private void Initialise()
{
var prefs = NSUserDefaults.StandardUserDefaults;
mPlaySounds = prefs.BoolForKey("PlaySounds");
mDISVC = new DrawingImageScrollViewController(UIScreen.MainScreen.Bounds);
mFlowView = new OpenFlowView(UIScreen.MainScreen.Bounds, this);
#if DEBUG
mFlowView.Changed += delegate(object sender, EventArgs e)
{
Debug.WriteLine("Changed to " + mFlowView.Selected);
};
#endif
mFlowView.OnSingleTap += OnSingleTap;
// Load images on demand on a worker thread
mFlowView.NumberOfImages = mImgMgr.ImageCount;
View = mFlowView;
mWaitCursor.Frame = new RectangleF(0f, 0f, 50f, 50f);
mWaitCursor.Center = View.Center;
mWaitCursor.ActivityIndicatorViewStyle = UIActivityIndicatorViewStyle.WhiteLarge;
mWaitCursor.HidesWhenStopped = true;
View.AddSubview(mWaitCursor);
// Start our thread queue system
new Thread(Worker).Start();
mSignal.Set();
}
void Initialize()
{
flowView = new OpenFlowView(UIScreen.MainScreen.Bounds, this);
View = flowView;
using (var alertView = new UIAlertView("OpenFlowSharp Demo Data Source",
"Would you like to download images from Flickr or use 30 sample images included with this project?",
null, "Flickr",
"Samples (all at once)",
"Samples (using threads)")){
alertView.Dismissed += delegate(object sender, UIButtonEventArgs e) {
switch (e.ButtonIndex)
{
// Flickr
case 0:
flickr = new Flickr(apiKey, sharedSecret);
tasks.Enqueue(delegate {
try {
Network = true;
photos = flickr.InterestingnessGetList();
Network = false;
InvokeOnMainThread(delegate {
flowView.NumberOfImages = photos.Count;
});
} catch {
InvokeOnMainThread(delegate {
using (var alert = new UIAlertView("Error", "While accessing Flickr", null, "Ok")){
alert.Show();
}
});
}
});
break;
// Load images on demand on a worker thread
case 2:
flowView.NumberOfImages = 30;
break;
// Sync case, load all images at startup
case 1:
LoadAllImages();
return;
}
// Start our thread queue system
new Thread(Worker).Start();
signal.Set();
};
alertView.Show();
}
}
void IOpenFlowDataSource.RequestImage(OpenFlowView view, int index)
{
NSAction task = delegate
{
var img = UIImage.FromFile(mImgMgr.Thumbs(index));
InvokeOnMainThread(delegate
{
mFlowView [index] = img;
});
};
lock (mTasks)
{
mTasks.Enqueue(task);
}
mSignal.Set();
}
void IOpenFlowDataSource.RequestImage(OpenFlowView view, int index)
{
NSAction task;
if (flickr == null)
{
task = delegate {
var img = UIImage.FromFile("images/" + index + ".jpg");
InvokeOnMainThread(delegate {
flowView [index] = img;
});
};
}
else
{
task = delegate {
Network = true;
var data = NSData.FromUrl(new NSUrl(photos [index].SmallUrl));
var image = UIImage.LoadFromData(data);
Network = false;
if (image != null)
{
InvokeOnMainThread(delegate {
image = PrepareFlickrPhoto(image, CalculateSizeForCroppingBox(image, 255, 255));
flowView [index] = image;
});
}
};
}
lock (tasks){
tasks.Enqueue(task);
}
signal.Set();
}
