![]() ![]() To hide the loading animation as soon as all the background tasks are finished getUserFacebookData() To show the loading animation while background tasks are running hideLoadingAnimation() I have the following methods: showLoadingAnimation() They can be submitted in the form of an anonymous closure: DispatchQueue.global().Please help me to solve this problem - after a lot of (not so efficent.) search I can't do this alone. #Dsync swift codeTasks can refer to any block of code that you submit to a queue using the sync or async functions. The private queues that you create will ultimately land in one of the global concurrent queues based on their given parameters. ![]() There is an optional QoS parameter as well. #Dsync swift serialWhen creating private queues, it helps to use a descriptive label (such as reverse DNS notation), as this will aid you while debugging in Xcode’s navigator, lldb, and Instruments:īy default, private queues are serial (I’ll explain what this means shortly, promise!) If you want to create a private concurrent queue, you can do so via the optional attributes parameter: let concurrent = DispatchQueue(label: "-queue", attributes. #Dsync swift updateThen we update the UI with the results on the main queue: (with: url) default QoS falls somewhere between user initiated and utilityĪdditionally, you can create your own private queues using the following syntax: let serial = DispatchQueue(label: "-queue") When performing a long-running task (network call, computationally intensive work, etc), we avoid freezing the UI by performing this work on a background queue. This queue is responsible for drawing your application’s UI and responding to user interactions (touch, scroll, pan, etc.) If you block this queue for too long, your iOS app will appear to freeze, and your macOS app will display the infamous beach ball/spinning wheel.
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