Swift CollectionView et TableView dans ScrollView
Aug 22 2020
Donc, comme vous pouvez le voir sur la photo ci-dessous, j'ai collectionView et TableView dans ScrollView. Et cela ne fonctionne pas comme je m'y attendais. Vous pouvez voir le problème dans l'image gif. Le CollectionView a une hauteur statique = 100 et tableview a une hauteur auto-dimensionnée. La hauteur et la largeur de StackView sont égales à la hauteur et à la largeur de ScrollView. On dirait qu'il y a quelque part une petite erreur, mais je ne peux pas le découvrir.
ici AutoSizeClass pour TableView:
class AutoSizingTableView: UITableView {
override var intrinsicContentSize: CGSize {
self.layoutIfNeeded()
return CGSize(width: UIView.noIntrinsicMetric, height: contentSize.height)
}
override var contentSize: CGSize {
didSet{
self.invalidateIntrinsicContentSize()
}
}
override func reloadData() {
super.reloadData()
self.invalidateIntrinsicContentSize()
}
}
Le problème est que View with Collection View reste au même endroit et ne défile pas vers le haut.
Réponses
1 DonMag Aug 23 2020 at 00:19
Sur la base de votre commentaire "avec le défilement désactivé dans le tableau, il ne peut pas du tout défiler" ... vous avez fait quelque chose de mal avec votre configuration.
Voici comment il doit être présenté dans Storyboard pour qu'il fonctionne. Notez que la vue tableau doit avoir le défilement désactivé :
Voici la source de ce Storyboard:
<?xml version="1.0" encoding="UTF-8"?>
<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="16096" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="for-Xa-JUC">
<device id="retina4_7" orientation="portrait" appearance="light"/>
<dependencies>
<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="16087"/>
<capability name="Safe area layout guides" minToolsVersion="9.0"/>
<capability name="collection view cell content view" minToolsVersion="11.0"/>
<capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
</dependencies>
<scenes>
<!--Azdaev View Controller-->
<scene sceneID="UV2-bp-BSw">
<objects>
<viewController id="for-Xa-JUC" customClass="AzdaevViewController" customModule="TableAdd" customModuleProvider="target" sceneMemberID="viewController">
<view key="view" contentMode="scaleToFill" id="Aiw-Z0-OHR">
<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="NiW-5R-cfc">
<rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
<subviews>
<stackView opaque="NO" contentMode="scaleToFill" axis="vertical" spacing="8" translatesAutoresizingMaskIntoConstraints="NO" id="Iqj-ag-gPR">
<rect key="frame" x="0.0" y="0.0" width="375" height="348"/>
<subviews>
<view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="Ewg-bZ-eyT">
<rect key="frame" x="0.0" y="0.0" width="375" height="100"/>
<subviews>
<collectionView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" dataMode="prototypes" translatesAutoresizingMaskIntoConstraints="NO" id="PVP-gp-7EW">
<rect key="frame" x="0.0" y="0.0" width="375" height="100"/>
<color key="backgroundColor" systemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
<constraints>
<constraint firstAttribute="height" constant="100" id="4ie-da-XpJ"/>
</constraints>
<collectionViewFlowLayout key="collectionViewLayout" scrollDirection="horizontal" automaticEstimatedItemSize="YES" minimumLineSpacing="10" minimumInteritemSpacing="10" id="JhR-eW-5b9">
<size key="itemSize" width="80" height="80"/>
<size key="headerReferenceSize" width="0.0" height="0.0"/>
<size key="footerReferenceSize" width="0.0" height="0.0"/>
<inset key="sectionInset" minX="0.0" minY="0.0" maxX="0.0" maxY="0.0"/>
</collectionViewFlowLayout>
<cells>
<collectionViewCell opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" reuseIdentifier="SimpleCollCell" id="znX-Ra-Axt" customClass="SimpleCollCell" customModule="TableAdd" customModuleProvider="target">
<rect key="frame" x="0.0" y="10" width="80" height="80"/>
<autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
<collectionViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" insetsLayoutMarginsFromSafeArea="NO" id="GWE-KA-31W">
<rect key="frame" x="0.0" y="0.0" width="80" height="80"/>
<autoresizingMask key="autoresizingMask"/>
<subviews>
<label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="7U6-uF-qZB">
<rect key="frame" x="19" y="30" width="42" height="20.5"/>
<fontDescription key="fontDescription" type="system" pointSize="17"/>
<nil key="textColor"/>
<nil key="highlightedColor"/>
</label>
</subviews>
<color key="backgroundColor" red="0.99953407049999998" green="0.98835557699999999" blue="0.47265523669999998" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
<constraints>
<constraint firstItem="7U6-uF-qZB" firstAttribute="centerY" secondItem="GWE-KA-31W" secondAttribute="centerY" id="8E5-5k-QqV"/>
<constraint firstItem="7U6-uF-qZB" firstAttribute="centerX" secondItem="GWE-KA-31W" secondAttribute="centerX" id="FTH-Df-wyE"/>
</constraints>
</collectionViewCellContentView>
<connections>
<outlet property="theLabel" destination="7U6-uF-qZB" id="kcQ-Wy-2wY"/>
</connections>
</collectionViewCell>
</cells>
</collectionView>
</subviews>
<color key="backgroundColor" systemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
<constraints>
<constraint firstAttribute="trailing" secondItem="PVP-gp-7EW" secondAttribute="trailing" id="941-fg-5DC"/>
<constraint firstItem="PVP-gp-7EW" firstAttribute="top" secondItem="Ewg-bZ-eyT" secondAttribute="top" id="9kx-ps-iUv"/>
<constraint firstItem="PVP-gp-7EW" firstAttribute="leading" secondItem="Ewg-bZ-eyT" secondAttribute="leading" id="OYx-qn-7cl"/>
<constraint firstAttribute="bottom" secondItem="PVP-gp-7EW" secondAttribute="bottom" id="OgJ-Yv-Jal"/>
</constraints>
</view>
<tableView clipsSubviews="YES" contentMode="scaleToFill" placeholderIntrinsicWidth="infinite" placeholderIntrinsicHeight="240" alwaysBounceVertical="YES" scrollEnabled="NO" dataMode="prototypes" style="plain" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="28" sectionFooterHeight="28" translatesAutoresizingMaskIntoConstraints="NO" id="XGR-gS-YDa" customClass="ContentSizedTableView" customModule="TableAdd" customModuleProvider="target">
<rect key="frame" x="0.0" y="108" width="375" height="240"/>
<color key="backgroundColor" systemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
<prototypes>
<tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" reuseIdentifier="SimpleTableCell" id="LTQ-ke-1N0" customClass="SimpleTableCell" customModule="TableAdd" customModuleProvider="target">
<rect key="frame" x="0.0" y="28" width="375" height="43"/>
<autoresizingMask key="autoresizingMask"/>
<tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="LTQ-ke-1N0" id="ILn-2o-e6E">
<rect key="frame" x="0.0" y="0.0" width="375" height="43"/>
<autoresizingMask key="autoresizingMask"/>
<subviews>
<label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="QxE-9g-2Hm">
<rect key="frame" x="15" y="11" width="345" height="21"/>
<fontDescription key="fontDescription" type="system" pointSize="17"/>
<nil key="textColor"/>
<nil key="highlightedColor"/>
</label>
</subviews>
<constraints>
<constraint firstAttribute="bottomMargin" secondItem="QxE-9g-2Hm" secondAttribute="bottom" id="2kY-7j-i6k"/>
<constraint firstAttribute="trailingMargin" secondItem="QxE-9g-2Hm" secondAttribute="trailing" id="8Rb-MN-fCq"/>
<constraint firstItem="QxE-9g-2Hm" firstAttribute="top" secondItem="ILn-2o-e6E" secondAttribute="topMargin" id="IFx-mV-xVp"/>
<constraint firstItem="QxE-9g-2Hm" firstAttribute="leading" secondItem="ILn-2o-e6E" secondAttribute="leadingMargin" id="SkZ-FP-3Xk"/>
</constraints>
</tableViewCellContentView>
<connections>
<outlet property="theLabel" destination="QxE-9g-2Hm" id="tCs-qB-RnZ"/>
</connections>
</tableViewCell>
</prototypes>
</tableView>
</subviews>
</stackView>
</subviews>
<constraints>
<constraint firstItem="Iqj-ag-gPR" firstAttribute="width" secondItem="cNU-lA-jis" secondAttribute="width" id="YWn-il-cIA"/>
<constraint firstItem="Iqj-ag-gPR" firstAttribute="bottom" secondItem="78Z-qi-tb8" secondAttribute="bottom" id="dWW-mF-X02"/>
<constraint firstItem="Iqj-ag-gPR" firstAttribute="leading" secondItem="78Z-qi-tb8" secondAttribute="leading" id="jlB-bm-lOp"/>
<constraint firstItem="Iqj-ag-gPR" firstAttribute="top" secondItem="78Z-qi-tb8" secondAttribute="top" id="oPw-KA-7Eb"/>
<constraint firstItem="Iqj-ag-gPR" firstAttribute="trailing" secondItem="78Z-qi-tb8" secondAttribute="trailing" id="t90-TH-ogv"/>
</constraints>
<viewLayoutGuide key="contentLayoutGuide" id="78Z-qi-tb8"/>
<viewLayoutGuide key="frameLayoutGuide" id="cNU-lA-jis"/>
</scrollView>
</subviews>
<color key="backgroundColor" systemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
<constraints>
<constraint firstItem="NiW-5R-cfc" firstAttribute="top" secondItem="kCj-qX-p52" secondAttribute="top" id="18n-ZT-7rU"/>
<constraint firstItem="NiW-5R-cfc" firstAttribute="leading" secondItem="kCj-qX-p52" secondAttribute="leading" id="1BY-QR-X5K"/>
<constraint firstItem="NiW-5R-cfc" firstAttribute="trailing" secondItem="kCj-qX-p52" secondAttribute="trailing" id="YHh-qb-ygU"/>
<constraint firstItem="NiW-5R-cfc" firstAttribute="bottom" secondItem="kCj-qX-p52" secondAttribute="bottom" id="tzd-Zo-fNv"/>
</constraints>
<viewLayoutGuide key="safeArea" id="kCj-qX-p52"/>
</view>
<connections>
<outlet property="theCollectionView" destination="PVP-gp-7EW" id="MxW-WG-GPj"/>
<outlet property="theTableView" destination="XGR-gS-YDa" id="NhY-EO-L3y"/>
</connections>
</viewController>
<placeholder placeholderIdentifier="IBFirstResponder" id="nbL-KS-cva" userLabel="First Responder" customClass="UIResponder" sceneMemberID="firstResponder"/>
</objects>
<point key="canvasLocation" x="447.82608695652175" y="3079.6875"/>
</scene>
</scenes>
</document>
et code de démonstration:
final class ContentSizedTableView: UITableView {
override var contentSize:CGSize {
didSet {
invalidateIntrinsicContentSize()
}
}
override var intrinsicContentSize: CGSize {
layoutIfNeeded()
return CGSize(width: UIView.noIntrinsicMetric, height: contentSize.height)
}
}
class SimpleCollCell: UICollectionViewCell {
@IBOutlet var theLabel: UILabel!
}
class SimpleTableCell: UITableViewCell {
@IBOutlet var theLabel: UILabel!
}
class AzdaevViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate, UITableViewDataSource, UITableViewDelegate {
@IBOutlet var theCollectionView: UICollectionView!
@IBOutlet var theTableView: ContentSizedTableView!
override func viewDidLoad() {
super.viewDidLoad()
theTableView.dataSource = self
theTableView.delegate = self
theCollectionView.dataSource = self
theCollectionView.delegate = self
}
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 30
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let c = tableView.dequeueReusableCell(withIdentifier: "SimpleTableCell", for: indexPath) as! SimpleTableCell
c.theLabel.text = "Row \(indexPath.row)"
return c
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return 10
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let c = collectionView.dequeueReusableCell(withReuseIdentifier: "SimpleCollCell", for: indexPath) as! SimpleCollCell
c.theLabel.text = "\(indexPath.item)"
return c
}
}
Résultats:
