iOS select onchange not firing

问题:

Does anyone know any workarounds for this? I'm trying to use a select element for navigation. It looks something like this;

<select onchange="window.location=(this.options[this.selectedIndex].value)">

It works on all desktop browsers and it also works on my WP7 phone. It doesn't work on my iPhone (iOS 5.0).

回答1:

iOS tends to not fire change events when you change the value of their inputs. I've documented this in more depth at the Device-Bugs tracker.

The workaround is to bind to the blur event instead. In the above example, use onblur and you'll be all set.

<select onblur="window.location=(this.options[this.selectedIndex].value)">

回答2:

I just ended up setting the form action to a php page that redirects the page. You don't even need a submit button (although you may as well add one for graceful degradation then hide it with js), the iOS list picker widget automatically triggers the form action when it's 'Done' button is pressed.

I originally wanted to avoid form actions and submit buttons because I felt the js onChange approach was cleaner, but I'm fine with using php on iOS since it doesn't require the submit button.

回答3:

If you change onchange to onblur it works for iOS but not others. The fix I eventually came to was to use BOTH onblur and onchange. Seems redundant but has the desired effect.