Article Directory
Chart
| Android version | API level | VERSION_CODE | Major improvements or changes | Development considerations |
|---|---|---|---|---|
| Android 11.0 | 30 | R | Enforce partition storage mechanism, single authorization, automatic reset permissions, background location information access permissions, package visibility, foreground services | " Android 11 Privacy Settings Update " |
| Android 10.0 | 29 | Q | Introducing partition storage | You may encounter problems such as the inability to save the picture locally, or cause Permission denied. For specific solutions, please refer to " About Android open failed: EACCES (Permission denied) " |
| Android 9.0 | 28 | P | Network connection change | Since 9.0, http requests are no longer supported by default. If you need support, you need to modify and edit according to " Android9.0 http Inaccessible Solution " |
| Android 8.1 | 27 | O_MR1 | - | - |
| Android 8.0 | 26 | THE | 8.0 system notification bar adaptation | Refer to Guo Lin's " 8.0 System Notification Bar Adaptation " |
| Android 7.1.1 & Android 7.1 | 25 | N_MR1 | - | - |
| Android 7.0 | 24 | N | System permission changes | Refer to " Android 7.0 Behavior Changes " |
| Android 6.0 | 23 | M | Runtime permissions | Need to apply for permissions dynamically. For applications targeting Android 6.0 (API level 23) or higher, please be sure to check and request permissions at runtime. To determine whether your app has been granted permission, call the newly addedcheckSelfPermission( )method. To request permission, call the newly addedrequestPermissions( ) method. |
| Android 5.1 | 22 | LOLLIPOP_MR1 | - | - |
| Android 5.0 | 21 | LOLLIPOP | Android 5.0 adds support for material design style | Refer to " Android 5.0 Changes " |
| Android 4.4W | 20 | KITKAT_WATCH | - | KitKat for Wearables only |
| Android 4.4 | 19 | KITKAT | External storage space read permission, use WebView, use AlarmManager, use ContentResolver to synchronize data | Refer to " Android 4.4 Important Behavior Changes " |
| Android 4.3 | 18 | JELLY_BEAN_MR2 | - | - |
| Android 4.2、4.2.2 | 17 | JELLY_BEAN_MR1 | - | - |
| Android 4.1、4.1.1 | 16 | JELLY_BEAN | - | - |
| Android 4.0.3、4.0.4 | 15 | ICE_CREAM_SANDWICH_MR1 | - | - |
| Android 4.0、4.0.1、4.0.2 | 14 | ICE_CREAM_SANDWICH | - | - |
| Android 3.2 | 13 | HONEYCOMB_MR2 | - | - |
| Android 3.1.x | 12 | HONEYCOMB_MR1 | - | - |
| Android 3.0.x | 11 | HONEYCOMB | - | - |
| Android 2.3.4 Android 2.3.3 |
10 | GINGERBREAD_MR1 | - | - |
| Android 2.3.2 Android 2.3.1 Android 2.3 |
9 | GINGERBREAD | - | - |
| Android 2.2.x | 8 | FROYO | - | - |
| Android 2.1.x | 7 | ECLAIR_MR1 | - | - |
| Android 2.0.1 | 6 | ECLAIR_0_1 | - | - |
| Android 2.0 | 5 | ECLAIR | - | - |
| Android 1.6 | 4 | DONUT | - | - |
| Android 1.5 | 3 | CUPCAKE | - | - |
| Android 1.1 | 2 | BASE_1_1 | - | - |
| Android 1.0 | 1 | BASE | - | - |
以上重大改进和变更只是举例最有可能遇到的问题！并非全面，具体可参考以下内容
Android官网-https://developer.android.com/guide/topics/manifest/uses-sdk-element