ios 返回时取消选择表视图行
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Deselecting the table view row when returning
提问by cannyboy
I followed Luke Redpath's suggestion here - Selected UItableViewCell staying blue when selected- to deselect the row when returning to the original table view, but I can't get it working. In fact the method doesn't get triggered.
我在这里遵循了 Luke Redpath 的建议 - Selected UItableViewCell 在选择时保持蓝色- 在返回原始表格视图时取消选择该行，但我无法让它工作。事实上，该方法不会被触发。
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
[self.tableView deselectRowAtIndexPath:[self.tableView indexPathForSelectedRow] animated:YES];
}
I suspect this is because the class isn't a UITableViewController, but a UIViewControllerwith the tableViewas a property connected up to the NIB.
我怀疑这是因为该类不是一个UITableViewController，而是一个UIViewController与tableView作为属性连接到NIB。
How would I get the same behavior - ie deselecting when returning?
我将如何获得相同的行为 - 即返回时取消选择？
回答by ahmad
why you just don't deselect it in the delegate method
为什么你只是不在委托方法中取消选择它
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[self.tableView deselectRowAtIndexPath:[self.tableView indexPathForSelectedRow] animated:YES];
}
回答by grilix
If you are using a NavigationController, you can do it with its delegate:
如果您使用的是 NavigationController，则可以使用其委托来完成：
- (void)navigationController: (UINavigationController *)navigationController
didShowViewController: (UIViewController *)viewController
animated: (BOOL)animated
{
[self.tableView deselectRowAtIndexPath:[self.tableView indexPathForSelectedRow] animated:YES];
}
But you have to check whether the show controller is which you want =/
但是，你必须检查显示控制器是否是你想要= /
[EDIT] Create the outlet and link it in IB to NavigationController
[编辑] 创建插座并将其在 IB 中链接到 NavigationController
@interface MyInt <UINavigationControllerDelegate>
{
IBOutlet UINavigationController *navigation;
...
}
@property (nonatomic, retain) UINavigationController *navigation;
...
@end
@implementation MyInt
@syntesize navigation;
- (void)viewDidLoad
{
[super viewDidLoad];
[self.navigation setDelegate: self];
}
...
@end
回答by Alexander Wallin
Are you selecting the row programmatically? If so, I had the same problem when selecting a row using [cellToBeSelected setSelected:YES];.
您是否以编程方式选择行？如果是这样，我在使用[cellToBeSelected setSelected:YES];.
By using the UITableViewController's selectRowAtIndexPath:animated:scrollPosition:method it kept track of the current selected indexPath.
通过使用UITableViewController的selectRowAtIndexPath:animated:scrollPosition:方法，它跟踪当前选定的 indexPath。
In fact, if clearsSelectionOnViewWillAppearis set to true, one does not have deselect rows manually.
实际上，如果clearsSelectionOnViewWillAppear设置为true，则无需手动取消选择行。
回答by FrankWest
I hade the same problem, but after debugging I found out the indexPathForSelectedRow count was 0 so I double checked my code and noticed I was calling
我遇到了同样的问题，但在调试后我发现 indexPathForSelectedRow 计数为 0，所以我仔细检查了我的代码并注意到我正在调用
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
// some code...
[tableView deselectRowAtIndexPath:indexPath animated:YES];
}
After deleting this line it just worked as expected.
删除此行后，它按预期工作。
回答by Rajesh Loganathan
Very simple :Try this line.
很简单：试试这条线。
Add deselectRowAtIndexPathin your didSelectRowAtIndexPath
加入deselectRowAtIndexPath你的didSelectRowAtIndexPath
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
[tableView deselectRowAtIndexPath:indexPath animated:YES];
}
回答by Dhruv Khatri
Swift 3.0
斯威夫特 3.0
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
tableView.deselectRow(at: indexPath, animated: true)
//Write Your Other code Here.
}
It Will deselect Row after you click on It.
单击它后，它将取消选择行。
回答by Ranjeet Singh
-(BOOL)tableView:(UITableView *)tableView shouldHighlightRowAtIndexPath:(NSIndexPath *)indexPath
{
return YES;
}
-(void)tableView:(UITableView *)tableView didHighlightRowAtIndexPath:(NSIndexPath *)indexPath
{
[[tableView cellForRowAtIndexPath:indexPath] setBackgroundColor:[UIColor grayColor]];
}
-(void)tableView:(UITableView *)tableView didUnhighlightRowAtIndexPath:(NSIndexPath *)indexPath
{
[[tableView cellForRowAtIndexPath:indexPath] setBackgroundColor:[UIColor clearColor]];
}
