ios - 根据 UIPickerView 更新 UITableView 单元格

Question

我有一个UIPickerView

-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView     
{     
 return 1;
}

-(NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component 
{
 return seasons.count;
}

-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component 
{
 if ([season selectedRowInComponent:0] == 6) {
    matches = [[NSMutableArray alloc] initWithCapacity: 20];
    [matches insertObject:[NSMutableArray arrayWithObjects:@"aaa", @"bbb", @"1-0", @"15-03-2010", nil] atIndex:0];
 } else if
 .
 .
 .
}

然后我有一个 UITableView

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
 return matches.count;
}

- (CustomCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{     
 static NSString *simpleTableIdentifier = @"customCell";

 CustomCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];

 if (cell == nil) {
    cell = [[CustomCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier];
 }
 cell.team1.text = matches[indexPath.row][0];
 cell.team2.text = matches[indexPath.row][1];
 cell.score.text = matches[indexPath.row][2];

 return cell;
}

所以现在 UITableView 中充满了我在 viewDidLoad 中初始化的 matches 数组中的对象。如何根据 UIPickerView 的选定行更新单元格内容？

Answer 1

更新 matches 数组后，只需调用 [self.tableView reloadData];。

-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component 
{
 if ([season selectedRowInComponent:0] == 6) {
    matches = [[NSMutableArray alloc] initWithCapacity: 20];
    [matches insertObject:[NSMutableArray arrayWithObjects:@"aaa", @"bbb", @"1-0", @"15-03-2010", nil] atIndex:0];
 } else if
 .
 .
 .

 [self.tableView reloadData];
}

这假设 self 既是 TableView 数据源/委托(delegate)又是选择器 View 数据源/委托(delegate)