Can Wifi Be Turned Off Programmatically

How can wifi be turned off/on programmatically and do is rooted or system app required for this.

Solution 1:

Permissions are required.

I just wrote this app that toggles Wifi.

Manifest

<?xml version="1.0" encoding="utf-8"?><manifestxmlns:android="http://schemas.android.com/apk/res/android"package="com.stackoverflow.q5766518"android:versionCode="1"android:versionName="1.0"><uses-sdkandroid:minSdkVersion="3" /><uses-permissionandroid:name="android.permission.ACCESS_WIFI_STATE" /><uses-permissionandroid:name="android.permission.CHANGE_WIFI_STATE" /><uses-permissionandroid:name="android.permission.WAKE_LOCK" /><applicationandroid:icon="@drawable/icon"android:label="@string/app_name"><activityandroid:name=".Main"android:label="@string/app_name"><intent-filter><actionandroid:name="android.intent.action.MAIN" /><categoryandroid:name="android.intent.category.LAUNCHER" /></intent-filter></activity></application></manifest>

layout

<?xml version="1.0" encoding="utf-8"?><LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:orientation="vertical"android:layout_width="fill_parent"android:layout_height="fill_parent"><Buttonandroid:id="@+id/my_button"android:layout_width="wrap_content"android:layout_height="wrap_content"android:text="Toggle Wifi" /></LinearLayout>

Main Activity

@OverridepublicvoidonCreate(Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    finalButtonmyButton= (Button) findViewById(R.id.my_button);
    myButton.setOnClickListener(newView.OnClickListener()
    {
      @OverridepublicvoidonClick(View v)
      {
        finalWifiManagerwifi= (WifiManager) getSystemService(Context.WIFI_SERVICE);
        wifi.setWifiEnabled(!wifi.isWifiEnabled());
      }
    });
  }

Solution 2:

WIFI_ON is a secure setting; only apps signed by the system firmware will be able to hold the proper permission and adjust it using the SDK.

---

UPDATE

setWifiEnabled() probably supports this, as was pointed out in the comments. I don't see evidence of a permission being required, but if there is one, you'll get a stack trace that should point out what's needed. My apologies for forgetting about this path.

Solution 3:

Yes, its possible. wifimangr.setWifiEnabled(false);

Create an object of Wifimanager..and call the method setWifiEnabled to "false". wifimangr.setWifiEnabled(false);

you need CHANGE_WIFI_STATE permission todo this.