我想使用 javascript 动态更改 jquery-mobile 按钮颜色样本，但我找不到方法（除了删除和添加所有类和事件处理程序，但这很麻烦）。
最好的方法是什么？
【问题讨论】：
标签： jquery-mobile themes
至少在 1.2.0 (1.2.0-rc1) 中它很简单（可能在次要版本中有效）：
$( "#myButton" ).buttonMarkup({theme: 'd'});
不需要.button('refresh')
【讨论】：
嗯，我确实做了这样的事情：
JS（可能需要稍作调整才能得到你想要的）
$('input[name=theme-options]').change(function() {
var currentTheme = $('#home').attr('data-theme');
var selectedTheme = $(this).val();
alert('CT '+currentTheme+' ST '+selectedTheme);
$('.ui-body-' + currentTheme).each(function(){
$(this).removeClass('ui-body-' + currentTheme).addClass('ui-body-' + selectedTheme);
});
$('.ui-btn-up-' + currentTheme).each(function(){
$(this).removeClass('ui-btn-up-' + currentTheme).addClass('ui-btn-up-' + selectedTheme);
});
$('.ui-btn-down-' + currentTheme).each(function(){
$(this).removeClass('ui-btn-down-' + currentTheme).addClass('ui-btn-down-' + selectedTheme);
});
$('#home').find('*[data-theme]').each(function(index){
$(this).attr('data-theme',selectedTheme);
});
$('#home').attr('data-theme', selectedTheme).removeClass('ui-body-' + currentTheme).addClass('ui-body-' + selectedTheme).trigger('create');
});
HTML（可能需要稍作调整才能得到你想要的）
<div data-role="page" id="home" data-theme="a">
<div data-role="content">
<div class="content-primary">
<p>
<div data-role="fieldcontain">
<fieldset data-role="controlgroup">
<legend>Choose a Theme:</legend>
<input type="radio" name="theme-options" id="theme-option-a" value="a" checked="checked" data-theme="a" />
<label for="theme-option-a" data-theme="a">Theme A</label>
<input type="radio" name="theme-options" id="theme-option-b" value="b" data-theme="b" />
<label for="theme-option-b" data-theme="b">Theme B</label>
<input type="radio" name="theme-options" id="theme-option-c" value="c" data-theme="c" />
<label for="theme-option-c" data-theme="c">Theme C</label>
<input type="radio" name="theme-options" id="theme-option-d" value="d" data-theme="d" />
<label for="theme-option-d" data-theme="d">Theme D</label>
<input type="radio" name="theme-options" id="theme-option-e" value="e" data-theme="e" />
<label for="theme-option-e" data-theme="e">Theme E</label>
</fieldset>
</div>
</p>
<form action="#" method="get">
<h2>Form elements</h2>
<div data-role="fieldcontain">
<label for="name">Text Input:</label>
<input type="text" name="name" id="name" value="" />
</div>
<div data-role="fieldcontain">
<label for="textarea">Textarea:</label>
<textarea cols="40" rows="8" name="textarea" id="textarea"></textarea>
</div>
<div data-role="fieldcontain">
<label for="search">Search Input:</label>
<input type="search" name="password" id="search" value="" />
</div>
<div data-role="fieldcontain">
<label for="slider2">Flip switch:</label>
<select name="slider2" id="slider2" data-role="slider">
<option value="off">Off</option>
<option value="on">On</option>
</select>
</div>
<div data-role="fieldcontain">
<label for="slider">Slider:</label>
<input type="range" name="slider" id="slider" value="0" min="0" max="100" />
</div>
<div data-role="fieldcontain">
<fieldset data-role="controlgroup">
<legend>Choose as many snacks as you'd like:</legend>
<input type="checkbox" name="checkbox-1a" id="checkbox-1a" class="custom" />
<label for="checkbox-1a">Cheetos</label>
<input type="checkbox" name="checkbox-2a" id="checkbox-2a" class="custom" />
<label for="checkbox-2a">Doritos</label>
<input type="checkbox" name="checkbox-3a" id="checkbox-3a" class="custom" />
<label for="checkbox-3a">Fritos</label>
<input type="checkbox" name="checkbox-4a" id="checkbox-4a" class="custom" />
<label for="checkbox-4a">Sun Chips</label>
</fieldset>
</div>
<div data-role="fieldcontain">
<fieldset data-role="controlgroup" data-type="horizontal">
<legend>Font styling:</legend>
<input type="checkbox" name="checkbox-6" id="checkbox-6" class="custom" />
<label for="checkbox-6">b</label>
<input type="checkbox" name="checkbox-7" id="checkbox-7" class="custom" />
<label for="checkbox-7"><em>i</em></label>
<input type="checkbox" name="checkbox-8" id="checkbox-8" class="custom" />
<label for="checkbox-8">u</label>
</fieldset>
</div>
<div data-role="fieldcontain">
<fieldset data-role="controlgroup">
<legend>Choose a pet:</legend>
<input type="radio" name="radio-choice-1" id="radio-choice-1" value="choice-1" checked="checked" />
<label for="radio-choice-1">Cat</label>
<input type="radio" name="radio-choice-1" id="radio-choice-2" value="choice-2" />
<label for="radio-choice-2">Dog</label>
<input type="radio" name="radio-choice-1" id="radio-choice-3" value="choice-3" />
<label for="radio-choice-3">Hamster</label>
<input type="radio" name="radio-choice-1" id="radio-choice-4" value="choice-4" />
<label for="radio-choice-4">Lizard</label>
</fieldset>
</div>
<div data-role="fieldcontain">
<fieldset data-role="controlgroup" data-type="horizontal">
<legend>Layout view:</legend>
<input type="radio" name="radio-choice-b" id="radio-choice-c" value="on" checked="checked" />
<label for="radio-choice-c">List</label>
<input type="radio" name="radio-choice-b" id="radio-choice-d" value="off" />
<label for="radio-choice-d">Grid</label>
<input type="radio" name="radio-choice-b" id="radio-choice-e" value="other" />
<label for="radio-choice-e">Gallery</label>
</fieldset>
</div>
<div data-role="fieldcontain">
<label for="select-choice-1" class="select">Choose shipping method:</label>
<select name="select-choice-1" id="select-choice-1">
<option value="standard">Standard: 7 day</option>
<option value="rush">Rush: 3 days</option>
<option value="express">Express: next day</option>
<option value="overnight">Overnight</option>
</select>
</div>
<div data-role="fieldcontain">
<label for="select-choice-3" class="select">Your state:</label>
<select name="select-choice-3" id="select-choice-3">
<option value="AL">Alabama</option>
<option value="AK">Alaska</option>
<option value="AZ">Arizona</option>
<option value="AR">Arkansas</option>
<option value="CA">California</option>
<option value="CO">Colorado</option>
<option value="CT">Connecticut</option>
<option value="DE">Delaware</option>
<option value="FL">Florida</option>
<option value="GA">Georgia</option>
<option value="HI">Hawaii</option>
<option value="ID">Idaho</option>
<option value="IL">Illinois</option>
<option value="IN">Indiana</option>
<option value="IA">Iowa</option>
<option value="KS">Kansas</option>
<option value="KY">Kentucky</option>
<option value="LA">Louisiana</option>
<option value="ME">Maine</option>
<option value="MD">Maryland</option>
<option value="MA">Massachusetts</option>
<option value="MI">Michigan</option>
<option value="MN">Minnesota</option>
<option value="MS">Mississippi</option>
<option value="MO">Missouri</option>
<option value="MT">Montana</option>
<option value="NE">Nebraska</option>
<option value="NV">Nevada</option>
<option value="NH">New Hampshire</option>
<option value="NJ">New Jersey</option>
<option value="NM">New Mexico</option>
<option value="NY">New York</option>
<option value="NC">North Carolina</option>
<option value="ND">North Dakota</option>
<option value="OH">Ohio</option>
<option value="OK">Oklahoma</option>
<option value="OR">Oregon</option>
<option value="PA">Pennsylvania</option>
<option value="RI">Rhode Island</option>
<option value="SC">South Carolina</option>
<option value="SD">South Dakota</option>
<option value="TN">Tennessee</option>
<option value="TX">Texas</option>
<option value="UT">Utah</option>
<option value="VT">Vermont</option>
<option value="VA">Virginia</option>
<option value="WA">Washington</option>
<option value="WV">West Virginia</option>
<option value="WI">Wisconsin</option>
<option value="WY">Wyoming</option>
</select>
</div>
<div data-role="fieldcontain">
<label for="select-choice-a" class="select">Choose shipping method:</label>
<select name="select-choice-a" id="select-choice-a" data-native-menu="false">
<option>Custom menu example</option>
<option value="standard">Standard: 7 day</option>
<option value="rush">Rush: 3 days</option>
<option value="express">Express: next day</option>
<option value="overnight">Overnight</option>
</select>
</div>
<div class="ui-body ui-body-b">
<fieldset class="ui-grid-a">
<div class="ui-block-a"><button type="submit" data-theme="d">Cancel</button></div>
<div class="ui-block-b"><button type="submit" data-theme="a">Submit</button></div>
</fieldset>
</div>
</form>
</div><!--/content-primary -->
<div class="content-secondary">
<div data-role="collapsible" data-collapsed="true" data-theme="b">
<h3>More in this section</h3>
<ul data-role="listview" data-theme="c" data-dividertheme="d">
<li data-role="list-divider">Form elements</li>
<li><a href="docs-forms.html">Form basics</a></li>
<li data-theme="a"><a href="forms-all.html">Form element gallery</a></li>
<li><a href="texts/index.html">Text inputs</a></li>
<li><a href="forms-search.html">Search inputs</a></li>
<li><a href="forms-slider.html">Slider</a></li>
<li><a href="forms-switch.html">Flip toggle switch</a></li>
<li><a href="radiobuttons/index.html">Radio buttons</a></li>
<li><a href="checkboxes/index.html">Checkboxes</a></li>
<li><a href="selects/index.html">Select menus</a></li>
<li><a href="forms-themes.html">Theming forms</a></li>
<li><a href="forms-all-native.html">Native form elements</a></li>
<li><a href="forms-sample.html">Submitting forms</a></li>
<li><a href="plugin-eventsmethods.html">Plugin methods</a></li>
</ul>
</div>
</div>
</div>
</div>
【讨论】：
$('#showHideButton').click(function(){ var j=0; if(i%2 !=0){ $('#passenger').find('tr.content').hide(); $(this).removeClass('ui-icon-d').addClass('ui-icon-u').trigger('create');; j=1; } else { $('#passenger').find('tr.content').show(); $(this).removeClass('ui-icon-u').addClass('ui-icon-d').trigger('create');; j=1 } i = i+j; }); 一切正常，但图标没有改变。
对我有用的是：
//set button active
$(this).parent().addClass('ui-btn-active');
//set button inactive
$(this).parent().removeClass('ui-btn-active');
将“ui-btn-active”类添加到父级会将当前按钮设置为活动并将数据主题更改为“b”。但是，这不适用于任何任意样本。因此，您可能仍需要前面提到的较长解决方案之一。
【讨论】：
是的，看来没有办法简单地更改主题色板。
我破解了一个通过正则表达式交换颜色的简单函数：
$.fn.changeColorSwatch = function(theme, type) {
if (!type) {
type = 'theme';
}
var currentTheme = this.attr('data-' + type);
if (!currentTheme) {
currentTheme = 'c';
}
this.attr('data-' + type, theme);
var regex = new RegExp('^ui-(.*)-' + currentTheme + '$');
var classes = $.extend({}, this[0].classList);
var i = classes.length;
while (i--) {
var match = classes[i].match(regex);
if (match) {
this.removeClass(match[0]);
this.addClass('ui-' + match[1] + '-' + theme);
}
}
};
我知道，它应该使用jqmData 而不是attr，但是 data-theme 属性没有正确更改。
【讨论】：
按钮也需要更改父元素主题。
将以下代码添加到 $.fn.changeColorSwatch 函数的末尾
if(this.attr('type') == 'button'){
this.parent().changeColorSwatch(theme, type);
}
【讨论】：
如果按钮定义为：
<button type="button" id="yourbutton">Hello</button>
那么这个效果最快：
$('#yourbutton').parent().find('.ui-btn-inner').css("background-color",yournewcolor);
【讨论】：
我用这个，效果很好！！ :D
Mikael Kindborg answer from Change data-theme in jQuery mobile
$.mobile.changeGlobalTheme = function(theme)
{
// These themes will be cleared, add more
// swatch letters as needed.
var themes = " a b c d e";
// Updates the theme for all elements that match the
// CSS selector with the specified theme class.
function setTheme(cssSelector, themeClass, theme)
{
$(cssSelector)
.removeClass(themes.split(" ").join(" " + themeClass + "-"))
.addClass(themeClass + "-" + theme)
.attr("data-theme", theme);
}
// Add more selectors/theme classes as needed.
setTheme(".ui-mobile-viewport", "ui-overlay", theme);
setTheme("[data-role='page']", "ui-page-theme", theme);
setTheme("[data-role='header']", "ui-bar", theme);
setTheme("[data-role='listview'] > li", "ui-bar", theme);
setTheme(".ui-btn", "ui-btn-up", theme);
setTheme(".ui-btn", "ui-btn-hover", theme);
};
【讨论】：