Enable Disable WiFi on Android 29

Question

public boolean WifiManager.setWifiEnabled (boolean enabled)

This method was deprecated in API level 29. Starting with Build.VERSION_CODES#Q, applications are not allowed to enable/disable Wi-Fi. Compatibility Note: For applications targeting Build.VERSION_CODES.Q or above, this API will always return false and will have no effect. If apps are targeting an older SDK ( Build.VERSION_CODES.P or below), they can continue to use this API.

How can we disable WiFi on Android 29?

Bainmarie

this is the intended behavior and will not be fixed, this sucks, android 10 sucks overall. Scoped storage being the most annoying commonsware.com/blog/2019/03/29/… – Unborn

Answer 1

In Android Q (Android 10, API level 29) you can't enable/disable wifi programmatically anymore. Use Settings Panel to toggle wifi connectivity:

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
    val panelIntent = Intent(Settings.Panel.ACTION_INTERNET_CONNECTIVITY)
    startActivityForResult(panelIntent, 0)
} else {
    // add appropriate permissions to AndroidManifest file (see https://mcmap.net/q/235102/-android-how-to-enable-disable-wifi-or-internet-connection-programmatically/61289575)
    (this.context?.getSystemService(Context.WIFI_SERVICE) as? WifiManager)?.apply { isWifiEnabled = true /*or false*/ }
}

Fabrikoid

Answer 2

This is a much simpler way of detecting the operating system version:

if (Build.VERSION.SDK_INT<Build.VERSION_CODES.Q)
   wifiManager.setWifiEnabled(status);
else
{
   Intent panelIntent = new Intent(Settings.Panel.ACTION_WIFI);
   startActivityForResult(panelIntent,1);
}

Basically, if the OS version is less than Android Q, use the WifiManager class object to enable/disable the use of Wi-Fi; otherwise, use implicit Intents to disable Wi-Fi.

Lovesome

If targetSdkVersion < 29, wifiManager.setWifiEnabled works as intended on ALL android version, including newer ones. If targetSdkVersion >= 29, wifiManager.setWifiEnabled fails and returns false for ALL android version, including older ones. So what's the point of this if-else logic? – Brinn

Answer 3

solved!

private void setWifiEnabled(boolean enabled) {
    try {
        Runtime.getRuntime().exec(new String[] { "su", "-c", "svc wifi", enabled ?
                "enable" :
                "disable" });
    }
    catch (IOException e) {
        e.printStackTrace();
    }
}

happily works on api 29

obviously, this requires root

does NOT require android.permission.CHANGE_WIFI_STATE

Lepto

Another variant to this at https://mcmap.net/q/832213/-turning-on-wifi-using-wifimanager-stops-to-work-on-android-10. – Gazpacho

Answer 4

Android Q has restricted this and developers can't disable wifi programmatically. your app will continue to work and can disable wifi if your targetSdkVersion <= 28

Outsole

Answer 5

Toggling WiFi will not be allowed by apps starting from Android Q according to Google.

Here's the issue on their issuetracker: https://issuetracker.google.com/issues/128554616

Mooneye