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Swift Snippets
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| // Set light status bar | |
| //////////////////////////////////////////////////////////////////////////////// | |
| // In the plist file, set `View controller-based status bar appearance` to `NO` | |
| // Then in viewDidLoad() | |
| UIApplication.sharedApplication().statusBarStyle = .LightContent | |
| // Make a scroll view with a big image scroll | |
| //////////////////////////////////////////////////////////////////////////////// | |
| // Tell the scrollView to be the same size as the imageView. | |
| scrollView.contentSize = imageView.frame.size | |
| // Or, set it to a pixel size. | |
| scrollView.contentSize = CGSize(width:375, height:1857) | |
| // Control a child view controller from a parent. | |
| //////////////////////////////////////////////////////////////////////////////// | |
| // Define the first `[0]` of the child view controllers with the class name | |
| // ChildViewControllerClassName as a variable childVC. | |
| // Won't always need the `self.` | |
| let childVC = self.childViewControllers[0] as! ChildViewControllerClassName | |
| // put `childVC.` before the var you want to control from the child VC. | |
| childVC.thingToControl.alpha = 1 | |
| // Go Back in Code | |
| //////////////////////////////////////////////////////////////////////////////// | |
| // Dismiss a modal | |
| dismissViewControllerAnimated(true, completion: nil) | |
| // Go back in the history stack. | |
| navigationController!.popViewControllerAnimated(true) | |
| // Do stuff when going back to a view | |
| //////////////////////////////////////////////////////////////////////////////// | |
| // viewDidLoad() only runs the first time a view loads. If you push the pop a | |
| // view and want to run some code try viewDidAppear() or viewWillAppear() | |
| override func viewDidAppear(animated: Bool) { | |
| } | |
| // Set scroll position | |
| //////////////////////////////////////////////////////////////////////////////// | |
| let scrollTo = CGPointMake(0.0, 57.0) | |
| scrollView.setContentOffset(scrollTo, animated: true) | |
| // In viewDidLoad() to hide a search bar or something like that. | |
| // Pass a variable on Segue | |
| //////////////////////////////////////////////////////////////////////////////// | |
| // In the view controller that I want to receive the variable, | |
| // set an empty variable and give it a type. | |
| var emptyVariableInDestinationViewController: Bool! | |
| // In Source View Controller | |
| override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) { | |
| // Set the destination view controller name at the end of this line. | |
| let destinationVC = segue.destinationViewController as! DestinationViewControllerClassName | |
| // Give it a value at the end of this line. | |
| destinationVC.emptyVariableInDestinationViewController = thingIWantToSetItTo | |
| } | |
| // Autolayout getting f-d up? | |
| //////////////////////////////////////////////////////////////////////////////// | |
| self.automaticallyAdjustsScrollViewInsets = false | |
| // in view did load |
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