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  • 【代码笔记】iOS-等待动画

    一,效果图。

    二,工程图。

    三,代码。

    RootViewController.h

    复制代码
    #import <UIKit/UIKit.h>
    
    @interface RootViewController : UIViewController
    {
        NSTimer *timerWait;
        int j;
    }
    @end
    复制代码

     

    RootViewController.m

    复制代码
    #import "RootViewController.h"
    
    @interface RootViewController ()
    
    @end
    
    @implementation RootViewController
    
    - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
    {
        self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
        if (self) {
            // Custom initialization
        }
        return self;
    }
    
    - (void)viewDidLoad
    {
        [super viewDidLoad];
        // Do any additional setup after loading the view.
        
        //初始化背景图
        [self initBackGroundView];
        
      
    }
    #pragma -mark -functions
    //初始化背景图
    -(void)initBackGroundView
    {
        UIImageView *waitView = [[UIImageView alloc] initWithFrame:CGRectMake(50, 200, 130, 160)];
        waitView.tag = 103;
        [waitView setImage:[UIImage imageNamed:@"wait1.png"]];
        [self.view addSubview:waitView];
        
        timerWait = [NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:@selector(wait) userInfo:nil repeats:YES];
    }
    //等待函数
    - (void)wait
    {
        UIImageView *imageView = (UIImageView *)[self.view viewWithTag:103];
        if (j%4 == 0) {
            [imageView setImage:[UIImage imageNamed:@"wait1.png"]];
        }else if(j%11 == 0){
            [imageView setImage:[UIImage imageNamed:@"wait4.png"]];
        }else if(j%17 == 0){
            imageView.frame = CGRectMake(-10, 215, 170, 145);
            [imageView setImage:[UIImage imageNamed:@"wait3.png"]];
        }else{
            [imageView setImage:[UIImage imageNamed:@"wait2.png"]];
        }
        j++;
    }
    
    - (void)didReceiveMemoryWarning
    {
        [super didReceiveMemoryWarning];
        // Dispose of any resources that can be recreated.
    }
    复制代码

     

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  • 原文地址:https://www.cnblogs.com/yang-guang-girl/p/5097826.html
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