React Native:迁移到 AndroidX [英] React Native: Migrate to AndroidX

问题描述

我今天运行了我的 Android RN 项目，但出现以下错误

I ran my Android RN project today and was presented with the following error

Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'.
> com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives: 
  Learn how to resolve the issue at https://developer.android.com/studio/build/dependencies#duplicate_classes.
  Program type already present: android.support.v4.app.INotificationSideChannel$Stub

我认为为了解决这个问题，需要迁移到AndroidX.

I believe that in order to resolve this, it is required to migrate to AndroidX.

我备份了我的项目并尝试使用 Android Studio 进行操作，但无济于事.我还尝试在我的 gradle.properties 文件

I backed up my project and attempted to do it with Android Studio to no avail. I also tried setting it manually in my gradle.properties file

android.enableJetifier=true
android.useAndroidX=true

此后，我尝试从我的 app/build.gradle 中删除支持的库，并将目标 targetSdkVersion 设置为 28.

After this I tried removing supported libraries from my app/build.gradle, as well as setting targeted targetSdkVersion to 28.

这些尝试给我带来了更多的错误，尤其是这个

These attempts resulted in more errors for me, specifically this one

任务 ':react-native-navigation:compileReactNative57_5DebugJavaWithJavac' 执行失败.

我正在使用 React Native 0.58.6 和 Wix Navigation V2.非常感谢您的帮助

I am using React Native 0.58.6 with Wix Navigation V2. Help would be much appreciated

推荐答案

昨天遇到了同样的问题，终于解决了，上面的错误原因是你的android项目迁移到androidx后，你的很多react-本机库提供本机 Java 代码并且尚未更新，我可以通过使用此库 jetifier 来解决它通过运行

I ran into the same problem yesterday and finally figured it out, the reason of the above error is after migrating your android project to androidx, many of your react-native libraries ship native Java code and have not updated, I was able to solve it by using this library jetifier simply by running

npm i --save-dev jetifier
npx jetify

但就我而言，仍有一些库导致了一些问题，例如我们react-native-fast-image 作为一种解决方法，我在/中创建了一个 gradle.propertiesnode_modules/react-native-fast-image/android 并为此模块停用 AndroidX 和 Jetifier:

but in my case there were still some libraries causing some issues such us react-native-fast-image as a workaround, I created a gradle.properties inside /node_modules/react-native-fast-image/android and deactivated AndroidX and Jetifier for this module:

android.useAndroidX=false
android.enableJetifier=false

这篇关于React Native:迁移到 AndroidX的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！