iOS 列印出視圖中所有的子視圖的名稱,ios視圖使用遞迴:- (void)listSubviewsOfView:(UIView *)view { // Get the subviews of the view NSArray *subviews = [view subviews]; // Return if there are no subviews if ([subviews count] == 0) return; // COUNT CHECK LINE
Cocos2d-x3.3beta0建立動畫的3種方式,cocos2d動畫1、單獨載入精靈對象渲染效率低,浪費資源,不推薦用該方法。代碼如下:註:代碼只需貼到HelloWorldScene.cpp中即可。//First,單獨渲染每一個精靈幀 auto sprite = Sprite::create("grossini_dance_01.png");
iOS ... NS_REQUIRES_NIL_TERMINATION,iosnil看到官方的一個例子不錯,這裡留記。#import <Cocoa/Cocoa.h>@interface NSMutableArray (variadicMethodExample)- (void) appendObjects:(id) firstObject, ...; // This method takes a nil-terminated list of
Android Api 檢查參數狀態Api轉載請註明出處:http://blog.csdn.net/droyon/article/details/39938677在進行Android應用程式開發中,android提供了一個很好的工具類,來進行參數的檢查。Preconditions.checkNotNull(horiz, "missing horiz");這個類叫做Preconditions,在framework/base/core/java/com/android.internal/util中。
Android setTag()與getTag(),與set多個setTag()首先我們要知道setTag方法是幹什麼的,SDK解釋為TagsUnlike IDs, tags are not used to identify views. Tags are essentially an extra piece of information that can be associated with a view. They are most often used as a convenience