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.center];
//以下必须导入QuartzCore包
// 关键帧动画（位置）
CAKeyframeAnimation * posAnim = [CAKeyframeAnimation animationWithKeyPath:@"position"];
posAnim.path = movePath.CGPath;
posAnim.removedOnCompletion = YES;
//缩放动画
CABasicAnimation *scaleAnim = [CABasicAnimation animationWithKeyPath:@"transform"];
scaleAnim.fromValue = [NSValue valueWithCATransform3D:CATransform3DIdentity];
//动画时的放大缩小倍数
scaleAnim.toValue = [NSValue valueWithCATransform3D:CATransform3DMakeScale(0.3, 0.3, 1)];
scaleAnim.removedOnCompletion = YES;
//透明动画
CABasicAnimation *opacityAnim = [CABasicAnimation animationWithKeyPath:@"alpha"];
opacityAnim.fromValue = [NSNumber numberWithFloat:1.0];
opacityAnim.toValue = [NSNumber numberWithFloat:0.1];
opacityAnim.removedOnCompletion = YES;
//动画组
CAAnimationGroup *animGroup = [CAAnimationGroup animation];
animGroup.animations = [NSArray arrayWithObjects:posAnim, scaleAnim, opacityAnim, nil];
animGroup.duration = 10;
// 这里需要对动画的两个属性进行设置，让图层在完成动画后停留在动画后的状态。a
animGroup.fillMode = kCAFillModeForwards;
animGroup.removedOnCompletion = NO;
[imgView.layer addAnimation:animGroup forKey:nil];
}
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