AndroidManifest.xml res ...\drawable-hdpi ...\.............\icon.png ...\drawable-ldpi ...\.............\icon.png ...\drawable-mdpi ...\.............\icon.png ...\layout ...\......\main.xml ...\......\time_preference.xml ...\values ...\......\strings.xml ...\xml ...\...\settings.xml src ...\cn ...\..\demo ...\..\....\pa ...\..\....\..\MainActivity.java ...\..\....\..\SettingActivity.java ...\..\....\..\TimePreference.java