ImageFileProvider

AndroidManifest.xml

<manifest>
  <application>
    ...
    <provider
        android:name=".widget.image.ImageFileProvider"
        android:authorities="${applicationId}.provider"
        android:exported="false"
        android:grantUriPermissions="true">
        <meta-data
            android:name="android.support.FILE_PROVIDER_PATHS"
            android:resource="@xml/image_paths" />
    </provider>
  </application>
</manifest>

image_paths.xml

<?xml version="1.0" encoding="utf-8"?>
<paths>
    <cache-path name="widget_images" path="image_cache/" />
</paths>

ImageFileProvider.kt

class ImageFileProvider : FileProvider()