这是我第三次尝试用查询返回的数据对nivoSlider设置的填充提出不同的问题。感谢所有试图回答我前面问题的人。在这里,我试图提供一个更好的解释,说明我正在努力做什么。
这就是我正在努力做的。我在表中有两个记录,它们包含图像名称、效果、切片、boxCols、boxRows、animSpeed和pausetime。
运行脚本,该脚本返回数据,并使用nivoslider为每个记录显示图像。每张幻灯片有不同的显示要求,例如:
幻灯片No1:
效果-SliceUp
切片-30
框列-16
框列-8
动画速度-8000
暂停时间-12000
幻灯片No2:
效果-框形图
切片-10
框形图-12
框形图-8
动画速度-8000
暂停时间-6000
nivoSlider脚本如下所示:
$(window).load(function() {
$('#slider').nivoSlider({
effect: '<?php echo $row['Effect'];?>',
slices: '<?php echo $rowe['Slices'];?>',
boxCols:'<?php echo $row['Cols'];?>',
boxRows: '<?php echo $row['Rows'];?>',
animSpeed:'<?php echo $row['AnimSpeed'];?>',
pauseTime: '<?php echo $row['TimeLapse'];?>',
startSlide: 0,
directionNav: false,
controlNav: false,
controlNavThumbs: false,
pauseOnHover: false,
manualAdvance: false,
randomStart: false,
beforeChange: function(){},
afterChange: function(){},
slideshowEnd: function(){},
lastSlide: function(){},
afterLoad: function(){}
});
});
我有一个PHP循环来显示每个图像一个接着一个。
<div class="slider-wrapper theme-default">
<div id="slider" class="nivoSlider">
<?php while($row_Signage = mysqli_fetch_assoc($result)) {?>
<script type="text/javascript">
$(window).load(function() {
$('#slider').nivoSlider({
effect: '<?php echo $row['Effect'];?>',
slices: '<?php echo $row['Slices'];?>',
boxCols:'<?php echo $row['Cols'];?>',
boxRows: '<?php echo $row['Rows'];?>',
animSpeed:'<?php echo $row['AnimSpeed'];?>',
pauseTime: '<?php echo $row['TimeLapse'];?>',
startSlide: 0,
directionNav: false,
controlNav: false,
controlNavThumbs: false,
pauseOnHover: false,
manualAdvance: false,
randomStart: false,
beforeChange: function(){},
afterChange: function(){},
slideshowEnd: function(){},
lastSlide: function(){},
afterLoad: function(){}
});
});
</script>
<?php
echo '<img src="/'.$ImagePath .''.$row['PromotionImage'].'"/> ';
?>
<?php } ?>
</div>
</div>
对于while循环中的nivoSlider脚本,我希望代码获得第一条记录,并使用nivoSlider脚本中的变量显示它。它确实显示了图像,但也显示了一个空白页,错误为:example.com/apps/signage/exbhx/ds2/undefined。有人建议我需要将一部分代码移到while循环之外,因此我尝试了以下操作:
<?php while($row = mysqli_fetch_assoc($result)) {
$effect = $row['Effect'];
$slices = $row['Slices'];
$boxCols = $row['Cols'];
$boxRows = $row['Rows'];
$animSpeed = $row['AnimSpeed'];
$pauseTime = $row['TimeLapse'];
?>
<script type="text/javascript">
$(window).load(function() {
$('#slider').nivoSlider({
effect: '<?php echo $effect;?>',
slices: '<?php echo $slices;?>',
boxCols:'<?php echo $boxCols;?>',
boxRows: '<?php echo $boxRows;?>',
animSpeed:'<?php echo $animSpeed ;?>',
pauseTime: '<?php echo $pauseTime;?>',
startSlide: 0,
directionNav: false,
controlNav: false,
controlNavThumbs: false,
pauseOnHover: false,
manualAdvance: false,
randomStart: false,
beforeChange: function(){},
afterChange: function(){},
slideshowEnd: function(){},
lastSlide: function(){},
afterLoad: function(){}
});
});
</script>
<?php
echo '<img src="/'.$ImagePath .''.$row['PromotionImage'].'"/> ';
?>
<?php } ?>
上述结果如下:
<script type="text/javascript">
$(window).load(function() {
$('#slider').nivoSlider({
effect: 'sliceUp',
slices: '30',
boxCols:'16',
boxRows: '8',
animSpeed:'8000',
pauseTime: '12000',
startSlide: 0,
directionNav: false,
controlNav: false,
controlNavThumbs: false,
pauseOnHover: false,
manualAdvance: false,
randomStart: false,
beforeChange: function(){},
afterChange: function(){},
slideshowEnd: function(){},
lastSlide: function(){},
afterLoad: function(){}
});
});
</script>
<img src="/apps/signage/promotion_images/EXBHX/boards/DS2/monday_portrait.png"/>
<script type="text/javascript">
$(window).load(function() {
$('#slider').nivoSlider({
effect: 'boxRain',
slices: '10',
boxCols:'12',
boxRows: '8',
animSpeed:'8000',
pauseTime: '6000',
startSlide: 0,
directionNav: false,
controlNav: false,
controlNavThumbs: false,
pauseOnHover: false,
manualAdvance: false,
randomStart: false,
beforeChange: function(){},
afterChange: function(){},
slideshowEnd: function(){},
lastSlide: function(){},
afterLoad: function(){}
});
});
</script>
<img src="/apps/signage/promotion_images/EXBHX/boards/DS2/tuesday_portrait.png"/>
这不起作用,它显示相同的内容:error:example.com/apps/signage/exbhx/ds2/undefined这不会停止脚本的运行,但它会在显示循环开始时显示一个空白页。
我可以用不同的方式编写更多的代码,但没有任何工作。
我输得一塌糊涂,谁能帮帮我?
非常感谢您的时间。
库中的代码
Line 90 to line 111
//Create caption
slider.append($('<div class="nivo-caption"></div>'));
// Process caption function
var processCaption = function(settings){
var nivoCaption = $('.nivo-caption', slider);
if(vars.currentImage.attr('title') != '' && vars.currentImage.attr('title') != undefined){
var title = vars.currentImage.attr('title');
if(title.substr(0,1) == '#') title = $(title).html();
if(nivoCaption.css('display') == 'block'){
setTimeout(function(){
nivoCaption.html(title);
}, settings.animSpeed);
} else {
nivoCaption.html(title);
nivoCaption.stop().fadeIn(settings.animSpeed);
}
} else {
nivoCaption.stop().fadeOut(settings.animSpeed);
}
}
Line 210 to line 240
// Add slices for slice animations
var createSlices = function(slider, settings, vars) {
if($(vars.currentImage).parent().is('a')) $(vars.currentImage).parent().css('display','block');
$('img[src="'+ vars.currentImage.attr('src') +'"]', slider).not('.nivo-main-image,.nivo-control img').width(slider.width()).css('visibility', 'hidden').show();
var sliceHeight = ($('img[src="'+ vars.currentImage.attr('src') +'"]', slider).not('.nivo-main-image,.nivo-control img').parent().is('a')) ? $('img[src="'+ vars.currentImage.attr('src') +'"]', slider).not('.nivo-main-image,.nivo-control img').parent().height() : $('img[src="'+ vars.currentImage.attr('src') +'"]', slider).not('.nivo-main-image,.nivo-control img').height();
for(var i = 0; i < settings.slices; i++){
var sliceWidth = Math.round(slider.width()/settings.slices);
if(i === settings.slices-1){
slider.append(
$('<div class="nivo-slice" name="'+i+'"><img src="'+ vars.currentImage.attr('src') +'" style="position:absolute; width:'+ slider.width() +'px; height:auto; display:block !important; top:0; left:-'+ ((sliceWidth + (i * sliceWidth)) - sliceWidth) +'px;" /></div>').css({
left:(sliceWidth*i)+'px',
width:(slider.width()-(sliceWidth*i))+'px',
height:sliceHeight+'px',
opacity:'0',
overflow:'hidden'
})
);
} else {
slider.append(
$('<div class="nivo-slice" name="'+i+'"><img src="'+ vars.currentImage.attr('src') +'" style="position:absolute; width:'+ slider.width() +'px; height:auto; display:block !important; top:0; left:-'+ ((sliceWidth + (i * sliceWidth)) - sliceWidth) +'px;" /></div>').css({
left:(sliceWidth*i)+'px',
width:sliceWidth+'px',
height:sliceHeight+'px',
opacity:'0',
overflow:'hidden'
})
);
}
}
第256行至第286行
for(var rows = 0; rows < settings.boxRows; rows++){
for(var cols = 0; cols < settings.boxCols; cols++){
if(cols === settings.boxCols-1){
slider.append(
$('<div class="nivo-box" name="'+ cols +'" rel="'+ rows +'"><img src="'+ vars.currentImage.attr('src') +'" style="position:absolute; width:'+ slider.width() +'px; height:auto; display:block; top:-'+ (boxHeight*rows) +'px; left:-'+ (boxWidth*cols) +'px;" /></div>').css({
opacity:0,
left:(boxWidth*cols)+'px',
top:(boxHeight*rows)+'px',
width:(slider.width()-(boxWidth*cols))+'px'
})
);
$('.nivo-box[name="'+ cols +'"]', slider).height($('.nivo-box[name="'+ cols +'"] img', slider).height()+'px');
} else {
slider.append(
$('<div class="nivo-box" name="'+ cols +'" rel="'+ rows +'"><img src="'+ vars.currentImage.attr('src') +'" style="position:absolute; width:'+ slider.width() +'px; height:auto; display:block; top:-'+ (boxHeight*rows) +'px; left:-'+ (boxWidth*cols) +'px;" /></div>').css({
opacity:0,
left:(boxWidth*cols)+'px',
top:(boxHeight*rows)+'px',
width:boxWidth+'px'
})
);
$('.nivo-box[name="'+ cols +'"]', slider).height($('.nivo-box[name="'+ cols +'"] img', slider).height()+'px');
}
}
}
sliderImg.stop().animate({
height: $(vars.currentImage).height()
}, settings.animSpeed);
};
Line 356 to line 364
// Run random effect from specified set (eg: effect:'fold,fade')
if(settings.effect.indexOf(',') !== -1){
anims = settings.effect.split(',');
currentEffect = anims[Math.floor(Math.random()*(anims.length))];
if(currentEffect === undefined) { currentEffect = 'fade'; }
}
我以前没有用过nivoslider。还有,我找不到任何详细的文档为这个插件。所以,我决定看看它的代码。
据我所知,这个插件对滑块内的所有图像都使用了通用的config(option)对象。
我找不到一种方法来改变默认情况下每个图像的属性。
所以,我决定编辑库代码。
我的目标很简单。我不是从选项中获取滑块属性,而是希望在img
标记中传递这些属性,如data-nseffect='box rain'
。然后在库中,我想像.data('nseffect')
那样访问它。
这里是我在图书馆所做的改变。
行号:361
var currentEffect = vars.currentImage.data('nseffect') || settings.effect;
console.log('effect', currentEffect);
行号:223
settings.slices = vars.currentImage.data('nsslices') || settings.slices;
console.log('slices', settings.slices);
行号:263
settings.boxCols = vars.currentImage.data('nsboxcols') || settings.boxCols;
console.log('boxCols', settings.boxCols);
settings.boxRows = vars.currentImage.data('nsboxrows') || settings.boxRows;
console.log('boxRows', settings.boxRows);
行号:99
settings.animSpeed = vars.currentImage.data('nsanimspeed') || settings.animSpeed;
console.log('animSpeed', settings.animSpeed);
不幸的是,它只从第一个img
属性获取pausetime
并创建一个setinterval
,因此,它应该是滑块内所有图像通用的。
这里是HTML部分。
<div id="slider" class="nivoSlider">
<img src="images/toystory.jpg"
data-thumb="images/toystory.jpg"
alt = ""
data-nseffect = "boxRain"
data-nsslices = "30"
data-nsboxcols = "10"
data-nsboxrows = "5"
data-nsanimspeed = "5000"
data-nspausetime = "3000"
/>
<a href="http://dev7studios.com">
<img src="images/up.jpg"
title="This is an example of a caption"
data-nseffect = "sliceUp"
data-nsslices = "35"
data-nsboxcols = "15"
data-nsboxrows = "6"
data-nsanimspeed = "3000"
data-nspausetime = "3000"
/>
</a>
...
...
</div>
最后在PHP中
<div id="slider" class="nivoSlider">
<?php while($row = mysqli_fetch_assoc($result)) {
$effect = $row['Effect'];
$slices = $row['Slices'];
$boxCols = $row['Cols'];
$boxRows = $row['Rows'];
$animSpeed = $row['AnimSpeed'];
$pauseTime = $row['TimeLapse'];
echo '<img src="/'.$ImagePath .''.$row['PromotionImage'].'"
data-nseffect = "'.$effect.'"
data-nsslices = "'.$slices.'"
data-nsboxcols = "'.$boxCols.'"
data-nsboxrows = "'.$boxRows.'"
data-nsanimspeed = "'.$animSpeed.'"
data-nspausetime = "'.$pauseTime.'"
/>';
}?>
</div>
...
<script type="text/javascript">
$(window).load(function() {
$('#slider').nivoSlider();
});
</script>
注意:我从他们的官方GitHub这里取了这个库。
对我有用。希望对你有帮助。:)