objective-c UITableView，我怎么知道在 cellForRowAtIndexPath 期间是哪个部分？
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UITableView, how do I know what Section during cellForRowAtIndexPath?
提问by James P. Wright
I have a UITableView displaying a list of Cities. I want to separate them by State. I can't seem to figure out how to get it to pick the right items out of my Array. If Section 1 (Arizona) has 2 Cities and Section 2 (California) has 2 Cities, during cellForRowAtIndexPath, Section 2, City 1 has an index of 0, even though it's the 3rd item in my array. I thought about just turning my City Array into a State Array, where each item holds an Array of Cities, but I still don't know what section I'm on and therefore don't know which City Array under the States Array I would need to access.
我有一个显示城市列表的 UITableView。我想按州将它们分开。我似乎无法弄清楚如何让它从我的 Array 中选择正确的项目。如果第 1 节（亚利桑那州）有 2 个城市，第 2 节（加利福尼亚州）有 2 个城市，则在 cellForRowAtIndexPath 期间，第 2 节城市 1 的索引为 0，即使它是我的数组中的第 3 项。我想把我的城市阵列变成一个状态阵列，其中每个项目都包含一个城市阵列，但我仍然不知道我在哪个部分，因此不知道我会在状态阵列下哪个城市阵列需要访问。
回答by Yannick Compernol
The method is called
该方法被称为
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
The indexpath parameter contains a row and section property.
indexpath 参数包含行和节属性。
indexPath.section
indexPath.row
Here's documentation link for the NSIndexPathclass.
这是NSIndexPath类的文档链接。
回答by Morion
you can use indexPath.sectionand indexPath.row
你可以使用indexPath.section和indexPath.row
回答by Akbar Khan
Swift 3, 4 and 4.2
斯威夫特 3、4 和 4.2
Using Switch
使用开关
switch indexPath.section {
case 0:
print("Write your code for section number one.")
case 1:
print("Write you code for section number two")
default:
return
}
Using if else
使用 if else
if indexPath.section == 0 {
print("Write your code for section number one.")
} else if indexPath.section == 1 {
print("Write your code for section number two.")
}
