Swift CollectionView và TableView trong ScrollView
Aug 22 2020
Vì vậy, bạn có thể thấy như thế nào trong hình dưới đây, tôi có collectionView và TableView trong ScrollView. Và nó hoạt động không như tôi mong đợi. Bạn có thể thấy vấn đề trong ảnh gif. CollectionView có chiều cao tĩnh = 100 và chế độ xem bảng có chiều cao tự thay đổi kích thước. Chiều cao và chiều rộng củaStackView bằng chiều cao và chiều rộng của ScrollView. Có vẻ như có một sai sót nhỏ ở đâu đó, nhưng tôi không thể tìm ra.
tại đây AutoSizeClass cho 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()
}
}
Vấn đề là Chế độ xem với Chế độ xem Bộ sưu tập ở cùng một vị trí và không cuộn lên.
Trả lời
1 DonMag Aug 23 2020 at 00:19
Dựa trên nhận xét của bạn "với tính năng cuộn bị tắt trong chế độ xem bảng, nó không thể cuộn được" ... bạn đã làm sai với thiết lập của mình.
Đây là cách nó cần được bố trí trong Storyboard để nó hoạt động. Lưu ý rằng chế độ xem bảng phải bị tắt tính năng cuộn :
Đây là nguồn của Bảng phân cảnh đó:
<?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>
và mã trình diễn:
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
}
}
Các kết quả:
