UIButton设置 textAlignment 属性的方法

 

button.contentHorizontalAlignment =UIControlContentHorizontalAlignmentLeft;

button.contentHorizontalAlignment =UIControlContentHorizontalAlignmentRight;

//枚举类型
typedef NS_ENUM(NSInteger, UIControlContentHorizontalAlignment) {
    UIControlContentHorizontalAlignmentCenter = 0,

    UIControlContentHorizontalAlignmentLeft   = 1,

    UIControlContentHorizontalAlignmentRight  = 2,

    UIControlContentHorizontalAlignmentFill   = 3,

};