Flutter

背景 flutter版本要实现一个渐变的圆弧指示器,如图 颜色需要有个渐变,而且根据百分比的不同,中间的菱形指向还不一样

Tried to send a platform message to Flutter, but FlutterJNI was detached from native C++.

Flutter图表库graphic,自定义TooltipGuide.使每条线对应不同的颜色提示,和自定义字段排列