如何在 TableViewCell 中设置图标的背景颜色?

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【中文标题】如何在 TableViewCell 中设置图标的背景颜色?【英文标题】:How to set icon's background color in TableViewCell? 【发布时间】:2020-04-21 19:41:28 【问题描述】:

伙计们!我有一个有点傻的问题。我想在 TableViewCell 中制作图标 like here 带有背景颜色和圆角。据我了解,我可以使用 Xcode 中定义的本机图标,但我无法更改背景,因为图标的大小与设置相比是错误的。 苹果是怎么做到的?他们制作图像还是可以通过 Xcode 和 Swift 本身来完成?谢谢

附:我将 TableViewController 与静态单元格一起使用,现在它看起来像 that

【问题讨论】:

你想制作一个可点击的按钮吗?或者只是在UIImageView 中显示System Image 我使用 ImageView。 imgur.com/kDNNGNV 【参考方案1】:

您几乎肯定会想要使用Custom 单元格样式而不是Basic

添加UIView 以用作图标的“圆角”部分。为您的系统图像添加一个以该视图为中心的图像视图。添加标签。

基本方法(如您所述,使用静态表格视图):

这是“圆形视图”的代码 - 配置为 @IBDesignable,因此您可以在 Storyboard 中看到它:

@IBDesignable
class RoundedView: UIView 

    override init(frame: CGRect) 
        super.init(frame: frame)
        commonInit()
    

    required init?(coder: NSCoder) 
        super.init(coder: coder)
        commonInit()
    

    func commonInit() -> Void 
        layer.cornerRadius = 8
        layer.masksToBounds = true
    


输出:

这里是完整的故事板源代码,可帮助您入门:

<?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="WtW-LE-VWk">
    <device id="retina4_7" orientation="portrait" appearance="light"/>
    <dependencies>
        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="16087"/>
        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
    </dependencies>
    <scenes>
        <!--Table View Controller-->
        <scene sceneID="qc4-73-L2A">
            <objects>
                <tableViewController id="27Q-AC-Jb0" sceneMemberID="viewController">
                    <tableView key="view" clipsSubviews="YES" contentMode="scaleToFill" alwaysBounceVertical="YES" dataMode="static" style="insetGrouped" separatorStyle="default" rowHeight="-1" estimatedRowHeight="-1" sectionHeaderHeight="18" sectionFooterHeight="18" id="IFE-zD-nEK">
                        <rect key="frame" x="0.0" y="0.0"  />
                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                        <color key="backgroundColor" white="0.0" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                        <sections>
                            <tableViewSection id="LW5-bS-sCO">
                                <cells>
                                    <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="55" id="sxh-Sk-bNM">
                                        <rect key="frame" x="16" y="18"  />
                                        <autoresizingMask key="autoresizingMask"/>
                                        <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="sxh-Sk-bNM" id="H0b-UB-YIR">
                                            <rect key="frame" x="0.0" y="0.0"  />
                                            <autoresizingMask key="autoresizingMask"/>
                                            <subviews>
                                                <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="pz9-zZ-kOc" customClass="RoundedView" customModule="MiniScratch" customModuleProvider="target">
                                                    <rect key="frame" x="16" y="11"  />
                                                    <color key="backgroundColor" systemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
                                                    <constraints>
                                                        <constraint firstAttribute="width" secondItem="pz9-zZ-kOc" secondAttribute="height" multiplier="1:1" id="YcQ-rh-NHn"/>
                                                        <constraint firstAttribute="width" constant="32" id="jck-uB-cqC"/>
                                                    </constraints>
                                                </view>
                                                <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="bolt.fill" catalog="system" translatesAutoresizingMaskIntoConstraints="NO" id="JeW-kU-JcB">
                                                    <rect key="frame" x="23.5" y="16"  />
                                                    <color key="tintColor" red="0.3623966575" green="0.55341643100000004" blue="0.62130481000000004" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                                                </imageView>
                                                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="clR-2W-9tl">
                                                    <rect key="frame" x="56" y="16.5"  />
                                                    <fontDescription key="fontDescription" type="system" pointSize="17"/>
                                                    <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                                                    <nil key="highlightedColor"/>
                                                </label>
                                            </subviews>
                                            <color key="backgroundColor" red="0.10831441729999999" green="0.10833679879999999" blue="0.11850371210000001" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                                            <constraints>
                                                <constraint firstItem="JeW-kU-JcB" firstAttribute="centerY" secondItem="pz9-zZ-kOc" secondAttribute="centerY" id="9cf-bd-KWA"/>
                                                <constraint firstItem="pz9-zZ-kOc" firstAttribute="leading" secondItem="H0b-UB-YIR" secondAttribute="leadingMargin" id="BDH-af-jJ9"/>
                                                <constraint firstAttribute="bottomMargin" relation="greaterThanOrEqual" secondItem="pz9-zZ-kOc" secondAttribute="bottom" id="DgH-q4-Bu8"/>
                                                <constraint firstItem="clR-2W-9tl" firstAttribute="centerY" secondItem="pz9-zZ-kOc" secondAttribute="centerY" id="JZT-iV-Btg"/>
                                                <constraint firstItem="JeW-kU-JcB" firstAttribute="centerX" secondItem="pz9-zZ-kOc" secondAttribute="centerX" id="Qwc-Ki-K4f"/>
                                                <constraint firstAttribute="trailingMargin" secondItem="clR-2W-9tl" secondAttribute="trailing" constant="8" id="hSO-P4-ERd"/>
                                                <constraint firstItem="clR-2W-9tl" firstAttribute="leading" secondItem="pz9-zZ-kOc" secondAttribute="trailing" constant="8" id="l5p-PI-tUW"/>
                                                <constraint firstItem="pz9-zZ-kOc" firstAttribute="top" secondItem="H0b-UB-YIR" secondAttribute="topMargin" id="qlH-ce-h5Q"/>
                                            </constraints>
                                        </tableViewCellContentView>
                                    </tableViewCell>
                                    <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="55" id="Vlt-uX-i4X">
                                        <rect key="frame" x="16" y="73"  />
                                        <autoresizingMask key="autoresizingMask"/>
                                        <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="Vlt-uX-i4X" id="FvK-6i-Ped">
                                            <rect key="frame" x="0.0" y="0.0"  />
                                            <autoresizingMask key="autoresizingMask"/>
                                            <subviews>
                                                <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="C2d-Cl-1Vf" customClass="RoundedView" customModule="MiniScratch" customModuleProvider="target">
                                                    <rect key="frame" x="16" y="11"  />
                                                    <color key="backgroundColor" red="0.98642545940000004" green="0.74593347310000002" blue="0.57237553600000002" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                                                    <constraints>
                                                        <constraint firstAttribute="width" secondItem="C2d-Cl-1Vf" secondAttribute="height" multiplier="1:1" id="EIW-gj-enD"/>
                                                        <constraint firstAttribute="width" constant="32" id="Iok-r4-lBV"/>
                                                    </constraints>
                                                </view>
                                                <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="star.fill" catalog="system" translatesAutoresizingMaskIntoConstraints="NO" id="4yK-2K-GYt">
                                                    <rect key="frame" x="21" y="17"  />
                                                    <color key="tintColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                                                </imageView>
                                                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="GAQ-UB-6qR">
                                                    <rect key="frame" x="56" y="16.5"  />
                                                    <fontDescription key="fontDescription" type="system" pointSize="17"/>
                                                    <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                                                    <nil key="highlightedColor"/>
                                                </label>
                                            </subviews>
                                            <color key="backgroundColor" red="0.10831441729999999" green="0.10833679879999999" blue="0.11850371210000001" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                                            <constraints>
                                                <constraint firstItem="4yK-2K-GYt" firstAttribute="centerY" secondItem="C2d-Cl-1Vf" secondAttribute="centerY" id="0r3-0F-9sC"/>
                                                <constraint firstItem="GAQ-UB-6qR" firstAttribute="leading" secondItem="C2d-Cl-1Vf" secondAttribute="trailing" constant="8" id="8wC-js-QNq"/>
                                                <constraint firstAttribute="bottomMargin" relation="greaterThanOrEqual" secondItem="C2d-Cl-1Vf" secondAttribute="bottom" id="CY5-96-3hI"/>
                                                <constraint firstAttribute="trailingMargin" secondItem="GAQ-UB-6qR" secondAttribute="trailing" constant="8" id="H0b-Vp-33Y"/>
                                                <constraint firstItem="C2d-Cl-1Vf" firstAttribute="top" secondItem="FvK-6i-Ped" secondAttribute="topMargin" id="eNy-0L-bfh"/>
                                                <constraint firstItem="4yK-2K-GYt" firstAttribute="centerX" secondItem="C2d-Cl-1Vf" secondAttribute="centerX" id="jZa-av-lov"/>
                                                <constraint firstItem="C2d-Cl-1Vf" firstAttribute="leading" secondItem="FvK-6i-Ped" secondAttribute="leadingMargin" id="pn9-As-KE5"/>
                                                <constraint firstItem="GAQ-UB-6qR" firstAttribute="centerY" secondItem="C2d-Cl-1Vf" secondAttribute="centerY" id="tie-Yc-jw2"/>
                                            </constraints>
                                        </tableViewCellContentView>
                                    </tableViewCell>
                                </cells>
                            </tableViewSection>
                            <tableViewSection headerTitle="Section Header" id="9ZP-e3-t3g">
                                <cells>
                                    <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="55" id="UZ5-EZ-H5Y">
                                        <rect key="frame" x="16" y="184"  />
                                        <autoresizingMask key="autoresizingMask"/>
                                        <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="UZ5-EZ-H5Y" id="ABd-id-DDv">
                                            <rect key="frame" x="0.0" y="0.0"  />
                                            <autoresizingMask key="autoresizingMask"/>
                                            <subviews>
                                                <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="KaK-vV-uVH" customClass="RoundedView" customModule="MiniScratch" customModuleProvider="target">
                                                    <rect key="frame" x="15" y="11"  />
                                                    <color key="backgroundColor" red="0.83741801979999997" green="0.83743780850000005" blue="0.83742713930000001" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                                                    <constraints>
                                                        <constraint firstAttribute="width" secondItem="KaK-vV-uVH" secondAttribute="height" multiplier="1:1" id="AM4-pp-HAO"/>
                                                        <constraint firstAttribute="width" constant="32" id="UcR-9P-CI0"/>
                                                    </constraints>
                                                </view>
                                                <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="dollarsign.circle.fill" catalog="system" translatesAutoresizingMaskIntoConstraints="NO" id="U8c-Bp-yMq">
                                                    <rect key="frame" x="21" y="17.5"  />
                                                    <color key="tintColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                                                </imageView>
                                                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="12T-Ga-3Q3">
                                                    <rect key="frame" x="55" y="16.5"  />
                                                    <fontDescription key="fontDescription" type="system" pointSize="17"/>
                                                    <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                                                    <nil key="highlightedColor"/>
                                                </label>
                                            </subviews>
                                            <color key="backgroundColor" red="0.10831441729999999" green="0.10833679879999999" blue="0.11850371210000001" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                                            <constraints>
                                                <constraint firstItem="U8c-Bp-yMq" firstAttribute="centerX" secondItem="KaK-vV-uVH" secondAttribute="centerX" id="4um-Hn-oWU"/>
                                                <constraint firstItem="KaK-vV-uVH" firstAttribute="leading" secondItem="ABd-id-DDv" secondAttribute="leadingMargin" id="COf-5P-6Uz"/>
                                                <constraint firstItem="12T-Ga-3Q3" firstAttribute="leading" secondItem="KaK-vV-uVH" secondAttribute="trailing" constant="8" id="N47-hy-itj"/>
                                                <constraint firstItem="U8c-Bp-yMq" firstAttribute="centerY" secondItem="KaK-vV-uVH" secondAttribute="centerY" id="ThJ-LN-iPp"/>
                                                <constraint firstItem="KaK-vV-uVH" firstAttribute="top" secondItem="ABd-id-DDv" secondAttribute="topMargin" id="Ya3-A5-iUX"/>
                                                <constraint firstAttribute="trailingMargin" secondItem="12T-Ga-3Q3" secondAttribute="trailing" constant="8" id="bJy-ZC-oKM"/>
                                                <constraint firstItem="12T-Ga-3Q3" firstAttribute="centerY" secondItem="KaK-vV-uVH" secondAttribute="centerY" id="fM8-fC-9K3"/>
                                                <constraint firstAttribute="bottomMargin" relation="greaterThanOrEqual" secondItem="KaK-vV-uVH" secondAttribute="bottom" id="kvZ-QP-3Ai"/>
                                            </constraints>
                                        </tableViewCellContentView>
                                    </tableViewCell>
                                    <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="55" id="Wm0-f3-rlS">
                                        <rect key="frame" x="16" y="239"  />
                                        <autoresizingMask key="autoresizingMask"/>
                                        <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="Wm0-f3-rlS" id="EEv-Md-d6p">
                                            <rect key="frame" x="0.0" y="0.0"  />
                                            <autoresizingMask key="autoresizingMask"/>
                                            <subviews>
                                                <view contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="7MA-zO-mfe" customClass="RoundedView" customModule="MiniScratch" customModuleProvider="target">
                                                    <rect key="frame" x="15" y="11"  />
                                                    <color key="backgroundColor" red="0.0" green="0.58980089430000004" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                                                    <constraints>
                                                        <constraint firstAttribute="width" secondItem="7MA-zO-mfe" secondAttribute="height" multiplier="1:1" id="Gvh-tX-e0t"/>
                                                        <constraint firstAttribute="width" constant="32" id="fRi-hL-8PM"/>
                                                    </constraints>
                                                </view>
                                                <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" image="globe" catalog="system" translatesAutoresizingMaskIntoConstraints="NO" id="wSv-n8-uf2">
                                                    <rect key="frame" x="21.5" y="18"  />
                                                    <color key="tintColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                                                </imageView>
                                                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Label" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="pnh-HT-JDj">
                                                    <rect key="frame" x="55" y="16.5"  />
                                                    <fontDescription key="fontDescription" type="system" pointSize="17"/>
                                                    <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                                                    <nil key="highlightedColor"/>
                                                </label>
                                            </subviews>
                                            <color key="backgroundColor" red="0.10831441729999999" green="0.10833679879999999" blue="0.11850371210000001" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                                            <constraints>
                                                <constraint firstItem="pnh-HT-JDj" firstAttribute="centerY" secondItem="7MA-zO-mfe" secondAttribute="centerY" id="2MY-6y-DAB"/>
                                                <constraint firstAttribute="bottomMargin" relation="greaterThanOrEqual" secondItem="7MA-zO-mfe" secondAttribute="bottom" id="7ES-kW-TRx"/>
                                                <constraint firstItem="wSv-n8-uf2" firstAttribute="centerY" secondItem="7MA-zO-mfe" secondAttribute="centerY" id="97K-2Q-0GG"/>
                                                <constraint firstItem="7MA-zO-mfe" firstAttribute="leading" secondItem="EEv-Md-d6p" secondAttribute="leadingMargin" id="9c3-12-fqv"/>
                                                <constraint firstAttribute="trailingMargin" secondItem="pnh-HT-JDj" secondAttribute="trailing" constant="8" id="FgF-cy-Ex8"/>
                                                <constraint firstItem="7MA-zO-mfe" firstAttribute="top" secondItem="EEv-Md-d6p" secondAttribute="topMargin" id="bgS-Cz-64I"/>
                                                <constraint firstItem="wSv-n8-uf2" firstAttribute="centerX" secondItem="7MA-zO-mfe" secondAttribute="centerX" id="lX8-69-qVu"/>
                                                <constraint firstItem="pnh-HT-JDj" firstAttribute="leading" secondItem="7MA-zO-mfe" secondAttribute="trailing" constant="8" id="xSU-A1-3Is"/>
                                            </constraints>
                                        </tableViewCellContentView>
                                    </tableViewCell>
                                </cells>
                            </tableViewSection>
                        </sections>
                        <connections>
                            <outlet property="dataSource" destination="27Q-AC-Jb0" id="qb8-kc-ZDj"/>
                            <outlet property="delegate" destination="27Q-AC-Jb0" id="UJ5-Rn-UKL"/>
                        </connections>
                    </tableView>
                    <navigationItem key="navigationItem" id="DrP-bd-JmI"/>
                </tableViewController>
                <placeholder placeholderIdentifier="IBFirstResponder" id="MZt-E3-d6F" userLabel="First Responder" customClass="UIResponder" sceneMemberID="firstResponder"/>
            </objects>
            <point key="canvasLocation" x="1024.8" y="89.505247376311857"/>
        </scene>
        <!--Navigation Controller-->
        <scene sceneID="OjR-lK-dFV">
            <objects>
                <navigationController automaticallyAdjustsScrollViewInsets="NO" id="WtW-LE-VWk" sceneMemberID="viewController">
                    <toolbarItems/>
                    <navigationBar key="navigationBar" contentMode="scaleToFill" insetsLayoutMarginsFromSafeArea="NO" id="djt-qE-oyG">
                        <rect key="frame" x="0.0" y="0.0"  />
                        <autoresizingMask key="autoresizingMask"/>
                    </navigationBar>
                    <nil name="viewControllers"/>
                    <connections>
                        <segue destination="27Q-AC-Jb0" kind="relationship" relationship="rootViewController" id="GGU-bG-Zsb"/>
                    </connections>
                </navigationController>
                <placeholder placeholderIdentifier="IBFirstResponder" id="K6D-eL-jlc" userLabel="First Responder" customClass="UIResponder" sceneMemberID="firstResponder"/>
            </objects>
            <point key="canvasLocation" x="85.599999999999994" y="89.505247376311857"/>
        </scene>
    </scenes>
    <resources>
        <image name="bolt.fill" catalog="system"  />
        <image name="dollarsign.circle.fill" catalog="system"  />
        <image name="globe" catalog="system"  />
        <image name="star.fill" catalog="system"  />
    </resources>
</document>

【讨论】:

【参考方案2】:

我认为最简单的方法是自己构建图标。只需使用 Sketch 或 Illustrator,在矩形顶部的 SF Pro Text 中添加一个新文本字段,然后将 SFSymbols 中的图标粘贴进去。将其导出为 PDF,您可以将其用作应用中的图标.

Here is a screenshot of the setup in Sketch.

只是一个圆角矩形顶部的文本层

【讨论】:

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