How to switch on wifi in uiautomator test case in android device?

Question

I want to switch on wifi as a part of test case using uiautomator tool in android. I tried using following code in uiautomator test case:

WifiManager wi = (WifiManager) this.getSystemService(Context.WIFI_SERVICE);
      if(wi.isWifiEnabled()){
        wi.setWifiEnabled(false);
      }else{
        wi.setWifiEnabled(true);
    }

but it gave this error:

"getSystemservice" method is undefined for Mainclass

Answer 1

You can actually use UIAutomator to set the WiFi setting on and off. I wrote the code this evening :)

Here's the code. You can add it to the Android example which is here http://developer.android.com/tools/testing/testing_ui.html

Add the following enum at the top of the class

private enum OnOff {
    Off,
    On
};

Add the new code after:

    // Validate that the package name is the expected one
    UiObject settingsValidation = new UiObject(new UiSelector()
    .packageName("com.android.settings"));
    assertTrue("Unable to detect Settings", settingsValidation.exists());

Here is the new code:

    UiSelector settingsItems = new UiSelector().className(android.widget.TextView.class.getName());
    UiObject wiFi = appViews.getChildByText(settingsItems, "Wi-Fi");

    // We can click on Wi-Fi, e.g. wiFi.clickAndWaitForNewWindow();
    // So we know we have found the Wi-Fi setting

    UiSelector switchElement = new UiSelector().className(android.widget.Switch.class.getName());
    setSwitchTo(OnOff.Off); // Or set it to On as you wish :)
}   

private void setSwitchTo(OnOff value) throws UiObjectNotFoundException {

    String text;
    UiObject switchObject = getSwitchObject();
    for (int attempts = 0; attempts < 5; attempts++) {
        text = switchObject.getText();
        boolean switchIsOn = switchObject.isChecked();
        final OnOff result;
        if (switchIsOn) {
            result = OnOff.On;
        } else {
            result = OnOff.Off;
        }

        System.out.println("Value of switch is " + switchObject.isSelected() + ", " + text + ", " + switchIsOn);
        if (result == value) {
            System.out.println("Switch set to correct value " + result);
            break;
        } else {
            switchObject.click();
        }
    }
}

private UiObject getSwitchObject() {
    UiObject switchObject = new UiObject(new UiSelector().className(android.widget.Switch.class.getName()));
    assertTrue("Unable to find the switch object", switchObject.exists());
    String text;
    return switchObject;
}

The loop was to compensate for some behaviour I observed, where the click didn't seem to change the switch position.

Answer 2

To enable WiFi:
device.executeShellCommand("svc wifi enable");

To disable WiFi:
device.executeShellCommand("svc wifi disable");

These are the commands to use on your UiDevice.

Answer 3

Used on production on Android 4.2 and 4.4

To open the Android Wifi settings in your code:

final Intent intent = new Intent(WifiManager.ACTION_PICK_WIFI_NETWORK);
mContext.startActivity(intent);

To click the on/off switch with UiAutomator (after you're sure you're on the good activity):

public void enableWifiOnAndroidWifiSettings(boolean enabled) throws UiObjectNotFoundException {
    final UiSelector wifiSwitchSelector = new UiSelector().className(android.widget.Switch.class.getName());
    UiObject wifiSwitch = UiDevice.getInstance(sInstrumentation).findObject(wifiSwitchSelector);
    if (wifiSwitch.waitForExists(5000) && wifiSwitch.isEnabled()) {
        if (wifiSwitch.isChecked() != enabled) {
            wifiSwitch.click();
        }
    }
}

Known limitation: It's searching the first Switch available. If you've custom ROM or if the Android Settings app evolves in the future, it will maybe not be enough.

Answer 4

In my suite tests with UIAutomator I use:

Runtime.getRuntime().exec("\"svc wifi disable\"")

Runtime.getRuntime().exec("\"svc wifi enable\"")

Runtime.getRuntime().exec("\"svc data disable\"")

Runtime.getRuntime().exec("\"svc data enable\"")