Determining When Image Loads

[nd049]

Hi Everyone,

I was wondering if there is any way to determine when a UIImageView loads the actual picture. The reason I ask is I want to have an object that while a high resolution image loads it shows "Loading..." or something like that until the image has fully loaded.

Thanks in advance!

[dany_dev]

how many time require to load it? and how is the resolution?

maybe you should consider to use tiled images to increase performance.

[nd049]

Originally Posted by dany_dev

how many time require to load it? and how is the resolution?

maybe you should consider to use tiled images to increase performance.

Well in the long run I would like to have a master view with probably around 12 of these objects inside it and when the use taps on the object it would bring it into a full screen view of the picture. The resolution is around 210 dpi but I am not too worried on performance at this point just in if it is possible to tell when a image loads into an UIImageView.

[nd049]

I don't know if it is possible but is there a way to see when viewDidLoad for a UIImageView is called? If so it seems like that would be a good place to start for this.

[sneaky]

I imagine you will run out of memory long before this becomes a problem.

[thomashw]

Check out this project, specifically the UIImageView+WebCache category.

You could set the loading image as the placeHolder image, and it will be replaced once the image is downloaded.

https://github.com/rs/SDWebImage

[nd049]

Originally Posted by thomashw

Check out this project, specifically the UIImageView+WebCache category.

You could set the loading image as the placeHolder image, and it will be replaced once the image is downloaded.

https://github.com/rs/SDWebImage

thanks! that is exactly what i needed!