/
WiFiHelper.java
executable file
·42 lines (32 loc) · 1.56 KB
/
WiFiHelper.java
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package edu.northwestern.cbits.anthracite;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.net.wifi.WifiManager;
public class WiFiHelper {
private static boolean _wifiAvailable = false;
private static long _lastWifiCheck = 0;
public static boolean wifiAvailable(Context context) {
long now = System.currentTimeMillis();
if (now - WiFiHelper._lastWifiCheck > 10000) {
WiFiHelper._lastWifiCheck = now;
WifiManager wifi = (WifiManager) context.getApplicationContext().getSystemService(Context.WIFI_SERVICE);
if (wifi.isWifiEnabled()) {
WiFiHelper._wifiAvailable = true;
ConnectivityManager connection = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo netInfo = connection.getActiveNetworkInfo();
if (netInfo != null) {
if (netInfo.getType() != ConnectivityManager.TYPE_WIFI)
WiFiHelper._wifiAvailable = false;
else if (netInfo.getState() != NetworkInfo.State.CONNECTED
&& netInfo.getState() != NetworkInfo.State.CONNECTING)
WiFiHelper._wifiAvailable = false;
} else
WiFiHelper._wifiAvailable = false;
} else
WiFiHelper._wifiAvailable = false;
}
return WiFiHelper._wifiAvailable;
}
}