#import <UIKit/UIKit.h>@interface CQSortButton : UIButton/** 按鈕文本 */@property (nonatomic, copy) NSString *title;/** 是否是升序 */@property (nonatomic, assign, readonly, getter=isAscending) BOOL ascending;@end

#import "CQSortButton.h"@interface CQSortButton ()/** 文本label */@property (nonatomic, strong) UILabel *cq_titleLabel;/** 箭頭imageView */@property (nonatomic, strong) UIImageView *cq_arrowImageView;@end@implementation CQSortButton#pragma mark - 構(gòu)造方法- (instancetype)initWithFrame:(CGRect)frame { if (self = [super initWithFrame:frame]) {  [self setupUI]; } return self;}#pragma mark - UI搭建- (void)setupUI { self.layer.borderColor = [UIColor blackColor].CGColor; self.layer.borderWidth = 1; // 文本和圖片的父view UIView *contentView = [[UIView alloc] init]; [self addSubview:contentView]; contentView.userInteractionEnabled = NO; [contentView mas_makeConstraints:^(MASConstraintMaker *make) {  make.top.bottom.centerX.mas_equalTo(self);  make.left.mas_greaterThanOrEqualTo(self).mas_offset(3);  make.right.mas_lessThanOrEqualTo(self).mas_offset(-3); }]; // 文本 self.cq_titleLabel = [[UILabel alloc] init]; [contentView addSubview:self.cq_titleLabel]; self.cq_titleLabel.font = [UIFont boldSystemFontOfSize:13]; self.cq_titleLabel.adjustsFontSizeToFitWidth = YES; [self.cq_titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {  make.top.bottom.left.mas_offset(0); }]; // 圖片 self.cq_arrowImageView = [[UIImageView alloc] init]; [contentView addSubview:self.cq_arrowImageView]; self.cq_arrowImageView.image = [UIImage imageNamed:@"up_down"]; [self.cq_arrowImageView mas_makeConstraints:^(MASConstraintMaker *make) {  make.size.mas_equalTo(CGSizeMake(20, 20));  make.centerY.mas_equalTo(contentView);  make.left.mas_equalTo(self.cq_titleLabel.mas_right);  make.right.mas_equalTo(contentView); }];}#pragma mark - 賦值選中狀態(tài)- (void)setSelected:(BOOL)selected { //// 注意： //// selected 表示你要賦值的狀態(tài) //// super.selected 表示當(dāng)前處于的狀態(tài) if (selected) { // 即將設(shè)置成選中狀態(tài)  if (super.selected) { // 如果原本就處于選中狀態(tài)   // 那么就切換篩選狀態(tài)   _ascending = !_ascending;   if (_ascending) {    // 升序    self.cq_arrowImageView.image = [UIImage imageNamed:@"red_arrow_up"];   } else {    // 降序    self.cq_arrowImageView.image = [UIImage imageNamed:@"red_arrow_down"];   }  } else { // 如果之前不是選中狀態(tài)   // 那么設(shè)置成選中的默認(rèn)排序狀態(tài)：升序   _ascending = YES;   self.cq_arrowImageView.image = [UIImage imageNamed:@"red_arrow_up"];  } } else { // 即將設(shè)置成非選中狀態(tài)  // 設(shè)置成非選中狀態(tài)的圖片  self.cq_arrowImageView.image = [UIImage imageNamed:@"up_down"]; } // 最后再賦值 [super setSelected:selected];}#pragma mark - 賦值文本- (void)setTitle:(NSString *)title { _title = title; self.cq_titleLabel.text = title;}@end

- (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view. NSArray *titleArray = @[@"同比", @"銷售額", @"
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