amap_base 和image_picker andoridX 问题

报错内容

 flutter Error “Android dependency 'androidx.core:core' has 
different version” using flutter_local_notifications and location 
packages](https://stackoverflow.com/questions/54823084/flutter-
error-android-dependency-androidx-corecore-has-different-version-us)

问题描述

Android code often uses the [`android.support`](https://developer.android.com/topic/libraries/support-library/) libraries to ensure backwards compatibility. The `android.support` libraries are deprecated, and replaced with [AndroidX](https://developer.android.com/jetpack/androidx/). AndroidX has feature parity with the old libraries with some additional capabilities but, unfortunately, these two sets of libraries are incompatible.

*Gradle crashes when trying to build an APK that relies on both sets of libraries.* This page explains how you can workaround this issue.

## [](https://flutter.dev/docs/development/packages-and-plugins/androidx-compatibility#fixing-androidx-crashes-in-a-flutter-app)

大致意思是说官方把android支持库升级成androidx，两者不兼容

解决办法

1.flutter 插件最新版本（主要是最新版的一般是值支持andoridX）

2. 设置支持andoridX
   具体步骤如下：

在 android/gradle/wrapper/gradle-wrapper.properties

distributionUrl=https://services.gradle.org/distributions/gradle-4.10.2-all.zip

在 android/build.gradle

dependencies { classpath 'com.android.tools.build:gradle:3.3.0' }

其中的 buildscript { (if it includes kotlin)

ext.kotlin_version = '1.3.0'

在 android/gradle.properties, append

android.enableJetifier=true
android.useAndroidX=true

在 android/app/build.gradle:

compileSdkVersion  28 #至少28
targetSdkVersion  28  #至少28

testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"

下面的 dependencies 中

androidTestImplementation 'androidx.test:runner:1.1.1'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
implementation 'com.android.support:multidex:1.0.3'

其中 defaultConfig 添加

multiDexEnabled true