aar怎么用 flutter_生成flutter android端aar中间件

使用fat-aar(com.kezong.fat-aar) 配合flutter package项目生成nativie项目中间件aar

1，.android项目内跟目录的build.gradle 添加如下：

dependencies {

classpath 'com.android.tools.build:gradle:3.2.1'

// classpath "com.mobbeel.plugin:fat-aar:2.0.3"//这个使用出现bug

classpath 'com.kezong:fat-aar:1.1.7'//fat arr打包arr中间件

}

2,.android项目内Flutter/build.gradle

加入 apply plugin: 'com.kezong.fat-aar'

dependencies 加入依赖插件 例如：

embed project(path: ':connectivity', configuration:'default')

embed project(path: ':flutter_statusbar', configuration:'default')

embed project(path: ':fluttertoast', configuration:'default')

embed project(path: ':path_provider', configuration:'default')

embed project(path: ':shared_preferences', configuration:'default')

embed project(path: ':url_launcher', configuration:'default')

3，执行命令 flutter build apk

打印部分信息如下：

【Fat-aar-INFO】[embed detected][aar]io.flutter.plugins.connectivity:connectivity:1.0-SNAPSHOT

【Fat-aar-INFO】[embed detected][aar]com.example.flutterstatusbar:flutter_statusbar:1.0-SNAPSHOT

【Fat-aar-INFO】[embed detected][aar]io.github.ponnamkarthik.toast.fluttertoast:fluttertoast:1.0-SNAPSHOT

【Fat-aar-INFO】[embed detected][aar]io.flutter.plugins.pathprovider:path_provider:1.0-SNAPSHOT

【Fat-aar-INFO】[embed detected][aar]io.flutter.plugins.sharedpreferences:shared_preferences:1.0-SNAPSHOT

【Fat-aar-INFO】[embed detected][aar]io.flutter.plugins.urllauncher:url_launcher:1.0-SNAPSHOT

【Fat-aar-INFO】Merge resource，Library res：/Users/conghl/flutter/.android/Flutter/build/intermediates/exploded-aar/com.example.flutterstatusbar/flutter_statusbar/1.0-SNAPSHOT/res

【Fat-aar-INFO】Merge resource，Library res：/Users/conghl/flutter/.android/Flutter/build/intermediates/exploded-aar/io.flutter.plugins.pathprovider/path_provider/1.0-SNAPSHOT/res

【Fat-aar-INFO】Merge resource，Library res：/Users/conghl/flutter/.android/Flutter/build/intermediates/exploded-aar/io.github.ponnamkarthik.toast.fluttertoast/fluttertoast/1.0-SNAPSHOT/res

【Fat-aar-INFO】Merge resource，Library res：/Users/conghl/flutter/.android/Flutter/build/intermediates/exploded-aar/io.flutter.plugins.urllauncher/url_launcher/1.0-SNAPSHOT/res

【Fat-aar-INFO】Merge resource，Library res：/Users/conghl/flutter/.android/Flutter/build/intermediates/exploded-aar/io.flutter.plugins.connectivity/connectivity/1.0-SNAPSHOT/res

【Fat-aar-INFO】Merge resource，Library res：/Users/conghl/flutter/.android/Flutter/build/intermediates/exploded-aar/io.flutter.plugins.sharedpreferences/shared_preferences/1.0-SNAPSHOT/res

【Fat-aar-INFO】Merge classes

【Fat-aar-INFO】[androidLibrary]flutter_statusbar

【Fat-aar-INFO】[androidLibrary]path_provider

【Fat-aar-INFO】[androidLibrary]fluttertoast

【Fat-aar-INFO】[androidLibrary]url_launcher

【Fat-aar-INFO】[androidLibrary]connectivity

【Fat-aar-INFO】[androidLibrary]shared_preferences

【Fat-aar-INFO】Merge jars

【Fat-aar-INFO】Not found jar file, Library:flutter_statusbar

【Fat-aar-INFO】Not found jar file, Library:path_provider

【Fat-aar-INFO】Not found jar file, Library:fluttertoast

【Fat-aar-INFO】Not found jar file, Library:url_launcher

【Fat-aar-INFO】Not found jar file, Library:connectivity

【Fat-aar-INFO】Not found jar file, Library:shared_preferences

【Fat-aar-INFO】Generate R File, Library:flutter_statusbar

【Fat-aar-INFO】Generate R File, Library:path_provider

【Fat-aar-INFO】Generate R File, Library:fluttertoast

【Fat-aar-INFO】Generate R File, Library:url_launcher

【Fat-aar-INFO】Generate R File, Library:connectivity

【Fat-aar-INFO】Generate R File, Library:shared_preferences

【Fat-aar-INFO】Compile R.class, Dir:/Users/conghl/flutter/.android/Flutter/build/intermediates/exploded-aar/r

【Fat-aar-INFO】Generate R.jar, Dir：/Users/conghl/flutter/.android/Flutter/build/intermediates/exploded-aar/r-class

【Fat-aar-INFO】reBundle final aar, from:/Users/conghl/flutter/.android/Flutter/build/outputs/aar-R/release

【Fat-aar-INFO】reBundle final aar, target:/Users/conghl/flutter/.android/Flutter/build/outputs/aar/flutter-release.aar

4，最后一行内的文件即为android中间件文件，拷贝到native项目libs文件内。

D8: Program type already present: ******

出现这个错误将.android/Flutter/build 文件删除重新编译即可

native项目修改

1，将aar文件拷贝到libs文件内

2，app/build.gradle

dependencies {

...

api(name: 'flutter-release', ext: 'aar')

...

...

}

3，project/build.gradle

allprojects {

repositories {

......

flatDir {

dirs 'libs' // aar目录

}

......

}

}

多渠道aar: flutter build apk --flavor XXX