touch = ("ontouchstart" in window) || window.DocumentTouch && document instanceof DocumentTouch;
eventType = (touch) ? "touchend" : "click";
确定是否应在某些图库导航中使用touchend或click事件.
然而不幸的是,当使用运行OS 6.0的Blackberry 9300访问该页面时,其错误地报告为启用触摸的设备并且事件不会触发.
我已经检查了所使用的检测方法,它与Modernizr中的检测方法相同.
有没有人有这个问题的解决方案？
解决方法
Unfortunately,we had a build system issue during BlackBerry 6.0 that caused builds to have WebKit touch support enabled,even for non-touch devices. It’s long been fixed,but some public builds do have this issue.
在github / Modernizr上查看这些(当前打开的)门票,了解可能的解决方法和最新的检测代码,然后根据需要尝试更改插件.如果下面的最新检测代码不起作用,您可能需要专门检测黑莓.
> https://github.com/Modernizr/Modernizr/issues/372
> https://github.com/Modernizr/Modernizr/issues/548
同时检查this touch test,browsercope选项卡表示黑莓9000已被检测为false,因此值得一试在您的设备中进行测试. http://modernizr.github.com/Modernizr/touch.html
除了您发布的代码之外,latest modernizr触摸检测源似乎还添加了@media检测.
/*
* The Modernizr.touch test only indicates if the browser supports
* touch events,which does not necessarily reflect a touchscreen
* device,as evidenced by tablets running Windows 7 or,alas,* the Palm Pre / WebOS (touch) phones.
*
* Additionally,Chrome (desktop) used to lie about its support on this,* but that has since been rectified: crbug.com/36415
*
* We also test for Firefox 4 Multitouch Support.
*
* For more info,see: modernizr.github.com/Modernizr/touch.html
*/
tests['touch'] = function() {
var bool;
if(('ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch) {
bool = true;
} else {
injectElementWithStyles(['@media (',prefixes.join('touch-enabled),('),mod,')','{#modernizr{top:9px;position:absolute}}'].join(''),function( node ) {
bool = node.offsetTop === 9;
});
}
return bool;
};
BlackBerry / PlayBook UA嗅探
要使用用户代理字符串专门检测BlackBerry设备并借鉴here和here给出的解决方案,我启动了这个小功能,您可以在http://jsbin.com/aliwur/1/edit#javascript,live测试并查看jsbin的工作,它应该解析Blackberry 5.0 / 4.0 / 6.0和Playbook来自用户代理字符串：
function rim_useragent_parser(ua) {
var info = false,model = null,model_number = null,os_version = null;
if (ua.indexOf("BlackBerry") >= 0) {
if (ua.indexOf("Version/") >= 0) {
// BlackBerry 6 and 7
model = ua.match(/BlackBerry\s[0-9]*/);
if (model) {
model_number = model[0].match(/[0-9]+/);
pos = ua.indexOf("Version/") + 8;
os_version = ua.substring(pos,pos + 3);
info = {
'model' : model[0],'model_number' : model_number[0],'os_version' : os_version
};
}
}
else {
// BlackBerry Device Software 4.2 to 5.0
model = ua.match(/^BlackBerry[0-9]*/);
if (model) {
model_number = model[0].match(/[0-9]+/);
var SplitUA = ua.split("/");
os_version = SplitUA[1].substring(0,3);
info = {
'model' : model[0],'os_version' : os_version
};
}
}
}
else if (ua.indexOf("PlayBook") >= 0) {
// PlayBook
model = ua.match(/RIM Tablet OS\s[0-9].[0-9].[0-9]/);
if (model) {
model_number = model[0].match(/[0-9].[0-9].[0-9]/);
pos = ua.indexOf("Version/") + 8;
os_version = ua.substring(pos,pos + 5);
info = {
'model' : model[0],'os_version' : os_version
};
}
}
return info;
}
当然,你可能需要将它简化为“Blackberry 9300 6.0”,我想你也可以这样做：
var ua = navigator.userAgent;
if (ua.indexOf("BlackBerry") >= 0) {
if (ua.indexOf("Version/") >= 0) {
// BlackBerry 6 and 7
var model = ua.match(/BlackBerry\s[0-9]*/);
if (model) {
var model_number = model[0].match(/[0-9]+/);
if (model_number) model_number = model_number[0];
pos = ua.indexOf("Version/") + 8;
os_version = ua.substring(pos,pos + 3);
if (os_version === '6.0' && model_number === '9300') {
// do what you need specifically for this
}
}
}
}
为了更好的通用用户代理解析,请参阅ua-parser
