ios 如何将行动态添加到特定的 UITableView 部分？
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How to dynamically add rows to a specific UITableView section?
提问by vmfesta
I am a new IOS Programmer, and i am having a issue.
我是一个新的 IOS 程序员，我遇到了一个问题。
I have a UITableView with 2 sections, one then is static, and another one is dynamical.
我有一个包含 2 个部分的 UITableView，一个是静态的，另一个是动态的。
In specific actions i need to add new rows for the second section in runtime..
在特定操作中，我需要在运行时为第二部分添加新行。
I know how to manage a UITableView , but not a specific section
我知道如何管理 UITableView ，但不知道如何管理特定部分
Could you help me please?
请问你能帮帮我吗？
Best Regards you all
向大家致以最诚挚的问候
回答by Akhilrajtr
You can use insertRowsAtIndexPaths:method of UITableView
你可以使用insertRowsAtIndexPaths:方法UITableView
//Update data source with the object that you need to add
[tableDataSource addObject:newObject];
NSInteger row = //specify a row where you need to add new row
NSInteger section = //specify the section where the new row to be added,
//section = 1 here since you need to add row at second section
NSIndexPath *indexPath = [NSIndexPath indexPathForRow:row inSection:section];
[self.tableView beginUpdates];
[self.tableView insertRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationRight];
[self.tableView endUpdates];
回答by Anil Varghese
You can use the same method insertRowAtIndexPathlike
你可以用同样的方法insertRowAtIndexPath一样
// Add the items into your datasource object first. Other wise you will end up with error
// Manage the number of items in section. Then do
NSIndexPath *indexPath1 = [NSIndexPath indexPathForRow:0 inSection:1];
NSIndexPath *indexPath2 = [NSIndexPath indexPathForRow:1 inSection:1];
[self.tableView insertRowsAtIndexPaths:@[indexPath1,indexPath2] withRowAnimation:UITableViewRowAnimationTop];
This will insert two rows to the section1. Remember before doing this you have manage your datasource object.
这将在 section1 中插入两行。请记住，在执行此操作之前，您已经管理了数据源对象。
回答by Anand
Swift 3version
斯威夫特 3版本
// Adding new item to your data source
dataSource.append(item)
// Appending new item to table view
yourTableView.beginUpdates()
// Creating indexpath for the new item
let indexPath = IndexPath(row: dataSource.count - 1, section: yourSection)
// Inserting new row, automatic will let iOS to use appropriate animation
yourTableView.insertRows(at: [indexPath], with: .automatic)
yourTableView.endUpdates()
回答by Arun Yadav
you can do this by using scrolltoinfinite method but before that u have to import 3rd party svpulltorefresh
你可以通过使用 scrolltoinfinite 方法来做到这一点，但在此之前你必须导入 3rd party svpulltorefresh
[self.tableViewMixedFeed addInfiniteScrollingWithActionHandler:^{
CGFloat height = self.tableViewMixedFeed.frame.size.height;
CGFloat contentYoffset = self.tableViewMixedFeed.contentOffset.y;
CGFloat distanceFromBottom = self.tableViewMixedFeed.contentSize.height - contentYoffset;
if(distanceFromBottom<contentYoffSet)
{
[weak insertRowAtBottom];
}
}];
-(void)insertRowAtBottom
{
[self.tableViewMixedFeed beginUpdates];
[self.tableViewMixedFeed insertRowsAtIndexPaths:indexPaths1 withRowAnimation:UITableViewRowAnimationTop];
[self.tableViewMixedFeed endUpdates];
[self.tableViewMixedFeed.infiniteScrollingView stopAnimating];
}
here indexpaths1 is the array of indexpaths of next cells which u want to insert in a table . try using loop to get the next set of arrays and store them into indexpaths1.
这里 indexpaths1 是您要插入表中的下一个单元格的索引路径数组。尝试使用循环获取下一组数组并将它们存储到 indexpaths1 中。
回答by asdafd
[self.tableView insertRowsAtIndexPaths:@[indexPath1,indexPath2] withRowAnimation:UITableViewRowAnimationTop];
[self.tableView insertRowsAtIndexPaths:@[indexPath1,indexPath2] withRowAnimation:UITableViewRowAnimationTop];
USE THIS METHOD..
使用这个方法..
