//
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// IQKeyboardManager+Position.swift
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// https://github.com/hackiftekhar/IQKeyboardManager
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// Copyright (c) 2013-20 Iftekhar Qurashi.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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// import Foundation - UIKit contains Foundation
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import UIKit
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@available(iOSApplicationExtension, unavailable)
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public extension IQKeyboardManager {
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private struct AssociatedKeys {
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static var movedDistance: Int = 0
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static var movedDistanceChanged: Int = 0
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static var lastScrollView: Int = 0
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static var startingContentOffset: Int = 0
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static var startingScrollIndicatorInsets: Int = 0
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static var startingContentInsets: Int = 0
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static var startingTextViewContentInsets: Int = 0
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static var startingTextViewScrollIndicatorInsets: Int = 0
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static var isTextViewContentInsetChanged: Int = 0
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}
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/**
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moved distance to the top used to maintain distance between keyboard and textField. Most of the time this will be a positive value.
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*/
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@objc private(set) var movedDistance: CGFloat {
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get {
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return objc_getAssociatedObject(self, &AssociatedKeys.movedDistance) as? CGFloat ?? 0.0
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}
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set(newValue) {
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objc_setAssociatedObject(self, &AssociatedKeys.movedDistance, newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
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movedDistanceChanged?(movedDistance)
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}
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}
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/**
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Will be called then movedDistance will be changed
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*/
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@objc var movedDistanceChanged: ((CGFloat) -> Void)? {
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get {
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return objc_getAssociatedObject(self, &AssociatedKeys.movedDistanceChanged) as? ((CGFloat) -> Void)
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}
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set(newValue) {
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objc_setAssociatedObject(self, &AssociatedKeys.movedDistanceChanged, newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
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movedDistanceChanged?(movedDistance)
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}
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}
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/** Variable to save lastScrollView that was scrolled. */
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internal weak var lastScrollView: UIScrollView? {
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get {
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return (objc_getAssociatedObject(self, &AssociatedKeys.lastScrollView) as? WeakObjectContainer)?.object as? UIScrollView
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}
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set(newValue) {
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objc_setAssociatedObject(self, &AssociatedKeys.lastScrollView, WeakObjectContainer(object: newValue), .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
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}
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}
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/** LastScrollView's initial contentOffset. */
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internal var startingContentOffset: CGPoint {
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get {
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return objc_getAssociatedObject(self, &AssociatedKeys.startingContentOffset) as? CGPoint ?? IQKeyboardManager.kIQCGPointInvalid
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}
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set(newValue) {
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objc_setAssociatedObject(self, &AssociatedKeys.startingContentOffset, newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
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}
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}
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/** LastScrollView's initial scrollIndicatorInsets. */
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internal var startingScrollIndicatorInsets: UIEdgeInsets {
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get {
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return objc_getAssociatedObject(self, &AssociatedKeys.startingScrollIndicatorInsets) as? UIEdgeInsets ?? .init()
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}
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set(newValue) {
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objc_setAssociatedObject(self, &AssociatedKeys.startingScrollIndicatorInsets, newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
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}
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}
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/** LastScrollView's initial contentInsets. */
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internal var startingContentInsets: UIEdgeInsets {
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get {
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return objc_getAssociatedObject(self, &AssociatedKeys.startingContentInsets) as? UIEdgeInsets ?? .init()
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}
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set(newValue) {
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objc_setAssociatedObject(self, &AssociatedKeys.startingContentInsets, newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
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}
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}
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/** used to adjust contentInset of UITextView. */
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internal var startingTextViewContentInsets: UIEdgeInsets {
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get {
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return objc_getAssociatedObject(self, &AssociatedKeys.startingTextViewContentInsets) as? UIEdgeInsets ?? .init()
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}
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set(newValue) {
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objc_setAssociatedObject(self, &AssociatedKeys.startingTextViewContentInsets, newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
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}
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}
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/** used to adjust scrollIndicatorInsets of UITextView. */
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internal var startingTextViewScrollIndicatorInsets: UIEdgeInsets {
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get {
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return objc_getAssociatedObject(self, &AssociatedKeys.startingTextViewScrollIndicatorInsets) as? UIEdgeInsets ?? .init()
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}
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set(newValue) {
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objc_setAssociatedObject(self, &AssociatedKeys.startingTextViewScrollIndicatorInsets, newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
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}
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}
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/** used with textView to detect a textFieldView contentInset is changed or not. (Bug ID: #92)*/
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internal var isTextViewContentInsetChanged: Bool {
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get {
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return objc_getAssociatedObject(self, &AssociatedKeys.isTextViewContentInsetChanged) as? Bool ?? false
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}
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set(newValue) {
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objc_setAssociatedObject(self, &AssociatedKeys.isTextViewContentInsetChanged, newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
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}
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}
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@objc internal func applicationDidBecomeActive(_ notificatin: Notification) {
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guard privateIsEnabled(),
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keyboardShowing,
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topViewBeginOrigin.equalTo(IQKeyboardManager.kIQCGPointInvalid) == false, let textFieldView = textFieldView,
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textFieldView.isAlertViewTextField() == false else {
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return
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}
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self.adjustPosition()
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}
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// swiftlint:disable function_body_length
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/* Adjusting RootViewController's frame according to interface orientation. */
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internal func adjustPosition() {
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// We are unable to get textField object while keyboard showing on WKWebView's textField. (Bug ID: #11)
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guard UIApplication.shared.applicationState == .active,
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let textFieldView = textFieldView,
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let rootController = textFieldView.parentContainerViewController(),
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let window = keyWindow(),
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let textFieldViewRectInWindow = textFieldView.superview?.convert(textFieldView.frame, to: window),
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let textFieldViewRectInRootSuperview = textFieldView.superview?.convert(textFieldView.frame, to: rootController.view?.superview) else {
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return
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}
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let startTime = CACurrentMediaTime()
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showLog(">>>>> \(#function) started >>>>>", indentation: 1)
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// Getting RootViewOrigin.
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var rootViewOrigin = rootController.view.frame.origin
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// Maintain keyboardDistanceFromTextField
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let specialKeyboardDistanceFromTextField: CGFloat
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if let searchBar = textFieldView.textFieldSearchBar() {
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specialKeyboardDistanceFromTextField = searchBar.keyboardDistanceFromTextField
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} else {
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specialKeyboardDistanceFromTextField = textFieldView.keyboardDistanceFromTextField
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}
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let newKeyboardDistanceFromTextField = (specialKeyboardDistanceFromTextField == kIQUseDefaultKeyboardDistance) ? keyboardDistanceFromTextField : specialKeyboardDistanceFromTextField
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let kbSize: CGSize
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let originalKbSize: CGSize
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// Calculating actual keyboard covered size respect to window, keyboard frame may be different when hardware keyboard is attached (Bug ID: #469) (Bug ID: #381) (Bug ID: #1506)
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do {
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var kbFrame = keyboardFrame
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kbFrame.origin.y -= newKeyboardDistanceFromTextField
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kbFrame.size.height += newKeyboardDistanceFromTextField
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kbFrame.origin.y -= topViewBeginSafeAreaInsets.bottom
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kbFrame.size.height += topViewBeginSafeAreaInsets.bottom
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let intersectRect = kbFrame.intersection(window.frame)
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if intersectRect.isNull {
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kbSize = CGSize(width: kbFrame.size.width, height: 0)
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} else {
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kbSize = intersectRect.size
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}
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}
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do {
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let intersectRect = keyboardFrame.intersection(window.frame)
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if intersectRect.isNull {
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originalKbSize = CGSize(width: keyboardFrame.size.width, height: 0)
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} else {
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originalKbSize = intersectRect.size
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}
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}
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let statusBarHeight: CGFloat
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let navigationBarAreaHeight: CGFloat
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if let navigationController = rootController.navigationController {
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navigationBarAreaHeight = navigationController.navigationBar.frame.maxY
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} else {
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#if swift(>=5.1)
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if #available(iOS 13, *) {
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statusBarHeight = window.windowScene?.statusBarManager?.statusBarFrame.height ?? 0
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} else {
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statusBarHeight = UIApplication.shared.statusBarFrame.height
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}
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#else
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statusBarHeight = UIApplication.shared.statusBarFrame.height
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#endif
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navigationBarAreaHeight = statusBarHeight
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}
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let layoutAreaHeight: CGFloat = rootController.view.directionalLayoutMargins.top
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let isScrollableTextView: Bool
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if let textView = textFieldView as? UIScrollView, textFieldView.responds(to: #selector(getter: UITextView.isEditable)) {
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isScrollableTextView = textView.isScrollEnabled
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} else {
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isScrollableTextView = false
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}
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let topLayoutGuide: CGFloat = max(navigationBarAreaHeight, layoutAreaHeight)
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// Validation of textView for case where there is a tab bar at the bottom or running on iPhone X and textView is at the bottom.
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let bottomLayoutGuide: CGFloat = isScrollableTextView ? 0 : rootController.view.directionalLayoutMargins.bottom
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// Move positive = textField is hidden.
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// Move negative = textField is showing.
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// Calculating move position.
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var moveUp: CGFloat
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do {
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let visibleHeight: CGFloat = window.frame.height-kbSize.height
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let topMovement: CGFloat = textFieldViewRectInRootSuperview.minY-topLayoutGuide
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let bottomMovement: CGFloat = textFieldViewRectInWindow.maxY - visibleHeight + bottomLayoutGuide
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moveUp = min(topMovement, bottomMovement)
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}
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showLog("Need to move: \(moveUp), will be moving \(moveUp < 0 ? "down" : "up")")
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var superScrollView: UIScrollView?
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var superView = textFieldView.superviewOfClassType(UIScrollView.self) as? UIScrollView
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// Getting UIScrollView whose scrolling is enabled. // (Bug ID: #285)
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while let view = superView {
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if view.isScrollEnabled, !view.shouldIgnoreScrollingAdjustment {
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superScrollView = view
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break
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} else {
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// Getting it's superScrollView. // (Enhancement ID: #21, #24)
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superView = view.superviewOfClassType(UIScrollView.self) as? UIScrollView
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}
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}
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// If there was a lastScrollView. // (Bug ID: #34)
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if let lastScrollView = lastScrollView {
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// If we can't find current superScrollView, then setting lastScrollView to it's original form.
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if superScrollView == nil {
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if lastScrollView.contentInset != self.startingContentInsets {
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showLog("Restoring contentInset to: \(startingContentInsets)")
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UIView.animate(withDuration: animationDuration, delay: 0, options: animationCurve, animations: { () -> Void in
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lastScrollView.contentInset = self.startingContentInsets
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lastScrollView.scrollIndicatorInsets = self.startingScrollIndicatorInsets
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})
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}
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if lastScrollView.shouldRestoreScrollViewContentOffset, !lastScrollView.contentOffset.equalTo(startingContentOffset) {
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showLog("Restoring contentOffset to: \(startingContentOffset)")
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let animatedContentOffset = textFieldView.superviewOfClassType(UIStackView.self, belowView: lastScrollView) != nil // (Bug ID: #1365, #1508, #1541)
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if animatedContentOffset {
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lastScrollView.setContentOffset(startingContentOffset, animated: UIView.areAnimationsEnabled)
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} else {
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lastScrollView.contentOffset = startingContentOffset
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}
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}
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startingContentInsets = .zero
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startingScrollIndicatorInsets = .zero
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startingContentOffset = .zero
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self.lastScrollView = nil
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} else if superScrollView != lastScrollView { // If both scrollView's are different, then reset lastScrollView to it's original frame and setting current scrollView as last scrollView.
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if lastScrollView.contentInset != self.startingContentInsets {
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showLog("Restoring contentInset to: \(startingContentInsets)")
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UIView.animate(withDuration: animationDuration, delay: 0, options: animationCurve, animations: { () -> Void in
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lastScrollView.contentInset = self.startingContentInsets
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lastScrollView.scrollIndicatorInsets = self.startingScrollIndicatorInsets
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})
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}
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if lastScrollView.shouldRestoreScrollViewContentOffset, !lastScrollView.contentOffset.equalTo(startingContentOffset) {
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showLog("Restoring contentOffset to: \(startingContentOffset)")
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let animatedContentOffset = textFieldView.superviewOfClassType(UIStackView.self, belowView: lastScrollView) != nil // (Bug ID: #1365, #1508, #1541)
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if animatedContentOffset {
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lastScrollView.setContentOffset(startingContentOffset, animated: UIView.areAnimationsEnabled)
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} else {
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lastScrollView.contentOffset = startingContentOffset
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}
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}
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self.lastScrollView = superScrollView
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if let scrollView = superScrollView {
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startingContentInsets = scrollView.contentInset
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startingContentOffset = scrollView.contentOffset
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#if swift(>=5.1)
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if #available(iOS 11.1, *) {
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startingScrollIndicatorInsets = scrollView.verticalScrollIndicatorInsets
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} else {
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startingScrollIndicatorInsets = scrollView.scrollIndicatorInsets
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}
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#else
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startingScrollIndicatorInsets = scrollView.scrollIndicatorInsets
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#endif
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}
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showLog("Saving ScrollView New contentInset: \(startingContentInsets) and contentOffset: \(startingContentOffset)")
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}
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// Else the case where superScrollView == lastScrollView means we are on same scrollView after switching to different textField. So doing nothing, going ahead
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} else if let unwrappedSuperScrollView = superScrollView { // If there was no lastScrollView and we found a current scrollView. then setting it as lastScrollView.
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lastScrollView = unwrappedSuperScrollView
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startingContentInsets = unwrappedSuperScrollView.contentInset
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startingContentOffset = unwrappedSuperScrollView.contentOffset
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#if swift(>=5.1)
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if #available(iOS 11.1, *) {
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startingScrollIndicatorInsets = unwrappedSuperScrollView.verticalScrollIndicatorInsets
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} else {
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startingScrollIndicatorInsets = unwrappedSuperScrollView.scrollIndicatorInsets
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}
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#else
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startingScrollIndicatorInsets = unwrappedSuperScrollView.scrollIndicatorInsets
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#endif
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showLog("Saving ScrollView contentInset: \(startingContentInsets) and contentOffset: \(startingContentOffset)")
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}
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// Special case for ScrollView.
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// If we found lastScrollView then setting it's contentOffset to show textField.
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if let lastScrollView = lastScrollView {
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// Saving
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var lastView = textFieldView
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var superScrollView = self.lastScrollView
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while let scrollView = superScrollView {
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var shouldContinue = false
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if moveUp > 0 {
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shouldContinue = moveUp > (-scrollView.contentOffset.y - scrollView.contentInset.top)
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} else if let tableView = scrollView.superviewOfClassType(UITableView.self) as? UITableView {
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// Special treatment for UITableView due to their cell reusing logic
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shouldContinue = scrollView.contentOffset.y > 0
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if shouldContinue, let tableCell = textFieldView.superviewOfClassType(UITableViewCell.self) as? UITableViewCell, let indexPath = tableView.indexPath(for: tableCell), let previousIndexPath = tableView.previousIndexPath(of: indexPath) {
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let previousCellRect = tableView.rectForRow(at: previousIndexPath)
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if !previousCellRect.isEmpty {
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let previousCellRectInRootSuperview = tableView.convert(previousCellRect, to: rootController.view.superview)
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moveUp = min(0, previousCellRectInRootSuperview.maxY - topLayoutGuide)
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}
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}
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} else if let collectionView = scrollView.superviewOfClassType(UICollectionView.self) as? UICollectionView {
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// Special treatment for UITableView due to their cell reusing logic
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shouldContinue = scrollView.contentOffset.y > 0
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if shouldContinue, let collectionCell = textFieldView.superviewOfClassType(UICollectionViewCell.self) as? UICollectionViewCell, let indexPath = collectionView.indexPath(for: collectionCell), let previousIndexPath = collectionView.previousIndexPath(of: indexPath), let attributes = collectionView.layoutAttributesForItem(at: previousIndexPath) {
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let previousCellRect = attributes.frame
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if !previousCellRect.isEmpty {
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let previousCellRectInRootSuperview = collectionView.convert(previousCellRect, to: rootController.view.superview)
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moveUp = min(0, previousCellRectInRootSuperview.maxY - topLayoutGuide)
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}
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}
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} else {
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shouldContinue = textFieldViewRectInRootSuperview.minY < topLayoutGuide
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if shouldContinue {
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moveUp = min(0, textFieldViewRectInRootSuperview.minY - topLayoutGuide)
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}
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}
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// Looping in upper hierarchy until we don't found any scrollView in it's upper hirarchy till UIWindow object.
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if shouldContinue {
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var tempScrollView = scrollView.superviewOfClassType(UIScrollView.self) as? UIScrollView
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var nextScrollView: UIScrollView?
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while let view = tempScrollView {
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if view.isScrollEnabled, !view.shouldIgnoreScrollingAdjustment {
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nextScrollView = view
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break
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} else {
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tempScrollView = view.superviewOfClassType(UIScrollView.self) as? UIScrollView
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}
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}
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// Getting lastViewRect.
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if let lastViewRect = lastView.superview?.convert(lastView.frame, to: scrollView) {
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// Calculating the expected Y offset from move and scrollView's contentOffset.
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var shouldOffsetY = scrollView.contentOffset.y - min(scrollView.contentOffset.y, -moveUp)
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// Rearranging the expected Y offset according to the view.
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shouldOffsetY = min(shouldOffsetY, lastViewRect.minY)
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// [_textFieldView isKindOfClass:[UITextView class]] If is a UITextView type
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// nextScrollView == nil If processing scrollView is last scrollView in upper hierarchy (there is no other scrollView upper hierrchy.)
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// [_textFieldView isKindOfClass:[UITextView class]] If is a UITextView type
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// shouldOffsetY >= 0 shouldOffsetY must be greater than in order to keep distance from navigationBar (Bug ID: #92)
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if isScrollableTextView,
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nextScrollView == nil,
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shouldOffsetY >= 0 {
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// Converting Rectangle according to window bounds.
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if let currentTextFieldViewRect = textFieldView.superview?.convert(textFieldView.frame, to: window) {
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// Calculating expected fix distance which needs to be managed from navigation bar
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let expectedFixDistance: CGFloat = currentTextFieldViewRect.minY - topLayoutGuide
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// Now if expectedOffsetY (superScrollView.contentOffset.y + expectedFixDistance) is lower than current shouldOffsetY, which means we're in a position where navigationBar up and hide, then reducing shouldOffsetY with expectedOffsetY (superScrollView.contentOffset.y + expectedFixDistance)
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shouldOffsetY = min(shouldOffsetY, scrollView.contentOffset.y + expectedFixDistance)
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// Setting move to 0 because now we don't want to move any view anymore (All will be managed by our contentInset logic.
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moveUp = 0
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} else {
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// Subtracting the Y offset from the move variable, because we are going to change scrollView's contentOffset.y to shouldOffsetY.
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moveUp -= (shouldOffsetY-scrollView.contentOffset.y)
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}
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} else {
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// Subtracting the Y offset from the move variable, because we are going to change scrollView's contentOffset.y to shouldOffsetY.
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moveUp -= (shouldOffsetY-scrollView.contentOffset.y)
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}
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let newContentOffset = CGPoint(x: scrollView.contentOffset.x, y: shouldOffsetY)
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if scrollView.contentOffset.equalTo(newContentOffset) == false {
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showLog("old contentOffset: \(scrollView.contentOffset) new contentOffset: \(newContentOffset)")
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self.showLog("Remaining Move: \(moveUp)")
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// Getting problem while using `setContentOffset:animated:`, So I used animation API.
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UIView.animate(withDuration: animationDuration, delay: 0, options: animationCurve, animations: { () -> Void in
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let animatedContentOffset = textFieldView.superviewOfClassType(UIStackView.self, belowView: scrollView) != nil // (Bug ID: #1365, #1508, #1541)
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if animatedContentOffset {
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scrollView.setContentOffset(newContentOffset, animated: UIView.areAnimationsEnabled)
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} else {
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scrollView.contentOffset = newContentOffset
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}
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}, completion: { _ in
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if scrollView is UITableView || scrollView is UICollectionView {
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// This will update the next/previous states
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self.addToolbarIfRequired()
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}
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})
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}
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}
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// Getting next lastView & superScrollView.
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lastView = scrollView
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superScrollView = nextScrollView
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} else {
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moveUp = 0
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break
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}
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}
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// Updating contentInset
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if let lastScrollViewRect = lastScrollView.superview?.convert(lastScrollView.frame, to: window),
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lastScrollView.shouldIgnoreContentInsetAdjustment == false {
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var bottomInset: CGFloat = (kbSize.height)-(window.frame.height-lastScrollViewRect.maxY)
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var bottomScrollIndicatorInset = bottomInset - newKeyboardDistanceFromTextField - topViewBeginSafeAreaInsets.bottom
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// Update the insets so that the scroll vew doesn't shift incorrectly when the offset is near the bottom of the scroll view.
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bottomInset = max(startingContentInsets.bottom, bottomInset)
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bottomScrollIndicatorInset = max(startingScrollIndicatorInsets.bottom, bottomScrollIndicatorInset)
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bottomInset -= lastScrollView.safeAreaInsets.bottom
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bottomScrollIndicatorInset -= lastScrollView.safeAreaInsets.bottom
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var movedInsets = lastScrollView.contentInset
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movedInsets.bottom = bottomInset
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if lastScrollView.contentInset != movedInsets {
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showLog("old ContentInset: \(lastScrollView.contentInset) new ContentInset: \(movedInsets)")
|
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UIView.animate(withDuration: animationDuration, delay: 0, options: animationCurve, animations: { () -> Void in
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lastScrollView.contentInset = movedInsets
|
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var newScrollIndicatorInset: UIEdgeInsets
|
|
#if swift(>=5.1)
|
if #available(iOS 11.1, *) {
|
newScrollIndicatorInset = lastScrollView.verticalScrollIndicatorInsets
|
} else {
|
newScrollIndicatorInset = lastScrollView.scrollIndicatorInsets
|
}
|
#else
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newScrollIndicatorInset = lastScrollView.scrollIndicatorInsets
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#endif
|
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newScrollIndicatorInset.bottom = bottomScrollIndicatorInset
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lastScrollView.scrollIndicatorInsets = newScrollIndicatorInset
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})
|
}
|
}
|
}
|
// Going ahead. No else if.
|
|
// Special case for UITextView(Readjusting textView.contentInset when textView hight is too big to fit on screen)
|
// _lastScrollView If not having inside any scrollView, (now contentInset manages the full screen textView.
|
// [_textFieldView isKindOfClass:[UITextView class]] If is a UITextView type
|
if isScrollableTextView, let textView = textFieldView as? UIScrollView {
|
|
let keyboardYPosition = window.frame.height - originalKbSize.height
|
var rootSuperViewFrameInWindow = window.frame
|
if let rootSuperview = rootController.view.superview {
|
rootSuperViewFrameInWindow = rootSuperview.convert(rootSuperview.bounds, to: window)
|
}
|
|
let keyboardOverlapping = rootSuperViewFrameInWindow.maxY - keyboardYPosition
|
|
let textViewHeight = min(textView.frame.height, rootSuperViewFrameInWindow.height-topLayoutGuide-keyboardOverlapping)
|
|
if textView.frame.size.height-textView.contentInset.bottom>textViewHeight {
|
// _isTextViewContentInsetChanged, If frame is not change by library in past, then saving user textView properties (Bug ID: #92)
|
if !self.isTextViewContentInsetChanged {
|
self.startingTextViewContentInsets = textView.contentInset
|
|
#if swift(>=5.1)
|
if #available(iOS 11.1, *) {
|
self.startingTextViewScrollIndicatorInsets = textView.verticalScrollIndicatorInsets
|
} else {
|
self.startingTextViewScrollIndicatorInsets = textView.scrollIndicatorInsets
|
}
|
#else
|
self.startingTextViewScrollIndicatorInsets = textView.scrollIndicatorInsets
|
#endif
|
}
|
|
self.isTextViewContentInsetChanged = true
|
|
var newContentInset = textView.contentInset
|
newContentInset.bottom = textView.frame.size.height-textViewHeight
|
newContentInset.bottom -= textView.safeAreaInsets.bottom
|
|
if textView.contentInset != newContentInset {
|
self.showLog("\(textFieldView) Old UITextView.contentInset: \(textView.contentInset) New UITextView.contentInset: \(newContentInset)")
|
|
UIView.animate(withDuration: animationDuration, delay: 0, options: animationCurve, animations: { () -> Void in
|
|
textView.contentInset = newContentInset
|
textView.scrollIndicatorInsets = newContentInset
|
}, completion: { (_) -> Void in })
|
}
|
}
|
}
|
|
// +Positive or zero.
|
if moveUp >= 0 {
|
|
rootViewOrigin.y = max(rootViewOrigin.y - moveUp, min(0, -originalKbSize.height))
|
|
if rootController.view.frame.origin.equalTo(rootViewOrigin) == false {
|
showLog("Moving Upward")
|
|
UIView.animate(withDuration: animationDuration, delay: 0, options: animationCurve, animations: { () -> Void in
|
|
var rect = rootController.view.frame
|
rect.origin = rootViewOrigin
|
rootController.view.frame = rect
|
|
// Animating content if needed (Bug ID: #204)
|
if self.layoutIfNeededOnUpdate {
|
// Animating content (Bug ID: #160)
|
rootController.view.setNeedsLayout()
|
rootController.view.layoutIfNeeded()
|
}
|
|
self.showLog("Set \(rootController) origin to: \(rootViewOrigin)")
|
})
|
}
|
|
movedDistance = (topViewBeginOrigin.y-rootViewOrigin.y)
|
} else { // -Negative
|
let disturbDistance: CGFloat = rootViewOrigin.y-topViewBeginOrigin.y
|
|
// disturbDistance Negative = frame disturbed.
|
// disturbDistance positive = frame not disturbed.
|
if disturbDistance <= 0 {
|
|
rootViewOrigin.y -= max(moveUp, disturbDistance)
|
|
if rootController.view.frame.origin.equalTo(rootViewOrigin) == false {
|
showLog("Moving Downward")
|
// Setting adjusted rootViewRect
|
// Setting adjusted rootViewRect
|
|
UIView.animate(withDuration: animationDuration, delay: 0, options: animationCurve, animations: { () -> Void in
|
|
var rect = rootController.view.frame
|
rect.origin = rootViewOrigin
|
rootController.view.frame = rect
|
|
// Animating content if needed (Bug ID: #204)
|
if self.layoutIfNeededOnUpdate {
|
// Animating content (Bug ID: #160)
|
rootController.view.setNeedsLayout()
|
rootController.view.layoutIfNeeded()
|
}
|
|
self.showLog("Set \(rootController) origin to: \(rootViewOrigin)")
|
})
|
}
|
|
movedDistance = (topViewBeginOrigin.y-rootViewOrigin.y)
|
}
|
}
|
|
let elapsedTime = CACurrentMediaTime() - startTime
|
showLog("<<<<< \(#function) ended: \(elapsedTime) seconds <<<<<", indentation: -1)
|
}
|
// swiftlint:enable function_body_length
|
|
internal func restorePosition() {
|
|
// Setting rootViewController frame to it's original position. // (Bug ID: #18)
|
guard topViewBeginOrigin.equalTo(IQKeyboardManager.kIQCGPointInvalid) == false, let rootViewController = rootViewController else {
|
return
|
}
|
|
if rootViewController.view.frame.origin.equalTo(self.topViewBeginOrigin) == false {
|
// Used UIViewAnimationOptionBeginFromCurrentState to minimize strange animations.
|
UIView.animate(withDuration: animationDuration, delay: 0, options: animationCurve, animations: { () -> Void in
|
|
// Setting it's new frame
|
var rect = rootViewController.view.frame
|
rect.origin = self.topViewBeginOrigin
|
rootViewController.view.frame = rect
|
|
// Animating content if needed (Bug ID: #204)
|
if self.layoutIfNeededOnUpdate {
|
// Animating content (Bug ID: #160)
|
rootViewController.view.setNeedsLayout()
|
rootViewController.view.layoutIfNeeded()
|
}
|
|
self.showLog("Restoring \(rootViewController) origin to: \(self.topViewBeginOrigin)")
|
})
|
}
|
|
self.movedDistance = 0
|
|
if rootViewController.navigationController?.interactivePopGestureRecognizer?.state == .began {
|
self.rootViewControllerWhilePopGestureRecognizerActive = rootViewController
|
self.topViewBeginOriginWhilePopGestureRecognizerActive = self.topViewBeginOrigin
|
}
|
|
self.rootViewController = nil
|
}
|
}
|
