ant-design/components/avatar/demo/dynamic.md
2022-05-23 14:37:16 +08:00

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---
order: 2
title:
zh-CN: 自动调整字符大小
en-US: Autoset Font Size
---
## zh-CN
对于字符型的头像,当字符串较长时,字体大小可以根据头像宽度自动调整。也可使用 `gap` 来设置字符距离左右两侧边界单位像素。
## en-US
For letter type Avatar, when the letters are too long to display, the font size can be automatically adjusted according to the width of the Avatar. You can also use `gap` to set the unit distance between left and right sides.
```tsx
import { Avatar, Button } from 'antd';
import React, { useState } from 'react';
const UserList = ['U', 'Lucy', 'Tom', 'Edward'];
const ColorList = ['#f56a00', '#7265e6', '#ffbf00', '#00a2ae'];
const GapList = [4, 3, 2, 1];
const App: React.FC = () => {
const [user, setUser] = useState(UserList[0]);
const [color, setColor] = useState(ColorList[0]);
const [gap, setGap] = useState(GapList[0]);
const changeUser = () => {
const index = UserList.indexOf(user);
setUser(index < UserList.length - 1 ? UserList[index + 1] : UserList[0]);
setColor(index < ColorList.length - 1 ? ColorList[index + 1] : ColorList[0]);
};
const changeGap = () => {
const index = GapList.indexOf(gap);
setGap(index < GapList.length - 1 ? GapList[index + 1] : GapList[0]);
};
return (
<>
<Avatar style={{ backgroundColor: color, verticalAlign: 'middle' }} size="large" gap={gap}>
{user}
</Avatar>
<Button
size="small"
style={{ margin: '0 16px', verticalAlign: 'middle' }}
onClick={changeUser}
>
ChangeUser
</Button>
<Button size="small" style={{ verticalAlign: 'middle' }} onClick={changeGap}>
changeGap
</Button>
</>
);
};
export default App;
```