随笔分类 - IPhone
StoryBoard 弹出模式窗口的诡异问题
摘要：在StoryBoard中设置弹出Model ViewController时,将segue的presentation项选择为除了UIModalPresentationCurrentContext和Default(它代表目标视图控制器的presentation属性设置，如果目标属性为CurrentContext那么也会发生)之外，当内存紧缺时，父视图都不会viewDidUnload，而XCode3.2则不在呼这一设置，让我很是费解啊。如果想在多于二层的视层控制器保证最后一个视图可以半透显示在上层的话，你必须将最开始的那层视图控制器设置为CurrentContext，但是也导致了它会视图释放掉,然后
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What is the new iPad retina display?
摘要：being retina display does not depend only on the ppi. it also depends on the viewing distance.using the formula a = 2tan-1(h/2d) at 15 inches（2.54厘米） away qualifies for a retina display.the eyes cannot discern the pixels at the distance, which is the essence of Retina Display.Retina 屏幕究竟是如何定义的？为何分辨率
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来电归属地 黑名单‘s
摘要：陏着类似＂来电归属地＂这样的App越来越多,由于是采用企业开发账号，那么当账号过期之后它们的程序将不能再启动了，它们只有一年的使用时间. 对于这样的壳应用在app store上，对用户的利益是无法保障的，应该被禁止。 items assets kind software-package url http://65.49.26.76/ipa/BlackList.ipa kind full-size-image needs-shine url http://65.49.26.76/tubiao@2x.png kind display-image needs-shine u...
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Device tokens
摘要：Generated by APNs for each deviceDifferent from UDID entered into Program PortalDevice token value may changeApp is restored to a new deviceSame device is erased then app is reinstalled without restore uniquely identifies deviceCall registration API at each app launch and then send to server every t
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illustrate ARC with graphs
摘要：Summary ARC works by adding code at compile time to ensure that objects live as long as necessary, but no longer. Conceptually, it follows the same me
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Including QuickTime Movies In A Web Page
摘要：Including QuickTime Movies In A Web PageNow that you've finished compressing your movie, you can deploy it to the web.QuickTime movies can be included in a web page allowing visitors to your website to experience media seamlessly inside their browser. This is accomplished by adding some HTML to
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IEEE printf specification, Format Message OutputDebugString
摘要：C++ CString strFormat; strFormat.Format("keyName:%s\r\n ", entity->cKeyName); ::OutputDebugString(strFormat); // typedef CStringT<TCHAR, StrTraitATL<T
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Core 's Framework
摘要：Core Graphics FrameworkThe Core Graphics framework (CoreGraphics.framework) contains the interfaces for the Quartz 2D drawing API.Quartzis the same advanced, vector-based drawing engine that is used in Mac OS X. It provides support for path-based drawing, anti-aliased rendering, gradients, images, c
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The Mac Application Environment
摘要：The Mac Application EnvironmentMac OS X incorporates the latest technologies for creating powerful and fun-to-use apps. But the technologies by themselves are not enough to make every app great. What sets an app apart from its peers is how it helps the user achieve some tangible goal. After all, use
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Managing Nib Objects in iOS
摘要：Managing Nib Objects in iOSTop-Level ObjectsObjects in the nib file are created with a retain count of 1 and then autoreleased. As it rebuilds the object hierarchy, UIKit reestablishes connections between the objects usingsetValue:forKey:, which uses the available setter method or retains the object
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Specifying High-Resolution Images in iOS
摘要：Specifying High-Resolution Images in iOSAny iPhone application built for iOS 4.0 and later should include high-resolution versions of its image resources. When the application is run on a device that has a high-resolution screen, high-resolution images provide extra detail and look better because th
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XCode源代码管理与在Windows上架设Git服务器
摘要：Git是个好东西，可以在本地随意修改文件，可以随时回顾历史记录。它有它自已的原则，与source safe的概念大不相同。你首先要先提交（commit）本地的修改文件，才能进行［pull］或［push］操作远端Git数据库,如果期间团队中有别人有过更新（push），你需要先（pull）同步一下远程数据库，并且合并冲突的部分.xcode帮且文档里有详细的描述对于这些操作：file:///Users/yangiori/Library/Developer/Shared/Documentation/DocSets/com.apple.ADC_Reference_Library.DeveloperToo
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Mac OSX 10.7.3 bugs.
摘要：1. 我目前设置了双显示在mac系统上，另外一个显示器是原来pc的，时常切换，但在切换成pc时，mac系统内的鼠标滚动出现不平滑状态。。。。 目前系统更新到了mountain lion状况没有改变2.xocde 4.3 bugs, 当xcode窗口跨越两个显示器，这时点击xcode file菜单中的源代码控制器进行代码提交之后，xcode窗口位置会向最左面屏幕偏出许多。。。
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UINavigatorController 里面的下的模式视图不能半透明下面的视图。
摘要：RootViewController.h 作为UINavigatorController根视图，模式弹出新窗口时，新窗口透明的部分无效 （设置UINavigatorController的modalPresentationStyle = UIModalPresentationCurrentContext即可）。1 untitled *vc = [[untitled alloc] initWithNibName:@"untitled" bundle:nil];2 self.modalPresentationStyle = UIModalPresentationCurrentCo
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dispatch_async 线程分发注意事项.
摘要：1 // NOTE: GameCenter does not guarantee that callback blocks will be execute on the main thread. 2 // As such, your application needs to be very care
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XCode调试多线程遭遇海森伯效应一例
摘要：1 dispatch_async(dispatch_get_global_queue(0, 0), ^{ 2 3 dispatch_async(dispatch_get_main_queue(), ^{ 4 ... 5 [self myMethod]; 6 7 }); 8 9 -(void)myMe
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通用版程序在the new iPad与Xcode4.3中的不兼容。
摘要：开发的一款通用版程序由于the new ipad的出现，运行出现了不兼容现像。原有程序启动图片default.png,default@2x.png,default~ipad.png,出现启动画面偏移问题，解决方式添加default@2x~ipad.png.用xcode4.3版打开项目，调度运行项目，程序布局面目全非，用原来的xcode3.2版则没有问题。
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Viewing iPhone-Optimized PNGs
摘要：Technical Q&A QA1681Viewing iPhone-Optimized PNGsQ: When I build my iPhone OS application, Xcode optimizes the PNG files within my application's bundle, meaning that Preview can't display them. How can I view these optimized files?A:When I build my iPhone OS application, Xcode optimizes
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越狱与非越狱设备写权限区别
摘要：越狱设备具有程序所在文件夹的读写权限，而非越狱设备只能写document目录，对于程序文件夹的写也是白写，不会记忆的。
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