相关疑难解决方法(0)

我想改变anchorPoint,但保持视图在同一个地方.我试过NSLog-ing分词self.layer.position和self.center他们都保持不变,无论更改anchorPoint的.然而我的观点却在变化

关于如何做到这一点的任何提示？

self.layer.anchorPoint = CGPointMake(0.5, 0.5);
NSLog(@"center point: %f %f", self.layer.position.x, self.layer.position.y);
self.layer.anchorPoint = CGPointMake(1, 1);
NSLog(@"center point: %f %f", self.layer.position.x, self.layer.position.y);

输出是:

2009-12-27 20:43:24.161 Type[11289:207] center point: 272.500000 242.500000
2009-12-27 20:43:24.162 Type[11289:207] center point: 272.500000 242.500000

如何在代码上从下到上移动视图:

colorView.hidden=NO;
colorView=[[UIView alloc]init];
colorView.frame=CGRectMake(0,480,320, 480);
colorView.bounds=CGRectMake(0,200,320, 280);
colorView.backgroundColor=[UIColor greenColor];
colorView.alpha=1.0f;
[webView addSubview:colorView];
[self.view addSubview:webView];
[self createTransparentView];

那我怎么能在这里添加动画呢？