How to add UI ImageView to UIScrollView in the code so that it is displayed in the center.
The scroll view fills a large area, and the average size of the UIImage view is about 40%.
How
Tag: Sub
Child pixel rendering of font on iPad
Sub-pixel font rendering like ClearType can significantly increase font display resolution and improve screen readability. How to write sub-pixel rendering of a font (usually), and how to use it on
PostgreSQL – Postgres hierarchy – counting of sub-level, sorted by subkey or grandson
I want to know how to write a postgres subquery so that the following example will output what I need.
id parent_id postdate
1 -1 2015-03-10
2 1 2015-03-11 (child level 1)
3 1 2015