## 调整网络连接
Selenium [移动 JSON 协议规范](https://github.com/SeleniumHQ/mobile-spec/blob/master/spec-draft.md) 支持一个获取和设置网络连接的[API](https://github.com/SeleniumHQ/mobile-spec/blob/master/spec-draft.md#104)。这个 API 会设置一个掩码,每一个可能的网络状态对应一个掩码
| 值 (名称) | 数据 | Wifi | 飞行模式 |
| ------------------ | ---- | ---- | ------------- |
| 0 (无网) | 0 | 0 | 0 |
| 1 (飞行模式) | 0 | 0 | 1 |
| 2 (Wifi) | 0 | 1 | 0 |
| 4 (移动数据) | 1 | 0 | 0 |
| 6 (所有网络) | 1 | 1 | 0 |
### iOS
不幸的是,目前 Appium 不支持这个 API。
### Android
Android 上有如下限制:
#### 真机
* 只能在 Android 6 或者以下,改变飞行模式
* 只能在 Android 4.4 或者以下改变数据连接状态。5.0 或者以上必须 root 了之后才能工作。(比如,可以运行 _su_ )
* 所有的 Android 版本都能改变 WI-FI 连接状态
#### 模拟器
* 只能在 Android 6 或者以下,改变飞行模式
* 所有的 Android 版本都能改变数据连接
* 所有的 Android 版本都能改变 WI-FI 连接状态
### Windows
不幸的是,目前 Appium 测试 Windows 应用,不支持这个 API。
```javascript
// javascript
// set airplane mode
driver.setNetworkConnection(1)
// set wifi only
driver.setNetworkConnection(2)
// set data only
driver.setNetworkConnection(4)
// set wifi and data
driver.setNetworkConnection(6)
```
检索网络连接设置返回相同的掩码,其中状态可以解码。
```javascript
// javascript
driver.getNetworkConnection().then(function (connectionType) {
switch (connectionType) {
case 0:
// no network connection
break;
case 1:
// airplane mode
break;
case 2:
// wifi
break;
case 4:
// data
break;
case 6:
// wifi and data
break;
}
});
```
本文由 [testly](https://github.com/testly) 翻译,由 [lihuazhang](https://github.com/lihuazhang) 校验。
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