> For the complete documentation index, see [llms.txt](https://developers-apps-in-toss.toss.im/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers-apps-in-toss.toss.im/documentation/api-and-sdk-zh/common/screen/open-url.md).

# 打开外部 URL

`openURL` 这个函数是一个实用工具，可以让你将指定的 URL 在设备的默认浏览器或已连接的应用中打开。此函数内部使用 React Native 的 [`Linking.openURL`](https://reactnative.dev/docs/0.72/linking#openurl)。

**签名**

```typescript
function openURL(url: string): Promise<any>;
```

**参数**

* **url** · 必需 · `string`

  要打开的外部网页地址或深度链接路径。

**返回值**

* `Promise<any>`

  返回一个在 URL 成功打开时 resolve 的 Promise。

**示例**

**打开外部网站**

{% tabs %}
{% tab title="tsx\[React]" %}

```tsx[react]
import { openURL } from '@apps-in-toss/web-framework';

function Page() {
  const handlePress = () => {
    openURL('https://google.com');
  };

  return (
    <button onClick={handlePress}>
      打开谷歌网站
    </button>
  );
}
```

{% endtab %}

{% tab title="React Native" %}

```tsx
import { openURL } from '@granite-js/react-native';
import { Button } from 'react-native';

function Page() {
  const handlePress = () => {
    openURL('https://google.com');
  };

  return <Button title="打开谷歌网站" onPress={handlePress} />;
}
```

{% endtab %}
{% endtabs %}

**打开深度链接**

{% tabs %}
{% tab title="tsx\[React]" %}

```tsx[react]
import { openURL } from '@apps-in-toss/web-framework';

openURL('intoss://{appName}');
```

{% endtab %}

{% tab title="React Native" %}

```tsx
import { openURL } from '@granite-js/react-native';

openURL('intoss://{appName}');
```

{% endtab %}
{% endtabs %}

### 参考事项

* 当无法打开外部 URL 时（例如无效的 scheme、网络被阻止等），Promise 可能会被 reject。
* 在 WebView 环境中会新开一个浏览器标签页，而在原生应用中则会切换到外部应用或浏览器。


---

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