Android Learn 참고용 자료 : Android 개발자 기초(JAVA) 라이브러리 정리 : Library Unit 1 : Get Started Lesson 1 : Build your first app 1.1 Android Studio and Hello World 1.2 Part A: Your first interacive UI 1.3 Text and scrolling views Lesson 2 : Activities and intents 2.1 Activities and intents 🌟 2.3 Implicit intents Lesson 3 : Testing, debugging, and using support libraries 3.1 The debugger Unit 2 : User experience Lesson 4 : User interaction 4.1 Clickable images 4.2 Input controls 4.3 Menus and pickers 4.4 User navigation 4.5 RecyclerView 🌟 Lesson 5 : Delightful use experience 5.1 Drawables, styles and themes 5.2 Cards and colors 5.3 Adaptive layouts Unit 3 : Working in the background Lesson 7 : Background tasks 7.1 AsyncTask 🌟 7.2 AsyncTask and AsyncTaskLoader 🌟 7.3 Broadcast receivers 🌟 Lesson 8 : Alarms and scheduler 8.1 Notifications 🌟 8.2 The alarm manager 🌟 8.3 JobScheduler 🌟 Unit 4 : Saving user data Lesson 9 : Preferences and settings 9.1 Shared preferences 9.2 App settings