_imgView.image = [UIImage imageNamed:@"123"];
_imgView.alpha = 0.0;
- (IBAction)danru:(id)sender {
[UIView beginAnimations:nil context:nil];//标记动画块开始
[UIView setAnimationCurve:UIViewAnimationCurveEaseIn];//定义动画加速和减速方式
[UIView setAnimationDuration:0.5];//动画时长
[UIView setAnimationDelegate:self];
_imgView.alpha = 1.0;
//动画结束后回调方法
[UIView commitAnimations];//标志动滑块结束
}
- (IBAction)suofang:(id)sender {
//缩放动画
CABasicAnimation* caBaseBounds = [CABasicAnimation animation];
caBaseBounds.duration = 2;
caBaseBounds.keyPath = @"bounds";
caBaseBounds.removedOnCompletion = NO;
caBaseBounds.fillMode = kCAFillModeForwards;
caBaseBounds.fromValue = [NSValue valueWithCGRect:_imgView.layer.frame];/*动画完了也没变啊～*/
caBaseBounds.toValue = [NSValue valueWithCGRect:CGRectMake(_imgView.layer.frame.origin.x,
_imgView.layer.frame.origin.y,
_imgView.layer.frame.size.width / 2,
_imgView.layer.frame.size.height * 2)];
[_imgView.layer addAnimation:caBaseBounds forKey:nil];
}
- (IBAction)xuanzhuan:(id)sender {
//旋转动画
CABasicAnimation* caBaseTransform = [CABasicAnimation animation];
caBaseTransform.duration = 2;
caBaseTransform.keyPath = @"transform";
caBaseTransform.removedOnCompletion = NO;
caBaseTransform.fillMode = kCAFillModeForwards;
caBaseTransform.fromValue = [NSValue valueWithCATransform3D:CATransform3DMakeRotation(0, 0, 0, 1)];
caBaseTransform.toValue = [NSValue valueWithCATransform3D:CATransform3DMakeRotation(- M_PI / 2, 0, 0, 1)];
[_imgView.layer addAnimation:caBaseTransform forKey:nil];
}
- (IBAction)pingyi:(id)sender {
//平移动画
CABasicAnimation* caBasePosition = [CABasicAnimation animation];
caBasePosition.duration = 2;
caBasePosition.keyPath = @"position";
caBasePosition.fromValue = [NSValue valueWithCGPoint:CGPointMake(0, 0)];
caBasePosition.toValue = [NSValue valueWithCGPoint:CGPointMake(0, 300)];
caBasePosition.removedOnCompletion = NO;
caBasePosition.fillMode = kCAFillModeForwards;
[_imgView.layer addAnimation:caBasePosition forKey:nil];
}
