本文主要是介绍利用UIView做出霓虹灯的效果，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
效果如图
代码如下(只有实现部分)
@interface AppDelegate ()@end@implementation AppDelegate- (void)dealloc
{[_window release];[super dealloc];
}- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];// Override point for customization after application launch.self.window.backgroundColor = [UIColor whiteColor];[self.window makeKeyAndVisible];[_window release];// 定义view,颜色模块UIView *view1 = [[UIView alloc] initWithFrame:CGRectMake(20, 20, 340, 340)];view1.backgroundColor = [UIColor greenColor];[self.window addSubview:view1];[view1 release];view1.tag = 1;UIView *view2 = [[UIView alloc] initWithFrame:CGRectMake(40, 40, 300, 300)];view2.backgroundColor = [UIColor purpleColor];[self.window addSubview:view2];[view2 release];view2.tag = 2;UIView *view3 = [[UIView alloc] initWithFrame:CGRectMake(60, 60, 260, 260)];view3.backgroundColor = [UIColor magentaColor];[self.window addSubview:view3];[view3 release];view3.tag = 3;UIView *view4 = [[UIView alloc] initWithFrame:CGRectMake(80, 80, 220, 220)];view4.backgroundColor = [UIColor redColor];[self.window addSubview:view4];[view4 release];view4.tag = 4;UIView *view5 = [[UIView alloc] initWithFrame:CGRectMake(100, 100, 180, 180)];view5.backgroundColor = [UIColor orangeColor];[self.window addSubview:view5];[view5 release];view5.tag = 5;UIView *view6 = [[UIView alloc] initWithFrame:CGRectMake(120, 120, 140, 140)];view6.backgroundColor = [UIColor yellowColor];[self.window addSubview:view6];[view6 release];view6.tag = 6;UIView *view7 = [[UIView alloc] initWithFrame:CGRectMake(140, 140, 100, 100)];view7.backgroundColor = [UIColor cyanColor];[self.window addSubview:view7];[view7 release];view7.tag = 7;// 定义一个timer,实现色块变化NSTimer *timer = [NSTimer scheduledTimerWithTimeInterval:0.3 target:self selector:@selector(changeColor) userInfo:nil repeats:YES];return YES;
}- (void)changeColor
{// 定义一个color来接收7的颜色UIColor *color = [self.window viewWithTag:7].backgroundColor;// 换颜色for (int i = 6 ; i > 0; i--) {[self.window viewWithTag:i + 1].backgroundColor = [self.window viewWithTag:i ].backgroundColor;}// 最里面给最外面[self.window viewWithTag:1].backgroundColor = color;
}
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