在我的应用程序中,我想UIWindow在主UIWindow 上创建一个新的,我编写如下,但它不起作用.首先,我创建一个UIWindow作为主窗口,然后使其键和可见,然后创建一个新的UIWindow叠加,但没有任何反应.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.window.backgroundColor = [UIColor redColor];
ViewController *vc = [[ViewController alloc]initWithNibName:@"ViewController" bundle:nil];
self.window.rootViewController = vc;
[self.window makeKeyAndVisible];
UIWindow *window1 = [[UIWindow alloc] initWithFrame:CGRectMake(0, 0, 320, 320)];
window1.backgroundColor = [UIColor redColor];
window1.windowLevel = UIWindowLevelAlert;
[window1 makeKeyAndVisible];
return YES;
}
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Html代码
<nav id="navigation">
<a href="#" tabindex="1" class="active_nav">nav1</a>
<a href="#" tabindex="2">nav2</a>
<a href="#"tabindex="3">nav3</a>
</nav>
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当我使用javascript
alert($("#navigation >a")[0]);
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结果是标签ahref属性我不知道为什么.
In iOS apps, there is a default gesture that swipe from the left edge to right the app navigationController will pop view controller.
But is there a way to disable it for specific view?
我在一个项目中使用Xcode 5.而项目需要本地化.Xcode帮助我生成Localizable.strings它看起来像
/* Class = "IBUIButton"; normalTitle = "2013-10-1"; ObjectID = "p5u-h7-pfJ"; */
"p5u-h7-pfJ.normalTitle" = "2013-10-1";
/* Class = "IBUILabel"; text = "Label"; ObjectID = "pBS-eN-YUz"; */
"pBS-eN-YUz.text" = "Label";
/* Class = "IBUITextField"; placeholder = "Input Name Here"; ObjectID = "pE4-WG-fPp"; */
"pE4-WG-fPp.placeholder" = "Input Name Here";
/* Class = "IBUILabel"; text = "Detail"; ObjectID = "qSu-Mo-baT"; */
"qSu-Mo-baT.text" = "Detail";
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但如果我想在故事板中添加新UI,我该怎么办呢.如何添加新的键值?
这是phonegap中的一个网络应用程序,我使用了320 x 480图像来绘制,但它很模糊。
html
<canvas id="canvas" height=480 width=320>
Your browser does not support the HTML5 canvas tag.</canvas>
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javascript
var canvas = document.getElementById('canvas');
var ctx = canvas.getContext('2d');
ctx.drawImage(images[index],0,0,320,480);
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如何在视网膜显示屏上清晰地画画?
我使用 jQuery AJAX 在登录页面中获取了一串 JSON。我如何在其他页面中使用它。是否有某种方法可以存储 JSON 并在我的网站中的任何位置访问它。附:我没有使用任何其他服务器脚本,它只是一个 html 网站。JSON 字符串约为 5K 字节。
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