XZ_iOS之pch的使用

本文介绍了如何在项目中正确配置.pch文件以实现全局设置,包括如何将PrecompilePrefixHeader设置为YES,以及如何指定正确的PrefixHeader路径。此外,还讨论了当遇到.pch文件未找到错误时的解决方法。
".pch"全局的设置
在项目的“Build Settings”里面搜prefix,找到Precompile Prefix Header 置为YES;
在Prefix Header写pch的路径

// Precompile Prefix Header 改为Yes;
// Prefix Header中写:$(SRCROOT)/$(PRODUCT_NAME)

3) $(SRCROOT)/pchFile.pch
可能遇到问题:
/Users/MyFile/MySelf/2Day/XZMicroBlog6/XZMicroBlog/:3:10:'/Users/MyFile/MySelf/2Day/XZMicroBlog6/XZMicroBlog/XZMicroBlog.pch'file not found
这时候你会发现少了一层路径,这是相对路径,所有要手动的把  $(SRCROOT)/pchFile.pch 改为  $(SRCROOT)/上层文件夹名/pchFile.pch
例: $(SRCROOT)/XZMicroBlog/pchFile.pch
/Users/MyFile/MySelf/2Day/简单封装下拉菜单2/XZMicroBlog6/XZMicroBlog/XZMicroBlog.pch
原本的是怎么样实现的?按照原本的方式<?xml version="1.0" encoding="UTF-8"?> <document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="22505" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES"> <device id="retina6_1" orientation="portrait" appearance="light"/> <dependencies> <deployment identifier="iOS"/> <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="22504"/> <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/> </dependencies> <objects> <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner"/> <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/> <view clipsSubviews="YES" contentMode="scaleToFill" id="cT9-nk-Xp8" customClass="CoverImageBigContainerView" customModule="OmadaSurveillance" customModuleProvider="target"> <rect key="frame" x="0.0" y="0.0" width="320" height="180"/> <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/> <subviews> <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" translatesAutoresizingMaskIntoConstraints="NO" id="xz8-fG-Fzh"> <rect key="frame" x="0.0" y="0.0" width="320" height="180"/> </imageView> <imageView clipsSubviews="YES" userInteractionEnabled="NO" tag="3" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" translatesAutoresizingMaskIntoConstraints="NO" id="NKG-S3-3dE"> <rect key="frame" x="0.0" y="0.0" width="320" height="180"/> </imageView> <label opaque="NO" userInteractionEnabled="NO" tag="4" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="无设备" textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="IPj-jj-q27"> <rect key="frame" x="16" y="58" width="288" height="20"/> <fontDescription key="fontDescription" name="PingFangSC-Regular" family="PingFang SC" pointSize="14"/> <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/> <nil key="highlightedColor"/> </label> <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Nje-Cx-Goc"> <rect key="frame" x="126" y="95.5" width="68" height="29"/> <fontDescription key="fontDescription" name="PingFangSC-Regular" family="PingFang SC" pointSize="12"/> <state key="normal"> <color key="titleColor" white="1" alpha="1" colorSpace="calibratedWhite"/> </state> <userDefinedRuntimeAttributes> <userDefinedRuntimeAttribute type="number" keyPath="layer.cornerRadius"> <integer key="value" value="14"/> </userDefinedRuntimeAttribute> </userDefinedRuntimeAttributes> </button> <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="查看帮助" textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="M48-Ji-2wd"> <rect key="frame" x="136" y="95.5" width="48" height="29"/> <fontDescription key="fontDescription" name="PingFangSC-Regular" family="PingFang SC" pointSize="12"/> <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/> <nil key="highlightedColor"/> <userDefinedRuntimeAttributes> <userDefinedRuntimeAttribute type="string" keyPath="localizedKey" value="deviceListOfflineNeedHelp"/> </userDefinedRuntimeAttributes> </label> <view clipsSubviews="YES" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="E37-JZ-yKU"> <rect key="frame" x="0.0" y="156" width="320" height="24"/> <subviews> <view userInteractionEnabled="NO" contentMode="center" translatesAutoresizingMaskIntoConstraints="NO" id="47L-L9-0LA" customClass="GradientView" customModule="OmadaSurveillance" customModuleProvider="target"> <rect key="frame" x="0.0" y="0.0" width="320" height="24"/> <userDefinedRuntimeAttributes> <userDefinedRuntimeAttribute type="color" keyPath="startColor"> <color key="value" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/> </userDefinedRuntimeAttribute> <userDefinedRuntimeAttribute type="color" keyPath="endColor"> <color key="value" red="0.0" green="0.0" blue="0.0" alpha="0.69999999999999996" colorSpace="custom" customColorSpace="sRGB"/> </userDefinedRuntimeAttribute> <userDefinedRuntimeAttribute type="number" keyPath="startLocation"> <real key="value" value="0.0"/> </userDefinedRuntimeAttribute> <userDefinedRuntimeAttribute type="number" keyPath="endLocation"> <real key="value" value="1"/> </userDefinedRuntimeAttribute> <userDefinedRuntimeAttribute type="boolean" keyPath="horizontalMode" value="NO"/> </userDefinedRuntimeAttributes> </view> <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Label" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="leW-L6-18B"> <rect key="frame" x="10" y="5" width="304" height="18"/> <fontDescription key="fontDescription" name="PingFangSC-Regular" family="PingFang SC" pointSize="13"/> <color key="textColor" white="1" alpha="1" colorSpace="calibratedWhite"/> <nil key="highlightedColor"/> </label> </subviews> <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/> <constraints> <constraint firstItem="47L-L9-0LA" firstAttribute="height" secondItem="E37-JZ-yKU" secondAttribute="height" id="6Ny-zy-PcH"/> <constraint firstItem="47L-L9-0LA" firstAttribute="width" secondItem="E37-JZ-yKU" secondAttribute="width" id="K1Y-Xp-eE2"/> <constraint firstItem="leW-L6-18B" firstAttribute="centerY" secondItem="47L-L9-0LA" secondAttribute="centerY" constant="2" id="L0h-bw-mgz"/> <constraint firstAttribute="trailing" secondItem="leW-L6-18B" secondAttribute="trailing" constant="6" id="N9c-a8-JQn"/> <constraint firstItem="47L-L9-0LA" firstAttribute="centerX" secondItem="E37-JZ-yKU" secondAttribute="centerX" id="b8h-2m-cGW"/> <constraint firstItem="47L-L9-0LA" firstAttribute="centerY" secondItem="E37-JZ-yKU" secondAttribute="centerY" id="dVg-dL-ZJk"/> <constraint firstAttribute="height" constant="24" id="dzw-JL-iJb"/> <constraint firstItem="leW-L6-18B" firstAttribute="leading" secondItem="E37-JZ-yKU" secondAttribute="leading" constant="10" id="u2h-nX-4om"/> </constraints> <userDefinedRuntimeAttributes> <userDefinedRuntimeAttribute type="number" keyPath="layer.cornerRadius"> <integer key="value" value="2"/> </userDefinedRuntimeAttribute> </userDefinedRuntimeAttributes> </view> </subviews> <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="calibratedWhite"/> <constraints> <constraint firstItem="xz8-fG-Fzh" firstAttribute="top" secondItem="cT9-nk-Xp8" secondAttribute="top" id="1Wm-wR-qFi"/> <constraint firstItem="Nje-Cx-Goc" firstAttribute="top" secondItem="M48-Ji-2wd" secondAttribute="top" id="4kL-sl-stz"/> <constraint firstAttribute="trailing" secondItem="E37-JZ-yKU" secondAttribute="trailing" id="BdB-Vr-tNg"/> <constraint firstAttribute="bottom" secondItem="E37-JZ-yKU" secondAttribute="bottom" id="CFt-QM-g3k"/> <constraint firstAttribute="trailing" relation="greaterThanOrEqual" secondItem="M48-Ji-2wd" secondAttribute="trailing" constant="20" id="E26-0A-g7b"/> <constraint firstItem="Nje-Cx-Goc" firstAttribute="trailing" secondItem="M48-Ji-2wd" secondAttribute="trailing" constant="10" id="EGS-5w-RyC"/> <constraint firstAttribute="trailing" secondItem="NKG-S3-3dE" secondAttribute="trailing" id="GWn-JE-onB"/> <constraint firstItem="M48-Ji-2wd" firstAttribute="centerX" secondItem="cT9-nk-Xp8" secondAttribute="centerX" id="Lfo-n0-nYI"/> <constraint firstItem="Nje-Cx-Goc" firstAttribute="leading" secondItem="M48-Ji-2wd" secondAttribute="leading" constant="-10" id="Mt1-JD-EeK"/> <constraint firstItem="E37-JZ-yKU" firstAttribute="leading" secondItem="cT9-nk-Xp8" secondAttribute="leading" id="PJQ-t8-1KJ"/> <constraint firstItem="xz8-fG-Fzh" firstAttribute="leading" secondItem="cT9-nk-Xp8" secondAttribute="leading" id="Pzh-yI-2gq"/> <constraint firstItem="IPj-jj-q27" firstAttribute="centerX" secondItem="NKG-S3-3dE" secondAttribute="centerX" id="QQH-WM-Nkj"/> <constraint firstAttribute="bottom" secondItem="xz8-fG-Fzh" secondAttribute="bottom" id="SKX-wM-8qw"/> <constraint firstItem="IPj-jj-q27" firstAttribute="centerY" secondItem="NKG-S3-3dE" secondAttribute="centerY" priority="750" constant="-22" id="US4-Wl-926"/> <constraint firstItem="M48-Ji-2wd" firstAttribute="leading" relation="greaterThanOrEqual" secondItem="cT9-nk-Xp8" secondAttribute="leading" constant="20" id="XS9-Sy-O6P"/> <constraint firstItem="NKG-S3-3dE" firstAttribute="leading" secondItem="cT9-nk-Xp8" secondAttribute="leading" id="hfr-B1-ZVB"/> <constraint firstItem="M48-Ji-2wd" firstAttribute="centerY" secondItem="cT9-nk-Xp8" secondAttribute="centerY" constant="20" id="jOY-kH-A0e"/> <constraint firstAttribute="trailing" secondItem="xz8-fG-Fzh" secondAttribute="trailing" id="kaA-A6-AQO"/> <constraint firstItem="Nje-Cx-Goc" firstAttribute="bottom" secondItem="M48-Ji-2wd" secondAttribute="bottom" id="q83-m3-toC"/> <constraint firstAttribute="trailing" secondItem="IPj-jj-q27" secondAttribute="trailing" constant="16" id="tFL-eu-jI7"/> <constraint firstAttribute="bottom" secondItem="NKG-S3-3dE" secondAttribute="bottom" id="tPl-4f-P4v"/> <constraint firstItem="NKG-S3-3dE" firstAttribute="top" secondItem="cT9-nk-Xp8" secondAttribute="top" id="wte-pZ-zhU"/> <constraint firstItem="IPj-jj-q27" firstAttribute="leading" secondItem="cT9-nk-Xp8" secondAttribute="leading" constant="16" id="yb2-74-gry"/> </constraints> <nil key="simulatedTopBarMetrics"/> <nil key="simulatedBottomBarMetrics"/> <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/> <userDefinedRuntimeAttributes> <userDefinedRuntimeAttribute type="number" keyPath="layer.cornerRadius"> <integer key="value" value="2"/> </userDefinedRuntimeAttribute> </userDefinedRuntimeAttributes> <connections> <outlet property="coverBGLeadingConst" destination="Pzh-yI-2gq" id="wVr-nc-mGv"/> <outlet property="coverBGTrailConst" destination="kaA-A6-AQO" id="YHb-MM-Xit"/> <outlet property="coverImageView" destination="xz8-fG-Fzh" id="rDt-eA-xUR"/> <outlet property="helpButton" destination="Nje-Cx-Goc" id="Au6-it-2Uq"/> <outlet property="helpLabel" destination="M48-Ji-2wd" id="dfS-FV-TeN"/> <outlet property="labelToCenterConstraint" destination="US4-Wl-926" id="P3u-Z3-u3t"/> <outlet property="maskImageView" destination="NKG-S3-3dE" id="wXQ-8q-kEu"/> <outlet property="maskLabel" destination="IPj-jj-q27" id="SUE-Tl-DHg"/> <outlet property="nvrChannelNameContainer" destination="E37-JZ-yKU" id="CdG-LV-uFO"/> <outlet property="nvrChannelNameLabel" destination="leW-L6-18B" id="6Wf-Wj-Lej"/> </connections> <point key="canvasLocation" x="139" y="121"/> </view> </objects> </document>
12-09
我发给你xib文件内容 <?xml version="1.0" encoding="UTF-8"?> <document type="com.apple.InterfaceBuilder3.CocoaTouch.XIB" version="3.0" toolsVersion="22505" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" colorMatched="YES"> <device id="retina6_1" orientation="portrait" appearance="light"/> <dependencies> <deployment identifier="iOS"/> <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="22504"/> <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/> </dependencies> <objects> <placeholder placeholderIdentifier="IBFilesOwner" id="-1" userLabel="File's Owner"/> <placeholder placeholderIdentifier="IBFirstResponder" id="-2" customClass="UIResponder"/> <view clipsSubviews="YES" contentMode="scaleToFill" id="cT9-nk-Xp8" customClass="CoverImageBigContainerView" customModule="OmadaSurveillance" customModuleProvider="target"> <rect key="frame" x="0.0" y="0.0" width="320" height="180"/> <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/> <subviews> <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" translatesAutoresizingMaskIntoConstraints="NO" id="xz8-fG-Fzh"> <rect key="frame" x="0.0" y="0.0" width="320" height="180"/> </imageView> <imageView clipsSubviews="YES" userInteractionEnabled="NO" tag="3" contentMode="scaleToFill" horizontalHuggingPriority="251" verticalHuggingPriority="251" translatesAutoresizingMaskIntoConstraints="NO" id="NKG-S3-3dE"> <rect key="frame" x="0.0" y="0.0" width="320" height="180"/> </imageView> <label opaque="NO" userInteractionEnabled="NO" tag="4" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="无设备" textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="IPj-jj-q27"> <rect key="frame" x="16" y="58" width="288" height="20"/> <fontDescription key="fontDescription" name="PingFangSC-Regular" family="PingFang SC" pointSize="14"/> <color key="textColor" red="1" green="1" blue="1" alpha="1" colorSpace="calibratedRGB"/> <nil key="highlightedColor"/> </label> <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Nje-Cx-Goc"> <rect key="frame" x="126" y="95.5" width="68" height="29"/> <fontDescription key="fontDescription" name="PingFangSC-Regular" family="PingFang SC" pointSize="12"/> <state key="normal"> <color key="titleColor" white="1" alpha="1" colorSpace="calibratedWhite"/> </state> <userDefinedRuntimeAttributes> <userDefinedRuntimeAttribute type="number" keyPath="layer.cornerRadius"> <integer key="value" value="14"/> </userDefinedRuntimeAttribute> </userDefinedRuntimeAttributes> </button> <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="查看帮助" textAlignment="center" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="M48-Ji-2wd"> <rect key="frame" x="136" y="95.5" width="48" height="29"/> <fontDescription key="fontDescription" name="PingFangSC-Regular" family="PingFang SC" pointSize="12"/> <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/> <nil key="highlightedColor"/> <userDefinedRuntimeAttributes> <userDefinedRuntimeAttribute type="string" keyPath="localizedKey" value="deviceListOfflineNeedHelp"/> </userDefinedRuntimeAttributes> </label> <view clipsSubviews="YES" contentMode="scaleToFill" translatesAutoresizingMaskIntoConstraints="NO" id="E37-JZ-yKU"> <rect key="frame" x="0.0" y="156" width="320" height="24"/> <subviews> <view userInteractionEnabled="NO" contentMode="center" translatesAutoresizingMaskIntoConstraints="NO" id="47L-L9-0LA" customClass="GradientView" customModule="OmadaSurveillance" customModuleProvider="target"> <rect key="frame" x="0.0" y="0.0" width="320" height="24"/> <userDefinedRuntimeAttributes> <userDefinedRuntimeAttribute type="color" keyPath="startColor"> <color key="value" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/> </userDefinedRuntimeAttribute> <userDefinedRuntimeAttribute type="color" keyPath="endColor"> <color key="value" red="0.0" green="0.0" blue="0.0" alpha="0.69999999999999996" colorSpace="custom" customColorSpace="sRGB"/> </userDefinedRuntimeAttribute> <userDefinedRuntimeAttribute type="number" keyPath="startLocation"> <real key="value" value="0.0"/> </userDefinedRuntimeAttribute> <userDefinedRuntimeAttribute type="number" keyPath="endLocation"> <real key="value" value="1"/> </userDefinedRuntimeAttribute> <userDefinedRuntimeAttribute type="boolean" keyPath="horizontalMode" value="NO"/> </userDefinedRuntimeAttributes> </view> <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Label" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="leW-L6-18B"> <rect key="frame" x="10" y="5" width="304" height="18"/> <fontDescription key="fontDescription" name="PingFangSC-Regular" family="PingFang SC" pointSize="13"/> <color key="textColor" white="1" alpha="1" colorSpace="calibratedWhite"/> <nil key="highlightedColor"/> </label> </subviews> <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/> <constraints> <constraint firstItem="47L-L9-0LA" firstAttribute="height" secondItem="E37-JZ-yKU" secondAttribute="height" id="6Ny-zy-PcH"/> <constraint firstItem="47L-L9-0LA" firstAttribute="width" secondItem="E37-JZ-yKU" secondAttribute="width" id="K1Y-Xp-eE2"/> <constraint firstItem="leW-L6-18B" firstAttribute="centerY" secondItem="47L-L9-0LA" secondAttribute="centerY" constant="2" id="L0h-bw-mgz"/> <constraint firstAttribute="trailing" secondItem="leW-L6-18B" secondAttribute="trailing" constant="6" id="N9c-a8-JQn"/> <constraint firstItem="47L-L9-0LA" firstAttribute="centerX" secondItem="E37-JZ-yKU" secondAttribute="centerX" id="b8h-2m-cGW"/> <constraint firstItem="47L-L9-0LA" firstAttribute="centerY" secondItem="E37-JZ-yKU" secondAttribute="centerY" id="dVg-dL-ZJk"/> <constraint firstAttribute="height" constant="24" id="dzw-JL-iJb"/> <constraint firstItem="leW-L6-18B" firstAttribute="leading" secondItem="E37-JZ-yKU" secondAttribute="leading" constant="10" id="u2h-nX-4om"/> </constraints> <userDefinedRuntimeAttributes> <userDefinedRuntimeAttribute type="number" keyPath="layer.cornerRadius"> <integer key="value" value="2"/> </userDefinedRuntimeAttribute> </userDefinedRuntimeAttributes> </view> </subviews> <color key="backgroundColor" white="0.0" alpha="0.0" colorSpace="calibratedWhite"/> <constraints> <constraint firstItem="xz8-fG-Fzh" firstAttribute="top" secondItem="cT9-nk-Xp8" secondAttribute="top" id="1Wm-wR-qFi"/> <constraint firstItem="Nje-Cx-Goc" firstAttribute="top" secondItem="M48-Ji-2wd" secondAttribute="top" id="4kL-sl-stz"/> <constraint firstAttribute="trailing" secondItem="E37-JZ-yKU" secondAttribute="trailing" id="BdB-Vr-tNg"/> <constraint firstAttribute="bottom" secondItem="E37-JZ-yKU" secondAttribute="bottom" id="CFt-QM-g3k"/> <constraint firstAttribute="trailing" relation="greaterThanOrEqual" secondItem="M48-Ji-2wd" secondAttribute="trailing" constant="20" id="E26-0A-g7b"/> <constraint firstItem="Nje-Cx-Goc" firstAttribute="trailing" secondItem="M48-Ji-2wd" secondAttribute="trailing" constant="10" id="EGS-5w-RyC"/> <constraint firstAttribute="trailing" secondItem="NKG-S3-3dE" secondAttribute="trailing" id="GWn-JE-onB"/> <constraint firstItem="M48-Ji-2wd" firstAttribute="centerX" secondItem="cT9-nk-Xp8" secondAttribute="centerX" id="Lfo-n0-nYI"/> <constraint firstItem="Nje-Cx-Goc" firstAttribute="leading" secondItem="M48-Ji-2wd" secondAttribute="leading" constant="-10" id="Mt1-JD-EeK"/> <constraint firstItem="E37-JZ-yKU" firstAttribute="leading" secondItem="cT9-nk-Xp8" secondAttribute="leading" id="PJQ-t8-1KJ"/> <constraint firstItem="xz8-fG-Fzh" firstAttribute="leading" secondItem="cT9-nk-Xp8" secondAttribute="leading" id="Pzh-yI-2gq"/> <constraint firstItem="IPj-jj-q27" firstAttribute="centerX" secondItem="NKG-S3-3dE" secondAttribute="centerX" id="QQH-WM-Nkj"/> <constraint firstAttribute="bottom" secondItem="xz8-fG-Fzh" secondAttribute="bottom" id="SKX-wM-8qw"/> <constraint firstItem="IPj-jj-q27" firstAttribute="centerY" secondItem="NKG-S3-3dE" secondAttribute="centerY" priority="750" constant="-22" id="US4-Wl-926"/> <constraint firstItem="M48-Ji-2wd" firstAttribute="leading" relation="greaterThanOrEqual" secondItem="cT9-nk-Xp8" secondAttribute="leading" constant="20" id="XS9-Sy-O6P"/> <constraint firstItem="NKG-S3-3dE" firstAttribute="leading" secondItem="cT9-nk-Xp8" secondAttribute="leading" id="hfr-B1-ZVB"/> <constraint firstItem="M48-Ji-2wd" firstAttribute="centerY" secondItem="cT9-nk-Xp8" secondAttribute="centerY" constant="20" id="jOY-kH-A0e"/> <constraint firstAttribute="trailing" secondItem="xz8-fG-Fzh" secondAttribute="trailing" id="kaA-A6-AQO"/> <constraint firstItem="Nje-Cx-Goc" firstAttribute="bottom" secondItem="M48-Ji-2wd" secondAttribute="bottom" id="q83-m3-toC"/> <constraint firstAttribute="trailing" secondItem="IPj-jj-q27" secondAttribute="trailing" constant="16" id="tFL-eu-jI7"/> <constraint firstAttribute="bottom" secondItem="NKG-S3-3dE" secondAttribute="bottom" id="tPl-4f-P4v"/> <constraint firstItem="NKG-S3-3dE" firstAttribute="top" secondItem="cT9-nk-Xp8" secondAttribute="top" id="wte-pZ-zhU"/> <constraint firstItem="IPj-jj-q27" firstAttribute="leading" secondItem="cT9-nk-Xp8" secondAttribute="leading" constant="16" id="yb2-74-gry"/> </constraints> <nil key="simulatedTopBarMetrics"/> <nil key="simulatedBottomBarMetrics"/> <freeformSimulatedSizeMetrics key="simulatedDestinationMetrics"/> <userDefinedRuntimeAttributes> <userDefinedRuntimeAttribute type="number" keyPath="layer.cornerRadius"> <integer key="value" value="2"/> </userDefinedRuntimeAttribute> </userDefinedRuntimeAttributes> <connections> <outlet property="coverBGLeadingConst" destination="Pzh-yI-2gq" id="wVr-nc-mGv"/> <outlet property="coverBGTrailConst" destination="kaA-A6-AQO" id="YHb-MM-Xit"/> <outlet property="coverImageView" destination="xz8-fG-Fzh" id="rDt-eA-xUR"/> <outlet property="helpButton" destination="Nje-Cx-Goc" id="Au6-it-2Uq"/> <outlet property="helpLabel" destination="M48-Ji-2wd" id="dfS-FV-TeN"/> <outlet property="labelToCenterConstraint" destination="US4-Wl-926" id="P3u-Z3-u3t"/> <outlet property="maskImageView" destination="NKG-S3-3dE" id="wXQ-8q-kEu"/> <outlet property="maskLabel" destination="IPj-jj-q27" id="SUE-Tl-DHg"/> <outlet property="nvrChannelNameContainer" destination="E37-JZ-yKU" id="CdG-LV-uFO"/> <outlet property="nvrChannelNameLabel" destination="leW-L6-18B" id="6Wf-Wj-Lej"/> </connections> <point key="canvasLocation" x="139" y="121"/> </view> </objects> </document>
12-09
根据您提供的信号名称 `PF_PM_PCH_PWROK_HI`,这个信号的作用可能是指示 PCH(Platform Controller Hub)的电源状态。 具体功能和作用可能如下: 1. PF:可能代表电源风扇(Power Fan)或者是特定系统中的标识。 2. PM:可能代表电源管理(Power Management),负责管理系统的电源供应和功耗。 3. PCH:代表平台控制器集线器(Platform Controller Hub),是一种芯片组,负责管理和协调计算机系统中的各种硬件设备和接口。 4. PWROK:表示电源就绪(Power OK),表示特定设备或组件的电源已经准备好。 5. HI:可能代表高电平(High),表示特定状态或条件的高电平状态。 通过信号 `PF_PM_PCH_PWROK_HI`,可能可以指示 PCH 的电源状态。当 `PF_PM_PCH_PWROK_HI` 为高电平时,表示 PCH 的电源已经准备好;当为低电平时,表示 PCH 的电源未就绪或存在异常。 这个信号在系统中通常用于监测 PCH 的电源状态,以便根据需要进行相应的处理。例如,在系统启动过程中,当 PCH 的电源就绪时,其他组件或系统可以根据该状态进行相应的操作,如启动其他设备、初始化接口等。 请注意,具体的功能和实现细节需要根据整个系统的设计和代码上下文来确定,以上只是根据给出的信号名称进行推测。实际的功能和操作可能与此有所不同。如果您能提供更多关于该信号的上下文信息,我将能够给予更准确的回答。
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