UIButton文字位置显示

按钮的文字居右

UIButton *rightButton = [[UIButton alloc] initWithFrame:CGRectMake(rightButtonX, 0,rightButtonW , frame.size.height)];

//如果紧紧设置以下代码，不会生效

rightButton.titleLabel.textAlignment = NSTextAlignmentRight;

//需要加上这边这一行

rightButton.contentHorizontalAlignment = UIControlContentHorizontalAlignmentRight;

//如果不想让文字紧贴着边框，就加上下一行

rightButton.contentEdgeInsets = UIEdgeInsetsMake(0,0, 0, 10);

文字和图片的位置调换

CGRect rightButtonFrame = self.rightButton.frame;

 self.rightButton.titleEdgeInsets = UIEdgeInsetsMake(0, 0, 0, 15);

 self.rightButton.imageEdgeInsets = UIEdgeInsetsMake(0, rightButtonFrame.size.width - 10, 0, 0);