如何设置UIImageView的动画和大小?我试过这样做,但对我来说没有用处:
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1.0];
imgView.frame = CGRectMake(0, 0, 320, 480);
[UIView commitAnimations];
答案 0 :(得分:5)
尝试使用块动画:
[UIView animateWithDuration:1.0f // This can be changed.
animations:^{
CGRect frame = imageView.frame;
frame.size.width += 100.0f; // This is just for the width, but you can change the origin and the height as well.
imageView.frame = frame;
}
completion:^(BOOL finished){
}];
希望有帮助!
答案 1 :(得分:0)
试试这段代码。这对我来说很好,
CGPoint newLogoutCenter = CGPointMake(160, 364);
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:1.0f];
twitterBarVIew.center = newLogoutCenter;
[UIView commitAnimations];
答案 2 :(得分:0)
如果我们假设您对imgView有正确的引用,那么似乎imgView的起始帧在动画之前和之后是相同的。
尝试将imgView.frame设置为:
imgView.frame = CGRectMake(100,100,100,100);
答案 3 :(得分:-1)
//设置UIImageView。框架确定图像的位置和大小。 UIImageView * i = [[UIImageView alloc] initWithFrame:[CGRectMake(50.0,50.0,50.0,50.0)]];
//将图像添加到UIImageView
i.images = [[NSArray alloc] initWithObjects:[UIImage imageNamed:@“1.png”],
[UIImage imageNamed:@“2.png”],nil];
//设置动画运行的时间 i.animationDuration = 1.0f;
//启动动画 [我startAnimating];
您可以通过更改图像的框架来调整图像大小
i.frame = CGRectMake(x,y,width,height);