Android版本与api对应关系

Version	Codename	API	Distribution
2.3.3 -2.3.7	Gingerbread	10	0.3%
4.0.3 -4.0.4	Ice Cream Sandwich	15	0.3%
4.1.x	Jelly Bean	16	1.2%
4.2.x		17	1.5%
4.3		18	0.5%
4.4	KitKat	19	6.9%
5.0	Lollipop	21	3.0%
5.1		22	11.5%
6.0	Marshmallow	23	16.9%
7.0	Nougat	24	11.4%
7.1		25	7.8%
8.0	Oreo	26	12.9%
8.1		27	15.4%
9	Pie	28	10.4%

https://developer.android.google.cn/about/dashboards/

Android各版本迭代改动与适配集合！