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Work with UIImagePickerController
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EnderTan authored and EnderTan committed Mar 23, 2017
1 parent 06bec81 commit 9d14978
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Showing 3 changed files with 49 additions and 61 deletions.
4 changes: 2 additions & 2 deletions ETNavBarTransparent.podspec
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Original file line number Diff line number Diff line change
@@ -1,12 +1,12 @@
Pod::Spec.new do |s|
s.name = 'ETNavBarTransparent'
s.version = '1.0.7'
s.version = '1.0.8'
s.license = 'MIT'
s.summary = 'Change NavigationBar‘s transparency at pop gestrue and other situation'
s.homepage = 'https://github.com/EnderTan/ETNavBarTransparent'
s.author = { 'Ender Tan' => '[email protected]' }
s.social_media_url = 'http://weibo.com/endertan'
s.source = { :git => 'https://github.com/EnderTan/ETNavBarTransparent.git', :tag => '1.0.7' }
s.source = { :git => 'https://github.com/EnderTan/ETNavBarTransparent.git', :tag => '1.0.8' }
s.platform = :ios, '8.0'
s.source_files = 'ETNavBarTransparent','ETNavBarTransparent/**/*'
s.requires_arc = true
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106 changes: 47 additions & 59 deletions ETNavBarTransparent/ETNavBarTransparent.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,7 @@ extension UIColor {
extension DispatchQueue {

private static var _onceTracker = [String]()

public class func once(token: String, block: () -> Void) {
objc_sync_enter(self)
defer { objc_sync_exit(self) }
Expand All @@ -34,11 +34,6 @@ extension DispatchQueue {

extension UINavigationController {

open override func viewDidLoad() {
super.viewDidLoad()
delegate = self
}

override open var preferredStatusBarStyle: UIStatusBarStyle {
return topViewController?.preferredStatusBarStyle ?? .default
}
Expand All @@ -55,12 +50,12 @@ extension UINavigationController {
#selector(popToViewController),
#selector(popToRootViewController)
]

for selector in needSwizzleSelectorArr {

let str = ("et_" + selector.description).replacingOccurrences(of: "__", with: "_")
/*
popToRootViewControllerAnimated: et_popToRootViewControllerAnimated:*/
popToRootViewControllerAnimated: et_popToRootViewControllerAnimated:*/

let originalMethod = class_getInstanceMethod(self, selector)
let swizzledMethod = class_getInstanceMethod(self, Selector(str))
Expand All @@ -69,9 +64,9 @@ extension UINavigationController {
}
}
}

func et_updateInteractiveTransition(_ percentComplete: CGFloat) {

guard let topVC = topViewController, let coor = topVC.transitionCoordinator else {
et_updateInteractiveTransition(percentComplete)
return
Expand All @@ -84,17 +79,17 @@ extension UINavigationController {
let fromAlpha = fromVC?.navBarBgAlpha ?? 0
let toAlpha = toVC?.navBarBgAlpha ?? 0
let nowAlpha = fromAlpha + (toAlpha - fromAlpha) * percentComplete

setNeedsNavigationBackground(alpha: nowAlpha)

//tintColor
let fromColor = fromVC?.navBarTintColor ?? .blue
let toColor = toVC?.navBarTintColor ?? .blue
let nowColor = averageColor(fromColor: fromColor, toColor: toColor, percent: percentComplete)
navigationBar.tintColor = nowColor
et_updateInteractiveTransition(percentComplete)
}

//Calculate the middle Color with translation percent
private func averageColor(fromColor:UIColor, toColor:UIColor, percent:CGFloat) -> UIColor {
var fromRed: CGFloat = 0.0
Expand All @@ -108,82 +103,94 @@ extension UINavigationController {
var toBlue: CGFloat = 0.0
var toAlpha: CGFloat = 0.0
toColor.getRed(&toRed, green: &toGreen, blue: &toBlue, alpha: &toAlpha)

let nowRed = fromRed + (toRed - fromRed) * percent
let nowGreen = fromGreen + (toGreen - fromGreen) * percent
let nowBlue = fromBlue + (toBlue - fromBlue) * percent
let nowAlpha = fromAlpha + (toAlpha - fromAlpha) * percent

return UIColor(red: nowRed, green: nowGreen, blue: nowBlue, alpha: nowAlpha)
}

func et_popToViewController(_ viewController: UIViewController, animated: Bool) -> [UIViewController]? {
setNeedsNavigationBackground(alpha: viewController.navBarBgAlpha)
navigationBar.tintColor = viewController.navBarTintColor
return et_popToViewController(viewController, animated: animated)
}

func et_popToRootViewControllerAnimated(_ animated: Bool) -> [UIViewController]? {
setNeedsNavigationBackground(alpha: viewControllers.first?.navBarBgAlpha ?? 0)
navigationBar.tintColor = viewControllers.first?.navBarTintColor
return et_popToRootViewControllerAnimated(animated)
}

fileprivate func setNeedsNavigationBackground(alpha: CGFloat) {

let barBackgroundView = navigationBar.subviews[0]

let valueForKey = barBackgroundView.value(forKey:)

if let shadowView = valueForKey("_shadowView") as? UIView {
shadowView.alpha = alpha
}

if navigationBar.isTranslucent {
if #available(iOS 10.0, *) {
if let backgroundEffectView = valueForKey("_backgroundEffectView") as? UIView, navigationBar.backgroundImage(for: .default) == nil {
backgroundEffectView.alpha = alpha
return
}

} else {
if let adaptiveBackdrop = valueForKey("_adaptiveBackdrop") as? UIView , let backdropEffectView = adaptiveBackdrop.value(forKey: "_backdropEffectView") as? UIView {
backdropEffectView.alpha = alpha
return
}
}
}

barBackgroundView.alpha = alpha
}
}

extension UINavigationController: UINavigationControllerDelegate,UINavigationBarDelegate {
extension UINavigationController: UINavigationBarDelegate {

public func navigationController(_ navigationController: UINavigationController, willShow viewController: UIViewController, animated: Bool) {
guard let topVC = navigationController.topViewController, let coor = topVC.transitionCoordinator else {
return
public func navigationBar(_ navigationBar: UINavigationBar, shouldPop item: UINavigationItem) -> Bool {
if let topVC = topViewController, let coor = topVC.transitionCoordinator, coor.initiallyInteractive {
if #available(iOS 10.0, *) {
coor.notifyWhenInteractionChanges({ (context) in
self.dealInteractionChanges(context)
})
} else {
coor.notifyWhenInteractionEnds({ (context) in
self.dealInteractionChanges(context)
})
}
return true
}

if #available(iOS 10.0, *) {
coor.notifyWhenInteractionChanges({ (context) in
self.dealInteractionChanges(context)
})
} else {
coor.notifyWhenInteractionEnds({ (context) in
self.dealInteractionChanges(context)
})
}
let itemCount = navigationBar.items?.count ?? 0
let n = viewControllers.count >= itemCount ? 2 : 1
let popToVC = viewControllers[viewControllers.count - n]

popToViewController(popToVC, animated: true)
return true
}


public func navigationBar(_ navigationBar: UINavigationBar, shouldPush item: UINavigationItem) -> Bool {
setNeedsNavigationBackground(alpha: topViewController?.navBarBgAlpha ?? 0)
navigationBar.tintColor = topViewController?.navBarTintColor
return true
}

private func dealInteractionChanges(_ context: UIViewControllerTransitionCoordinatorContext) {
let animations: (UITransitionContextViewControllerKey) -> () = {
let nowAlpha = context.viewController(forKey: $0)?.navBarBgAlpha ?? 0
self.setNeedsNavigationBackground(alpha: nowAlpha)

self.navigationBar.tintColor = context.viewController(forKey: $0)?.navBarTintColor
}

if context.isCancelled {
let cancellDuration: TimeInterval = context.transitionDuration * Double(context.percentComplete)
UIView.animate(withDuration: cancellDuration, animations: {
Expand All @@ -196,25 +203,6 @@ extension UINavigationController: UINavigationControllerDelegate,UINavigationBar
})
}
}

public func navigationBar(_ navigationBar: UINavigationBar, shouldPop item: UINavigationItem) -> Bool {
if let topVC = topViewController, let coor = topVC.transitionCoordinator, coor.initiallyInteractive {
return true
}

let itemCount = navigationBar.items?.count ?? 0
let n = viewControllers.count >= itemCount ? 2 : 1
let popToVC = viewControllers[viewControllers.count - n]

popToViewController(popToVC, animated: true)
return true
}

public func navigationBar(_ navigationBar: UINavigationBar, shouldPush item: UINavigationItem) -> Bool {
setNeedsNavigationBackground(alpha: topViewController?.navBarBgAlpha ?? 0)
navigationBar.tintColor = topViewController?.navBarTintColor
return true
}
}

extension UIViewController {
Expand All @@ -234,14 +222,14 @@ extension UIViewController {
}
set {
let alpha = max(min(newValue, 1), 0) // 必须在 0~1的范围

objc_setAssociatedObject(self, &AssociatedKeys.navBarBgAlpha, alpha, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)

//Update UI
navigationController?.setNeedsNavigationBackground(alpha: alpha)
}
}

open var navBarTintColor: UIColor {
get {
guard let tintColor = objc_getAssociatedObject(self, &AssociatedKeys.navBarTintColor) as? UIColor else {
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Binary file modified ....xcodeproj/project.xcworkspace/xcuserdata/bing.xcuserdatad/UserInterfaceState.xcuserstate
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