【代碼筆記】澆花動畫，筆記澆花動畫

【代碼筆記】澆花動畫，筆記澆花動畫

一，。

二，工程圖。

三，代碼。

RootViewController.h

#import <UIKit/UIKit.h>@interface RootViewController : UIViewController{    NSTimer *timer;    int i;}@end

 

RootViewController.m

- (void)viewDidLoad{    [super viewDidLoad];    // Do any additional setup after loading the view.        //初始化背景圖    [self initBackGroundView];    }#pragma -mark -functions//背景圖-(void)initBackGroundView{    //人    UIImageView *loadPeopleView = [[UIImageView alloc] initWithFrame:CGRectMake(130, 100, 156, 172)];    loadPeopleView.tag = 101;    loadPeopleView.alpha = 1.0f;    loadPeopleView.backgroundColor=[UIColor clearColor];    [loadPeopleView setImage:[UIImage imageNamed:@"problem_load.png"]];        //花    UIImageView *loadFlowerView = [[UIImageView alloc] initWithFrame:CGRectMake(70, 200, 62, 75)];    loadFlowerView.tag = 102;    loadFlowerView.alpha = 1.0f;    [loadFlowerView setImage:[UIImage imageNamed:@"problem_load1.png"]];        [self.view addSubview:loadPeopleView];    [self.view addSubview:loadFlowerView];        timer = [NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:@selector(animation:) userInfo:nil repeats:YES];}//動畫- (void)animation:(NSTimer *)timer{    NSLog(@"-i-%i--",i);    UIImageView *imageView = (UIImageView *)[self.view viewWithTag:102];    i++;    if (i%3 == 0) {        [imageView setImage:[UIImage imageNamed:@"problem_load1.png"]];    }else if (i%3 == 1){        [imageView setImage:[UIImage imageNamed:@"problem_load2.png"]];    }else{        [imageView setImage:[UIImage imageNamed:@"problem_load3.png"]];    }}