我创建了一个上传图像的功能,但是我无法查看这些图像... 我的问题:单击按钮选择图像时,我选择了图像,并希望将其填满整个框。
图片1说明了问题(图片填充了整个边框)
问题2:当我选择一张以上的图像时,它们都在巨型框中排成一行……目标是要在大框中填充1张图像,而在小框中填充其余图像。 图片2说明了这个问题。
请有人帮助我!
JavaScript
var drop = $("input");
drop.on('dragenter', function (e) {
$(".drop").css({
"border": "4px dashed #09f",
"background": "rgba(0, 153, 255, .05)"
});
$(".cont").css({
"color": "#09f"
});
}).on('dragleave dragend mouseout drop', function (e) {
$(".drop").css({
"border": "3px dashed #DADFE3",
"background": "transparent"
});
$(".cont").css({
"color": "#8E99A5"
});
});
function handleFileSelect(evt) {
var files = evt.target.files; // FileList object
// Loop through the FileList and render image files as thumbnails.
for (var i = 0, f; f = files[i]; i++) {
// Only process image files.
if (!f.type.match('image.*')) {
continue;
}
var reader = new FileReader();
// Closure to capture the file information.
reader.onload = (function (theFile) {
return function (e) {
// Render thumbnail.
var span = document.createElement('span');
span.innerHTML = ['<img class="thumbs" src="', e.target.result,
'" title="', escape(theFile.name), '"/>'].join('');
document.getElementById('list').insertBefore(span, null);
};
})(f);
// Read in the image file as a data URL.
reader.readAsDataURL(f);
}
}
$('#files').change(handleFileSelect);
答案 0 :(得分:1)
请查看此Codepen方法。
希望您喜欢它,如果您对JS不了解,请告诉我是否要使其完整。我很快就做到了
您需要添加以下内容:
<div class="Upcard">
<div class="card-block" id="2">
</div>
</div>
CSS:
/* Images Module */
img {
/* bootstrap was overalaping this feature */
width: 100% !important;
}
.card-block> img {
height: 100% !important;
}
JS修改:
var enter = false;
reader.onload = (function (theFile) {
return function (e) {
// Render thumbnail.
if (!enter) {
var list = document.getElementById('list');
list.innerHTML = ['<img class="thumbs" src="', e.target.result,
'" title="', escape(theFile.name), '"/>'].join('');
enter = true;
} else {
// you need to loop here, Im sorry I do not remember the looping thing, but this is the approach...
var card = document.getElementById('2');
card.innerHTML = ['<img class="thumbs" src="', e.target.result,
'" title="', escape(theFile.name), '"/>'].join('');
}
};
})(f);
https://codepen.io/MarchWhitetower/pen/yLLMerV
今天晚些时候,我将结束此解决方案。