Swift CollectionView and TableView in ScrollView
Question
So, how you can see in pic below, i have collectionView and TableView in ScrollView. And it works not how i expected. You can see the problem in gif picture. The CollectionView has static height = 100 and tableview has selfsizeble height.StackView's height and width are equal to height and width of ScrollView. It looks like there is somewhere a tiny mistake, but i cant find it out.
here AutoSizeClass for 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()
}
}
The problem is that View with Collection View staying in the same place and doesnt scroll up.
1 answers
solution1
1 ACCPTED 2020-08-22 17:19:39
Based on your comment "with disabled scrolling in tableview it non scrollable at all" ... you've done something wrong with your setup.
Here is how it needs to be laid-out in Storyboard to get it to work. Note that the table view must have scrolling disabled :
Here is the source to that 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>
and demonstration code:
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
}
}
Results:
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