flutter APP 编译运行时报 package androidx && AAPT 、AAPT2 && parsing resources

Android compileSdkVersion 大于等于28时，之前所有的 packages全部由androidx代替，如果flutter app 编译输出类似下面的日志

This version of image_picker will break your Android build if it or its dependencies aren't compatible with AndroidX.

毫不怀疑的是：包引入的版本冲突问题。

解决方法一：
把当前工程合并为AndroidX

1. In android/gradle/wrapper/ change the line starting with distributionUrl like this

distributionUrl=https\:///distributions/gradle-4.10.

2. In android/, replace:

dependencies {
    classpath ':gradle:3.3.0'
}

3. In android/, append

=true
=true

4. In android/app/:

make sure compileSdkVersion and targetSdkVersion are at least 28.

5. android/app/中的dependencies里，用androidx代替

androidTestImplementation ':runner:1.0.2'
androidTestImplementation ':espresso-core:3.0.2'

转换为：

 androidTestImplementation ':runner:1.0.2'
    androidTestImplementation ':espresso-core:3.1.1'

解决方法二：
避开AndroidX
之所以不能正常运行，其实也是因为你在引入过高版本的依赖。下面给出一些常用在版本28之下的dart package

• android_alarm_manager: 0.2.3
• android_intent: 0.2.1
• battery: 0.3.0
• camera: 0.2.9+1
• cloud_firestore: 0.8.2+3
• cloud_functions: 0.0.5
• connectivity: 0.3.2
• device_info: 0.3.0
• firebase_admob: 0.7.0
• firebase_analytics: 1.1.0
• firebase_auth: 0.7.0
• firebase_core: 0.2.5+1
• firebase_database: 1.0.5
• firebase_dynamic_links: 0.1.1
• firebase_messaging: 2.1.0
• firebase_ml_vision: 0.2.1
• firebase_performance: 0.0.8+1
• firebase_remote_config: 0.0.6+1
• firebase_storage: 1.0.4
• google_maps_flutter: 0.1.0
• google_sign_in: 3.2.4
• image_picker: 0.4.12+1
• local_auth: 0.3.1
• package_info: 0.3.2+1
• path_provider: 0.4.1
• quick_actions: 0.2.2
• sensors: 0.3.5
• share: 0.5.3
• shared_preferences: 0.4.3
• url_launcher: 4.1.0+1
• video_player: 0.9.0
• webview_flutter: 0.2.0
  有兴趣的话，可以看看官方介绍/docs/development/packages-and-plugins/androidx-compatibility