Android Tips!
2017-04-11 Add official link of API level in README
2017-04-11 Add new API level 7.1 in README
2016-09-29 Volley in volley-demo
2016-09-30 Intent in intent-demo
2016-10-01 Activity in activity-demo
2016-10-05 Service in service-demo
2016-10-06 Broadcast in broadcast-demo
2016-10-06 Notification in notification-demo
2016-10-06 ListView in listview-demo
2016-10-07 Handler & AsyncTask in mutlithread-demo
2016-10-07 SQLiteDatabase in sqlite-demo
2016-10-07 SharedPreferences in sharedpreferences-demo
2016-10-08 HttpURLConnection in network-demo
2016-10-08 Fragment in fragment-demo
2016-10-08 ContentProvider in contentprovider-demo
2016-10-11 View & ViewGroup in view-demo
| 层次 | 名称 | 功能 |
|---|---|---|
| 4 | Applications | 应用程序 |
| 3 | Application Framework |
各种API |
| 2 | Libraries & Android Runtime |
各种库 & 虚拟机 |
| 1 | Linux Kernel | 各种硬件驱动 |
| 密度 | 密度值 | 分辨率 | dp:px |
|---|---|---|---|
| ldpi | 120 | 240×320 | 1:0.75 |
| mdpi | 160 | 320×480 | 1:1 |
| hdpi | 240 | 480×800 | 1:1.5 |
| xhdpi | 320 | 720×1280 | 1:2 |
| xxhdpi | 480 | 1080×1920 | 1:3 |
| 名称 | 版本号 | API Level |
|---|---|---|
| Nougat | 7.1 | 25 |
| Nougat | 7.0 | 24 |
| Marshmallow | 6.0 | 23 |
| Lollipop | 5.1 | 22 |
| Lollipop | 5.0 | 21 |
| KitKat | 4.4.x | 19 |
| Jelly Bean | 4.3.x | 18 |
| Jelly Bean | 4.2.x | 17 |
| Jelly Bean | 4.1.x | 16 |
| Ice Cream Sandwich | 4.0.x | 14、15; NDK 8 |
| Gingerbread | 2.3.x | 9、10 |
| Froyo | 2.2.x | 8 |