我需要将UIImage转换为字节数组.我正在使用Xamarin的Visual Studio插件来生成iOS应用程序.
下面的代码位获取图像,但我需要将其作为字节数组而不是UIImage发送到服务堆栈.
var signatureView = new SignaturePad.SignaturePadView(new RectangleF(10, 660, 300, 150));
signatureView.BackgroundColor = UIColor.White;
this.View.AddSubview(signatureView);
UIImage signatureImage = signatureView.GetImage();
O(n Log n)是多项式时间吗？如果是这样,你能解释一下原因吗？
我对数学证明感兴趣,但我也会感激任何强烈的直觉.
谢谢!
点击时我有扩展和收缩的div.Masonry库非常适合初始化页面.我遇到的问题是,随着Masonry和下面的指令的绝对定位,当div扩展时,它们与下面的div重叠.我需要让扩展div下面的div向下移动来处理扩展.
我的消息来源是:http: //masonry.desandro.com/
和
https://github.com/passy/angular-masonry/blob/master/src/angular-masonry.js
/*!
* angular-masonry <%= pkg.version %>
* Pascal Hartig, weluse GmbH, http://weluse.de/
* License: MIT
*/
(function () {
'use strict';
angular.module('wu.masonry', [])
.controller('MasonryCtrl', function controller($scope, $element, $timeout) {
var bricks = {};
var schedule = [];
var destroyed = false;
var self = this;
var timeout = null;
this.preserveOrder = false;
this.loadImages = true;
this.scheduleMasonryOnce = function scheduleMasonryOnce() {
var args = arguments;
var found = schedule.filter(function filterFn(item) {
return item[0] === …我想UITextField在我的iPhone应用程序中放置临时文本.Android具有提示属性以在文本字段中显示临时文本.我如何在iPhone开发中做同样的事情？
Despite the many, many tutorials I have searched through, the dropdown feature of my navigation bar is not functioning. Please help if you know some sort of difference with multidimensional dropdown menus in Bootstrap 3 that I am not seeing.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta name="generator" content=
"HTML Tidy for Linux/x86 (vers 25 March 2009), see www.w3.org" />
<title>Bootstrap 101 Template</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<!-- Bootstrap -->
<link href="css/bootstrap.min.css" rel="stylesheet" media="screen" …我正在允许多个图像上传,因此我需要销毁jcrop上的句柄,以便在图像窗格中显示新图像.我正在使用以下代码.
我只需要一种方法让句柄从当前的图像绑定中释放出来,并通过这段代码释放出来运行另一个图像.
$scope.cropImage = function(file) {
$scope.currentFile = file;
$("#target").attr("src", file.url);
$("#imageModal").modal("show");
var jcrop_api,
boundx,
boundy,
// Grab some information about the preview pane
$preview = $('#preview-pane'),
$pcnt = $('#preview-pane .preview-container'),
$pimg = $('#preview-pane .preview-container img'),
xsize = $pcnt.width(),
ysize = $pcnt.height();
$timeout(function () {
if(jcropHandle != null) {
jcropHandle.destroy();
}
jcropHandle = $('#target').Jcrop({
onChange: updatePreview,
onSelect: updatePreview,
aspectRatio: xsize / ysize
},function(){
// Use the API to get the real image size
var bounds = this.getBounds();
boundx = bounds[0]; …c# ×2
xamarin ×2
xamarin.ios ×2
angularjs ×1
big-o ×1
css3 ×1
directive ×1
html5 ×1
iphone ×1
javascript ×1
jcrop ×1
jquery ×1
masonry ×1
mono ×1
uitextfield ×1