Question

Situation:
I have an UIView with an UIWebView in it.
When the viewDidLoad the Javascript Object inside the UIWebView is called (Microsoft Seadragon AJAX JS).

For your Understanding:
Seadragon loads a specified megapixel image(JPEG) and in a Desktop Browser like Firefox i can Zoom into the image and I can drag the crop for example from the middle to the left.

In the iPhone Simulator (for iPad) only the Zooming Function is working on one single tap but when i try to drag the crop (with left mouse button click and holding it) I’m dragging the whole UIWebView but not the crop of course!

Is that feature which the simulator isn’t able to handle or what’s yout solutin guys?

Special Thanks!!

P.S.: It’s a bit jiggling when the zooming function of Seadragon is called. Is that authentic to the real performance of the iPad or does the simulator not have the power as the iPad has?

Answer 1

You can prevent scrolling in your UIWebView by including this javascript:

document.addEventListener("touchmove", touchMove, false);

function touchMove(event) {
    event.preventDefault();
}

With scrolling disabled, your javascript should receive normal mousemove events.