打apk：配置和android一样

release包：flutter build apk  默认等同于 flutter build apk --release

debug包:flutter build apk --debug

apk 路径在项目的build文件夹在，这个文件在android studio目录结构中没有显示

安装：直接执行 flutter  install

安装成功后打开闪退：/lib/arm64-v8a, /system/lib64, /vendor/lib64]]] couldn't find "libflutter.so"

设置如下
release {
    // TODO: Add your own signing config for the release build.
    // Signing with the debug keys for now, so `flutter run --release` works.
    signingConfig signingConfigs.debug
    ndk { abiFilters "armeabi-v7a" }

}

如果想更改android sdk的版本号，找到flutter文件下的Flutter\flutter_windows_3.0.1-stable\flutter\packages\flutter_tools\gradle\flutter 文件，修改里面对应的内容