表格视图选择新视图
这是我目前拥有的代码：
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *__strong)indexPath {
DetailViewController *detail = [self.storyboard instantiateViewControllerWithIdentifier:@"Detail"];
[self.navigationController pushViewController:detail animated:YES];
detail.rowNum.text = [NSString stringWithFormat:@"Image %d", (indexPath.row + 1)];
}
它为表视图上的每个单元格加载相同的视图控制器。我如何声明我只希望在选择某一特定行时发生这种情况？因此，例如我会让上述内容仅适用于第一行，每个额外行都有另一个实例？或者，这可以在 Xcode 的 Storyboard 部分完成吗？
更新：根据答案，我已将代码更新为工作正常，所以我想使用 if 没有 else 就可以了？
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *__strong)indexPath {
if (indexPath.row == 0) {
DetailViewController *detail = [self.storyboard instantiateViewControllerWithIdentifier:@"Detail"];
[self.navigationController pushViewController:detail animated:YES];
detail.rowNum.text = [NSString stringWithFormat:@"Image %d", (indexPath.row + 1)];
}
if (indexPath.row == 1) {
DetailViewController *detail = [self.storyboard instantiateViewControllerWithIdentifier:@"Forum"];
[self.navigationController pushViewController:detail animated:YES];
}
}
Here is the code I have at present:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *__strong)indexPath {
DetailViewController *detail = [self.storyboard instantiateViewControllerWithIdentifier:@"Detail"];
[self.navigationController pushViewController:detail animated:YES];
detail.rowNum.text = [NSString stringWithFormat:@"Image %d", (indexPath.row + 1)];
}
which loads the same view controller for every cell on my table view. how do i state that i only want this to happen when one particular row is selected? so for instance i would make the above apply only to row one with another instance for each extra row? alternatively, can this much be done in the storyboard section of Xcode?
UPDATE: following an answer I've updated the code to this which works fine, so i guess it's fine to use if without else?
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *__strong)indexPath {
if (indexPath.row == 0) {
DetailViewController *detail = [self.storyboard instantiateViewControllerWithIdentifier:@"Detail"];
[self.navigationController pushViewController:detail animated:YES];
detail.rowNum.text = [NSString stringWithFormat:@"Image %d", (indexPath.row + 1)];
}
if (indexPath.row == 1) {
DetailViewController *detail = [self.storyboard instantiateViewControllerWithIdentifier:@"Forum"];
[self.navigationController pushViewController:detail animated:YES];
}
}
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检查indexPath.row ==是否是你想要的行。如果您的表格是静态的，则只能在故事板中执行此操作。
Check if indexPath.row == to the row you want. You could only do it in storyboard if your table was static.