app/src/main/res/xml/pref_general.xml

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

    <SwitchPreference
        android:key="battery_level_toast_switch"
        android:title="@string/pref_title_battle_level_toast"
        android:summary="@string/pref_description_battle_level_toast"
        android:defaultValue="true" />

    <!-- NOTE: EditTextPreference accepts EditText attributes. -->
    <!-- NOTE: EditTextPreference's summary should be set to its value by the activity code. -->
    <EditTextPreference
        android:key="example_text"
        android:title="@string/pref_title_display_name"
        android:defaultValue="@string/pref_default_display_name"
        android:selectAllOnFocus="true"
        android:inputType="textCapWords"
        android:capitalize="words"
        android:singleLine="true"
        android:maxLines="1" />

    <!-- NOTE: Hide buttons to simplify the UI. Users can touch outside the dialog to
         dismiss it. -->

</PreferenceScreen>