九月 20, 2011

iphone开发-UITableView详细讲解(转)

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-、建立 UITableView

[code lang=”c”]

 DataTable = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, 320, 420)];
 [DataTable setDelegate:self];
 [DataTable setDataSource:self];
 [self.view addSubview:DataTable];
 [DataTable release];

[/code]

二、UITableView各Method说明

[code lang=”c”]
//Section总数
– (NSArray *)sectionIndexTitlesForTab leView:(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)numberOfSectionsInTableV iew:(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 dequeueReusableCellWithI dentifier:
                            SimpleTableIdentifier];
   if (cell == nil) {
       cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefa ult
                                      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 indentationLevelForRowAt IndexPath:(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:UITableViewScrollPositio nNone];
[tableView setSeparatorStyle:UITableViewCellSelection StyleNone];
//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:(UITableViewCellEditingSt yle)editingStyle
forRowAtIndexPath:(NSIndexPath *)indexPath
{

[topicsTable setContentSize:CGSizeMake(0,controller.promiseNum * 44)];
//右侧添加一个索引表
– (NSArray *)sectionIndexTitlesForTab leView:(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
titleForDeleteConfirmati onButtonForRowAtIndexPat h:(NSIndexPath *)indexPath
//跳到指的row or section
[tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:0] atScrollPosition:UITableViewScrollPositio nBottom animated:NO];

[/code]

三、在UITableViewCell上建立UILable多行显示

[code lang=”c”]

– (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
   static NSString *CellIdentifier = @"Cell";
   UITableViewCell *cell = [tableView dequeueReusableCellWithI dentifier: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 = UIViewAutoresizingFlexib leWidth | UIViewAutoresizingFlexib leHeight;
  [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 = UITableViewCellAccessory DisclosureIndicator;
   return cell;
}

//选中cell时的颜色

typedef enum {
   UITableViewCellSelection StyleNone,
   UITableViewCellSelection StyleBlue,
   UITableViewCellSelection StyleGray
} UITableViewCellSelection Style

//cell右边按钮格式

typedef enum {
   UITableViewCellAccessory None,                   // don’t show any accessory view
   UITableViewCellAccessory DisclosureIndicator,    // regular chevron. doesn’t track
   UITableViewCellAccessory DetailDisclosureButton, // blue button w/ chevron. tracks
   UITableViewCellAccessory Checkmark               // checkmark. doesn’t track
} UITableViewCellAccessory Type //是否加换行线

typedef enum {
   UITableViewCellSeparator StyleNone,
   UITableViewCellSeparator StyleSingleLine
} UITableViewCellSeparator Style//改变换行线颜色

tableView.separatorColor = [UIColor blueColor];

[/code]

本文转自:http://zyc-to.blog.163.com/blog/static/171524002010112831630425/

Category : iOSiPhoneMac

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