提交 70dee1ba 编写于 作者: A Annie_wang

update docs

Signed-off-by: NAnnie_wang <annie.wangli@huawei.com>
上级 2e4ff7f3
......@@ -25,7 +25,7 @@ With the application sandbox mechanism, an application cannot learn the location
- The application sandbox paths and physical paths are not in one-to-one mappings. The application sandbox paths are always less than the physical paths. You may not obtain the the application sandbox path based on a physical path in certain cases, but you can obtain the physical path based on an application sandbox path.
**Figure 2** Different directory views to processes and applications
![Application sandbox path](figures/application-sandbox-path.png)
## Application File Directory and Application File Path
......@@ -65,16 +65,16 @@ The following figure shows the application file directories. The path of a file
**Table 1** Application file paths
| Folder| Context Attribute Name| Type| Description|
| Folder| Context Attribute Name| Type| Description|
| -------- | -------- | -------- | -------- |
| bundle | bundleCodeDir | Installation file directory| Directory for saving the HAPs of the application after an application is installed.<br>This directory is cleared when the application is uninstalled.<br> Do not access resource files by concatenating paths. Use [@ohos.resourceManager] instead.|
| base | NA | Directory for local device files| Directory for saving the application's persistent data on the device. Subdirectories include **files/**,** cache/**, **temp/**, and **haps/**.<br>This directory is cleared when the application is uninstalled.|
| database | databaseDir | Database directory| Directory in **el1** for saving the files operated by the distributed database service.<br>This directory is cleared when the application is uninstalled.|
| distributedfiles | distributedFilesDir | Distributed file directory| Directory in **el2** for saving the application files that can be directly accessed across devices.<br>This directory is cleared when the application is uninstalled.|
| files | filesDir | Application file directory| Directory for saving the application's persistent files on the device.<br>This directory is cleared when the application is uninstalled.|
| cache | cacheDir | Application cache file directory| Directory for caching the downloaded files of the application or saving the cache files regenerated on the device.<br>This directory is automatically cleared when the size of the **cache** directory reaches the quota or the system storage space reaches a certain threshold. The user can also clear this directory by using a system space management application. <br>The application needs to check whether the file still exists and determine whether to cache the file again.|
| preferences | preferencesDir | Preferences file directory| Directory for saving common application configuration and user preference data managed by using database APIs.<br>This directory is cleared when the application is uninstalled. For details, see [Persisting Preferences Data](../database/data-persistence-by-preferences.md).|
| temp | tempDir | Temporary file directory| Directory for saving the files generated and required during the application's runtime on the device. <br>This directory is cleared when the application exits.|
| bundle | bundleCodeDir | Installation file directory| Directory for saving the HAPs of the application after an application is installed.<br>This directory is cleared when the application is uninstalled.<br> Do not access resource files by concatenating paths. Use [@ohos.resourceManager](../reference/apis/js-apis-resource-manager.md) instead. |
| base | NA | Directory for local device files| Directory for saving the application's persistent data on the device. Subdirectories include **files/**, **cache/**, **temp/**, and **haps/**.<br>This directory is cleared when the application is uninstalled. |
| database | databaseDir | Database directory| Directory in **el1** for saving the files operated by the distributed database service.<br>This directory is cleared when the application is uninstalled.|
| distributedfiles | distributedFilesDir | Distributed file directory| Directory in **el2** for saving the application files that can be directly accessed across devices.<br>This directory is cleared when the application is uninstalled.|
| files | filesDir | Application file directory| Directory for saving the application's persistent files on the device.<br>This directory is cleared when the application is uninstalled.|
| cache | cacheDir | Application cache file directory| Directory for caching the downloaded files of the application or saving the cache files regenerated on the device.<br>This directory is automatically cleared when the size of the **cache** directory reaches the quota or the system storage space reaches a certain threshold. The user can also clear this directory by using a system space management application. <br>The application needs to check whether the file still exists and determine whether to cache the file again.|
| preferences | preferencesDir | Preferences file directory| Directory for saving common application configuration and user preference data managed by using database APIs.<br>This directory is cleared when the application is uninstalled. For details, see [Persisting Preferences Data](../database/data-persistence-by-preferences.md).|
| temp | tempDir | Temporary file directory| Directory for saving the files generated and required during the application's runtime on the device. <br>This directory is cleared when the application exits.|
The application file paths are used in the following scenarios:
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