修改tabbar大小并隐藏tabbar的横线和导航的横线

// 修改tabbar大小

    CGRect frame = self.tabBar.frame;

    frame.size.height = 55;

    frame.origin.y = self.view.frame.size.height - frame.size.height;

    self.tabBar.frame = frame;

    self.tabBar.backgroundColor = [UIColor whiteColor];

    self.tabBar.barStyle = UIBarStyleDefault;

    //此处需要设置barStyle，否则颜色会分成上下两层

 

// 隐藏tabbar的横线

    [self.tabBar setBackgroundImage:[UIImage new]];

    [self.tabBar setShadowImage:[UIImage new]];

 

// 隐藏导航的横线


　[self.navigationController.navigationBar setBackgroundImage:[UIImage new] forBarMetrics:UIBarMetricsDefault];

　[self.navigationController.navigationBar setShadowImage:[UIImage new]];

 

// 导航透明设置

　 [self.navigationController.navigationBar setTranslucent:NO];