([Introduction to Open Class] In the third quarter of the Android series courses, the principle, use and optimization of istView - quickly improve your ability to master Android development technology by starting with the most important UI component, ListView, and fully understanding the principle, use and optimization skills of ListView. The series of courses include: Android technology system and basic development technology - easy introduction/open/10.html (finished)? How to use Android multithreading and advanced skills -- in-depth understanding of the principle, use and optimization of/open/11.html (finished), the most important UI component, ListView)