Multithreading and persistence - GCD
16 important questions on Multithreading and persistence - GCD
What is the basic idea of GCD?
How many types of queue's exist?
How do we create a queue?
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What is dispatch_queue_t ?
Where do we use dispatch_queue_t for?
How do we put a block of code on our queue?
Is a queue an object?
Can u use UIKit outside the main thread?
If you dispatch something on the queue, can you stop it?
Do blocks keep strong pointers to the objects inside of it?
Where does UIRefreshControl inherit from?
How can you set target-action in code? (UIrefreshControl)
How can you make the refreshControl appear in code?
How can you activate the network indicator?
How can you "Create" a spinning wheel?
When you have trouble to elect the element you want, for contra; dragging, how van you easy select them in a little "popover" in xcode?
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