How can I make a vertical UIToolbar?

问题

How can I make a vertical UIToolbar?

回答1:

Try this

#define M_PI 3.141

UIToolbar *tool;

tool.transform = CGAffineTransformRotate(CGAffineTransformIdentity, 270.0/180*M_PI);

回答2:

Subclass UIToolbar and do the following:

CGFloat DegreesToRadian(CGFloat degrees)
{
    return ((M_PI * (degrees))/ 180.0);
}

- (id)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) 
    {
        self.transform = CGAffineTransformMakeRotation(DegreesToRadian(90));
    }
    return self;
}

- (void)layoutSubviews
{
    [super layoutSubviews];
    for (UIView * subView in self.subviews) 
    {
        if(!CGRectEqualToRect(subView.bounds, self.bounds))
            subView.transform = CGAffineTransformMakeRotation(DegreesToRadian(-90));
    }
}

来源：https://stackoverflow.com/questions/4570940/how-can-i-make-a-vertical-uitoolbar