How to handle NSExtensionActivationRule is truepredicate?

Question

I got warning: Embedded binary's NSExtensionActivationRule is TRUEPREDICATE. Before you submit your containing app to the App Store, be sure to replace all uses of TRUEPREDICATE with specific predicate statements or NSExtensionActivationRule keys. If any extensions in your containing app include TRUEPREDICATE, the app will be rejected

what can I do? I try to modify NSExtension, but I really don't figure out how to solve it.

Answer 1

You have to specify every data type you want to use in Info.plist of your App Extension.

See the documentation for the available keys. Look for NSExtensionActivationRule.

//UPDATE:

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

Answer 2

I wanted my app to accept text only. This is what works:

...
<key>NSExtensionAttributes</key>
    <dict>
        <key>NSExtensionActivationUsesStrictMatching</key>
        <integer>2</integer>
        <key>NSExtensionActivationRule</key>
        <dict>
            <key>NSExtensionActivationDictionaryVersion</key>
            <integer>2</integer>
            <key>NSExtensionActivationSupportsText</key>
            <true/>
        </dict>
    </dict>
...