如何将清除按钮添加到TextField小部件
问题描述:
是否有正确的方法向 TextField
添加清除按钮?
Is there a proper way to add a clear button to the TextField
?
就像材料设计指南中的这张图片一样:
Just like this picture from Material design guidelines:
我发现是在 InputDecoration $ c中设置一个清晰的
IconButton
$ c>的 suffixIcon
。
What I found is to set a clear IconButton
in the InputDecoration
's suffixIcon
. Is this the right way?
答
输出:
创建变量
var _controller = TextEditingController();
和您的 TextField
:
TextField(
controller: _controller,
decoration: InputDecoration(
hintText: "Enter a message",
suffixIcon: IconButton(
onPressed: () => _controller.clear(),
icon: Icon(Icons.clear),
),
),
)