UIButton随笔

改变button文字位置：

1.

//按钮文字如何水平定位内容内部控制。默认是中心

  scopebtn .contentHorizontalAlignment=UIControlContentHorizontalAlignmentLeft;

/*

 UIControlContentHorizontalAlignmentCenter =0,居中

    UIControlContentHorizontalAlignmentLeft  =1,居左

    UIControlContentHorizontalAlignmentRight  =2,居右

    UIControlContentHorizontalAlignmentFill  =3,

    UIControlContentHorizontalAlignmentLeading  API_AVAILABLE(ios(11.0), tvos(11.0)) =4,

    UIControlContentHorizontalAlignmentTrailingAPI_AVAILABLE(ios(11.0), tvos(11.0)) =5,

*/

//按钮文字如何在控件内部垂直定位内容。默认是中心

button .contentVerticalAlignment=UIControlContentVerticalAlignmentTop;

/*

 UIControlContentVerticalAlignmentCenter  =0,

    UIControlContentVerticalAlignmentTop    =1,

    UIControlContentVerticalAlignmentBottom  =2,

    UIControlContentVerticalAlignmentFill    =3,

*/

2.通过改变button的titleEdgelnsets根据上、左、下、右来改变位置

button.titleEdgeInsets=UIEdgeInsetsMake(0, 0, 0, 50);

注意：所设置的值是按照按钮的中心来改变的

欢迎指正！！！