IOS开发之UIImageView帧动画

最新推荐文章于 2025-08-13 23:44:03 发布

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最新推荐文章于 2025-08-13 23:44:03 发布

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文章标签：移动开发 python

原文链接：https://my.oschina.net/luhoney/blog/653874

本文介绍了一个简单的iOS应用程序中如何使用UIImageView来实现帧动画效果。通过创建UIImageView对象，并设置动画图片数组、播放时间及循环次数等参数，实现了帧动画的显示。此外，还展示了如何将UIImageView对象添加到UIWindow上。

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#import "AppDelegate.h"

@interface AppDelegate ()

@end

@implementation AppDelegate

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

_window = [[UIWindow alloc]initWithFrame:[UIScreen mainScreen].bounds];

[_window setBackgroundColor:[UIColor whiteColor]];

//1.创建UIImageView对象

UIImageView *imageView =[[UIImageView alloc]

initWithFrame:CGRectMake(50, 50, 80, 80)];

//2.显示图片(显示静态图片)帧动画结束后会显示静态图片

imageView .image = [UIImage imageNamed:@"DOVE 1"];

//3.添加到界面上

[_window addSubview:imageView];

//==============显示帧动画==================

//创建图片数组

NSMutableArray *images = [[NSMutableArray alloc]init];

for (int i=1; i<19; i++) {

//创建图片

UIImage *image = [UIImage imageNamed:[NSString

stringWithFormat:@"DOVE %d",i]];

//将图片添加到图片数组

[images addObject:image];

}

//4.设置动画图片数组(数组元素必须是UIImage对象)

[imageView setAnimationImages:images];

//5.设置播放完一组动画所需要的时间(单位:秒)

[imageView setAnimationDuration:1];

//6.设置循环次数;(默认是1)播放次数设置为0，相当于无限循环

[imageView setAnimationRepeatCount:10];

//7.开始播放动画

[imageView startAnimating];

//8.停止播放

// [imageView stopAnimating];

[_window makeKeyAndVisible];

return YES;

}

- (void)applicationWillResignActive:(UIApplication *)application {

// Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.

// Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.

}

- (void)applicationDidEnterBackground:(UIApplication *)application {

// Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.

// If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.

}

- (void)applicationWillEnterForeground:(UIApplication *)application {

// Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.

}

- (void)applicationDidBecomeActive:(UIApplication *)application {

// Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.

}

- (void)applicationWillTerminate:(UIApplication *)application {

// Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.

}

@end

转载于:https://my.oschina.net/luhoney/blog/653874