harmony 鸿蒙Sharing an Application File

2023-06-24
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Sharing an Application File

An application can share a file with another application based on the uniform resource identifier (URI) of the file.

Using startAbility to Start a File Application

startAbility-based file sharing: You can use wantConstant.Flags to specify the read or read/write permission on the file for the target application (application with which the file is shared). The target application can call fs.open to open the file based on the URI and perform read and write operations.

Shareable Application Directories

Application Sandbox Path	Description &emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;&emsp;
/data/storage/el1/base	Encrypted database directory under /el1.
/data/storage/el2/base	Encrypted database directory under /el2.
/data/storage/el2/distributedfiles	Distributed data directory with an account under el2/.

File URI Specifications

The file URIs are in the following format:

file://<bundleName>/<path>

file: indicates a file URI.
bundleName: specifies the owner of the file, that is, the application that shares the file.
path: specifies the application sandbox path of the file.