如何使用“为"在小部件的子项内部循环? [英] How to use a "for" loop inside children of a widget?

问题描述

我对此感到非常困惑，应该将FOR LOOP放在哪里，这样我就不会在抖动中出错了?正如您在图片上看到的那样，它带有红色下划线，并且上面写着.

I am really confused with this, where should the FOR LOOP be placed, so that I don't get an error in flutter? As you can see on the picture, it has red underlines and it says.

推荐答案

两种选择:

final children = <Widget>[];
for (var i = 0; i < 10; i++) {
  children.add(new ListTile());
}
return new ListView(
  children: children,
);

或

return new ListView(
  children: new List.generate(10, (index) => new ListTile()),
);

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