Lines Matching full:external
1 page.title=External Storage
20 <img style="float: right; margin: 0px 15px 15px 15px;" src="images/ape_fwk_hal_extstor.png" alt="Android external storage HAL icon"/>
22 <p>Android supports devices with external storage, which is defined to be a
24 modes. External storage can be provided by physical media (such as an SD
26 layer. Devices may contain multiple instances of external storage.</p>
28 <p>Access to external storage is protected by various Android
34 <p>Starting in Android 4.4, the owner, group and modes of files on external
36 enables apps to manage their package-specific directories on external
40 <code>Android/data/com.example.foo/</code> on external storage devices with
44 <p>Since external storage offers minimal protection for stored data, system
45 code should not store sensitive data on external storage. Specifically,
50 <h2 id="multiple-external-storage-devices">Multiple external storage devices</h2>
52 <p>Starting in Android 4.4, multiple external storage devices are surfaced
57 </p>External storage devices surfaced through these APIs must be a
65 access to the primary external storage on a device. Apps must not be
66 allowed to write to secondary external storage devices, except in their
72 <h2 id="multi-user-external-storage">Multi-user external storage</h2>
74 <p>Starting in Android 4.2, devices can support multiple users, and external
78 <li>Each user must have their own isolated primary external storage, and
79 must not have access to the primary external storage of other users.</li>
81 primary external storage based on the user a process is running as.</li>
84 <li>Secondary external storage must not be writable by apps, except in
90 and then uses bind mounts to offer the correct user-specific primary external
93 <p>At boot, the system mounts a single emulated external storage FUSE daemon
97 external storage paths resolve correctly for the app. Because an app lacks
