JavaScript in iOS that responses to programmatic calls -

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i'm using processing hype framework create visualizations , want put in ios app. i've searched around bit , looks easiest solution export processing js , put in uiwebview.

the part i'm unsure need able send input js adjust visualization on steady timer. first thought can set key listeners in js, , programmatically simulate key press within app. possible? there other solutions?

not javascript expert know can run js in uiwebview. eg:

// nsstring *innerhtml = [self.mywebview stringbyevaluatingjavascriptfromstring:@"document.documentelement.innerhtml"];  // set [self.mywebview stringbyevaluatingjavascriptfromstring:@"document.documentelement.innerhtml"];

i hope guides in right direction.

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