Android preferences onclick event

You need to set android:key for the item:

<Preference
    android:key="myKey"
    android:title="About" />

Then you can do the following in your code:

Preference myPref = (Preference) findPreference("myKey");
myPref.setOnPreferenceClickListener(new OnPreferenceClickListener() {
    public boolean onPreferenceClick(Preference preference) {
        // open browser or intent here
        return true;
    }
});