What is the usage of FileProvider in Android?

FileProvider is a unique type of ContentProvider used for sharing files within an Android application. It allows applications to store and access files in private directories, providing secure access permissions to these files. FileProvider can be configured in the AndroidManifest.xml file, specifying the paths and access permissions for the files that need to be shared.

With FileProvider, applications can share files by providing the URI of the file without exposing the actual path of the file. This helps protect the privacy and security of the files. Additionally, FileProvider can assist applications in handling changes to Android’s file access permissions, such as the Android File System Access Permissions rules introduced in Android 7.0 and higher versions.

In order to use FileProvider, you must first register it in the AndroidManifest.xml file and specify the path of the files to be shared. Then, you can use the FileProvider.getUriForFile() method to obtain the URI of the file and pass it to other applications or system components for access. Lastly, you also need to request appropriate file read and write permissions in the manifest file of the app.

In short, the main purpose of FileProvider is to assist applications in securely sharing files on the Android platform and provide secure access permissions to files.