这是我试图更改 imageView 大小的代码。如果您能指出任何错误,我将非常感激..
UIImageView *imageViewForAnimation = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"ravan.jpg"]];
imageViewForAnimation.alpha = 1.0f;
CGSize size1=CGSizeMake(60,60);
CGSize size2=CGSizeMake(40,40);
CGSize size3=CGSizeMake(20,20);
CAKeyframeAnimation *customFrameAnimation = [CAKeyframeAnimation animationWithKeyPath:@"frame"];
NSArray *sizeValues = [NSArray arrayWithObjects:[NSValue valueWithCGSize:size1], [NSValue valueWithCGSize:size2], [NSValue valueWithCGSize:size3], nil];
[customFrameAnimation setValues:sizeValues];
customFrameAnimation.duration=10.0;
NSArray *times = [NSArray arrayWithObjects:[NSNumber numberWithFloat:0.0f], [NSNumber numberWithFloat:0.5f], [NSNumber numberWithFloat:1.0f], nil];
[customFrameAnimation setKeyTimes:times];
customFrameAnimation.fillMode = kCAFillModeForwards;
customFrameAnimation.removedOnCompletion = NO;
[imageViewForAnimation.layer addAnimation:customFrameAnimation forKey:@"customFrameAnimation"];
[self.view addSubview:imageViewForAnimation];