masonry 实现tableview headerview高度自适应

一: 第1次踩坑:

设置headerview 约束

#import "EditorHeaderView.h"
- (void)bankViewInit{
    [self addSubview:self.titleLabel];
    [self addSubview:self.contentPromptLabel];
    [self.titleLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self);
        make.left.right.equalTo(self);
        make.height.mas_equalTo(140);
    }];
  [self.contentPromptLabel mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.titleLabel.mas_bottom);
        make.left.right.equalTo(self);
        make.height.mas_equalTo(100);
        // 自适应高度
        make.bottom.equalTo(self);
    }];
  // self 自适应高度
    CGFloat height = [self systemLayoutSizeFittingSize:UILayoutFittingCompressedSize].height;
    CGRect frame = self.frame;
    frame.size.height = height;
    self.frame = frame;
}

将headerview设置为tableview头视图

    EditorHeaderView *headerView = [[EditorHeaderView alloc] init];
    self.tableView.tableHeaderView = headerView;

一: 第2次踩坑:

代码如下:

/** tableview-HeaderView */
    self.positionTableView.tableHeaderView = self.tableHeaderView;
    [self.tableHeaderView addSubview:self.netWorthView];
    [self.tableHeaderView addSubview:self.calendarView];
    [self.tableHeaderView addSubview:self.accountInfoView];
    [self.tableHeaderView addSubview:self.positionPromptLable];
    [self.netWorthView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.tableHeaderView);
        make.left.equalTo(self).offset(leftOffset);
        make.right.equalTo(self).offset(-leftOffset);
        make.height.mas_equalTo(CF_BitMap_BY_SIZE(340));
    }];
    [self.calendarView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.netWorthView.mas_bottom);
        make.left.equalTo(self.positionTableView).offset(leftOffset);
        make.right.equalTo(self.positionTableView).offset(-leftOffset);
        make.height.mas_equalTo(CF_BitMap_BY_SIZE(5));
    }];
    [self.accountInfoView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.calendarView.mas_bottom);
        make.left.equalTo(self.positionTableView).offset(leftOffset);
        make.right.equalTo(self.positionTableView).offset(-leftOffset);
        make.height.mas_equalTo(CF_BitMap_BY_SIZE(5));
    }];
    [self.positionPromptLable mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.accountInfoView.mas_bottom);
        make.left.equalTo(self.positionTableView).offset(leftOffset);
        make.right.equalTo(self.positionTableView).offset(-leftOffset);
        make.height.mas_equalTo(CF_BitMap_BY_SIZE(5));
        make.bottom.equalTo(self.tableHeaderView).priorityHigh();
    }];
    {
        /** 高度自适应 */
        UIView *headerView = self.tableHeaderView;
        CGFloat height = [headerView systemLayoutSizeFittingSize:UILayoutFittingCompressedSize].height;
        CGRect headerFrame = headerView.frame;
        headerFrame.size.height = height;
        headerView.frame = headerFrame;
        self.positionTableView.tableHeaderView = headerView;
    }

一: 第3次踩坑:

通过网络请求，获取数据动态改变高度

-(void)bankViewInit{
    [self addSubview:self.bgView];
    [self.bgView addSubview:self.appBoxView];
    [self.bgView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.left.right.equalTo(self);
        make.bottom.equalTo(self.appBoxView.mas_bottom).offset(CF_BG_VIEW_OFFSET);
    }];
    [self.appBoxView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.equalTo(self.bgView).offset(CF_BG_VIEW_OFFSET);
        make.left.equalTo(self.bgView).offset(CF_BG_VIEW_OFFSET);;
        make.right.equalTo(self.bgView).offset(-CF_BG_VIEW_OFFSET);;
    }];
    // 样式设置
    self.bgView.backgroundColor = CF_COLOR_LINE;
}

#pragma mark set
- (void)setApps:(NSArray<NSString *> *)apps{
    if(_apps) return;
    _apps = apps;
    int count = 3;
    float size = self.width/(count+1);
    
    // 计算布局高度
    int line = (int)apps.count/count;
    if (apps.count%count != 0) line += 1;
    float height = (size+CF_BG_VIEW_OFFSET) * line;
    [self.appBoxView mas_updateConstraints:^(MASConstraintMaker *make) {
        make.height.mas_equalTo(height);
    }];
    
    // 九宫格布局
    for (NSInteger index = 0; index<apps.count; index++) {
        NSString *app = apps[index];
        HomeTableHeaderItemView *itemView = [[HomeTableHeaderItemView alloc] initWithFrame:CGRectZero];
        [itemView setClickBlock:^{
            self.ItemClickBlock(app);
        }];
        [self.appViewArray addObject:itemView];
        [self.appBoxView addSubview:itemView];
    }

    [self.appViewArray mas_distributeSudokuViewsWithFixedItemWidth:size fixedItemHeight:size warpCount:count topSpacing:0 bottomSpacing:0 leadSpacing:0 tailSpacing:0];
    
    // 计算内容高度
    CGFloat contentHeight = [self.bgView systemLayoutSizeFittingSize:UILayoutFittingCompressedSize].height;
    CGRect frame = self.frame;
    frame.size.height = contentHeight;
    self.frame = frame;
}

- (void)setApps:(NSArray<NSString *> *)apps{
    _apps = apps;
    self.tableView.tableHeaderView = self.headerToolView;
    self.headerToolView.apps = apps;
}