初学ios开发,很多概念还不清楚,所以只有边学边做例子。又怕学了后面忘了前面,因此用自己的博客来纪录自己的学习历程,也是对自己学习不要懈怠做个监督。
刚学ios做动画效果。因为ios封装得很好,实现ios的漂亮动画效果也很简单,却因为我自己的粗心落了一个字母 导致纠结了一天,这个教训必须记住,同时也懂得了调试技能在编程里地位也是非常重要的存在。
实现ios动画有两种方法:一种UIView层面的,一种是使用CATransition.
- - (void)viewDidLoad
- {
- [super viewDidLoad];
- // Do any additional setup after loading the view.
- UIView *redView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
- redView.backgroundColor = [UIColor redColor];
- [self.view addSubview:redView];
- UIView *yellowView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
- yellowView.backgroundColor = [UIColor yellowColor];
- [self.view addSubview:yellowView];
- UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
- [button setTitle:@"改变1" forState:UIControlStateNormal];
- button.frame = CGRectMake(10, 10, 300, 40);
- [button addTarget:self action:@selector(changeUIView1) forControlEvents:UIControlEventTouchUpInside];
- [self.view addSubview:button];
- UIButton *button2 = [UIButton buttonWithType:UIButtonTypeRoundedRect];
- [button2 setTitle:@"改变2" forState:UIControlStateNormal];
- button2.frame = CGRectMake(10, 120, 300, 40);
- [button2 addTarget:self action:@selector(changeUIView2) forControlEvents:UIControlEventTouchUpInside];
- [self.view addSubview:button2];
- }
- -(void) changeUIView1{
- [UIView beginAnimations:@"animation" context:nil];
- [UIView setAnimationDuration:1.0f];
- [UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
- [UIView setAnimationTransition:UIViewAnimationTransitionCurlDown forView:self.view cache:YES];
- [self.view exchangeSubviewAtIndex:1 withSubviewAtIndex:0 ];
- [UIView commitAnimations];
- }
- -(void) changeUIView2{
- CATransition *transition = [CATransition animation];
- transition.delegate = self;
- transition.duration = 2.0f;
- transition.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseIn];
- transition.type = kCATransitionPush;
- transition.type = @"pageCurl" ;//另一种设置动画效果方法
- transition.subtype = kCATransitionFromBottom;
- [self.view exchangeSubviewAtIndex:1 withSubviewAtIndex:0];
- [self.view.layer addAnimation:transition forKey:@"animation"];
- }
调用CATransition需要在frameworks中添加QuartzCore.framework,在.h文件中加入 #import <QuartzCore/QuartzCore.h>
setType:有四种类型:
kCATransitionFade //交叉淡化过渡
kCATransitionMoveIn //移动覆盖原图
kCATransitionPush //新视图将旧视图推出去
kCATransitionReveal //底部显出来
另一种设置方法
pageCurl //向上翻一页
pageUnCurl //向下翻一页
rippleEffect //滴水效果
suckEffect //收缩效果,如一块布被抽走
cube //立方体效果
oglFlip //上下翻转效果
setSubtype:有四种类型:
kCATransitionFromRight;
kCATransitionFromLeft(默认值)
kCATransitionFromTop;
kCATransitionFromBottom