Not incompatibilities androidX

[carl1990]

when ues androidx ,import this lib build failed with error info :

/Users/Carl/dev_soft/flutter/.pub-cache/hosted/pub.flutter-io.cn/fluttertoast-2.2.11/android/src/main/java/io/github/ponnamkarthik/toast/fluttertoast/FluttertoastPlugin.java:14: 错误: 程序包android.support.v4.content不存在
import android.support.v4.content.ContextCompat;
                                 ^
/Users/Carl/dev_soft/flutter/.pub-cache/hosted/pub.flutter-io.cn/fluttertoast-2.2.11/android/src/main/java/io/github/ponnamkarthik/toast/fluttertoast/FluttertoastPlugin.java:107: 错误: 找不到符号
          Drawable shapeDrawable = ContextCompat.getDrawable(ctx, R.drawable.toast_bg);
                                   ^
  符号:   变量 ContextCompat
  位置: 类 FluttertoastPlugin
2 个错误

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':fluttertoast:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.

* 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 15s
Running Gradle task 'assembleDebug'...
Running Gradle task 'assembleDebug'... Done                        15.9s
The built failed likely due to AndroidX incompatibilities in a plugin. The tool
is about to try using Jetfier to solve the incompatibility.

[appdev]

采用 dart 原生写的，没有用到平台相关的代码