TableView详细解释

Bertha 。 2022-08-21 05:44 221阅读 0赞

</pre> －、建立 UITableView<p></p><div style="padding:0px; margin:0px; color:rgb(44,44,44); font-family:宋体,'Arial Narrow',arial,serif; font-size:14px"></div><pre name="code" class="html"> DataTable = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, 320, 420)];
     [DataTable setDelegate:self];
     [DataTable setDataSource:self];
     [self.view addSubview:DataTable];
     [DataTable release];

二、UITableView各Method说明

//Section总数

- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView{
     return TitleData;
    }

// Section Titles

//每个section显示的标题

- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{
     return @"";
    }

//指定有多少个分区(Section)，默认为1

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
     return 4;
    }

//指定每个分区中有多少行，默认为1

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
    }

//绘制Cell

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    static NSString *SimpleTableIdentifier = @"SimpleTableIdentifier";
      
        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:
                                 SimpleTableIdentifier];
        if (cell == nil) {  
            cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
                                           reuseIdentifier: SimpleTableIdentifier] autorelease];
     }
     cell.imageView.image=image;//未选cell时的图片
     cell.imageView.highlightedImage=highlightImage;//选中cell后的图片
     cell.text=//.....
     return cell;
    }

//行缩进

-(NSInteger)tableView:(UITableView *)tableView indentationLevelForRowAtIndexPath:(NSIndexPath *)indexPath{
     NSUInteger row = [indexPath row];
     return row;
    }

//改变行的高度

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
        return 40;
    }

//定位

[TopicsTable setContentOffset:CGPointMake(0, promiseNum * 44 + Chapter * 20)];

//返回当前所选cell

NSIndexPath *ip = [NSIndexPath indexPathForRow:row inSection:section];
    [TopicsTable selectRowAtIndexPath:ip animated:YES scrollPosition:UITableViewScrollPositionNone];
     
    [tableView setSeparatorStyle:UITableViewCellSelectionStyleNone];

//选中Cell响应事件

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
     [tableView deselectRowAtIndexPath:indexPath animated:YES];//选中后的反显颜色即刻消失
    }

//判断选中的行（阻止选中第一行）

-(NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath
    {
        NSUInteger row = [indexPath row];
        if (row == 0)
            return nil;
       
        return indexPath;
    }

//划动cell是否出现del按钮

- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
    }

//编辑状态

- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle
    forRowAtIndexPath:(NSIndexPath *)indexPath
    {
    ｝
    [topicsTable setContentSize:CGSizeMake(0,controller.promiseNum * 44)];

//右侧添加一个索引表

- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView{
    }

//返回Section标题内容

- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{
    }

//自定义划动时del按钮内容

- (NSString *)tableView:(UITableView *)tableView
    titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath
    //跳到指的row or section
    [tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:0] atScrollPosition:UITableViewScrollPositionBottom animated:NO];

三、在UITableViewCell上建立UILable多行显示

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
        static NSString *CellIdentifier = @"Cell";   
        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
        if (cell == nil) {
            cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease];
      UILabel *Datalabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 0, 320, 44)];
      [Datalabel setTag:100];
      Datalabel.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
      [cell.contentView addSubview:Datalabel];
      [Datalabel release];
     } 
     UILabel *Datalabel = (UILabel *)[cell.contentView viewWithTag:100];
     [Datalabel setFont:[UIFont boldSystemFontOfSize:18]];
     Datalabel.text = [data.DataArray objectAtIndex:indexPath.row];
     cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
        return cell;
    }

//选中cell时的颜色

typedef enum {
        UITableViewCellSelectionStyleNone,
        UITableViewCellSelectionStyleBlue,
        UITableViewCellSelectionStyleGray
    } UITableViewCellSelectionStyle

//cell右边按钮格式

typedef enum {
        UITableViewCellAccessoryNone,                   // don't show any accessory view
        UITableViewCellAccessoryDisclosureIndicator,    // regular chevron. doesn't track
        UITableViewCellAccessoryDetailDisclosureButton, // blue button w/ chevron. tracks
        UITableViewCellAccessoryCheckmark               // checkmark. doesn't track
    } UITableViewCellAccessoryType

//是否加换行线

typedef enum {
        UITableViewCellSeparatorStyleNone,
        UITableViewCellSeparatorStyleSingleLine
    } UITableViewCellSeparatorStyle//改变换行线颜色
    tableView.separatorColor = [UIColor blueColor];