This API is available on Firefox OS for privileged or certified applications 仅。
getDeviceStorage
method is used to access some storage area available on the device.
This method gives access to a storage area from the device's default storage, that is the storage area whose
.default
属性为
true
. This is controlled by the user via
Settings App > Media Storage > Default media location
(e.g. sdcard, internal memory, etc.) Alternatively, you can use the
getDeviceStorages
method, which returns an
数组
of
DeviceStorage
objects, one per physical storage area.
注意：
To be able to use a storage area, the application must declare it in its
application manifest
. For example, if the application wants to access the
sdcard
storage area, it must have the "
device-storage:sdcard
" permission in its manifest.
var instanceOfDeviceStorage = navigator.getDeviceStorage(storageName);
storageName
apps
: This storage area is used to store the user data needed by apps. As it is critical data, accessing this storage area requires some extra privileges and is available for certified applications only.
music
: This is the storage area where music and sounds are stored.
pictures
: This is the storage area where pictures are stored.
sdcard
: This is the storage area that gives access to the device's SDCard.
videos
: This is the storage area where videos are stored.
此方法返回
DeviceStorage
object that can be used to manage files on the associated storage area.
var sdcard = navigator.getDeviceStorage("sdcard");
Not part of any specification.