向“静态单元格"UITableView 添加未知行数

问题描述

我在 Interface Builder 中创建了一个静态表，其中有 6 个部分，所有部分都有不同的行数.我现在想添加具有不同行数的第 7 部分.

I have a static table created in Interface Builder with 6 sections all with different amounts of rows.I now want to add a 7th section with a varying number of rows.

首先，一旦我取消对 Xcode 插入的标准表委托方法的注释，我就会在 self.tableView.tableHeaderView = containerView; 处崩溃；我在表格中添加了一个标题.

First off, as soon as I uncomment the standard table delegate methods that are inserted by Xcode, I get a crash at self.tableView.tableHeaderView = containerView; where I have added a header to the table.

更重要的是我遇到以下代码崩溃

More importantly i'm getting a crash with the following code

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 7;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    if (section==6) {
        return 4;
    } else {
        return [super tableView:tableView numberOfRowsInSection:section];
    }
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{/*
    if (indexPath.section == 6) {
        static NSString *CellIdentifier = @"cellWireless";
        UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

        // Configure the cell...

        return cell;
    }*/
    return [super tableView:tableView cellForRowAtIndexPath:indexPath];
}

如何正确地保留现有部分，但添加带有几个单元格的额外部分?

How do I correctly leave the existing sections as they are, but add an extra one with a few cells?

推荐答案

要将动态单元格添加到静态单元格表​​，您必须覆盖每个具有 indexPath 的 UITableView 委托方法.

To add dynamic cells to a static cells table you have to override every UITableView delegate method that has an indexPath.

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

-(UITableViewCell*)tableView:(UITableView*)tableView cellForRowAtIndexPath:(NSIndexPath*)indexPath
-(BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath

-(BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath

-(UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath

-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
-(NSInteger)tableView:(UITableView *)tableView indentationLevelForRowAtIndexPath:(NSIndexPath *)indexPath

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath

.

-(BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
     return NO;
}

-(BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
{
     return NO;
}

-(UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath
{
     return UITableViewCellEditingStyleNone;
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
     int section = indexPath.section;

     // if dynamic section make all rows the same height as row 0
     if (section == self.dynamicSection) {
          return [super tableView:tableView heightForRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:section]];
     } else {
          return [super tableView:tableView heightForRowAtIndexPath:indexPath];
     }
}

- (NSInteger)tableView:(UITableView *)tableView indentationLevelForRowAtIndexPath:(NSIndexPath *)indexPath
{
     int section = indexPath.section;

     // if dynamic section make all rows the same indentation level as row 0
     if (section == self.dynamicSection) {
          return [super tableView:tableView indentationLevelForRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:section]];
     } else {
          return [super tableView:tableView indentationLevelForRowAtIndexPath:indexPath];
     }
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
     if (section == self.dynamicSection ) {
          return [self.dataListArray count];
     } else {
          return [super tableView:tableView numberOfRowsInSection:section];
     }
}

-(UITableViewCell*)tableView:(UITableView*)tableView cellForRowAtIndexPath:(NSIndexPath*)indexPath
{
     int section = indexPath.section;
     int row = indexPath.row;


     if (section == self.dynamicSection) {
          // make dynamic row's cell
          static NSString *CellIdentifier = @"Dynamic Cell";
          UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

          if (!cell) {
               cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
          }

          cell.textLabel.text = [self.dataListArray objectAtIndex:row];
          return cell;
    } else {
          return [super tableView:tableView cellForRowAtIndexPath:indexPath];
    }
}

只有在覆盖了所有方法后，您的表才会开始工作.对于任何引用静态部分，只需参考 [super].

Only once you have every method overridden will your table start to work. For any referencing the static section, just refer to [super].

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