释放双眼，带上耳机，听听看~！
// 代码地址: https://github.com/iphone5solo/PYSearch
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/** 添加和布局标签 */- (NSArray *)addAndLayoutTagsWithTagsContentView:(UIView *)contentView tagTexts:(NSArray<NSString *> *)tagTexts;{ // 清空标签容器的子控件 [contentView.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)]; // 添加热门搜索标签 NSMutableArray *tagsM = [NSMutableArray array]; for (int i = 0; i < tagTexts.count; i++) { UILabel *label = [self labelWithTitle:tagTexts[i]]; [label addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tagDidCLick:)]]; [contentView addSubview:label]; [tagsM addObject:label]; } // 计算位置 CGFloat currentX = 0; CGFloat currentY = 0; CGFloat countRow = 0; CGFloat countCol = 0; // 调整布局 for (UILabel *subView in tagsM) { // 当搜索字数过多，宽度为contentView的宽度 if (subView.py_width > contentView.py_width) subView.py_width = contentView.py_width; if (currentX + subView.py_width + PYMargin * countRow > contentView.py_width) { // 得换行 subView.py_x = 0; subView.py_y = (currentY += subView.py_height) + PYMargin * ++countCol; currentX = subView.py_width; countRow = 1; } else { // 不换行 subView.py_x = (currentX += subView.py_width) - subView.py_width + PYMargin * countRow; subView.py_y = currentY + PYMargin * countCol; countRow ++; } } // 设置contentView高度 contentView.py_height = CGRectGetMaxY(contentView.subviews.lastObject.frame); // 设置头部高度 self.baseSearchTableView.tableHeaderView.py_height = self.headerContentView.py_height = CGRectGetMaxY(contentView.frame) + PYMargin * 2; // 重新赋值, 注意：当操作系统为iOS 9.x系列的tableHeaderView高度设置失效，需要重新设置tableHeaderView [self.baseSearchTableView setTableHeaderView:self.baseSearchTableView.tableHeaderView]; return [tagsM copy];}<br><br><br><br> |
/** 添加标签 */
– (UILabel *)labelWithTitle:(NSString *)title
{
UILabel *label = [[UILabel alloc] init];
label.userInteractionEnabled = YES;
label.font = [UIFont systemFontOfSize:12];
label.text = title;
label.textColor = [UIColor grayColor];
label.backgroundColor = [UIColor py_colorWithHexString:@”#fafafa”];
label.layer.cornerRadius = 3;
label.clipsToBounds = YES;
label.textAlignment = NSTextAlignmentCenter;
[label sizeToFit];
label.py_width += 20;
label.py_height += 14;
return label;
}