ios中两个view动画切换

最新推荐文章于 2020-07-16 22:22:39 发布

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最新推荐文章于 2020-07-16 22:22:39 发布

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本文详细介绍了如何在iOS开发中使用ViewController进行视图切换，并通过转场动画实现平滑过渡。通过实例展示了从一个UIView到另一个UIView的动画效果，包括代码实现和关键逻辑解析。

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@interface ViewController ()
@property(nonatomic,retain)UIView *redview;
@property(nonatomic,retain)UIView *yellowview;
@end

@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];

    self.redview=[[UIView alloc] initWithFrame:CGRectMake(50, 50, 100, 100)];
    self.redview.backgroundColor=[UIColor redColor];
    [self.view addSubview:self.redview];
    [self.redview release];
    self.yellowview=[[UIView alloc] initWithFrame:CGRectMake(50, 50, 100, 100)];
  _yellowview.backgroundColor=[UIColor yellowColor];
    [self.view addSubview:_yellowview];
    //[_yellowview release];
}

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
    
    //转场动画，切换两个view  注意：如果要切换两个viewcontroller做转场要找到共同view；
    UIView *fromvalue=nil;
    UIView *tovalue=nil;
    if(_yellowview.superview){
        fromvalue=_yellowview;
        tovalue=_redview;
    }
    else{
        fromvalue=_redview;
        tovalue=_yellowview;
        
    }
    
  
    
    [UIView transitionFromView:fromvalue toView:tovalue duration:0.5 options:UIViewAnimationOptionTransitionFlipFromBottom completion:^(BOOL finished) {
       //这个api 原理   ：
//        1:[fromvalue.superview addSubview:tovalue];
//        2:[fromvalue removeFromSuperview];
        NSLog(@"fromvalue-->%@",fromvalue.superview);
        NSLog(@"tovalue-->%@",tovalue.superview);
    }];
}