【起航计划 029】2015 起航计划 Android APIDemo的魔鬼步伐 28 App->Preferences->Default Values 偏好默认值

    <CheckBoxPreference
            android:key="default_checkbox"
            android:defaultValue="true"
            android:title="@string/title_checkbox_preference"
            android:summary="@string/summary_checkbox_preference" />

    <EditTextPreference
            android:key="default_edittext"
            android:defaultValue="@string/default_value_edittext_preference"
            android:title="@string/title_edittext_preference"
            android:summary="@string/summary_edittext_preference"
            android:dialogTitle="@string/dialog_title_edittext_preference" />
            
    <ListPreference
            android:key="default_list"
            android:defaultValue="@string/default_value_list_preference"
            android:title="@string/title_list_preference"
            android:summary="@string/summary_list_preference"
            android:entries="@array/entries_list_preference"
            android:entryValues="@array/entryvalues_list_preference"
            android:dialogTitle="@string/dialog_title_list_preference" />