有時需要對某個特定的View進行平移＋旋轉的操作，其實很簡單，只需要一個動畫組就可以解決：

#pragma mark 動畫
- (void)tipAnimation:(UIView *)tipView toPoint:(CGPoint)toPoint angle:(CGFloat)angle{
    //平移
    CGPoint fromPoint = tipView.center;
    UIBezierPath *movePath = [UIBezierPath bezierPath];
    [movePath moveToPoint:fromPoint];
    CGPoint newtoPoint = CGPointMake(fromPoint.x+toPoint.x , fromPoint.y+toPoint.y) ;
    [movePath addLineToPoint:newtoPoint];
    
    CAKeyframeAnimation *moveAnim = [CAKeyframeAnimation animationWithKeyPath:@"position"];
    moveAnim.path = movePath.CGPath;
    moveAnim.duration = self.animationDuration;
    moveAnim.repeatCount = 1;
    moveAnim.removedOnCompletion = NO;
    moveAnim.fillMode = kCAFillModeForwards;
    moveAnim.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut];
    
    //旋轉
    CABasicAnimation *TransformAnim = [CABasicAnimation animationWithKeyPath:@"transform"];
    TransformAnim.fromValue = [NSValue valueWithCATransform3D:CATransform3DIdentity];
    
    //沿Z軸旋轉
    TransformAnim.toValue = [NSValue valueWithCATransform3D: CATransform3DMakeRotation(angle,0,0,1)];
    TransformAnim.cumulative = YES;
    TransformAnim.duration =self.animationDuration;
    TransformAnim.repeatCount = 1;
    tipView.center = toPoint;
    TransformAnim.removedOnCompletion = NO;
    TransformAnim.fillMode = kCAFillModeForwards;
    TransformAnim.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseOut];
    
    //動畫組
    CAAnimationGroup *animGroup = [CAAnimationGroup animation];
    animGroup.animations = [NSArray arrayWithObjects:moveAnim, TransformAnim, nil];
    animGroup.duration = self.animationDuration;
    animGroup.repeatCount = 1;
    animGroup.removedOnCompletion = NO;
    animGroup.fillMode = kCAFillModeForwards;
    
    [tipView.layer addAnimation:animGroup forKey:nil];
}