How to enable/disable WiFi from an application?

问题

I want to enable/disable wifi from my Android application. How can I do that?

回答1:

WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE);
wifi.setWifiEnabled(false); // true or false to activate/deactivate wifi

You also need to request the permission in your AndroidManifest.xml :

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

回答2:

To enable/disable WiFi in your application you need to use WiFiManager class. Create an Object of WiFiManager class to get the services of WiFi.

WifiManager wifi;
wifi=(WifiManager)getSystemService(Context.WIFI_SERVICE);

wifi.setWifiEnabled(false);//Turn off Wifi

wifi.setWifiEnabled(true);//Turn on Wifi

And you have to put the following permissions in AndroidManifest.xml

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

<uses-permission android:name="android.permission.INTERNET" />

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

<uses-permission android:name="android.permission.WAKE_LOCK" />

To get the whole sample code of enable/disable Wifi in android with UI visit this website

回答3:

try this code

 Intent gpsOptionsIntent = new Intent(  android.provider.Settings.ACTION_WIFI_SETTINGS);  
            startActivityForResult(gpsOptionsIntent,0);

回答4:

try this

public void disableWifi(Context context, Boolean bool) {
    WifiManager wifi = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);

    if(bool)
        wifi.setWifiEnabled(false);
    else
        wifi.setWifiEnabled(true);
}

回答5:

public class MainActivity extends AppCompatActivity {

    Switch btn;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        btn = (Switch) findViewById(R.id.switch1);
        btn.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
                if (isChecked) {
                    toggleWiFi(true);
                    Toast.makeText(getApplicationContext(), "Wi-Fi Enabled!", Toast.LENGTH_LONG).show();
                } else {
                    toggleWiFi(false);
                    Toast.makeText(getApplicationContext(), "Wi-Fi Disabled!", Toast.LENGTH_LONG).show();
                }
            }
        });
    }

    public void toggleWiFi(boolean status){
        WifiManager wifiManager = (WifiManager)this.getSystemService(WIFI_SERVICE);
        if (status && !wifiManager.isWifiEnabled()) {
            wifiManager.setWifiEnabled(true);
        } else if (!status && wifiManager.isWifiEnabled()) {
            wifiManager.setWifiEnabled(false);
        }
    }
}

Add User Permission in Manifest Files

来源：https://stackoverflow.com/questions/5674333/how-to-enable-disable-wifi-from-an-application

标签

android

wifi