项目初始化
使用expo的“bare React Native app with Expo tools”，是因为我使用expo直接创建的项目在通过本地构建的时候报错。
npx create-expo-app --template bare-minimum直接使用create-expo-app项目在运行npx expo run:android --variant release的时候编译报错：
FAILURE: Build completed with 2 failures.
1: Task failed with an exception.
-----------
* Where:
Build file '/Users/liukun/Desktop/app1234/android/app/build.gradle' line: 2
* What went wrong:
A problem occurred evaluating project ':app'.
> Could not find implementation class 'com.facebook.react.ReactPlugin' for plugin 'com.facebook.react' specified in jar:file:/Users/liukun/.gradle/caches/jars-9/f47c830d8d52f951a5914d78738d6b24/react-native-gradle-plugin.jar!/META-INF/gradle-plugins/com.facebook.react.properties.
* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
==============================================================================
2: Task failed with an exception.
-----------
* What went wrong:
A problem occurred configuring project ':app'.
> compileSdkVersion is not specified. Please add it to build.gradle
* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
==============================================================================
* Get more help at https://help.gradle.org
BUILD FAILED in 6s
5 actionable tasks: 5 up-to-date
Error: /Users/liukun/Desktop/app1234/android/gradlew exited with non-zero code: 1
Error: /Users/liukun/Desktop/app1234/android/gradlew exited with non-zero code: 1
at ChildProcess.completionListener (/Users/liukun/Desktop/app1234/node_modules/@expo/spawn-async/build/spawnAsync.js:52:23)
at Object.onceWrapper (node:events:628:26)
at ChildProcess.emit (node:events:513:28)
at maybeClose (node:internal/child_process:1091:16)
at ChildProcess._handle.onexit (node:internal/child_process:302:5)
...
at Object.spawnAsync [as default] (/Users/liukun/Desktop/app1234/node_modules/@expo/spawn-async/build/spawnAsync.js:17:21)
at spawnGradleAsync (/Users/liukun/Desktop/app1234/node_modules/@expo/cli/build/src/start/platforms/android/gradle.js:72:46)
at Object.assembleAsync (/Users/liukun/Desktop/app1234/node_modules/@expo/cli/build/src/start/platforms/android/gradle.js:52:18)
at runAndroidAsync (/Users/liukun/Desktop/app1234/node_modules/@expo/cli/build/src/run/android/runAndroidAsync.js:31:24)
解决办法是修改android/gradle/wrapper/gradle-wrapper.properties中的版本将gradle从默认的7.5.1改为7.6.1
distributionUrl=https\://services.gradle.org/distributions/gradle-7.6.1-all.zip目前仅针对当前默认生成的版本：expo 48.0.15, react-native 0.71.7。后期如果出现问题也可以尝试从这方面考虑。
splash screen
npx expo-splash-screen -i assets/mysplash.png -b #ffffff查看使用帮助
npx expo-splash-screen --help运行
npm run android