在frameworks\base\core\res\res\values\config.xml中添加红色字体项即可
<!-- List of regexpressions describing the interface (if any) that represent tetherable
Wifi interfaces. If the device doesn't want to support tethering over Wifi this
should be empty. An example would be "softap.*" -->
<string-array translatable="false" name="config_tether_wifi_regexs">
<item>"wlan\\d"</item>
</string-array>