objective-c - tableHeaderview问题

问题描述

橘黄色区域是创建的tableHeaderView，那2行按钮本来是添加在这个tableHeaderView上的，却显示在了cell上，是什么问题？？？

下面是代码：

-(CGFloat)initHeadView:(NSMutableArray *)hotArray{

CGFloat headHeight = 0.0;//热門搜索UIView *view = [[UIView alloc]initWithFrame:CGRectMake(0, 0, Width(_searchTableview), 0)];view.backgroundColor = [UIColor orangeColor];if ([hotArray count] > 0){ UILabel *lab = [[UILabel alloc]initWithFrame:(CGRect){Margin, 0, 100.0, Size.height}]; lab.font = [UIFont systemFontOfSize:14.0]; lab.textAlignment = NSTextAlignmentLeft; lab.textColor = [UIColor lightGrayColor]; lab.backgroundColor = [UIColor clearColor]; lab.text = @'熱門搜索'; [view addSubview:lab]; headHeight += Height(lab) + ORIGIN(view).y; // 热门搜索按钮 CGFloat w = Margin; NSInteger row = 1; CGFloat y = 0.0; CGFloat x = 0.0;for (int i=0; i<[hotArray count]; i++) {UIButton *btn = [self createHotButton:hotArray[i]];x = w;if(w+Width(btn)+Margin/2 > MaxWidth){ w = Margin; x = w; row ++; if (row > 2) break;// 最多显示2行}else{ w += Width(btn)+Margin/2;}y = ((row>1) ? (BtnHeight + Margin) : (Margin/2)) + ORIGIN(lab).y + Height(lab);btn.frame = CGRectMake(x, y, Width(btn), BtnHeight);[view addSubview:btn]; }//for循环结束 CGFloat btnsH = 0.0; if (row == 1)btnsH = Margin/2 + BtnHeight; elsebtnsH = BtnHeight*2 + Margin; headHeight += btnsH;}view.frame = CGRectMake(ORIGIN(view).x, ORIGIN(view).y, Width(_searchTableview), headHeight);_searchTableview.tableHeaderView = view;return headHeight;

}

问题解答

你这。。。。 返回一个高度是要做什么？view return回去放在header 上就行了

创建按钮时：btn.autoresizingMask = UIViewAutoresizingFlexibleBottomMargin；//添加这个就OK