How to track if UIImageView has completed its redraw cycle
I'm quite new to iOS programming, I have this iOS program where I have a list of images to display, one after another in quick-as-possible succession. In the loop body:

    UIImage *myImage = [UIImage imageWithContentsOfFile:path];
    filePreviewView.image = myImage; //UIImageView filePreviewView
    [filePreviewView setNeedsDisplay];
    //wait until filePreviewView is updated with the new myImage
    //loop to next image

The only requirement i must wait for the drawing cycle to complete updating UIImageView with the current image index in the list before I display the next image in the list. I have searched other threads on SO but it seems that we are not recommended/allowed to track the RunLoop's completion. Is there a way to track if UIKit has complete its drawing cycle?

Also, is there a way to directly serialise the image drawing on the screen in the foreground without resorting to using another thread in the background? Please advice. Thanks!!
How to track if UIImageView has completed its redraw cycle
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I'm quite new to iOS programming, I have this iOS program where I have a list of images to display, one after another in quick-as-possible succession. In the loop body:

    UIImage *myImage = [UIImage imageWithContentsOfFile:path];
    filePreviewView.image = myImage; //UIImageView filePreviewView
    [filePreviewView setNeedsDisplay];
    //wait until filePreviewView is updated with the new myImage
    //loop to next image

The only requirement i must wait for the drawing cycle to complete updating UIImageView with the current image index in the list before I display the next image in the list. I have searched other threads on SO but it seems that we are not recommended/allowed to track the RunLoop's completion. Is there a way to track if UIKit has complete its drawing cycle?

Also, is there a way to directly serialise the image drawing on the screen in the foreground without resorting to using another thread in the background? Please advice. Thanks!!