Checking Wi-Fi enabled or not on Android

Question

What would the code be for checking whether the Wi-Fi is enabled or not?

Possible duplicate of [how to see if wifi is connected in android](http://stackoverflow.com/questions/3841317/how-to-see-if-wifi-is-connected-in-android) — Ciro Santilli Путлер Капут 六四事, Nov 28 '15 at 11:24

score 119 · Accepted Answer · edited Dec 01 '19 at 00:51

119

WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
if (wifiManager.isWifiEnabled()) {
  // wifi is enabled
}

For details check here

edited Dec 01 '19 at 00:51

Jared Burrows

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answered Jul 06 '11 at 09:01

Rasel

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2

if (wifi.isWifiEnabled()) {//wifi is enabled } – inforg Jul 06 '11 at 09:07
2

this needs . Sorry if this is obvious but I got an unexpected runtime error. – user420667 May 27 '17 at 19:15
1

Please edit answer to include the needed permissions. My IDE is also suggesting that I use `getApplciationContext()` rather than `getSystemService()` – Zapnologica Sep 21 '17 at 07:01

McLan · Answer 2 · 2019-12-02T12:13:49.220

25

The above answers work fine. But don't forget to add the right permissions in the Manifest:

<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/>

Hope it helps ..

edited Dec 02 '19 at 12:13

answered Sep 19 '14 at 11:39

McLan

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I don't think we need CHANGE_WIFI_STATE – LoveForDroid Oct 17 '16 at 21:21
@LoveForDroid : why ? – McLan Oct 17 '18 at 10:14

score 17 · Answer 3 · edited Dec 01 '19 at 00:53

17

The top answer is correct, but not up to date because this code may leak memory on certain devices.

Therefore the better answer would be:

WifiManager wifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
if (wifiManager.isWifiEnabled()) {
  // wifi is enabled
}

Permissions in app=>mainfests=>AndroidManifest.xml:

<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />

Reference: https://www.mysysadmintips.com/other/programming/759-the-wifi-service-must-be-looked-up-on-the-application-context

edited Dec 01 '19 at 00:53

Jared Burrows

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answered Jun 21 '17 at 18:23

KoKlA

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You are right, but on your second uses-permission line, change the "(" to "/". – Curious Mind Jul 19 '18 at 16:05
1

@CuriousMind Thank you, I changed it. – KoKlA Aug 05 '18 at 12:44

score 8 · Answer 4 · edited Dec 01 '19 at 00:54

8

public static boolean wifiState() {
    WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
    return wifiManager.isWifiEnabled();
}

edited Dec 01 '19 at 00:54

Jared Burrows

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answered Apr 09 '14 at 01:19

XXX

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Checking Wi-Fi enabled or not on Android

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