(This is a thin book to help beginners better understand and learn Android in the future. Directory: Day 1: Android architecture and environment building Day 2: Android program design foundation Day 3: UI event management and layout management Day 5: Basic UI controls Day 6: AndroidService Day 7: SharedPreferences and files Day 8: SQLite database technology Day 9: ContentProvider and BroadcastReceiver Day 10: Android network and communication Day 11: Android graphics technology Day 12: Android animation technology Day 13: Android multimedia development Day 14: Android project case: mp3 player)