晨鸟

保持と解除という方法は、理屈は分かるし簡単そうに見えます。しかし、実際にやってみると意外と難しいことがわかります。そこでCocoaでは少し楽をするための仕組みを導入しています。簡単に言えば、とりあえずなんでも入れておけるごみ袋を用意して、不要になった時点でごみ袋ごと捨てちゃうという方法です。このごみ袋にあたるのが、NSAutoreleasePoolというクラスです。Application Ki...

 - (ImageScrollView *)dequeueRecycledPage{ ImageScrollView *page = [recycledPages anyObject]; if (page) { [[page retain] autorelease]; [recycledPages removeObject:page]...

http://github.com/enormego/EGOTableViewPullRefresh

boundsThe bounds rectangle, which describes the view’s location and size in its own coordinate system.@property(nonatomic) CGRect boundsDiscussionOn the screen, the bounds rectangle represen...

https://developer.apple.com/library/ios/#documentation/WindowsViews/Conceptual/ViewPG_iPhoneOS/WindowsandViews/WindowsandViews.html#//apple_ref/doc/uid/TP40009503-CH2-SW1

If you want to add a UINavigationController into a TabView, and while the tab was taped,turn current view to display rootView of the UINavigationController.Keep following principles.1,Don't put ...

1.ios中的bounds是指相对于视图自己的坐标，所以默认view.bounds.origin = (0,0);2.ios中的frame是指相对于父视图的坐标3.当bounds改变的时候，会影响到frame比如下面的代码：CGRect frame = CGRectMake(0, 0, 200, 200);UILabel * label = [UILabel alloc] initWithFram...

The cocos2d Tips & Tricks is a problem / solution style book of “recipes” that can help the new and experienced cocos2d developer. It is a collection of the best practices, tips and tricks from the co...

WritabilityThese attributes specify whether or not a property has an associated set accessor. They are mutually exclusive.readwrite Indicates that the property should be treated as read...

ypedef enum {    UIViewAnimationCurveEaseInOut,    UIViewAnimationCurveEaseIn = 0,    UIViewAnimationCurveEaseOut,    UIViewAnimationCurveLinear} UIViewAnimationCurve;This result of th...

Declaring Constant String Objects A constant string object is declared by encapsulating the string in double quotes (") preceded by an @ sign. For example:@"This is a constant character strin...

Path to SuccessThe Core Data Programming Guide is primarily a reference volume. You should not simply try to read it straight through to understand Core Data.To learn about Core Data, you should...

粒子特效：particleillusion

タイトルの通り、iPhone にインストールされているフォントをフォントファミリー毎に書き出してみた。FontViewer と、Fonts をインストールして確認しました。American Typewriter * AmericanTypewriter * AmericanTypewriter-BoldAppleGothic * Ap...

1 Answeractiveoldestvotesup vote13down voteacceptedThe documentation says:Retaining an object creates a strong reference, and an object cannot be deallocated until all of i...