flutter - 当交互式查看器是 Container 的子级时，交互式查看器缩放问题

Question

我在交互式查看器中缩放图像，交互式查看器是容器的子项，为容器设置一些高度，缩放图像后，视口(viewport)中的特定位置，我无法滚动和缩放图像

 class MyApp extends StatelessWidget {
  static const String _title = 'Flutter Code Sample';

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: _title,
      home: Scaffold(
        appBar: AppBar(title: const Text(_title)),
        body: Zoom(),
      ),
    );
  }
}
class Zoom extends StatefulWidget
{
  @override
  MyStatelessWidget createState()=> MyStatelessWidget();
}
/// This is the stateless widget that the main application instantiates.
class MyStatelessWidget extends State<Zoom> {


  @override
  Widget build(BuildContext context) {
    return Center(
child:Container(height: 300,
      child: InteractiveViewer(

       scaleEnabled: true,maxScale: 4.0,
        child: Center(
         child:Container( child:Image.asset('Assets/Java-001.jpg',fit: BoxFit.cover,alignment: Alignment.center,)),
      ),
    )));
  }
}

我该如何解决这个问题？

Answer 1

尝试将这些参数添加到 InteractiveViewer 小部件:

minScale: 0.1,
maxScale: 4.0,
boundaryMargin: const EdgeInsets.all(double.infinity),
constrained: false,