When is didfinishlaunchingwithoptions called

This is why drawRect: was never called when you implemented drawLayer:inContext:. You should also never make any view the drawing delegate for another layer. That will cause all sorts of wackiness. The documentation for UIViewController explains how the view property is lazy-loaded and that viewDidLoad is called after the view is loaded. Figured this out. It turns out that the boost. This ends up giving pretty much the identical solution used in the std::thread issue referred to in the question.

That file is ifdef'd for the different arm architectures, but it is not clear to me that the defines it is looking for are defined in the IOS compile environment using the script. So you can either edit the file violent but effective or invest some time to figure out how to make this tidy and correct. In any case, you may need to insert the extra assembly instruction that I did above in the question: "it ne; n" I have not yet gone back to see if I can delete that now that I have my compile environment working problem.

However, we're not done yet. The code used in boost for this option includes, as discussed, ARM assembly language instructions. The ARM chips support two instruction sets which can't be mixed in a given module not sure of the scope, but evidently file by file is an acceptable granularity when compiling. The instructions used in boost for this locking include non-Thumb instructions, but IOS by default uses the Thumb instruction set. The boost code, aware of the instruction set issue, checks to see that you have arm enabled but not thumb , but by default in IOS, thumb is on.

Also any files in your IOS app which use any part of boost which uses smart pointers will also have to be compiled using -mno-thumb. Thanks in advance. From Apple documentation :. Your question, can anybody tell me in what all scenarios does the delegate function didFinishLaunchingWithOptions gets called by the IOS? If app is killed or in terminated state and user receives a local notification or remote push notification, and user taps notification, then didFinishLaunchingWithOptions gets called first in both cases.

From Apple. If you start this service and your app is subsequently terminated, the system automatically relaunches the app into the background if a new event arrives. In such a case, the options dictionary passed to the application :willFinishLaunchingWithOptions: and application :didFinishLaunchingWithOptions: methods of your app delegate contains the key location to indicate that your app was launched because of a location event.

This scenarios described in Launch Options Keys. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. This has been in all our projects so far, but it's not one we've had to work with until now. Look for the didFinishLaunchingWithOptions method, which should be at the top of the file. This gets called by iOS when the app has finished loading and is ready to be used, and we're going to hijack it to insert a second ViewController into our tab bar.

It should already have some default Apple code in there, but we're going to add some more just before the return true line:. So, the code creates a duplicate ViewController wrapped inside a navigation controller, gives it a new tab bar item to distinguish it from the existing tab, then adds it to the list of visible tabs.

This lets us use the same class for both tabs without having to duplicate things in the storyboard. Remember, both tabs contain a ViewController , which means the same code is executed. Right now that means both will download the same JSON feed, which makes having two tabs pointless. Sign up for free to join this conversation on GitHub.

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