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// Set light status bar |
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//////////////////////////////////////////////////////////////////////////////// |
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// In the plist file, set `View controller-based status bar appearance` to `NO` |
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// Then in viewDidLoad() |
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UIApplication.sharedApplication().statusBarStyle = .LightContent |
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// Make a scroll view with a big image scroll |
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//////////////////////////////////////////////////////////////////////////////// |
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// Tell the scrollView to be the same size as the imageView. |
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scrollView.contentSize = imageView.frame.size |
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// Or, set it to a pixel size. |
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scrollView.contentSize = CGSize(width:375, height:1857) |
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// Control a child view controller from a parent. |
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//////////////////////////////////////////////////////////////////////////////// |
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// Define the first `[0]` of the child view controllers with the class name |
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// ChildViewControllerClassName as a variable childVC. |
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// Won't always need the `self.` |
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let childVC = self.childViewControllers[0] as! ChildViewControllerClassName |
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// put `childVC.` before the var you want to control from the child VC. |
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childVC.thingToControl.alpha = 1 |
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// Go Back in Code |
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//////////////////////////////////////////////////////////////////////////////// |
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// Dismiss a modal |
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dismissViewControllerAnimated(true, completion: nil) |
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// Go back in the history stack. |
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navigationController!.popViewControllerAnimated(true) |
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// Do stuff when going back to a view |
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//////////////////////////////////////////////////////////////////////////////// |
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// viewDidLoad() only runs the first time a view loads. If you push the pop a |
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// view and want to run some code try viewDidAppear() or viewWillAppear() |
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override func viewDidAppear(animated: Bool) { |
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} |
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// Set scroll position |
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//////////////////////////////////////////////////////////////////////////////// |
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let scrollTo = CGPointMake(0.0, 57.0) |
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scrollView.setContentOffset(scrollTo, animated: true) |
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// In viewDidLoad() to hide a search bar or something like that. |
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// Pass a variable on Segue |
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//////////////////////////////////////////////////////////////////////////////// |
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// In the view controller that I want to receive the variable, |
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// set an empty variable and give it a type. |
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var emptyVariableInDestinationViewController: Bool! |
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// In Source View Controller |
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override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) { |
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// Set the destination view controller name at the end of this line. |
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let destinationVC = segue.destinationViewController as! DestinationViewControllerClassName |
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// Give it a value at the end of this line. |
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destinationVC.emptyVariableInDestinationViewController = thingIWantToSetItTo |
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} |
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// Autolayout getting f-d up? |
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//////////////////////////////////////////////////////////////////////////////// |
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self.automaticallyAdjustsScrollViewInsets = false |
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// in view did load |
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// Get scroll position |
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//////////////////////////////////////////////////////////////////////////////// |
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// See this commit: https://github.com/andytlr/dropbox-carousel/commit/be0ed5dcdc50491995c9e4e1d43e7e21e4ae7dfa |
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// Gesture recognizer stuff |
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//////////////////////////////////////////////////////////////////////////////// |
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// Most common properties in a gesture. These are CGPoints, add .x or .y for axis. |
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let location = sender.locationInView(view) |
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let translation = sender.translationInView(view) |
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let velocity = sender.velocityInView(view) |
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// States (go inside the gesture recognizer method) |
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if sender.state == .Began { |
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// Runs once on start of gesture |
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} |
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if sender.state == .Changed { |
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// Runs constantly as the gesture changes |
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} |
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if sender.state == .Ended { |
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// Runs once when the gesture ends |
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} |
