使用WifiManager开启wifi停止在Android 10上正常工作 [英] Turning on wifi using WifiManager stops to work on Android 10

问题描述

我有以下代码，这些代码以前在Android 10之前运行良好.但是，它无法在Android 10设备上打开wifi.

I have following code which used to work well pre Android 10. But it is not able to turn wifi on in Android 10 devices.

WifiManager wifiMgr = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
boolean res = wifiMgr.setWifiEnabled(true);
//res value is set to false above because setWifiEnabled returns false on Android 10

以下是我在AndroidManifest.xml

<uses-permission android:name=\"android.permission.ACCESS_WIFI_STATE\"/>
<uses-permission android:name=\"android.permission.CHANGE_WIFI_STATE\"/>
<uses-permission android:name=\"android.permission.CHANGE_NETWORK_STATE\"/>
<uses-permission android:name=\"android.permission.INTERNET\"/>
<uses-permission android:name=\"android.permission.ACCESS_NETWORK_STATE\"/>

我什至在动态地请求这些权限.但这似乎也无济于事.

I am even dynamically requesting for these permissions. But that doesn't seem to help as well.

问题:
Android 10上有什么变化吗?我应该做些其他事情来通过我的应用程序以编程方式打开wifi吗?

Question:
Has anything changed on Android 10? Should I do something more to turn on wifi programatically from my app?

推荐答案

公共布尔setWifiEnabled(已启用布尔)

此方法在API级别29中已弃用. 从Build.VERSION_CODES#Q开始，不允许应用程序启用/禁用Wi-Fi.

This method was deprecated in API level 29. Starting with Build.VERSION_CODES#Q, applications are not allowed to enable/disable Wi-Fi.

兼容性说明:对于以Build.VERSION_CODES.Q或更高版本为目标的应用程序，此API始终返回false，并且无效.

Compatibility Note: For applications targeting Build.VERSION_CODES.Q or above, this API will always return false and will have no effect.

如果应用程序以较早的SDK(Build.VERSION_CODES.P或更低版本)为目标，则它们可以继续使用此API.

If apps are targeting an older SDK ( Build.VERSION_CODES.P or below), they can continue to use this API.

根据文档，Apps将无法再从Android-10 API level 29转到Wi-Fi OFF/ON.[直到Google提供了替代解决方案].

According to documentation, Apps will not be able to turn Wi-Fi OFF/ON anymore from Android-10 API level 29[Until google provides an alternative solution].

有关更多信息，请参见官方文档.

For more information see official documentation.

并且与此有关，在Google issuetracker中已经创建了问题128554616 .

And there is an issue 128554616 has been created in google issuetracker about this.

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