// // ios监听键盘弹起底部影藏

$(document).on('focusin', function () {

$('.footer').hide();

});

$(document).on('focusout', function () {

$('.footer').show();

});

// android监听键盘弹起底部影藏

var clientHeight =document.documentElement.clientHeight ||document.body.clientHeight;

$(window).on('resize', function () {

var nowClientHeight =document.documentElement.clientHeight ||document.body.clientHeight;

    if (clientHeight > nowClientHeight) {

$('.footer').hide();

    }

else {

$('.footer').show();

    }

});