所以我目前使用的是:
$(window).resize(function(){resizedw();});
但是在调整大小过程中,这个函数会被调用很多次。是否有可能在事件结束时捕获事件?
所以我目前使用的是:
$(window).resize(function(){resizedw();});
但是在调整大小过程中,这个函数会被调用很多次。是否有可能在事件结束时捕获事件?
当前回答
窗口的ResizeStart和ResizeEnd事件
http://jsfiddle.net/04fLy8t4/
我实现了一个函数,它在用户DOM元素上触发两个事件:
调整大小开始 调整大小结束
代码:
var resizeEventsTrigger = (function () {
function triggerResizeStart($el) {
$el.trigger('resizestart');
isStart = !isStart;
}
function triggerResizeEnd($el) {
clearTimeout(timeoutId);
timeoutId = setTimeout(function () {
$el.trigger('resizeend');
isStart = !isStart;
}, delay);
}
var isStart = true;
var delay = 200;
var timeoutId;
return function ($el) {
isStart ? triggerResizeStart($el) : triggerResizeEnd($el);
};
})();
$("#my").on('resizestart', function () {
console.log('resize start');
});
$("#my").on('resizeend', function () {
console.log('resize end');
});
window.onresize = function () {
resizeEventsTrigger( $("#my") );
};
其他回答
就窗口管理器而言,每个调整大小事件都是它自己的消息,具有不同的开始和结束,因此从技术上讲,每次调整窗口大小时,它都是结束。
话虽如此,也许你想推迟你的延续?举个例子。
var t = -1;
function doResize()
{
document.write('resize');
}
$(document).ready(function(){
$(window).resize(function(){
clearTimeout(t);
t = setTimeout(doResize, 1000);
});
});
我不知道我的代码是否适用于其他人,但它对我来说真的很好。我通过分析Dolan Antenucci的代码得到了这个想法,因为他的版本不适合我,我真的希望它能对别人有所帮助。
var tranStatus = false;
$(window).resizeend(200, function(){
$(".cat-name, .category").removeAttr("style");
//clearTimeout(homeResize);
$("*").one("webkitTransitionEnd otransitionend oTransitionEnd msTransitionEnd transitionend",function(event) {
tranStatus = true;
});
processResize();
});
function processResize(){
homeResize = setInterval(function(){
if(tranStatus===false){
console.log("not yet");
$("*").one("webkitTransitionEnd otransitionend oTransitionEnd msTransitionEnd transitionend",function(event) {
tranStatus = true;
});
}else{
text_height();
clearInterval(homeResize);
}
},200);
}
更新!
我还创造了一个更好的选择: https://stackoverflow.com/a/23692008/2829600 (支持“删除功能”)
原来的帖子:
我写了这个简单的函数来处理执行中的延迟,在jQuery .scroll()和.resize()中很有用,所以callback_f只会对特定的id字符串运行一次。
function delay_exec( id, wait_time, callback_f ){
// IF WAIT TIME IS NOT ENTERED IN FUNCTION CALL,
// SET IT TO DEFAULT VALUE: 0.5 SECOND
if( typeof wait_time === "undefined" )
wait_time = 500;
// CREATE GLOBAL ARRAY(IF ITS NOT ALREADY CREATED)
// WHERE WE STORE CURRENTLY RUNNING setTimeout() FUNCTION FOR THIS ID
if( typeof window['delay_exec'] === "undefined" )
window['delay_exec'] = [];
// RESET CURRENTLY RUNNING setTimeout() FUNCTION FOR THIS ID,
// SO IN THAT WAY WE ARE SURE THAT callback_f WILL RUN ONLY ONE TIME
// ( ON LATEST CALL ON delay_exec FUNCTION WITH SAME ID )
if( typeof window['delay_exec'][id] !== "undefined" )
clearTimeout( window['delay_exec'][id] );
// SET NEW TIMEOUT AND EXECUTE callback_f WHEN wait_time EXPIRES,
// BUT ONLY IF THERE ISNT ANY MORE FUTURE CALLS ( IN wait_time PERIOD )
// TO delay_exec FUNCTION WITH SAME ID AS CURRENT ONE
window['delay_exec'][id] = setTimeout( callback_f , wait_time );
}
// USAGE
jQuery(window).resize(function() {
delay_exec('test1', 1000, function(){
console.log('1st call to delay "test1" successfully executed!');
});
delay_exec('test1', 1000, function(){
console.log('2nd call to delay "test1" successfully executed!');
});
delay_exec('test1', 1000, function(){
console.log('3rd call to delay "test1" successfully executed!');
});
delay_exec('test2', 1000, function(){
console.log('1st call to delay "test2" successfully executed!');
});
delay_exec('test3', 1000, function(){
console.log('1st call to delay "test3" successfully executed!');
});
});
/* RESULT
3rd call to delay "test1" successfully executed!
1st call to delay "test2" successfully executed!
1st call to delay "test3" successfully executed!
*/
我采取了稍微不同的策略,依赖于mouseUp作为调整大小事件的结束。trackSize在documentReady上被调用,然后也设置了wide的初始值。
var THRESHOLD = 784;
var TALL = 125, SHORT = 50;
var wide = (window.document.body.clientWidth >= THRESHOLD );
function trackSize() {
if( !wide ) {
setHeight( TALL );
} else {
setHeight( SHORT );
}
parent.window.addEventListener('resize', onResize);
}
function onResize(e) {
parent.window.removeEventListener('resize', onResize);
parent.window.addEventListener('mouseup', onMouseUp) ;
}
function onMouseUp(e) {
parent.window.removeEventListener('mouseup', onMouseUp);
wide = (window.document.body.clientWidth >= THRESHOLD);
trackSize();
}
在设置了窗口的初始高度之后,我们开始监听调整大小事件。当它开始时,我们停止监听并开始监听mouseUp事件。因此,我们知道mouseUp将结束调整大小。在mouseUp中,我们停止监听并根据窗口的宽度设置切换,然后循环回trackSize。
trackSize首先根据切换设置窗口的高度——如果低于阈值,则增加高度(因为Bootstrap列的堆栈宽度较小),否则设置为标准。然后我们再听下一个调整大小的事件。
注意:这个解决方案并不真正适用于使用最大化或恢复窗口按钮立即调整大小。也许添加一个像isMouseDown这样的测试并绕过鼠标监听器就足够了——我还没有测试过。
你可以使用setTimeout()和clearTimeout()
function resizedw(){
// Haven't resized in 100ms!
}
var doit;
window.onresize = function(){
clearTimeout(doit);
doit = setTimeout(resizedw, 100);
};
jsfiddle上的代码示例。