Flutter：为什么我不能在 AlertDialog 中使用图像？

Question

I just want to put an Image and an Text in this AlertDialog , but the Imagename images/jonglieren.jpg is red underlined. The shown "Error: The getter 'images' isn't defined for the class 'MyHomePage'" doesn't help too. Here's the function :

void inform() {
      showDialog<AlertDialog>(
          context: context,
          builder: (BuildContext context) {
            return AlertDialog(
              actions: <Widget>[
                Column(
                  children: <Widget>[
                    Text('Jonglieren'), Image.asset(images/jonglieren.jpg)
                  ],
                )
              ],
            );
          });
    }

Answer 1

Your image path should be a string(it should be in a quotation)

from images/jonglieren.jpg to 'images/jonglieren.jpg'

void inform() {
      showDialog<AlertDialog>(
          context: context,
          builder: (BuildContext context) {
            return AlertDialog(
              actions: <Widget>[
                Column(
                  children: <Widget>[
                    Text('Jonglieren'), Image.asset('images/jonglieren.jpg')
                  ],
                )
              ],
            );
          });
    }

Answer 2

The Image.asset constructor takes a String name as its parameter. So to solve this issue just give your asset path as a String.

void inform() {
      showDialog<AlertDialog>(
          context: context,
          builder: (BuildContext context) {
            return AlertDialog(
              actions: <Widget>[
                Column(
                  children: <Widget>[
                    Text('Jonglieren'), Image.asset('images/jonglieren.jpg')
                  ],
                )
              ],
            );
          });
    }