带有UITableView的contentView不在UIScrollView中滚动 [英] contentView with UITableView not scrolling within UIScrollView
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问题描述
我正在创建一个包含许多字段的简单创建个人资料".尽管内容大于滚动视图的大小，但我的视图仍未滚动.我认为部分问题是contentView内部内容之间的关系.我希望表格视图内的单元格是动态的，以便以后可以添加更多信息，并且滚动仍会执行.我在 viewDidLoad()
我查看了其他答案，并尝试将其实现无效.我引用了
这是实际结果:
我认为问题是错误标签对表视图的约束没有被更新，但是我在这里没有看到什么吗?顶部栏下方的所有内容均应滚动.
解决方案
这里是一个基本示例，它使用自我调整大小"表视图.不需要 heightForRowAt 或 .contentSize 的显式设置-全部由自动布局和约束处理.
有几行(无滚动):
还有几行(仍然没有滚动):
现在有了足够的行，我们 需要 滚动:
这是在IB/故事板中的设置方式:
这是源代码:
////DaveViewController.swift////由Don Mag在19年7月1日创建.//导入UIKit最后一课ContentSizedTableView:UITableView {覆盖var contentSize:CGSize {didSet {invalidateIntrinsicContentSize()}}覆盖var internalContentSize:CGSize {layoutIfNeeded()返回CGSize(width:UIView.noIntrinsicMetric，height:contentSize.height)}}类DaveCell:UITableViewCell {@IBOutlet var theLabel:UILabel！@IBOutlet var theTextField:UITextField！}DaveViewController类:UIViewController {@IBOutlet var theTableView:ContentSizedTableView！@IBOutlet var theScrollView:UIScrollView！让theLabels:[字符串] = [名称"，公司"，位置"，市，州"，电子邮件地址"，"ADDTL EMAIL \ nADDRESS"，工作编号"，细胞数量"，]让占位符:[String] = [你的名字"，例如Bizee Inc."，例如区域经理"，例如科罗拉多州的丹佛"，"name@email.com"，"name@email.com"，(XXX)XXX-XXXX"，(XXX)XXX-XXXX"，]覆盖func viewDidLoad(){super.viewDidLoad()theTableView.dataSource =自我theTableView.delegate =自我theTableView.isScrollEnabled = falseNotificationCenter.default.addObserver(自身，选择器:#selector(keyboardWillShow)，名称:UIResponder.keyboardWillShowNotification，对象:nil)NotificationCenter.default.addObserver(自身，选择器:#selector(keyboardWillHide)，名称:UIResponder.keyboardWillHideNotification，对象:nil)//添加完成"按钮以关闭键盘让doneBtn = UIBarButtonItem(barButtonSystemItem:.done，目标:自我，行动:#selector(doneTapped))self.navigationItem.rightBarButtonItem = doneBtn}@objc私人功能doneTapped(){view.endEditing(true)}@objc私人函式keyboardWillShow(通知:NSNotification){守卫让keyboardFrame = notification.userInfo！[UIResponder.keyboardFrameEndUserInfoKey]为?NSValue else {返回}theScrollView.contentInset.bottom = view.convert(keyboardFrame.cgRectValue，from:nil).size.height}@objc私人函式keyboardWillHide(通知:NSNotification){theScrollView.contentInset.bottom = 0}}扩展名DaveViewController:UITableViewDataSource，UITableViewDelegate {func numberOfSections(在tableView中:UITableView)->诠释{返回1}func tableView(_ tableView:UITableView，numberOfRowsInSection部分:Int)->诠释{返回theLabels.count}func tableView(_ tableView:UITableView，cellForRowAt indexPath:IndexPath)->UITableViewCell {让cell = tableView.dequeueReusableCell(withIdentifier:"DaveCell"，for:indexPath)为！DaveCellcell.theLabel.text = theLabels [indexPath.row]cell.theTextField.placeholder =占位符[indexPath.row]cell.selectionStyle = .none返回单元}} 这是情节提要的源代码:
<?xml version ="1.0" encoding ="UTF-8"?>< document type ="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version ="3.0" toolsVersion ="14460.31" targetRuntime ="iOS.CocoaTouch" propertyAccessControl ="none" useAutolayout ="YES" useTraitCollections ="YES"useSafeAreas ="YES" colorMatched ="YES" initialViewController ="OCG-fk-O07">< device id ="retina4_7" direction ="portrait">< adaptation id ="fullscreen"/></device><依赖关系>< deployment identifier ="iOS"/>< plugIn标识符="com.apple.InterfaceBuilder.IBCocoaTouchPlugin"版本="14460.20"/>< capability name =安全区域布局指南" minToolsVersion ="9.0"/>< capability name =以Xcode 8格式保存的文档" minToolsVersion ="8.0"/></dependencies><场景><！-Dave View Controller-><场景sceneID ="gYy-6C-Ilo">< objects>< viewController id ="ByF-jo-q34" customClass ="DaveViewController" customModule ="LaunchTest2" customModuleProvider ="target" sceneMemberID ="viewController">< view key ="view" contentMode ="scaleToFill" id ="KzY-ir-ZNp">< rect key ="frame" x ="0.0" y ="0.0" width ="375" height ="667"/>< autoresizingMask key ="autoresizingMask" widthSizable ="YES" heightSizable ="YES"/>< subviews>< scrollView clipsSubviews ="YES" multipleTouchEnabled ="YES" contentMode ="scaleToFill"翻译成AutoresizingMaskIntoConstraints ="NO" id ="sfU-bN-guh">< rect key ="frame" x ="0.0" y ="64" width ="375" height ="603"/>< subviews>< view contentMode ="scaleToFill" translationsAutoresizingMaskIntoConstraints ="NO" id ="SCY-zE-Vif">< rect key ="frame" x ="0.0" y ="0.0" width ="375" height ="603"/>< subviews>< label opaque ="NO" userInteractionEnabled =否" contentMode ="left" horizontalHuggingPriority ="251" verticalHuggingPriority ="251" text =使用LinkedIn导入" textAlignment ="center" lineBreakMode ="tailTruncation"基线Adjustment ="alignBaselines"AdjustsFontSizeToFit =否" translationsAutoresizingMaskIntoConstraints =否" id ="kg2-26-RDd">< rect key ="frame" x ="104" y ="12" width ="167.5" height ="20.5"/>< color key ="backgroundColor" white ="1" alpha ="1" colorSpace ="custom" customColorSpace ="genericGamma22GrayColorSpace"/>< fontDescription key ="fontDescription" type ="system" pointSize ="17"/>< nil key ="textColor"/>< nil key ="highlightedColor"/></label>< view contentMode ="scaleToFill" translationsAutoresizingMaskIntoConstraints ="NO" id ="d56-0u-ihe">< rect key ="frame" x ="0.0" y ="44.5" width ="375" height ="102.5"/>< subviews>< label opaque ="NO" userInteractionEnabled =否" contentMode ="left" horizontalHuggingPriority ="251" verticalHuggingPriority ="251" text =选择个人资料照片" textAlignment ="center" lineBreakMode ="tailTruncation"基线Adjustment ="alignBaselines"AdjustsFontSizeToFit =否" translationsAutoresizingMaskIntoConstraints =否" id ="8zb-Kb-NJY">< rect key ="frame" x ="108" y ="20" width ="159.5" height ="20.5"/>< fontDescription key ="fontDescription" type ="system" weight ="thin" pointSize ="17"/>< nil key ="textColor"/>< nil key ="highlightedColor"/></label>< stackView opaque ="NO" contentMode ="scaleToFill" distribution ="fillEqually" interval ="6" translationsAutoresizingMaskIntoConstraints ="NO" id ="KiU-vK-XXr">< rect key ="frame" x ="12" y ="50.5" width ="351" height ="32"/>< subviews>< button opaque ="NO" contentMode ="scaleToFill" contentHorizontalAlignment ="center" contentVerticalAlignment ="center" buttonType ="roundedRect" lineBreakMode ="middleTruncation" translationsAutoresizingMaskIntoConstraints ="NO" id ="7Ri-fC-xIB"< rect key ="frame" x ="0.0" y ="0.0" width ="172.5" height ="32"/>< color key ="backgroundColor" white ="1" alpha ="1" colorSpace ="custom" customColorSpace ="genericGamma22GrayColorSpace"/>< fontDescription key ="fontDescription" type ="system" weight ="thin" pointSize ="16"/><状态键=正常" title =使用相机">< color key ="titleColor" white ="0.0" alpha ="1" colorSpace ="custom" customColorSpace ="genericGamma22GrayColorSpace"/></state></button>< button opaque ="NO" contentMode ="scaleToFill" contentHorizontalAlignment ="center" contentVerticalAlignment ="center" buttonType ="roundedRect" lineBreakMode ="middleTruncation" translationsAutoresizingMaskIntoConstraints ="NO" id ="RYr-md-Xbc">< rect key ="frame" x ="178.5" y ="0.0" width ="172.5" height ="32"/>< color key ="backgroundColor" white ="1" alpha ="1" colorSpace ="custom" customColorSpace ="genericGamma22GrayColorSpace"/>< fontDescription key ="fontDescription" type ="system" weight ="thin" pointSize ="16"/><状态键=正常" title =使用照片库">< color key ="titleColor" white ="0.0" alpha ="1" colorSpace ="custom" customColorSpace ="genericGamma22GrayColorSpace"/></state></button></subviews></stackView></subviews>< color key ="backgroundColor" red ="0.91764705882352937" green ="0.91764705882352937" blue ="0.91764705882352937" alpha ="1" colorSpace ="custom" customColorSpace ="sRGB"/><约束><约束firstItem ="8zb-Kb-NJY" firstAttribute ="centerX" secondItem ="d56-0u-ihe" secondAttribute ="centerX" id ="Ipm-mu-u52"/><约束firstAttribute ="trailing" secondItem ="KiU-vK-XXr" secondAttribute ="trailing" constant ="12" id ="M6p-kS-2Wj"/><约束firstItem ="8zb-Kb-NJY" firstAttribute ="top" secondItem ="d56-0u-ihe" secondAttribute ="top" constant ="20" id ="R3e-cc-Fer"/><约束firstAttribute ="bottom" secondItem ="KiU-vK-XXr" secondAttribute ="bottom" constant ="20" id ="gX4-Zs-QVl"/><约束firstItem ="KiU-vK-XXr" firstAttribute ="top" secondItem ="8zb-Kb-NJY" secondAttribute ="bottom" constant ="10" id ="inN-ct-lOI"/><约束firstItem ="KiU-vK-XXr" firstAttribute ="lead" secondItem ="d56-0u-ihe" secondAttribute ="lead" constant ="12" id ="sFN-WJ-e2x"/></constraints></view>< tableView clipsSubviews ="YES" contentMode ="scaleToFill" alwaysBounceVertical ="YES" dataMode ="prototypes" style ="plain" splitterStyle ="default" rowHeight =-1" estimatedRowHeight =-1" sectionHeaderHeight ="28"sectionFooterHeight ="28"转换为AutoresizingMaskIntoConstraints ="NO" id ="lnj-TZ-tdQ" customClass ="ContentSizedTableView" customModule ="LaunchTest2" customModuleProvider ="target">< rect key ="frame" x ="20" y ="159" width ="335" height ="160"/>< color key ="backgroundColor" white ="1" alpha ="1" colorSpace ="custom" customColorSpace ="genericGamma22GrayColorSpace"/><约束><约束firstAttribute ="height" priority ="250" constant ="160" id ="OWa-SK-1bb"/></constraints><原型>< tableViewCell clipsSubviews ="YES" contentMode ="scaleToFill" savesSuperviewLayoutMargins ="YES" selectionStyle =默认" indentationWidth ="10"复用标识符"DaveCell" rowHeight ="67" id ="UZ0-mW-z3R" customClass ="DaveCell"customModule =" LaunchTest2"customModuleProvider =" target>< rect key ="frame" x ="0.0" y ="28" width ="335" height ="67"/>< autoresizingMask key ="autoresizingMask"/>< tableViewCellContentView key ="contentView" opaque ="NO" clipsSubviews ="YES" multipleTouchEnabled ="YES" contentMode ="center" servesSuperviewLayoutMargins ="YES" insetsLayoutMarginsFromSafeArea ="NO" tableViewCell ="UZ0-mW-z3R" id ="Bpu-ZK-jmH">< rect key ="frame" x ="0.0" y ="0.0" width ="335" height ="66.5"/>< autoresizingMask key ="autoresizingMask"/>< subviews>< label opaque ="NO" userInteractionEnabled =否" contentMode ="left" horizontalHuggingPriority ="251" verticalHuggingPriority ="251" text ="Label" textAlignment ="natural" lineBreakMode ="tailTruncation" numberOfLines ="0" baselineAdjustment ="alignBaselines" adjustsFontSizeToFit =否"翻译为AutoresizingMaskIntoConstraints =否" id ="cta-dh-NKD">< rect key ="frame" x ="15" y ="23" width ="42" height ="21"/>< fontDescription key ="fontDescription" type ="system" pointSize ="17"/>< nil key ="textColor"/>< nil key ="highlightedColor"/></label>< textField opaque ="NO" contentMode ="scaleToFill" contentHorizontalAlignment ="left" contentVerticalAlignment ="center" borderStyle ="roundedRect" textAlignment ="right" minimumFontSize ="17" translationsAutoresizingMaskIntoConstraints ="NO" id ="CgS-ib-w4y">< rect key ="frame" x ="69" y ="18.5" width ="251" height ="30"/>< nil key ="textColor"/>< fontDescription key ="fontDescription" type ="system" pointSize ="14"/>< textInputTraits key ="textInputTraits"/></textField></subviews><约束><约束firstItem ="cta-dh-NKD" firstAttribute ="top" secondItem ="Bpu-ZK-jmH" secondAttribute ="topMargin" constant ="12" id ="We1-kz-q2C"/><约束firstAttribute ="bottomMargin" secondItem ="cta-dh-NKD" secondAttribute ="bottom" constant ="12" id ="Xrk-31-tpM"/><约束firstItem ="cta-dh-NKD" firstAttribute ="lead" secondItem ="Bpu-ZK-jmH" secondAttribute ="leadingMargin" id ="gWG-0p-rAe"/><约束firstItem ="CgS-ib-w4y" firstAttribute ="centerY" secondItem ="Bpu-ZK-jmH" secondAttribute ="centerY" id ="lQV-0f-plQ"/><约束firstItem ="CgS-ib-w4y" firstAttribute =领先" secondItem ="cta-dh-NKD" secondAttribute ="trailing"常量="12" id ="t9H-NP-Nun"/><约束firstAttribute ="trailingMargin" secondItem ="CgS-ib-w4y" secondAttribute ="trailing" id ="zfb-h1-T31"/></constraints></tableViewCellContentView><连接>< outlet property ="theLabel" destination ="cta-dh-NKD" id ="E47-0o-OD8"/>< outlet property ="theTextField" destination ="CgS-ib-w4y" id ="pNN-td-M2T"/></connections></tableViewCell></prototypes></tableView>< label opaque ="NO" userInteractionEnabled =否" contentMode ="left" horizontalHuggingPriority ="251" verticalHuggingPriority ="251" text =请放入个人资料照片."textAlignment ="center" lineBreakMode ="tailTruncation" baselineAdjustment ="alignBaselines" AdjustsFontSizeToFit ="NO" translationsAutoresizingMaskIntoConstraints ="NO" id ="rAu-zB-NyR">< rect key ="frame" x ="74.5" y ="573.5" width ="226.5" height ="21.5"/>< color key ="backgroundColor" red ="1" green ="0.14913141730000001" blue ="0.0" alpha ="1" colorSpace ="custom" customColorSpace ="sRGB"/>< fontDescription key ="fontDescription" type ="system" weight ="thin" pointSize ="18"/>< color key ="textColor" white ="1" alpha ="1" colorSpace ="custom" customColorSpace ="genericGamma22GrayColorSpace"/>< nil key ="highlightedColor"/></label></subviews>< color key ="backgroundColor" red ="0.45138680930000002" green ="0.99309605359999997" blue ="1" alpha ="1" colorSpace ="custom" customColorSpace ="sRGB"/><约束><约束firstItem ="kg2-26-RDd" firstAttribute ="top" secondItem ="SCY-zE-Vif" secondAttribute ="top" constant ="12" id ="80C-f1-Inf"/><约束firstItem ="rAu-zB-NyR" firstAttribute ="top"关系="greaterThanOrEqual" secondItem ="lnj-TZ-tdQ" secondAttribute ="bottom"常量="8" id ="9Sg-Aa-wir"/><约束firstItem ="lnj-TZ-tdQ" firstAttribute ="top" secondItem ="d56-0u-ihe" secondAttribute ="bottom" constant ="12" id ="EhF-Gu-8vx"/><约束firstAttribute ="trailing" secondItem ="d56-0u-ihe" secondAttribute ="trailing" id ="NuV-lh-WRd"/><约束firstItem ="d56-0u-ihe" firstAttribute ="top" secondItem ="kg2-26-RDd" secondAttribute ="bottom" constant ="12" id ="Ppo-X8-gdk"/><约束firstItem ="lnj-TZ-tdQ" firstAttribute ="leading" secondItem ="SCY-zE-Vif" secondAttribute ="lead" constant ="20" id ="QBd-ca-Itt"/><约束firstItem ="kg2-26-RDd" firstAttribute ="centerX" secondItem ="SCY-zE-Vif" secondAttribute ="centerX" id ="TLP-ZG-cWf"/><约束firstItem ="rAu-zB-NyR" firstAttribute ="centerX" secondItem ="SCY-zE-Vif" secondAttribute ="centerX" id ="Zat-D4-CeV"/><约束firstAttribute ="bottom" secondItem ="rAu-zB-NyR" secondAttribute ="bottom" constant ="8" id ="jdI-I6-eub"/><约束firstAttribute ="trailing" secondItem ="lnj-TZ-tdQ" secondAttribute ="trailing" constant ="20" id ="qls-uL-RxI"/><约束firstItem ="d56-0u-ihe" firstAttribute ="leading" secondItem ="SCY-zE-Vif" secondAttribute ="leading" id ="yBB-ls-1fU"/></constraints></view></subviews>< color key ="backgroundColor" red ="0.99942404029999998" green ="0.98555368190000003" blue ="0.0" alpha ="1" colorSpace ="custom" customColorSpace ="sRGB"/><约束><约束firstItem ="SCY-zE-Vif" firstAttribute ="width" secondItem ="sfU-bN-guh" secondAttribute ="width" id ="0AS-Bw-vgM"/><约束firstItem ="SCY-zE-Vif" firstAttribute ="height" secondItem ="sfU-bN-guh" secondAttribute ="height" priority ="250" id ="1nY-0L-LLo"/><约束firstItem ="SCY-zE-Vif" firstAttribute ="top" secondItem ="sfU-bN-guh" secondAttribute ="top" id ="Rqy-JP-jge"/><约束firstAttribute ="bottom" secondItem ="SCY-zE-Vif" secondAttribute ="bottom" id ="S3L-Zg-fgS"/><约束firstItem ="SCY-zE-Vif" firstAttribute =前导" secondItem ="sfU-bN-guh" secondAttribute =前导" id ="fON-cd-chM"/><约束firstAttribute ="trailing" secondItem ="SCY-zE-Vif" secondAttribute ="trailing" id ="vYb-7j-GxU"/></constraints></scrollView></subviews>< color key ="backgroundColor" white ="1" alpha ="1" colorSpace ="custom" customColorSpace ="genericGamma22GrayColorSpace"/><约束><约束firstItem ="6HN-hq-UwM" firstAttribute ="bottom" secondItem ="sfU-bN-guh" secondAttribute ="bottom" id ="1QS-4N-gEW"/><约束firstItem ="sfU-bN-guh" firstAttribute =前驱" secondItem ="6HN-hq-UwM" secondAttribute =前驱" id ="5Ur-Gf-8pP"/><约束firstItem ="sfU-bN-guh" firstAttribute ="top" secondItem ="6HN-hq-UwM" secondAttribute ="top" id ="7DE-le-6vP"/><约束firstItem ="6HN-hq-UwM" firstAttribute ="trailing" secondItem ="sfU-bN-guh" secondAttribute ="trailing" id ="N4k-MG-Uef"/></constraints>< viewLayoutGuide key ="safeArea" id ="6HN-hq-UwM"/></view>< navigationItem key ="navigationItem" id ="Wwb-5l-bvB"/><连接>< outlet property ="theScrollView" destination ="sfU-bN-guh" id ="Mtz-hh-9i3"/>< outlet property ="theTableView" destination ="lnj-TZ-tdQ" id ="Rqn-pk-icA"/></connections></viewController>< placeholder placeholderIdentifier ="IBFirstResponder" id ="mX1-qt-jnP" userLabel =第一响应者" sceneMemberID ="firstResponder"/></objects>< point key ="canvasLocation" x ="928.79999999999995" y ="132.68365817091455"/></scene><！-导航控制器-><场景sceneID ="1J1-9A-mRF">< objects>< navigationController自动调整ScrollViewInsets ="NO" id ="OCG-fk-O07" sceneMemberID ="viewController">< toolbarItems/>< navigationBar key ="navigationBar" contentMode ="scaleToFill" insetsLayoutMarginsFromSafeArea ="NO" id ="RAe-Db-aHt">< rect key ="frame" x ="0.0" y ="20" width ="375" height ="44"/>< autoresizingMask key ="autoresizingMask"/></navigationBar>< nil name ="viewControllers"/><连接>< segue destination ="ByF-jo-q34" kind ="relationship"关系="rootViewController" id ="9V8-EB-duR"/></connections></navigationController>< placeholder placeholderIdentifier ="IBFirstResponder" id ="Asf-IX-RlV" userLabel =第一响应者" sceneMemberID ="firstResponder"/></objects>< point key ="canvasLocation" x =-10.4" y ="132.68365817091455"/></scene></scenes></document> I'm creating a simple "Create your Profile" with many fields. My view is not scrolling despite the content being larger than the size of the scroll view. I think part of the issue is the relationship between the contents inside the contentView. I wanted the cells inside of the table view to be dynamic so that I can add more information later and the scrolling would still preform. I set the scrollView delegate and tableView delegate to self in viewDidLoad()
I've looked at other answers and tried their implementations to no avail. I referenced Height of contentView of UIScrollView based on inside content using Storyboard, for instance.
To adjust the table view's content dynamically, I wrote the following:
override func viewDidLayoutSubviews() {
DispatchQueue.main.async {
var frame = self.tableView.frame
frame.size.height = self.tableView.contentSize.height
self.tableView.frame = frame
self.updateViewConstraints()
}
}
For constraints, my hierarchy is Super View > Scroll View > Content View > Elements.
Essentially, each element depends on it's upper neighbor and each have set heights. The exception is the TableView, whose height is not fixed, and will be stretched according to it's neighbor below it, the error label. The error label is then constrained to the bottom of the view. Here is a more visual representation.
Here is the actual result:
I think the issue is the Error Label's constraint to the Table View is not being updated, but is there something I'm not seeing here? Everything below the top bar should scroll.
解决方案
Here is a basic example, using a "self-sizing" table view. No need for heightForRowAt or explicit setting of .contentSize -- it's all handled by auto-layout and constraints.
With a couple rows (nothing scrolls):
With a couple more rows (still, nothing scrolls):
And now with enough rows the we need scrolling:
This is how it's setup in IB / Storyboard:
Here is the source code:
//
// DaveViewController.swift
//
// Created by Don Mag on 7/1/19.
//
import UIKit
final class ContentSizedTableView: UITableView {
override var contentSize:CGSize {
didSet {
invalidateIntrinsicContentSize()
}
}
override var intrinsicContentSize: CGSize {
layoutIfNeeded()
return CGSize(width: UIView.noIntrinsicMetric, height: contentSize.height)
}
}
class DaveCell: UITableViewCell {
@IBOutlet var theLabel: UILabel!
@IBOutlet var theTextField: UITextField!
}
class DaveViewController: UIViewController {
@IBOutlet var theTableView: ContentSizedTableView!
@IBOutlet var theScrollView: UIScrollView!
let theLabels: [String] = [
"NAME",
"COMPANY",
"POSITION",
"CITY, STATE",
"EMAIL ADDRESS",
"ADDTL EMAIL\nADDRESS",
"WORK NUMBER",
"CELL NUMBER",
]
let thePlaceholders: [String] = [
"your name",
"e.g. Bizee Inc.",
"e.g. Regional Manager",
"e.g. Denver, Colorado",
"name@email.com",
"name@email.com",
"(XXX) XXX-XXXX",
"(XXX) XXX-XXXX",
]
override func viewDidLoad() {
super.viewDidLoad()
theTableView.dataSource = self
theTableView.delegate = self
theTableView.isScrollEnabled = false
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillShow), name: UIResponder.keyboardWillShowNotification, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillHide), name: UIResponder.keyboardWillHideNotification, object: nil)
// add a "Done" button to dismiss the keyboard
let doneBtn = UIBarButtonItem(barButtonSystemItem: .done, target: self, action: #selector(doneTapped))
self.navigationItem.rightBarButtonItem = doneBtn
}
@objc private func doneTapped() {
view.endEditing(true)
}
@objc private func keyboardWillShow(notification: NSNotification){
guard let keyboardFrame = notification.userInfo![UIResponder.keyboardFrameEndUserInfoKey] as? NSValue else { return }
theScrollView.contentInset.bottom = view.convert(keyboardFrame.cgRectValue, from: nil).size.height
}
@objc private func keyboardWillHide(notification: NSNotification){
theScrollView.contentInset.bottom = 0
}
}
extension DaveViewController: UITableViewDataSource, UITableViewDelegate {
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return theLabels.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "DaveCell", for: indexPath) as! DaveCell
cell.theLabel.text = theLabels[indexPath.row]
cell.theTextField.placeholder = thePlaceholders[indexPath.row]
cell.selectionStyle = .none
return cell
}
}
and here is the Storyboard source:
<?xml version="1.0" encoding="UTF-8"?>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="OCG-fk-O07">
<device id="retina4_7" orientation="portrait">
<adaptation id="fullscreen"/>
</device>
<dependencies>
<deployment identifier="iOS"/>
<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
<capability name="Safe area layout guides" minToolsVersion="9.0"/>
<capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
</dependencies>
<scenes>
<!--Dave View Controller-->
<scene sceneID="gYy-6C-lIo">
<objects>
<viewController id="ByF-jo-q34" customClass="DaveViewController" customModule="LaunchTest2" customModuleProvider="target" sceneMemberID="viewController">
<view key="view" contentMode="scaleToFill" id="KzY-ir-ZNp">
<rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
<subviews>
<scrollView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="sfU-bN-guh">
<rect key="frame" x="0.0" y="64" width="375" height="603"/>
<subviews>
<view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="SCY-zE-Vif">
<rect key="frame" x="0.0" y="0.0" width="375" height="603"/>
<subviews>
<label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Import Using LinkedIn" textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="kg2-26-RDd">
<rect key="frame" x="104" y="12" width="167.5" height="20.5"/>
<color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
<fontDescription key="fontDescription" type="system" pointSize="17"/>
<nil key="textColor"/>
<nil key="highlightedColor"/>
</label>
<view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="d56-0u-ihe">
<rect key="frame" x="0.0" y="44.5" width="375" height="102.5"/>
<subviews>
<label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Choose Profile Photo" textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="8zb-Kb-NJY">
<rect key="frame" x="108" y="20" width="159.5" height="20.5"/>
<fontDescription key="fontDescription" type="system" weight="thin" pointSize="17"/>
<nil key="textColor"/>
<nil key="highlightedColor"/>
</label>
<stackView opaque="NO" contentMode="scaleToFill" distribution="fillEqually" spacing="6" translatesAutoresizingMaskIntoConstraints="NO" id="KiU-vK-XXr">
<rect key="frame" x="12" y="50.5" width="351" height="32"/>
<subviews>
<button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="7Ri-fC-xIB">
<rect key="frame" x="0.0" y="0.0" width="172.5" height="32"/>
<color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
<fontDescription key="fontDescription" type="system" weight="thin" pointSize="16"/>
<state key="normal" title="Use Camera">
<color key="titleColor" white="0.0" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
</state>
</button>
<button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="RYr-md-Xbc">
<rect key="frame" x="178.5" y="0.0" width="172.5" height="32"/>
<color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
<fontDescription key="fontDescription" type="system" weight="thin" pointSize="16"/>
<state key="normal" title="Use Photo Library">
<color key="titleColor" white="0.0" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
</state>
</button>
</subviews>
</stackView>
</subviews>
<color key="backgroundColor" red="0.91764705882352937" green="0.91764705882352937" blue="0.91764705882352937" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
<constraints>
<constraint firstItem="8zb-Kb-NJY" firstAttribute="centerX" secondItem="d56-0u-ihe" secondAttribute="centerX" id="Ipm-mu-u52"/>
<constraint firstAttribute="trailing" secondItem="KiU-vK-XXr" secondAttribute="trailing" constant="12" id="M6p-kS-2Wj"/>
<constraint firstItem="8zb-Kb-NJY" firstAttribute="top" secondItem="d56-0u-ihe" secondAttribute="top" constant="20" id="R3e-cc-Fer"/>
<constraint firstAttribute="bottom" secondItem="KiU-vK-XXr" secondAttribute="bottom" constant="20" id="gX4-Zs-QVl"/>
<constraint firstItem="KiU-vK-XXr" firstAttribute="top" secondItem="8zb-Kb-NJY" secondAttribute="bottom" constant="10" id="inN-ct-lOI"/>
<constraint firstItem="KiU-vK-XXr" firstAttribute="leading" secondItem="d56-0u-ihe" secondAttribute="leading" constant="12" id="sFN-WJ-e2x"/>
</constraints>
</view>
<tableView clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" translatesAutoresizingMaskIntoConstraints="NO" id="lnj-TZ-tdQ" customClass="ContentSizedTableView" customModule="LaunchTest2" customModuleProvider="target">
<rect key="frame" x="20" y="159" width="335" height="160"/>
<color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
<constraints>
<constraint firstAttribute="height" priority="250" constant="160" id="OWa-SK-1bb"/>
</constraints>
<prototypes>
<tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" reuseIdentifier="DaveCell" rowHeight="67" id="UZ0-mW-z3R" customClass="DaveCell" customModule="LaunchTest2" customModuleProvider="target">
<rect key="frame" x="0.0" y="28" width="335" height="67"/>
<autoresizingMask key="autoresizingMask"/>
<tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="UZ0-mW-z3R" id="Bpu-ZK-jmH">
<rect key="frame" x="0.0" y="0.0" width="335" height="66.5"/>
<autoresizingMask key="autoresizingMask"/>
<subviews>
<label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" numberOfLines="0" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="cta-dh-NKD">
<rect key="frame" x="15" y="23" width="42" height="21"/>
<fontDescription key="fontDescription" type="system" pointSize="17"/>
<nil key="textColor"/>
<nil key="highlightedColor"/>
</label>
<textField opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="left" contentVerticalAlignment="center" borderStyle="roundedRect" textAlignment="right" minimumFontSize="17" translatesAutoresizingMaskIntoConstraints="NO" id="CgS-ib-w4y">
<rect key="frame" x="69" y="18.5" width="251" height="30"/>
<nil key="textColor"/>
<fontDescription key="fontDescription" type="system" pointSize="14"/>
<textInputTraits key="textInputTraits"/>
</textField>
</subviews>
<constraints>
<constraint firstItem="cta-dh-NKD" firstAttribute="top" secondItem="Bpu-ZK-jmH" secondAttribute="topMargin" constant="12" id="We1-kz-q2C"/>
<constraint firstAttribute="bottomMargin" secondItem="cta-dh-NKD" secondAttribute="bottom" constant="12" id="Xrk-31-tpM"/>
<constraint firstItem="cta-dh-NKD" firstAttribute="leading" secondItem="Bpu-ZK-jmH" secondAttribute="leadingMargin" id="gWG-0p-rAe"/>
<constraint firstItem="CgS-ib-w4y" firstAttribute="centerY" secondItem="Bpu-ZK-jmH" secondAttribute="centerY" id="lQV-0f-plQ"/>
<constraint firstItem="CgS-ib-w4y" firstAttribute="leading" secondItem="cta-dh-NKD" secondAttribute="trailing" constant="12" id="t9H-NP-Nun"/>
<constraint firstAttribute="trailingMargin" secondItem="CgS-ib-w4y" secondAttribute="trailing" id="zfb-h1-T31"/>
</constraints>
</tableViewCellContentView>
<connections>
<outlet property="theLabel" destination="cta-dh-NKD" id="E47-0o-OD8"/>
<outlet property="theTextField" destination="CgS-ib-w4y" id="pNN-td-M2T"/>
</connections>
</tableViewCell>
</prototypes>
</tableView>
<label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Please put in a profile photo." textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="rAu-zB-NyR">
<rect key="frame" x="74.5" y="573.5" width="226.5" height="21.5"/>
<color key="backgroundColor" red="1" green="0.14913141730000001" blue="0.0" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
<fontDescription key="fontDescription" type="system" weight="thin" pointSize="18"/>
<color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
<nil key="highlightedColor"/>
</label>
</subviews>
<color key="backgroundColor" red="0.45138680930000002" green="0.99309605359999997" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
<constraints>
<constraint firstItem="kg2-26-RDd" firstAttribute="top" secondItem="SCY-zE-Vif" secondAttribute="top" constant="12" id="80C-f1-Inf"/>
<constraint firstItem="rAu-zB-NyR" firstAttribute="top" relation="greaterThanOrEqual" secondItem="lnj-TZ-tdQ" secondAttribute="bottom" constant="8" id="9Sg-Aa-wir"/>
<constraint firstItem="lnj-TZ-tdQ" firstAttribute="top" secondItem="d56-0u-ihe" secondAttribute="bottom" constant="12" id="EhF-Gu-8vx"/>
<constraint firstAttribute="trailing" secondItem="d56-0u-ihe" secondAttribute="trailing" id="NuV-lh-WRd"/>
<constraint firstItem="d56-0u-ihe" firstAttribute="top" secondItem="kg2-26-RDd" secondAttribute="bottom" constant="12" id="Ppo-X8-gdk"/>
<constraint firstItem="lnj-TZ-tdQ" firstAttribute="leading" secondItem="SCY-zE-Vif" secondAttribute="leading" constant="20" id="QBd-ca-Itt"/>
<constraint firstItem="kg2-26-RDd" firstAttribute="centerX" secondItem="SCY-zE-Vif" secondAttribute="centerX" id="TLP-ZG-cWf"/>
<constraint firstItem="rAu-zB-NyR" firstAttribute="centerX" secondItem="SCY-zE-Vif" secondAttribute="centerX" id="Zat-D4-CeV"/>
<constraint firstAttribute="bottom" secondItem="rAu-zB-NyR" secondAttribute="bottom" constant="8" id="jdI-I6-eub"/>
<constraint firstAttribute="trailing" secondItem="lnj-TZ-tdQ" secondAttribute="trailing" constant="20" id="qls-uL-RxI"/>
<constraint firstItem="d56-0u-ihe" firstAttribute="leading" secondItem="SCY-zE-Vif" secondAttribute="leading" id="yBB-ls-1fU"/>
</constraints>
</view>
</subviews>
<color key="backgroundColor" red="0.99942404029999998" green="0.98555368190000003" blue="0.0" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
<constraints>
<constraint firstItem="SCY-zE-Vif" firstAttribute="width" secondItem="sfU-bN-guh" secondAttribute="width" id="0AS-Bw-vgM"/>
<constraint firstItem="SCY-zE-Vif" firstAttribute="height" secondItem="sfU-bN-guh" secondAttribute="height" priority="250" id="1nY-0L-LLo"/>
<constraint firstItem="SCY-zE-Vif" firstAttribute="top" secondItem="sfU-bN-guh" secondAttribute="top" id="Rqy-JP-jge"/>
<constraint firstAttribute="bottom" secondItem="SCY-zE-Vif" secondAttribute="bottom" id="S3L-Zg-fgS"/>
<constraint firstItem="SCY-zE-Vif" firstAttribute="leading" secondItem="sfU-bN-guh" secondAttribute="leading" id="fON-cd-chM"/>
<constraint firstAttribute="trailing" secondItem="SCY-zE-Vif" secondAttribute="trailing" id="vYb-7j-GxU"/>
</constraints>
</scrollView>
</subviews>
<color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
<constraints>
<constraint firstItem="6HN-hq-UwM" firstAttribute="bottom" secondItem="sfU-bN-guh" secondAttribute="bottom" id="1QS-4N-gEW"/>
<constraint firstItem="sfU-bN-guh" firstAttribute="leading" secondItem="6HN-hq-UwM" secondAttribute="leading" id="5Ur-Gf-8pP"/>
<constraint firstItem="sfU-bN-guh" firstAttribute="top" secondItem="6HN-hq-UwM" secondAttribute="top" id="7DE-le-6vP"/>
<constraint firstItem="6HN-hq-UwM" firstAttribute="trailing" secondItem="sfU-bN-guh" secondAttribute="trailing" id="N4k-MG-Uef"/>
</constraints>
<viewLayoutGuide key="safeArea" id="6HN-hq-UwM"/>
</view>
<navigationItem key="navigationItem" id="Wwb-5l-bvB"/>
<connections>
<outlet property="theScrollView" destination="sfU-bN-guh" id="Mtz-hh-9i3"/>
<outlet property="theTableView" destination="lnj-TZ-tdQ" id="Rqn-pk-icA"/>
</connections>
</viewController>
<placeholder placeholderIdentifier="IBFirstResponder" id="mX1-qt-jnP" userLabel="First Responder" sceneMemberID="firstResponder"/>
</objects>
<point key="canvasLocation" x="928.79999999999995" y="132.68365817091455"/>
</scene>
<!--Navigation Controller-->
<scene sceneID="1J1-9A-mRF">
<objects>
<navigationController automaticallyAdjustsScrollViewInsets="NO" id="OCG-fk-O07" sceneMemberID="viewController">
<toolbarItems/>
<navigationBar key="navigationBar" contentMode="scaleToFill" insetsLayoutMarginsFromSafeArea="NO" id="RAe-Db-aHt">
<rect key="frame" x="0.0" y="20" width="375" height="44"/>
<autoresizingMask key="autoresizingMask"/>
</navigationBar>
<nil name="viewControllers"/>
<connections>
<segue destination="ByF-jo-q34" kind="relationship" relationship="rootViewController" id="9V8-EB-duR"/>
</connections>
</navigationController>
<placeholder placeholderIdentifier="IBFirstResponder" id="Asf-IX-RlV" userLabel="First Responder" sceneMemberID="firstResponder"/>
</objects>
<point key="canvasLocation" x="-10.4" y="132.68365817091455"/>
</scene>
</scenes>
</document>
这篇关于带有UITableView的contentView不在UIScrollView中滚动的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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