOffset(new DateTime(2015, 11, 5, 17, 0, 0), new TimeSpan(-6, 0, 0)),
});
CurrentItem = null;
this.IsDataLoaded = true;
}
}
// Read out and print the message received from the socket.
private async void StartReader(Windows.Networking.Proximity.ProximityStreamSocket socket,
Windows.Storage.Streams.DataReader reader)
{
uint initialLength = 4;
try
{
await reader.LoadAsync(initialLength);
uint msgLength = (uint)reader.ReadInt32();
try
{
await reader.LoadAsync(msgLength);
string message = reader.ReadString(msgLength);
WriteMessageText("Received message: " + message + "\n");
// After receiving a message, listen for the next message.
StartReader(socket, reader);
}
catch (Exception e)
{
WriteMessageText("Error: " + e.Message + "\n");
socket.Dispose();
}
}
catch (Exception e)
{
WriteMessageText("Error: " + e.Message + "\n");
socket.Dispose();
}
}
public static async Task<List<Session>> DeserializeLocalSessions(StorageFile file) {
using (var stream = await file.OpenSequentialReadAsync()) {
using (var dr = new Windows.Storage.Streams.DataReader(stream)) {
var numberOfSessions = dr.ReadInt32();
List<Session> rv = new List<Session>(numberOfSessions);
for (int x = 0; x < numberOfSessions; x++) {
rv.Add(LoadSession(dr));
}
return rv;
}
}
}
public static async Task <int[]> ReadFile(StorageFile file)
{
int[] result;
var stream = await file.OpenAsync(FileAccessMode.Read);
ulong size = stream.Size;
using (var inputStream = stream.GetInputStreamAt(0))
{
using (var dataReader = new Windows.Storage.Streams.DataReader(inputStream))
{
await dataReader.LoadAsync((uint)size);
int quantity = dataReader.ReadInt32();
result = new int[quantity];
for (int i = 0; i < quantity; i++)
{
result[i] = dataReader.ReadInt32();
}
}
}
return(result);
}
