检查 wifi 是否在 android 的类中

Question

I have this class:

 import android.content.Context; import android.net.wifi.WifiManager; import static androidx.core.content.ContextCompat.getSystemService; public class Wifi { public static boolean isOn() { WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE); return wifiManager.isWifiEnabled(); } }

I want to return the state of wifi using this class and method. But I get an error for getSystemService(Context.WIFI_SERVICE) part:

Error: The WIFI_SERVICE must be looked up on the Application context or memory will leak on devices

Answer 1

使用 .getApplicationContext().getSystemService 代替。