Storage Space Statistics
Introduction
This sample presents how to view the storage space usage, space of all installed applications, and available volumes of a device by using the application bundle management, application space statistics, and volume management modules.
This sample uses the <DataPanel component> to display the space information about different applications; uses Bundle to obtain the application name and bundle information; uses App Space Statistics to obtain the storage space usage of the device; use Volume Management to obtain information about available volumes of the device. Instructions:
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The main page displays the detailed information about the storage space usage of the current device.
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Tap Application to view the space of all installed applications.
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Tap View Available Volumes to view information about all available volumes of the device.
Display Effect
Required Permissions
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Permission to obtain storage space information and available volumes: ohos.permission.STORAGE_MANAGER
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Permission to obtain information about installed applications: ohos.permission.GET_BUNDLE_INFO_PRIVILEGED
Dependency
N/A
Constraints
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This sample can only be run on standard-system devices that use the Rockchip RK3568 development board.
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This sample is based on the stage model, which is supported from API version 10 (API Version 10 Release).
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DevEco Studio (4.0 Release) must be used.
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This sample uses the @ohos.bundle.innerBundleManager, @ohos.volumeManager, and @ohos.storageStatistics system APIs. To use the full SDK, obtain it from a mirror site and switch to it in DevEco Studio. For details, see Guide to Switching to Full SDK.
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This example uses the system_core permissions (see App Permission List). You need to configure a high-level permission signature.