PicturesService Android: Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.content.FileProvider

[WangHengZhi]

add privider code from here

<manifest package="${application.package.name}" ...>
    <uses-permission android:name="android.permission.CAMERA"/>
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <application ...>
       ...
       <activity android:name="com.gluonhq.attach.android.PermissionRequestActivity" />
       <provider
           android:name="android.support.v4.content.FileProvider"
           android:authorities="${application.package.name}.fileprovider"
           android:exported="false"
           android:grantUriPermissions="true">
           <meta-data
               android:name="android.support.FILE_PROVIDER_PATHS"
               android:resource="@xml/file_provider_paths" />
       </provider>
   </application>
 </manifest>

but when run in android, get a error, Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.content.FileProvider

the android.support.v4.content.FileProvider is old version, when i use androidx.core.content.FileProvider, it is right.

is javadoc old?