質問編集履歴
4
タイトル：Present → Modal
test
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@@ -1 +1 @@
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-
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1
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Modalの遷移方法をcrossDissolveにするとポップアップの遷移元画面が真っ黒になる
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test
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File without changes
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3
誤字の修正
test
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@@ -1 +1 @@
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-
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1
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Presentの遷移方法をcrossDissolveにするとポップアップの遷移元画面が真っ黒になる
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test
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File without changes
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2
試したことを追加しました。
test
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@@ -1 +1 @@
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Presentの遷移方法をcrossDissolveにするとポップアップの遷移元画面が真っ黒になる
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aｓPresentの遷移方法をcrossDissolveにするとポップアップの遷移元画面が真っ黒になる
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test
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@@ -249,3 +249,13 @@
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249
249
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}
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250
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```
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試したこと
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256
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257
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・modalPresentationStyleをoverCurrentContextにする
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259
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こちらの方法は、ポップアップが全画面表示になってしまい、
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261
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ポップアップとして機能しなくなってしまいます。
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1
コードの追加
test
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File without changes
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test
CHANGED
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@@ -17,3 +17,235 @@
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17
17
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【うまく行かない方：crossDissolve】
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```Swift
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26
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27
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import UIKit
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29
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30
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31
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class ViewController: UIViewController, UIViewControllerTransitioningDelegate {
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34
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override func viewDidLoad() {
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super.viewDidLoad()
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// Do any additional setup after loading the view.
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40
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}
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@IBAction func showModal(_ sender: Any) {
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let modalVC = self.storyboard?.instantiateViewController(identifier: "modal")
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////////////////////////////////////////////////////////////////////////////////////
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modalVC!.modalTransitionStyle = .crossDissolve
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////////////////////////////////////////////////////////////////////////////////////
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56
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57
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modalVC!.modalPresentationStyle = .custom
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modalVC!.transitioningDelegate = self
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present(modalVC!, animated: true, completion: nil)
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}
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68
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func presentationController(forPresented presented: UIViewController, presenting: UIViewController?, source: UIViewController) -> UIPresentationController? {
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return PresentationController(presentedViewController: presented, presenting: presenting)
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}
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}
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//PresentationController.swift
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81
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//import UIKit
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84
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85
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86
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class PresentationController: UIPresentationController {
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// 呼び出し元のView Controller の上に重ねるオーバレイView
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var overlayView = UIView()
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94
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// 表示トランジション開始前に呼ばれる
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override func presentationTransitionWillBegin() {
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guard let containerView = containerView else {
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return
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}
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overlayView.frame = containerView.bounds
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overlayView.gestureRecognizers = [UITapGestureRecognizer(target: self, action: #selector(PresentationController.overlayViewDidTouch(_:)))]
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overlayView.backgroundColor = .black
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overlayView.alpha = 0.0
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containerView.insertSubview(overlayView, at: 0)
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115
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116
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/// ポップアップ元画面の透明度を濁らせる
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presentedViewController.transitionCoordinator?.animate(alongsideTransition: {[weak self] context in
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self?.overlayView.alpha = 0.5
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}, completion:nil)
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}
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// 非表示トランジション開始前に呼ばれる
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override func dismissalTransitionWillBegin() {
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133
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/// ポップアップ元画面の透明度をもとに戻す
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presentedViewController.transitionCoordinator?.animate(alongsideTransition: {[weak self] context in
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136
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self?.overlayView.alpha = 0.0
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}, completion:nil)
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}
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// 非表示トランジション開始後に呼ばれる
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override func dismissalTransitionDidEnd(_ completed: Bool) {
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if completed {
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overlayView.removeFromSuperview()
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}
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}
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// ポップアップのマージン
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let margin = { () -> CGPoint in
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// 端末の画面サイズ
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let screenWidth = Double(UIScreen.main.bounds.size.width)
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let screenHeight = Double(UIScreen.main.bounds.size.height)
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let marginX = screenWidth * 0.13
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let marginY = screenHeight * 0.44
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return CGPoint(x: CGFloat(marginX), y: CGFloat(marginY))
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}
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// 子のコンテナサイズを返す
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override func size(forChildContentContainer container: UIContentContainer, withParentContainerSize parentSize: CGSize) -> CGSize {
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return CGSize(width: parentSize.width - margin().x, height: parentSize.height - margin().y)
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}
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// 呼び出し先のView Controllerのframeを返す
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override var frameOfPresentedViewInContainerView: CGRect {
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var presentedViewFrame = CGRect()
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let containerBounds = containerView!.bounds
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let childContentSize = size(forChildContentContainer: presentedViewController, withParentContainerSize: containerBounds.size)
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presentedViewFrame.size = childContentSize
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presentedViewFrame.origin.x = margin().x / 2.0
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presentedViewFrame.origin.y = margin().y / 2.0
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return presentedViewFrame
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}
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// レイアウト開始前に呼ばれる
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override func containerViewWillLayoutSubviews() {
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overlayView.frame = containerView!.bounds
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presentedView?.frame = frameOfPresentedViewInContainerView
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presentedView?.layer.cornerRadius = 10
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presentedView?.clipsToBounds = true
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}
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// レイアウト開始後に呼ばれる
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override func containerViewDidLayoutSubviews() {
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}
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// overlayViewをタップした時に呼ばれる
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@objc func overlayViewDidTouch(_ sender: UITapGestureRecognizer) {
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243
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/// ポップアップ元画面へ戻る
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244
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245
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presentedViewController.dismiss(animated: true, completion: nil)
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}
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248
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}
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250
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251
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```
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