Question

Is it possible to have a switch widget for ICS versions, but a checkbox for pre ICS? If so, how?

I’m not worried about other components, only switch.

MY SOLUTION

Seeing as switch and checkbox both inherit from CompoundButton, I just did this

((CompoundButton)findViewById(R.id.swTax)).setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {

        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
            calculateValues();
        }
    });

Answer 1

Create a separate layout XML file for ICS versions by placing it in a separate layout folder, e.g. layout-v14. To prevent a lot of duplicate XML, use one main layout file and include the widget. The resulting file structure would look something like this:

• layout
  • mylayout.xml
  • widget.xml
• layout-v14
  • widget.xml

In mylayout.xml you would have something like:

<include layout="@layout/widget" />

In the Activity for this layout you will have to check the version as well before setting up any interaction with either the CheckBox or Switch widget:

int version = android.os.Build.VERSION.SDK_INT;
if (version >= 14) {
    // get your Switch view and set up listeners etc
}
else {
    // get your CheckBox view and set up listeners etc
}