iOS开发自定义页脚和页眉技巧详解

        [_tableView registerClass:[CRMPasswordRuleDescHeaderFooterView class] forHeaderFooterViewReuseIdentifier:@"CRMPasswordRuleDescHeaderFooterView"];

- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
    CRMPasswordRuleDescHeaderFooterView *footerView = [tableView dequeueReusableHeaderFooterViewWithIdentifier:@"CRMPasswordRuleDescHeaderFooterView"];
//    footerView.type = self.type;
    footerView.models = self.viewModel.passwordRuleDescModel;
    return footerView;
}

#import <UIKit/UIKit.h>
#import "CRMPasswordRuleDescV.h"
NS_ASSUME_NONNULL_BEGIN
@interface CRMPasswordRuleDescHeaderFooterView : UITableViewHeaderFooterView
@property (nonatomic,weak) CRMPasswordRuleDescV *cellView;
@property (nonatomic, strong) CRMPasswordRuleDescModel* models;
@end

- (instancetype)initWithReuseIdentifier:(NSString *)reuseIdentifier{
    if (self = [super initWithReuseIdentifier:reuseIdentifier]) {
        [self selfInit];
//        [self createSubView];
//        [self addConstraints];
//        [self bindViewModel];
    }
    return self;
}
- (void)selfInit{
    self.backgroundColor = [UIColor whiteColor];
//    UITableViewHeaderFooterView
//    [self bgBottomView];
    [self cellView];
//    UITapGestureRecognizer *cutTap = [[UITapGestureRecognizer alloc] init];
//    [[cutTap rac_gestureSignal] subscribeNext:^(id x) {
//
//
//        NSLog(@" cutTap 点击了 ");
//        self.models.gotype = QCTreturnOrderModelblockType4jumpDetail;
//        if ( self.models.block) {
//            self.models.block(self.models);
//        }
//
//
//    }];
//    [self addGestureRecognizer:cutTap];
//
//
}
/**
 */
- (void)setModels:( id)models{
    _models =models;
    self.cellView.models = models;
}
- (CRMPasswordRuleDescV *)cellView{
    if (nil == _cellView) {
        CRMPasswordRuleDescV *tmpView = [[CRMPasswordRuleDescV alloc]init];
        _cellView = tmpView;
        _cellView.backgroundColor = rgb(255,255,255);
        [self.contentView addSubview:_cellView];
        __weak __typeof__(self) weakSelf = self;
        [_cellView mas_makeConstraints:^(MASConstraintMaker *make) {
//            make.left.equalTo(weakSelf.contentView).offset(kAdjustRatio(0));
//            make.right.equalTo(weakSelf.contentView).offset(- kAdjustRatio(0));
            make.left.equalTo(weakSelf.contentView).offset(kAdjustRatio(0));
            make.right.equalTo(weakSelf.contentView).offset(- kAdjustRatio(0));
            make.top.equalTo(weakSelf.contentView).offset(kAdjustRatio(0));
            make.bottom.equalTo(weakSelf.contentView).offset(kAdjustRatio(0));
        }];
    }
    return _cellView;
}

#import "CRMPasswordRuleDescModel.h"
NS_ASSUME_NONNULL_BEGIN
@interface CRMPasswordRuleDescV : UIView
@property (nonatomic, strong) CRMPasswordRuleDescModel* models;
@property (nonatomic,weak) UILabel *titleLab;
@end

- (instancetype)init {
    self = [super init];
    if (self) {////既然nil解析成NO，所以没有必要在条件语句比较。不要拿某样东西直接与YES比较，因为YES被定义为1
        // ...
        [self titleLab];
    }
    return self;
}
- (UILabel *)titleLab{
    if (nil == _titleLab) {
        UILabel *header = [[UILabel alloc]init];
        _titleLab = header;
        [self addSubview:_titleLab];
        header.textColor =  rgb(153,153,153);
        header.font = kPingFangNOkAdjustRatioFont(13);
        //    tmp.backgroundColor = ;
        header.numberOfLines = 0;
//        header.contentView.backgroundColor = self.tableView.backgroundColor;
        __weak __typeof__(self) weakSelf = self;
        [header mas_makeConstraints:^(MASConstraintMaker *make) {
            make.top.equalTo(weakSelf).offset(kAdjustRatio(13));
            make.left.equalTo(weakSelf).offset(kAdjustRatio(20));
            make.right.equalTo(weakSelf).offset(kAdjustRatio(-20));
            make.bottom.equalTo(weakSelf).offset(kAdjustRatio(-13));
        }];
    }
    return _titleLab;
}
- (void)setModels:(CRMPasswordRuleDescModel *)models{
    _models = models;
    self.titleLab.text = models.title;
}

- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section{
    switch (section) {
        case CRMRisk_merchant_editVSection4basicInfo:
        {
            return kAdjustRatio(30);
        }
            break;
        case CRMRisk_merchant_editVSection4UploadMaterials:
        {
            return kAdjustRatio(30);
        }
            break;
        default:
        {
            return kAdjustRatio(0);
        }
            break;
    }
}
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section{
    UIView *bacView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, kWidth, kAdjustRatio(30))];
    bacView.backgroundColor = rgb(248, 248, 248);
        bacView.height = KWratio(25);
        UILabel *titLab = [ControlManager text:@"基本信息" font:displayFontSize(12.0f) color:HWColor(153, 153, 153) alingment:0 fontWithName:@"PingFang-SC-Medium"];
        [bacView addSubview:titLab];
        [titLab mas_makeConstraints:^(MASConstraintMaker *make) {
            make.left.offset(KWratio(15));
            make.centerY.offset(KWratio(0));
        }];
    switch (section) {
        case CRMRisk_merchant_editVSection4basicInfo:
        {
            titLab.text = @"基本信息";
        }
            break;
        case CRMRisk_merchant_editVSection4UploadMaterials:
        {
            titLab.text = @"风险处理";
        }
            break;
        default:
        {
            titLab.text = @"";
        }
            break;
    }
    return bacView;
//    UIView *tmp = [UIView new];
//
//    tmp.backgroundColor = self.backgroundColor;
//
//    return tmp;
}

//修改 tableViewSectionHeader 字体及背景色
-(void)tableView:(UITableView *)tableView willDisplayHeaderView:(UIView *)view forSection:(NSInteger)section{
    UITableViewHeaderFooterView *header = (UITableViewHeaderFooterView *)view;
    header.textLabel.textColor =  rgb(153,153,153);
    header.textLabel.font = kPingFangFont(13);
    header.textLabel.numberOfLines = 0;
    header.contentView.backgroundColor = self.tableView.backgroundColor;
}
- (NSString*)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{
    if (CRM_Change_PasswordViewSectionEnum4SurePassword ==  section) {
        return QCTLocal(@"新密码不少于6位，须包含大小写字母，数字和特殊字符");
    }
    return nil;
}