iOS开发自定义页脚和页眉技巧详解

前言应用场景：商品管理列表的页眉显示商品数量和批量操作修改界面对密码规则的说明I 自定义页脚和页眉如果系统的APItitleForHeaderInSect

前言

应用场景：

商品管理列表的页眉显示商品数量和批量操作

修改界面对密码规则的说明

I 自定义页脚和页眉

如果系统的APItitleForHeaderInSection 满足不了你的需求，可以自定义UITableViewHeaderFooterView。

1.1 自定义分组页眉的步骤

自定义UITableViewHeaderFooterView的步骤:

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

创建

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

实现UITableViewHeaderFooterView

1.2 实现UITableViewHeaderFooterView

案例：密码规则的说明 .h

#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;
}

CRMPasswordRuleDescV.h

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

CRMPasswordRuleDescV.m

- (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;
}

1.3 其他案例

- (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;
}

II titleForHeaderInSection

//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;
}

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