Question

I’m targeting Android with Titanium. How can I tell if a device has a touch screen or not?

Answer 1

This is the solution I came up with. It’s really stupid, but it works. Wherever you create your application window, add this code:

function touchStart(){
    Titanium.App.Properties.setBool("touch", true);

    self.removeEventListener("touchstart", touchStart);
}

self.addEventListener("touchstart", touchStart);

Replace self with the name of your window. Now, the first time a touch event is detected, an application property will be set.

Later on, check that touch is present with this:

var touchSupported = Titanium.App.Properties.getBool("touch", false);

If you are testing this on an emulator, the property might persist even when you change “devices”. So add this line before anything else:

Titanium.App.Properties.setBool("touch", false);