iOS 水平对齐内容

示例

迅速

//将内容对齐到框架的左侧

button.contentHorizontalAlignment = .left

//将内容对齐到框架的右侧

button.contentHorizontalAlignment = .right

//将内容对齐框架的中心

button.contentHorizontalAlignment = .center

//使内容填充框架

button.contentHorizontalAlignment = .fill

目标C

//将内容向左对齐

button.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft;

//将内容向右对齐

button.contentHorizontalAlignment = UIControlContentHorizontalAlignmentRight;

//将内容对齐中心

button.contentHorizontalAlignment = UIControlContentHorizontalAlignmentCenter;

//对齐内容以填充框架

button.contentHorizontalAlignment = UIControlContentHorizontalAlignmentFill;