2020-07-15 19:51:56 +08:00
|
|
|
|
---
|
|
|
|
|
order: 10
|
|
|
|
|
title:
|
|
|
|
|
zh-CN: 通过 Hooks 获取上下文(4.5.0+)
|
|
|
|
|
en-US: Get context with hooks (4.5.0+)
|
|
|
|
|
---
|
|
|
|
|
|
|
|
|
|
## zh-CN
|
|
|
|
|
|
|
|
|
|
通过 `message.useMessage` 创建支持读取 context 的 `contextHolder`。
|
|
|
|
|
|
|
|
|
|
## en-US
|
|
|
|
|
|
|
|
|
|
Use `message.useMessage` to get `contextHolder` with context accessible issue.
|
|
|
|
|
|
|
|
|
|
```jsx
|
|
|
|
|
import { message, Button } from 'antd';
|
|
|
|
|
|
|
|
|
|
const Context = React.createContext({ name: 'Default' });
|
|
|
|
|
|
|
|
|
|
function Demo() {
|
2021-07-31 23:57:26 +08:00
|
|
|
|
const [messageApi, contextHolder] = message.useMessage();
|
2020-07-15 19:51:56 +08:00
|
|
|
|
const info = () => {
|
2021-07-31 23:57:26 +08:00
|
|
|
|
messageApi.open({
|
2020-07-15 19:51:56 +08:00
|
|
|
|
type: 'info',
|
|
|
|
|
content: <Context.Consumer>{({ name }) => `Hello, ${name}!`}</Context.Consumer>,
|
|
|
|
|
duration: 1,
|
|
|
|
|
});
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
return (
|
|
|
|
|
<Context.Provider value={{ name: 'Ant Design' }}>
|
|
|
|
|
{contextHolder}
|
|
|
|
|
<Button type="primary" onClick={info}>
|
|
|
|
|
Display normal message
|
|
|
|
|
</Button>
|
|
|
|
|
</Context.Provider>
|
|
|
|
|
);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
ReactDOM.render(<Demo />, mountNode);
|
|
|
|
|
```
|