本文介绍了如何使用“为"在小部件的子项内部循环?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
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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