An easy-to-use third-party tool for ios, easy to organize and query later

1. On the text box.. the input method pops up the box..
https://github.com/youngsoft/YSTextInputKeyboardCategory (in use)
https://github.com/hackiftekhar/IQKeyboardManager (what others said is useless)
in the virtual machine If you use it in Chinese, remember to cmd+k to display the input settings in the virtual machine, otherwise the virtual machine will not display the input method by default

2. The database fmdb
https://github.com/ccgus/fmdb
and libsqlite3.dylib depends on the package

3. Image cache SDWebImage
https://github.com/rs/SDWebImage

4. Up-down and down-refresh
MJRefresh
This is the work of Mr. Li Mingjie of Chuanzhi Podcast. His OC is based on watching his video for half a weekend and basically won it. MJRefresh is mainly used for refresh operations, providing common refresh operations, as well as refresh animations, which are very useful. It is recommended to encapsulate the method in BaseViewController, so that when modifying the refresh operation, only one copy needs to be changed. (The old version of MJRefresh used before, only supports ordinary refresh and does not support animation. After the update, the version changed a lot, and the old method is no longer recommended, so it is better to use it in the encapsulation base class, which is convenient for future modification)
https: //github.com/CoderMJLee/MJRefresh

5. Calendar
FDCalendar: https://github.com/fergusding/FDCalendar
FSCalendar: http://123.th7.cn/code/FSCalendar_2557.html

6. Network loading
AFNetworking: https://github.com/AFNetworking/AFNetworking