This API is available on Firefox OS for privileged or certified applications 仅。
getDeviceStorages
method is used to access individual storage areas available on the device. This method return an
数组
of
DeviceStorage
objects, one per physical storage area. Each storage area will have a name, retrievable using the
.storageName
attribute (see below).
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 areas = navigator.getDeviceStorages(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 SDCards.
videos
: This is the storage area where videos are stored.
This method returns an
数组
of
DeviceStorage
objects that can be used to manage files on the associated physical storage area.
var sdcards = navigator.getDeviceStorages("sdcard");
console.log("There are " + sdcards.length + " SDCards available.");
Not part of any specification.