You must specify each data type that you want to use in the Info.plist of your application extension.
. NSExtensionActivationRule
.

//:
<key>NSExtensionActivationRule</key>
<dict>
<key>NSExtensionActivationSupportsImageWithMaxCount</key>
<integer>1</integer>
<key>NSExtensionActivationSupportsMovieWithMaxCount</key>
<integer>1</integer>
<key>NSExtensionActivationSupportsWebURLWithMaxCount</key>
<integer>1</integer>
</dict>