iOS设置UIButton文字对齐方式和边距

按钮对齐与间距设置

最新推荐文章于 2023-02-21 13:26:42 发布

原创最新推荐文章于 2023-02-21 13:26:42 发布 · 2.2k 阅读

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本文详细介绍了在iOS开发中，如何使用UIButton的属性来设置按钮的文字对齐方式及文字与边框的距离，包括垂直对齐（顶部、居中、底部、填充）、水平对齐（居中、左侧、右侧、填充、前导、尾随），并提供了具体代码示例。

按钮垂直对齐方式

@property(nonatomic) UIControlContentVerticalAlignment contentVerticalAlignment;

typedef NS_ENUM(NSInteger, UIControlContentVerticalAlignment) {
    UIControlContentVerticalAlignmentCenter        = 0,
    UIControlContentVerticalAlignmentTop           = 1,
    UIControlContentVerticalAlignmentBottom        = 2,
    UIControlContentVerticalAlignmentFill          = 3,
};

按钮水平对齐方式

@property(nonatomic) UIControlContentHorizontalAlignment contentHorizontalAlignment;

typedef NS_ENUM(NSInteger, UIControlContentHorizontalAlignment) {
    UIControlContentHorizontalAlignmentCenter = 0,
    UIControlContentHorizontalAlignmentLeft   = 1,
    UIControlContentHorizontalAlignmentRight  = 2,
    UIControlContentHorizontalAlignmentFill   = 3,
    UIControlContentHorizontalAlignmentLeading  API_AVAILABLE(ios(11.0), tvos(11.0)) = 4,
    UIControlContentHorizontalAlignmentTrailing API_AVAILABLE(ios(11.0), tvos(11.0)) = 5,
};

设置按钮文字左对齐

btn.contentHorizontalAlignment = UIControlContentHorizonAlignmentLeft;

设置按钮文字与边框距离

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