UILabelを回転

gistfile1.m

- (void)rotateLabel:(UILabel* )label
{
    CGAffineTransform transform = CGAffineTransformMakeRotation(M_PI_2);  // 90度回転

    // アニメーションなしで回転
    label.transform = transform;

    // 3.0[sec]かけて回転
   [UIView animateWithDuration:1.0 animations:^{
        label.transform = transform;
    }];


}