How can access preferences set in account-authenti

Question

I need to get value of CheckBoxPreference and SwitchPreference.

In account_preferences.xml i have:

<PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android" >

    <PreferenceCategory android:title="User Preferences" />
    <CheckBoxPreference android:key="test1" android:title="Test 1" />
    <SwitchPreference android:key="test2" android:title="Test 2" />

</PreferenceScreen>