我有一个类似于示例http://jsfiddle.net/jonathansampson/K3A9r/的应用程序， 但是如果我使用这个概念在 iPad/android 上上传文件，它就不起作用。无论使用 onload() 还是使用 onloadend()，图像都不会加载到浏览器中
html:
<input type="file" name="myFileSelect" />
js：
// Bind to the change event of our file input
$("input[name='myFileSelect']").on("change", function(){
// Get a reference to the fileList
var files = !!this.files ? this.files : [];
// If no files were selected, or no FileReader support, return
if ( !files.length || !window.FileReader ) return;
// Only proceed if the selected file is an image
if ( /^image/.test( files[0].type ) ) {
// Create a new instance of the FileReader
var reader = new FileReader();
// Read the local file as a DataURL
reader.readAsDataURL( files[0] );
// When loaded, set image data as background of page
reader.onloadend = function(){
$("html").css("background-image", "url(" + this.result + ")");
}
}
});