状态栏颜色配置

void main() {
  runApp(MyApp());

  if (Platform.isAndroid) {
    SystemUiOverlayStyle systemUiOverlayStyle = SystemUiOverlayStyle(
        statusBarColor: Colors.transparent,  //设置为透明
    );
    SystemChrome.setSystemUIOverlayStyle(systemUiOverlayStyle);
  }
}