Device fingerprint

canevaluatefingerprint.js

if (Device.canEvaluateFingerPrint) {
	// here scan fingerprint method can be called
} else {
	// biometry is not available for that device
}

scanfingerprint.js

var myButton = new SMF.UI.TextButton({
        top : "25%",
        left : "15%",
        height : "10%",
        width : "70%",
        text : "Scan fingerPrint"
    });
myButton.onPressed = function () {
    if (Device.canEvaluateFingerPrint) {
        Device.scanFingerPrint({
            title : "myTitle", // Android only, ignored in iOS
            subtitle : "mySubtitle",
            icon : "myicon.png", // Android only, ignored in iOS
            fallbackText : "Enter Password" // iOS only, ignored in Android
        }, function onSuccess(e) {
            // Scan is success
        }, function onError(e) {
            alert("code: " + e.code +
                "\n description: " + e.description);
            if (e.code == "-3") { // -3 is errorCode of fallback
                // a password field can be showed to user
                alert("Fallback called");
            }
        });
    }
}