Content Provider

The Content Provider functions as an intermediary, facilitating access to the private data or files of your application by other applications.

FileProvider (Share files with other apps)

Setup a provider in AndroidManifest.xml

<provider
          android:name="androidx.core.content.FileProvider"
          android:authorities="${applicationId}.provider"
          android:exported="false"
          android:grantUriPermissions="true">
    <meta-data
               android:name="android.support.FILE_PROVIDER_PATHS"
               android:resource="@xml/paths" />
</provider>

Give other apps permission to access app private external storage

Create res/xml/paths.xml:

<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
    <external-files-path name="external_dir" path="." />
</paths>

Get URI to share with other apps

val cameraCaptureUri = FileProvider.getUriForFile(
    context,
    "${context.packageName}.provider",
    File(context.getExternalFilesDir("image"), "image_${System.currentTimeMillis()}.png")
)

⚠️ Make sure the requested path is defined in the FILE_PROVIDER_PATHS resource, or else you’ll get a security exception.

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