iOS开发笔记-cell里点击按钮展开收起-动态改变cell行高

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1.cell for row

<span style="white-space:pre"><span style="background-color: rgb(255, 255, 255);"></span></span><span style="background-color: rgb(255, 255, 255);">//配置cell</span>

<span style="white-space: pre;"></span><span style="background-color: rgb(255, 255, 255);">[cell congigCell:cell.dic];</span>

<span style="background-color: rgb(255, 255, 255);"><span style="white-space:pre"></span>//下拉展开按钮                cell.ZhankaiBtn.tag = indexPath.row+1000;                [cell.ZhankaiBtn addTarget:self action:@selector(zhankai:) forControlEvents:UIControlEventTouchUpInside];                cell.selectionStyle = UITableViewCellSelectionStyleNone;                return cell;</span>

<span style="background-color: rgb(255, 255, 255);">2.按钮点击事件</span>

<span style="font-size:10px;background-color: rgb(255, 255, 255);"></span><p style="margin-top: 0px; margin-bottom: 0px; line-height: normal; font-family: Menlo;">-(void)zhankai:(UIButton *)btn{</p><p style="margin-top: 0px; margin-bottom: 0px; line-height: normal; font-family: Menlo;">    <span style="white-space:pre"></span>NSMutableDictionary *dic;</p><p style="margin-top: 0px; margin-bottom: 0px; line-height: normal; font-family: Menlo;">    <span style="white-space:pre"></span>btn.selected = !btn.selected;</p><p style="margin-top: 0px; margin-bottom: 0px; line-height: normal; font-family: Menlo;"> <span style="white-space:pre"></span>dic = [NSMutableDictionary dictionaryWithDictionary:self.valueArray[btn.tag-1000]];</p><p style="margin-top: 0px; margin-bottom: 0px; line-height: normal; font-family: Menlo;">//1 2 标识一种状态 1代表展开状态 2代表闭合状态</p><p style="margin-top: 0px; margin-bottom: 0px; line-height: normal; font-family: Menlo;">        if ([[dic safeNullWithKey:@"iszhankai"] isEqualToString:@"2"]) {</p><p style="margin-top: 0px; margin-bottom: 0px; line-height: normal; font-family: Menlo; min-height: 21px;">            [dic setObject:@"1" forKey:@"iszhankai"];</p><p style="margin-top: 0px; margin-bottom: 0px; line-height: normal; font-family: Menlo;">        }else if ([[dic safeNullWithKey:@"iszhankai"] isEqualToString:@"1"]) {</p><p style="margin-top: 0px; margin-bottom: 0px; line-height: normal; font-family: Menlo;">            [dic setObject:@"2" forKey:@"iszhankai"];</p><p style="margin-top: 0px; margin-bottom: 0px; line-height: normal; font-family: Menlo;">        }else{</p><p style="margin-top: 0px; margin-bottom: 0px; line-height: normal; font-family: Menlo;">            [dic setObject:@"1" forKey:@"iszhankai"];</p><p style="margin-top: 0px; margin-bottom: 0px; line-height: normal; font-family: Menlo;">        }</p><p style="margin-top: 0px; margin-bottom: 0px; line-height: normal; font-family: Menlo;">        [self.valueArray replaceObjectAtIndex:btn.tag-1000 withObject:dic];</p><p style="margin-top: 0px; margin-bottom: 0px; line-height: normal; font-family: Menlo;"> <span style="white-space:pre"></span>NSIndexPath *path = [NSIndexPath indexPathForRow:btn.tag-1000 inSection:1];</p><p style="margin-top: 0px; margin-bottom: 0px; line-height: normal; font-family: Menlo; min-height: 21px;">   <span style="white-space:pre"></span>[self.ev_tableView reloadRowsAtIndexPaths:@[path] withRowAnimation:UITableViewRowAnimationAutomatic];</p>

2.height for row

//这里我用一个方法统一来计算高度

return [calcuH cellHeight:dic];

//-----------------------------------------------

-(CGFloat)cellHeight:(NSDictionary *)dic{

//45 26+

CGFloat heightt = 45+26+5;

/*评价内容*/ //在我的另一篇文章里有这个方法，地址：http://blog.csdn.net/jp940110jpjp/article/details/42262021

CGSize labContextWidth = [calculatorStringSize stringSize:[dic objectForKey:@"evaluateContext"] widthOfFatherView:WIDTH-20 textFont:[UIFont systemFontOfSize:11.0]];

if ([[dic safeNullWithKey:@"iszhankai"] isEqualToString:@"1"]) {

heightt+= labContextWidth.height;

}else{

if (labContextWidth.height>=30) {

heightt+= 30+10+14;

}else{

heightt+= labContextWidth.height;

}

CGFloat imgVWidth = (SCREEN_WIDTH-26-18) /4.0;

NSArray *imageArray = dic[@"evaluateIcons"];

if (imageArray.count>=1) {

heightt+= 10+imgVWidth+15+12+20;

}else{

heightt+= 10+15+12+20;

}

return heightt;

}

OK，大致这些，写的很粗糙，还有很多需要优化的地方，cell里的配置方法，根据dic里的@"iszhankai"参数进行相应的配置就行，有好的建议欢迎大家提出来

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