为啥不显示披露指标？

Posted 2023-03-21

【中文标题】为啥不显示披露指标？

【英文标题】：Why disclosure indicator don't show?为什么不显示披露指标？

【发布时间】：2016-02-15 07:44:17

【问题描述】：

当应用程序在模拟器中运行时，披露指示器不显示。因此，我无法进入详细信息

NamesTableViewController.m：

#import "NamesTableViewController.h"

@interface NamesTableViewController ()
@property (nonatomic, copy) NSDictionary *propertyList;
@property (nonatomic, copy) NSArray *letters;
@property (nonatomic, copy)NSMutableArray *filteredNames;
@property (nonatomic, strong)UISearchController *searchController;


@end

@implementation NamesTableViewController

@synthesize propertyList,  letters, filteredNames, searchController;

- (void)viewDidLoad 
    [super viewDidLoad];

    UITableView *tableView = (id)[self.view viewWithTag:1];

    [tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"Cell"];

    filteredNames = [[NSMutableArray alloc]init];
    searchController = [[UISearchController alloc]init];

    //bura bax self yigishdir
    self.searchController.searchResultsUpdater = self;

    NSString *path = [[NSBundle mainBundle] pathForResource:@"names" ofType:@"plist"];
    self.propertyList = [NSDictionary dictionaryWithContentsOfFile:path];
    self.letters = [[self.propertyList allKeys] sortedArrayUsingSelector:@selector(compare:)];


#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView 
    if (tableView.tag == 1)

        return self.letters.count;

    else 
        return 1;
    

    

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 

    if (tableView.tag == 1) 

        NSString *letter = self.letters[section];
        NSArray *keyValues = [self.propertyList[letter] allKeys];
        return keyValues.count;
     else 


        return [filteredNames count];
    



- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
    static NSString *CellIdentifier = @"Cell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];

    // Configure the cell...

    if (tableView.tag == 1)

        NSString *letter = self.letters[indexPath.section];;
        NSArray *keyValues = [[self.propertyList[letter] allKeys] sortedArrayUsingSelector:@selector(compare:)];
        cell.textLabel.text = keyValues[indexPath.row];
     else
        cell.textLabel.text = filteredNames[indexPath.row];
    
    return cell;


-(NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView 
    return self.letters;


-(NSString*)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section 

    if (tableView.tag == 1) 
        return letters [section];
     else 
        return nil;
    


#pragma mark Search Display Delegate Methods

-(void)searchDisplayController:(UISearchController *)controller didLoadSearchResultsTableView:(UITableView *)tableView 
    [tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"Cell"];




-(BOOL)searchDisplayController:(UISearchController *)controller shouldReloadTableForSearchString:(NSString *)searchString



    [filteredNames removeAllObjects];
    if (searchString.length > 0) 
        NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF contains [search] %@", self.searchBar.text];

        for (NSString *letter in letters) 
            NSArray *matches = [[self.propertyList[letter] allKeys]filteredArrayUsingPredicate:predicate];

            [filteredNames addObjectsFromArray:matches];

        

    

    return YES;



@end

NamesTableViewController.h：

#import <UIKit/UIKit.h>


@interface NamesTableViewController : UITableViewController <UISearchDisplayDelegate, UISearchBarDelegate>


@property (strong, nonatomic) IBOutlet UISearchBar *searchBar;

@end

我怎样才能做到这一点？请帮助我。我是新人

【问题讨论】：

你的detailViewController是什么？您如何导航到 detailViewController？您是在使用任何 segue 还是将其推送到您的 didselectrowAtIndexPath 中？您可以在代码或界面构建器中设置配件类型。

我在界面生成器中设置但在运行应用程序时不起作用。我使用segue（显示）

您的 detailViewController 在情节提要中？是否嵌入在导航控制器中？

是的。当然我添加了

【参考方案1】：

试试这个

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
    static NSString *CellIdentifier = @"Cell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];

    cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;

    .......

更新

 - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath

// Navigation logic may go here, for example: If your are used in connection 
// use this

   [self performSegueWithIdentifier:@"yourSegueName" sender:self];

 // if you are used connection less in storyboard , use this
 DetailViewController *vc = [self.storyboard instantiateViewControllerWithIdentifier:@"DetailViewController"];
   // Push the view controller.
[self.navigationController pushViewController:vc animated:YES];

【讨论】：

显示附件。但不要去 DetailViewController

我怎样才能做到这一点？

如果你点击UITableViewCellAccessoryDisclosureIndicator你不想执行任何操作，更正

当我点击 go to detailviewcontroller 时我想要

@FaHu -- 最后一个疑问，你的detailviewcontroller被添加到storyboard或者xib中