Android 5.0 Lollipop brings back Full MicroSD Access support with Improved Security
Android 5.0 Lollipop brings back Full MicroSD Access support with Improved Security
Android Kitkat brought many storage problems and headache to the App developers, users complained about this many times and the only solution is to Root your phone to be able to transfer files from the Internal storage to the external storage (microSD cards). Google finally solved this problem with Lollipop.
Now with the release of the final version of Android 5.0 Lollipop, new APIs were added to allow apps to request full access to directories owned by other providers. These APIs have been improved to offer more capabilities than before, and they do it in a very user-friendly and secure way. You'll no longer have to Root your phone to access/modify your microSD data.
Here's what Google Developers said about lollipop shared storage devices:
Richer access to secondary shared storage devices
In KitKat we introduced APIs that let apps read/write file in app-specific directories on secondary storage devices, such as SD cards.
We heard loud and clear that developers wanted richer access beyond these directories, so in Lollipop we added the new ACTION_OPEN_DOCUMENT_TREE intent.
Apps can launch this intent to pick and return a directory from any supported DocumentProvider, including any of the shared storage supported by the device.
Apps can then create, update, and delete files and directories anywhere under the picked tree without any additional user interaction. Just like the other document intents, apps can persist this access across reboots.
This gives apps broad, powerful access to manage files while still involving the user in the initial selection process.
Users may choose to give your app access to a narrow directory like "My Vacation Photos," or they could pick the top-level of an entire SD card; the choice is theirs.
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