问题描述
我已经创建了一个像这样的jQuery Mobile flipswitch
I've created an jQuery Mobile flipswitch like this
<select id="flip" data-role="flipswitch">
<option value="animal">Lion</option>
<option value="flower">Rose</option>
</select>
我听这个flipswitch上的更改
and I listen to changes on this flipswitch
$( document ).on( 'change', '#flip', function( e ) {
console.log( 'changed' );
}
但是,如果我将flipswitch的值更改为
But I don't want the event to be triggered if I change the value of the flipswitch by
$( '#flip' ).val( 'flower' ).flipswitch( 'refresh' );
如何通过与其直接交互或设置值并刷新flipswitch来检查flipswitch是否已更改?
How do I check if a flipswitch has changed by interacting with it directly or setting a value and refreshing the flipswitch?
我在。
推荐答案
您需要使用 .on()
附加更改
事件和 .off()
以删除它 - 在再次绑定之前 - 每当更改值动态地。
You need to use .on()
to attach change
event and .off()
to remove it - before you bind it again - whenever you change the value dynamically.
de pagecreate
事件,它相当于 .ready()
。
Wrap all your code in pagecreate
event, it is equvilant to .ready()
.
$(document).on("pagecreate", "#main", function () {
/* change event handler */
function flipChanged(e) {
var id = this.id,
value = this.value;
console.log(id + " has been changed! " + value);
}
/* add listener - this will be removed once other buttons are clicked */
$("#flip").on("change", flipChanged);
$('#setlion').on('vclick', function (e) {
$("#flip")
.off("change") /* remove previous listener */
.val('animal') /* update value */
.flipswitch('refresh') /* re-enhance switch */
.on("change", flipChanged); /* add listener again */
});
$('#setrose').on('vclick', function (e) {
$("#flip")
.off("change")
.val('flower')
.flipswitch('refresh')
.on("change", flipChanged);
});
});
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