content/documentsUi/ScopedDirectoryAccess/template-params.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
 Copyright 2016 The Android Open Source Project

 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

     http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
-->

<sample>
    <name>ScopedDirectoryAccess</name>
    <group>Content</group>  <!-- This field will be deprecated in the future
                            and replaced with the "categories" tags below. -->
    <package>com.example.android.scopeddirectoryaccess</package>

    <minSdk>24</minSdk>
    <compileSdkVersion>27</compileSdkVersion>
    <targetSdkVersion>24</targetSdkVersion>

    <!-- Include additional dependencies here.-->
    <dependency>com.android.support:recyclerview-v7:27.0.2</dependency>

    <template src="base" />

    <strings>
        <intro>
<![CDATA[
This sample demonstrates how to use the Scoped Directory Access API introduced in Android N
to easily access to specific directories such as Pictures, Downloads instead of requesting
READ_EXTERNAL_STORAGE or WRITE_EXTERNAL_STORAGE in your manifest.
]]>
        </intro>
    </strings>

    <metadata>
        <status>PUBLISHED</status>
        <categories>Content</categories>
        <technologies>Android</technologies>
        <languages>Java</languages>
        <solutions>Mobile</solutions>
        <level>BEGINNER</level>
        <icon>screenshots/icon-web.png</icon>
        <screenshots>
            <img>screenshots/1.png</img>
            <img>screenshots/2.png</img>
            <img>screenshots/3.png</img>
        </screenshots>
        <api_refs>
            <android>android.os.storage.StorageManager</android>
            <android>android.os.storage.StorageVolume</android>
        </api_refs>

        <description>
<![CDATA[
This sample demonstrates how to use the Scoped Directory Access API introduced in Android N
to easily access to specific directories such as Pictures, Downloads instead of requesting
READ_EXTERNAL_STORAGE or WRITE_EXTERNAL_STORAGE in your manifest.
]]>
        </description>

        <!-- Multi-paragraph introduction to sample, from an educational point-of-view.
        Makrdown formatting allowed. This will be used to generate a mini-article for the
        sample on DAC. -->
        <intro>
<![CDATA[
This sample demonstrates how to use the Scoped Directory Access API that provides easy way to
access specific directories instead of:
 - Requesting READ_EXTERNAL_STORAGE or WRITE_EXTERNAL_STORAGE in your manifest, which allows
   access to all public directories on external storage.
 - Using the Storage Access Framework, where the user usually picks directories via a System UI,
   which is unnecessary if you app always accesses to the same external directory.

To access to a specific directory, use a new Intent created using the StorageVolume class like
following:

```
StorageManager sm = getSystemService(StorageManager.class);
StorageVolume volume = sm.getPrimaryVolume();
Intent intent = volume.createAccessIntent(Environment.DIRECTORY_PICTURES);
startActivityForResult(intent, request_code);
```

Note that the argument passed to StorageVolume.createAccessIntent needs to be one of the
values of Environment.DIRECTORY_\*.

Once the user grants the access, `onActivityResult` override will be called with a
result code of `Activity.RESULT_OK` and an intent data that contains the URI representing
the directory.
]]>
        </intro>
    </metadata>
</sample>