1# application_context.h
2
3
4## 概述
5
6声明应用级别的上下文能力。
7
8**库**：libability_runtime.so
9
10**系统能力**：SystemCapability.Ability.AbilityRuntime.Core
11
12**起始版本**：13
13
14**相关模块**：[AbilityRuntime](_ability_runtime.md)
15
16
17## 汇总
18
19### 文件
20
21| 名称                                                | 描述                                                         |
22| --------------------------------------------------- | ------------------------------------------------------------ |
23| [application_context.h](application__context_8h.md) | 声明应用级别的上下文能力。<br/>**引用文件**：<AbilityKit/ability_runtime/application_context.h><br/>**库**：libability_runtime.so |
24
25### 函数
26
27| 名称                                                         | 描述                         |
28| ------------------------------------------------------------ | ---------------------------- |
29| [AbilityRuntime_ErrorCode](_ability_runtime.md#abilityruntime_errorcode) [OH_AbilityRuntime_ApplicationContextGetCacheDir](_ability_runtime.md#oh_abilityruntime_applicationcontextgetcachedir)(char* buffer, int32_t bufferSize, int32_t* writeLength) | 获取应用级别的缓存目录。     |
30| [AbilityRuntime_ErrorCode](_ability_runtime.md#abilityruntime_errorcode) [OH_AbilityRuntime_ApplicationContextGetAreaMode](_ability_runtime.md#oh_abilityruntime_applicationcontextgetareamode)([AbilityRuntime_AreaMode](_ability_runtime.md#abilityruntime_areamode)* areaMode) | 获取应用级别的数据加密等级。 |
31| [AbilityRuntime_ErrorCode](_ability_runtime.md#abilityruntime_errorcode) [OH_AbilityRuntime_ApplicationContextGetBundleName](_ability_runtime.md#oh_abilityruntime_applicationcontextgetbundlename)(char* buffer, int32_t bufferSize, int32_t* writeLength) | 获取应用包名。               |