How do I use touch functions in a webview

beginners
#1

I want to add webview as UI on the 3d scene,

By setting the WebView. SetBackgroundColor (android. R.c olor. Transparent), i can see the 3 d scene

But OfEasyCam, ofApp: : touchDown, ofApp: : touchUp cannot trigger, who can help me
@ arturo@arturo