Android 10/API 29:如何将手机连接到已配置的网络? [英] Android 10 / API 29 : how to connect the phone to a configured network?

问题描述

我正在开发一种用户必须遵循以下步骤的应用程序:

I am working on an application in which one the user has to follow these steps :

1. 将手机连接到wifi
2. 将电话从连接的对象连接到专用热点.

当用户连接到连接对象的专用热点时，应用程序会执行一些HTTP请求以对其进行配置.然后，我想自动将应用程序重新连接到步骤1的全局wifi.

When the user is connected to the dedicated hotspot of the connected object, the application does some HTTP requests in order to configure it. Then, I would like to reconnect automatically the application to the global wifi of the step 1.

从API 21到API 28，此功能非常易于实现，因为我知道要将手机重新连接到的SSID.只需几行代码即可完成:

From API 21 to API 28 this feature is very easy to implement because I know the SSID I want to reconnect the phone to. It can be done with few line of code:

private fun changeCurrentWifiNetworkLegacy(ssidToConnect: String) {
    val wifiManager = applicationContext.getSystemService(Context.WIFI_SERVICE) as WifiManager

    var ssidIdentifier: Int? = null

    wifiManager.configuredNetworks?.forEach { config ->
        Log.d("SSID", config.SSID)

        if (config.SSID == "\"${ssidToConnect}\"") {
            ssidIdentifier = config.networkId
        }
    }

    ssidIdentifier?.let { id ->
        wifiManager.enableNetwork(id, true)
    }
}

在API 29上，根据本文，此简单代码不再起作用:

On API 29 this simple code does not work anymore according to this article : https://developer.android.com/about/versions/10/privacy/changes#configure-wifi

根据这篇文章，现在，我应该使用2个类:WifiNetworkSpecifier和/或WifiNetworkSuggestion.

According to the article, now, I should use 2 classes : WifiNetworkSpecifier and/or WifiNetworkSuggestion.

不幸的是，我找不到使用这些类的有效示例，以将用户连接到先前配置的SSID.

Unfortunately, I cannot find a working example using these classes in order to connect the user to a previous configured SSID.

有人已经实现了吗?

预先感谢您的帮助.

推荐答案

只要万一有可怜的人遇到这种情况，API很有可能在您的设备上就被破坏了.在我的OnePlus 5，Android 10，Build 200513上，会发生以下情况:

Just in case any poor soul encounters this, it's completely possible the API is just broken on your device. On my OnePlus 5, Android 10, Build 200513, this happens:

1. 呼叫requestNetwork.我是否使用Listener或PendingIntent版本都没关系
2. 操作系统找到网络，进行连接，onAvailable，并称为朋友
3. 操作系统立即断开连接.我可以在logcat中看到应用已释放请求，正在取消NetworkRequest"
4. 但是，这不是真的-并未取消该请求，Android重新关联了该请求，并重新开始了连接到网络的过程.转到2.并重复一遍.

为此创建了一个Android错误: https://issuetracker.google.com/issues/158344328

Created an Android bug for this: https://issuetracker.google.com/issues/158344328

此外，如果您不以正确的顺序终止应用程序和对话框，并且仅重新启动，则可以使操作系统进入不再显示要与之配合使用的设备"对话框的状态.

Additionally, you can get the OS into state when it will no longer show the "Device to use with " dialog if you don't terminate your app and the dialogs in the correct order, and only reboot helps.

只需为自己省事，以Android 9为目标，然后使用WifiManager API(如果以10为目标，则很有用).与新的requestNetwork API相比，它甚至具有更好的用户体验.

Just save yourself the trouble, target Android 9 and use the WifiManager APIs (that are helpfully broken if you target 10). It even has better user experience than the new requestNetwork APIs.

这篇关于Android 10/API 29:如何将手机连接到已配置的网络?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！