This tutorial gives explanation on the multi-treading in iOS. In the slides, I explained the most important basic knowledge of multi-threading including two iOS terms "GCD" and "NSOperationQueue."
The demo project is written in Swift 3, the Objective-C version tutorials is here:
• iOS Tutorial Multi-Threading Basics: ...
In the demo, the following url is for the image downloading:
https://upload.wikimedia.org/wikipedi...
The demo project is available in Github with the following link:
https://github.com/SheldonWangRJT/Mul...
For more info, please visit my blog website:
http://iosetutorials.com