能够在iOS和Android中使用字体字体修饰符,例如fontWeight和fontStyle与自定义字体家族结合使用。
< Text style = { {
fontFamily : "Raleway" ,
fontWeight : "100" ,
style : "italic"
} } >
Hello world!
</ Text >
< Text style = { {
fontFamily : "Raleway" ,
fontWeight : "bold" ,
style : "normal"
} } >
Hello world !
< / Text >在此示例中,我们将注册Raleway字体家庭。当然,此方法将使用任何TTF字体。
您需要在临时文件夹中提取的整个Raleway字体系列。那是:
Raleway-Thin.ttf (100)Raleway-ThinItalic.ttfRaleway-ExtraLight.ttf (200)Raleway-ExtraLightItalic.ttfRaleway-Light.ttf (300)Raleway-LightItalic.ttfRaleway-Regular.ttf (400)Raleway-Italic.ttfRaleway-Medium.ttf (500)Raleway-MediumItalic.ttfRaleway-SemiBold.ttf (600)Raleway-SemiBoldItalic.ttfRaleway-Bold.ttf (700)Raleway-BoldItalic.ttfRaleway-ExtraBold.ttf (800)Raleway-ExtraBoldItalic.ttfRaleway-Black.ttf (900)Raleway-BlackItalic.ttf我们将假设这些文件现在存储在/tmp/raleway/ 。
您将需要系统中安装OTFINFO来执行此步骤。它带有许多Linux分布。在MacOS上,通过LCDF型酿造啤酒包进行安装。
otfinfo --family Raleway-Regular.ttf应该打印“ Raleway”。必须保留此值的Android设置。此名称将以fontFamily样式使用。
react-native init FontDemo
cd FontDemo对于Android,我们将使用XML字体来定义基本字体系列的变体。
备注:此过程可在React Native中获得,因为COMPL FD6386A07EB75A8EC16B1384A3E3E5827DEA520B64(2019年5月7日),并添加了
ReactFontManager::addCustomFont方法。
mkdir android/app/src/main/res/font
cp /tmp/raleway/ * .ttf android/app/src/main/res/font我们必须按照以下规则重命名字体文件,以符合Android资产名称限制:
_替换- ;您可以使用以下bash脚本(确保将字体文件夹作为第一个参数):
#! /bin/bash
# fixfonts.sh
typeset folder= " $1 "
if [[ -d " $folder " && ! -z " $folder " ]] ; then
pushd " $folder " ;
for file in * .ttf ; do
typeset normalized= " ${file // - / _} " ;
normalized= " ${normalized,,} " ;
mv " $file " " $normalized "
done
popd
fi ./fixfonts.sh /path/to/root/FontDemo/android/app/src/main/res/font使用以下内容创建android/app/src/main/res/font/raleway.xml文件。基本上,我们必须为我们希望支持的每个fontStyle / FontStyle / fontWeight组合创建一个条目,并注册相应的资产名称。
<? xml version = " 1.0 " encoding = " utf-8 " ?>
< font-family xmlns : app = " http://schemas.android.com/apk/res-auto " >
< font app : fontStyle = " normal " app : fontWeight = " 100 " app : font = " @font/raleway_thin " />
< font app : fontStyle = " italic " app : fontWeight = " 100 " app : font = " @font/raleway_thinitalic " />
< font app : fontStyle = " normal " app : fontWeight = " 200 " app : font = " @font/raleway_extralight " />
< font app : fontStyle = " italic " app : fontWeight = " 200 " app : font = " @font/raleway_extralightitalic " />
< font app : fontStyle = " normal " app : fontWeight = " 300 " app : font = " @font/raleway_light " />
< font app : fontStyle = " italic " app : fontWeight = " 300 " app : font = " @font/raleway_lightitalic " />
< font app : fontStyle = " normal " app : fontWeight = " 400 " app : font = " @font/raleway_regular " />
< font app : fontStyle = " italic " app : fontWeight = " 400 " app : font = " @font/raleway_italic " />
< font app : fontStyle = " normal " app : fontWeight = " 500 " app : font = " @font/raleway_medium " />
< font app : fontStyle = " italic " app : fontWeight = " 500 " app : font = " @font/raleway_mediumitalic " />
< font app : fontStyle = " normal " app : fontWeight = " 600 " app : font = " @font/raleway_semibold " />
< font app : fontStyle = " italic " app : fontWeight = " 600 " app : font = " @font/raleway_semibolditalic " />
< font app : fontStyle = " normal " app : fontWeight = " 700 " app : font = " @font/raleway_bold " />
< font app : fontStyle = " italic " app : fontWeight = " 700 " app : font = " @font/raleway_bolditalic " />
< font app : fontStyle = " normal " app : fontWeight = " 800 " app : font = " @font/raleway_extrabold " />
< font app : fontStyle = " italic " app : fontWeight = " 800 " app : font = " @font/raleway_extrabolditalic " />
< font app : fontStyle = " normal " app : fontWeight = " 900 " app : font = " @font/raleway_black " />
< font app : fontStyle = " italic " app : fontWeight = " 900 " app : font = " @font/raleway_blackitalic " />
</ font-family >在android/app/src/main/java/com/fontdemo/MainApplication.java中,使用我们刚刚在onCreate方法中创建的资产来绑定字体家族名称。
配x 如果要注册其他字体,请确保将“ Raleway”替换为前一步中的名称(查找字体姓氏)。
--- a/android/app/src/main/java/com/fontdemo/MainApplication.java
+++ b/android/app/src/main/java/com/fontdemo/MainApplication.java
@@ -7,6 +7,7 @@ import com.facebook.react.ReactApplication;
import com.facebook.react.ReactInstanceManager;
import com.facebook.react.ReactNativeHost;
import com.facebook.react.ReactPackage;
+ import com.facebook.react.views.text.ReactFontManager;
import com.facebook.soloader.SoLoader;
import java.lang.reflect.InvocationTargetException;
import java.util.List;
@@ -43,6 +44,7 @@ public class MainApplication extends Application implements ReactApplication {
@Override
public void onCreate() {
super.onCreate();
+ ReactFontManager.getInstance().addCustomFont(this, "Raleway", R.font.raleway);
SoLoader.init(this, /* native exopackage */ false);
initializeFlipper(this, getReactNativeHost().getReactInstanceManager());
}
在反应天然0.73+上
--- a/android/app/src/main/java/com/fontdemo/MainApplication.kt
+++ b/android/app/src/main/java/com/fontdemo/MainApplication.kt
import com.facebook.react.ReactApplication
import com.facebook.react.ReactHost
import com.facebook.react.ReactNativeHost
import com.facebook.react.ReactPackage
+ import com.facebook.react.common.assets.ReactFontManager
import com.facebook.react.defaults.DefaultNewArchitectureEntryPoint.load
import com.facebook.react.defaults.DefaultReactHost.getDefaultReactHost
import com.facebook.react.defaults.DefaultReactNativeHost
override fun onCreate() {
super.onCreate()
+ ReactFontManager.getInstance().addCustomFont(this, "Raleway", R.font.raleway);
SoLoader.init(this, false)
if (BuildConfig.IS_NEW_ARCHITECTURE_ENABLED) {
// If you opted-in for the New Architecture, we load the native entry point for this app.
load()
}
ReactNativeFlipper.initializeFlipper(this, reactNativeHost.reactInstanceManager)
}
在iOS上,事情会变得容易得多。我们基本上只需要使用React Native Asset Link功能。此方法要求我们将在第一步中检索到的字体家族名称作为fontFamily样式属性。
mkdir -p assets/fonts
cp /tmp/raleway/ * .ttf assets/fontsreact-native.config.js module . exports = {
project : {
ios : { } ,
android : { } ,
} ,
iosAssets : [ './assets/fonts' ] ,
} ; # react-native >= 0.69
npx react-native-asset
# otherwise
react-native link| ios | 安卓 |
|---|---|
![]() | ![]() |
如果您发现本指南相关,我将非常感谢您对此stackoverflow的答案进行投票。这也将有助于社区找出这一解决方案。干杯!