128 lines
5.9 KiB
Objective-C
128 lines
5.9 KiB
Objective-C
//
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// UIButton+QX.m
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// QXLive
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//
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// Created by 启星 on 2025/4/28.
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//
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#import "UIButton+QX.h"
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@implementation UIButton (QX)
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- (void)qx_layoutButtonWithEdgeInsetsStyle:(QXButtonEdgeInsetsStyle)style
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imageTitleSpace:(CGFloat)space{
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[self sizeToFit];
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[self qx_layoutButtonNOSizeToFitWithEdgeInsetsStyle:style imageTitleSpace:space];
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}
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- (void)qx_layoutButtonNOSizeToFitWithEdgeInsetsStyle:(QXButtonEdgeInsetsStyle)style
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imageTitleSpace:(CGFloat)space {
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/**
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* 前置知识点：titleEdgeInsets是title相对于其上下左右的inset，跟tableView的contentInset是类似的，
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* 如果只有title，那它的上下左右都是相对于button的，image也是一样；
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* 如果同时有image和label，那这时候image的上左下是相对于button，右边是相对于label的；title的上右下是相对于button，左边是相对于image的。
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*/
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CGFloat spacef = ceilf(space);
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// 1.得到imageView和titleLabel的宽、高
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CGFloat imageWidth = self.imageView.frame.size.width;
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CGFloat imageHeight = self.imageView.frame.size.height;
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CGFloat labelWidth = 0.0;
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CGFloat labelHeight = 0.0;
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if (@available(iOS 8.0, *)) {
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// 由于iOS8中titleLabel的size为0，用下面的设置
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labelWidth = self.titleLabel.intrinsicContentSize.width;
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labelHeight = self.titleLabel.intrinsicContentSize.height;
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}else {
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labelWidth = self.titleLabel.frame.size.width;
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labelHeight = self.titleLabel.frame.size.height;
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}
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// 2.声明全局的imageEdgeInsets和labelEdgeInsets
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UIEdgeInsets imageEdgeInsets = UIEdgeInsetsZero;
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UIEdgeInsets labelEdgeInsets = UIEdgeInsetsZero;
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UIEdgeInsets contentEdgeInsets = UIEdgeInsetsZero;
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CGFloat imageOffSetX = labelWidth / 2.0;
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CGFloat labelOffSetX = imageWidth / 2.0;
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CGFloat maxWidth = MAX(imageWidth,labelWidth); // 上下排布宽度肯定变小 获取最大宽度的那个
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CGFloat changeWidth = imageWidth + labelWidth - maxWidth; // 横向缩小的总宽度
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CGFloat maxHeight = MAX(imageHeight,labelHeight); // 获取最大高度那个 （就是水平默认排布的时候的原始高度）
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// 3.根据style和spacef得到imageEdgeInsets和labelEdgeInsets的值
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switch (style) {
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case QXButtonEdgeInsetsStyleTop:
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{
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CGFloat gap = (maxHeight - MIN(imageHeight, labelHeight))/2.0;
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if (imageHeight >= labelHeight) {
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imageEdgeInsets = UIEdgeInsetsMake(0, imageOffSetX, 0, -imageOffSetX);
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labelEdgeInsets = UIEdgeInsetsMake(labelHeight + gap + spacef, -labelOffSetX, -(labelHeight + gap + spacef), labelOffSetX);
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contentEdgeInsets = UIEdgeInsetsMake(0, - changeWidth / 2.0, spacef + labelHeight, -changeWidth / 2.0);
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}else{
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imageEdgeInsets = UIEdgeInsetsMake(-(gap + imageHeight + spacef), imageOffSetX, gap + imageHeight + spacef, -imageOffSetX);
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labelEdgeInsets = UIEdgeInsetsMake(0, -labelOffSetX, 0, labelOffSetX);
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contentEdgeInsets = UIEdgeInsetsMake(spacef + imageHeight, - changeWidth / 2.0, 0, -changeWidth / 2.0);
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}
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}
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break;
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case QXButtonEdgeInsetsStyleLeft:
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{
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imageEdgeInsets = UIEdgeInsetsMake(0, -spacef/2.0, 0, spacef/2.0);
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labelEdgeInsets = UIEdgeInsetsMake(0, spacef/2.0, 0, -spacef/2.0);
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contentEdgeInsets = UIEdgeInsetsMake(0, spacef/2.0, 0, spacef/2.0);
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}
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break;
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case QXButtonEdgeInsetsStyleBottom:
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{
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CGFloat gap = (maxHeight - MIN(imageHeight, labelHeight))/2.0;
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if (imageHeight >= labelHeight) {
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imageEdgeInsets = UIEdgeInsetsMake(0,
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imageOffSetX,
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0,
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-imageOffSetX);
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labelEdgeInsets = UIEdgeInsetsMake(-(labelHeight + gap + spacef),
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-labelOffSetX,
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labelHeight + gap + spacef,
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labelOffSetX);
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contentEdgeInsets = UIEdgeInsetsMake(spacef + labelHeight,
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- changeWidth / 2.0,
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0,
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-changeWidth / 2.0);
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}else{
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imageEdgeInsets = UIEdgeInsetsMake(gap + imageHeight + spacef,
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imageOffSetX,
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-(gap + imageHeight + spacef),
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-imageOffSetX);
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labelEdgeInsets = UIEdgeInsetsMake(0,
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-labelOffSetX,
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0,
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labelOffSetX);
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contentEdgeInsets = UIEdgeInsetsMake(0,
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- changeWidth / 2.0,
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spacef + imageHeight,
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-changeWidth / 2.0);
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}
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}
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break;
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case QXButtonEdgeInsetsStyleRight:
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{
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imageEdgeInsets = UIEdgeInsetsMake(0, labelWidth+spacef/2.0, 0, -labelWidth-spacef/2.0);
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labelEdgeInsets = UIEdgeInsetsMake(0, -imageWidth-spacef/2.0, 0, imageWidth+spacef/2.0);
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contentEdgeInsets = UIEdgeInsetsMake(0, spacef/2.0, 0, spacef/2.0);
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}
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break;
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default:
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break;
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}
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// 4.赋值
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self.titleEdgeInsets = labelEdgeInsets;
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self.imageEdgeInsets = imageEdgeInsets;
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self.contentEdgeInsets = contentEdgeInsets;
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}
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@end
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