Question

我创建了一个包含特定属性列表的自定义单元格，包括UITabBar。这个单元格有一个名为RecomandationCell的特定类，我在这里声明了这些属性。

我使用这个自定义单元格创建了包含不同对象的多个单元格，我也想知道当我在特定行中单击此标签栏的项目时，调用其来自<UITabBarControllerDelegate>的委托的方法< / p>

- (void)tabBar:(UITabBar *)tabBar didSelectItem:(UITabBarItem *)item
{
    if (item.tag==0)
    {
        NSLog(@"Likes Clicked");
    }
    if (item.tag==1)
    {
        NSLog(@"Comments Clicked");
    }
    if (item.tag==2)
    {
        NSLog(@"Shares Clicked");
    }
    if (item.tag==3)
    {
        NSLog(@"Add Clicked");
    }
    if (item.tag==4)
    {
        NSLog(@"Ratings Clicked");
    }
}

问题是这个方法不会被触发，因为我不知道委派它的位置，即使我委托它，我也不知道点击了特定索引的哪个标签栏。

This image shows graphically what I am trying to do

RecomandationCell.h

#import <UIKit/UIKit.h>


@interface RecomandationCell : UITableViewCell <UITabBarControllerDelegate>

@property (weak, nonatomic) IBOutlet UIImageView *wineImage;
@property (weak, nonatomic) IBOutlet UITextView *wineName;
@property (weak, nonatomic) IBOutlet UILabel *wineYear;
@property (weak, nonatomic) IBOutlet UITabBar *socialTabBar;

@end

RecomandationCell.m

#import "RecomandationCell.h"

@implementation RecomandationCell
@synthesize socialTabBar;

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
    if (self) {
        // Initialization code
    }
    return self;
}

- (void)setSelected:(BOOL)selected animated:(BOOL)animated
{
    [super setSelected:selected animated:animated];

    // Configure the view for the selected state
}

- (void)tabBar:(UITabBar *)tabBar didSelectItem:(UITabBarItem *)item
{
    if (item.tag==0)
    {
        NSLog(@"Likes Clicked");
    }
    if (item.tag==1)
    {
        NSLog(@"Comments Clicked");
    }
    if (item.tag==2)
    {
        NSLog(@"Shares Clicked");
    }
    if (item.tag==3)
    {
        NSLog(@"Add Clicked");
    }
    if (item.tag==4)
    {
        NSLog(@"Ratings Clicked");
    }
}
@end

RecomandationViewController.h

#import <UIKit/UIKit.h>
#import "RecomandationCell.h"

@interface RecomandationViewController : UIViewController <UITableViewDataSource,UITableViewDataSource,RecommandationCellDelegate>

@property (weak, nonatomic) IBOutlet UISegmentedControl *segmentView;
@property (weak, nonatomic) IBOutlet UITableView *winesTable;

@end

RecomandationViewController.m

#import "RecomandationViewController.h"
#import "RecomandationCell.h"

@interface RecomandationViewController ()

@end

@implementation RecomandationViewController
{
    NSMutableArray *rowArray;

    //Titles for wine properties
    NSMutableArray *wineNames;
    NSMutableArray *wineProductors;
    NSMutableArray *winePlaces;
    NSMutableArray *wineYears;
    NSMutableArray *wineRatings;

    //Badges for Tab Bar items
    NSMutableArray *nrOfRatings;
    NSMutableArray *nrOfLikes;
    NSMutableArray *nrOfComments;
    NSMutableArray *nrOfShares;
    NSMutableArray *addToWishLists;

}
@synthesize winesTable,segmentView;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    rowArray = [[NSMutableArray alloc]initWithObjects:@"picture1.jpg",@"picture2.jpg",@"picture3.jpg",@"image4.jpeg",@"image5.jpeg",@"image6.jpeg", nil];
    // Do any additional setup after loading the view.
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}


- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    // Return the number of sections.
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    // Return the number of rows in the section.
//    return rowArray.count;
    return 6;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"mainCell";


    RecomandationCell *cell = [self.winesTable dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
    cell.delegate = self;

    cell.wineImage.contentMode = UIViewContentModeScaleAspectFill;
    cell.wineImage.image = [UIImage imageNamed:[rowArray objectAtIndex:indexPath.row]];

    [[cell.socialTabBar.items objectAtIndex:0]setBadgeValue:@"2"];
    [[cell.socialTabBar.items objectAtIndex:1]setBadgeValue:@"3"];
    [[cell.socialTabBar.items objectAtIndex:2]setBadgeValue:@"4"];
    [[cell.socialTabBar.items objectAtIndex:4]setBadgeValue:@"19"];


    cell.wineYear.text = @"2014";
    cell.wineName.text = @"Alex\nMandi\nTirana\nOK";



    return cell;
}


@end

如有任何建议或需要更多信息，请随时发表评论

Answer 1

你可以这样做吗

CustomCell.h

中的

 @interface CustomTabedCell : UITableViewCell<UITabBarDelegate>//confirms to delegate

在CustomCell.m文件中

  #import "CustomTabedCell.h"

  @implementation CustomTabedCell

  - (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
 {
    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
    if (self) {
    // Initialization code

    UITabBarItem *firstItem = [[UITabBarItem alloc]initWithTitle:@"1" image:nil tag:10];//you can specify image hear i put nil 
    UITabBarItem *secondItem = [[UITabBarItem alloc]initWithTitle:@"2" image:nil tag:11]; // ... give tag number
    UITabBar *tabBar = [[UITabBar alloc]initWithFrame:CGRectMake(0, 0, 320, 70)]; //leave this if u are added in xib
    tabBar.delegate = self; //delegate to custom cell itself
    tabBar.tag = 100;//leave
    tabBar.items = [NSArray arrayWithObjects:firstItem,secondItem, nil];//add to tab bar
    [self.contentView addSubview:tabBar];

   }
  return self;
 }

  //in custom cell u are getting the delegate call's

 - (void)tabBar:(UITabBar *)tabBar didSelectItem:(UITabBarItem *)item
  {
    if (item.tag==10) //compare using tages as u added to tabed bar
     {
        NSLog(@"Likes Clicked");
     }
     if (item.tag==11)
    {
       NSLog(@"Comments Clicked");
    }
    if (item.tag==12)
    {
       NSLog(@"Shares Clicked");
    }
    if (item.tag==13)
   {
      NSLog(@"Add Clicked");
   }
   if (item.tag==14)
   {
       NSLog(@"Ratings Clicked");
   }
 }

之后你可以调用自定义委托方法给控制器进行进一步处理

Answer 2

首先：当您可能想要指定UITabBarControllerDelegate时，您已在单元格的界面中指定了UITabBarDelegate。

第二：在创建标签栏时设置委托。您提供的代码不会显示此信息。您需要在某处初始化tabbar，然后在其上设置委托。

第三：在单元格中设置特定内容的地方位于tableviewcontroller中的cellForRowAtIndexPath。

第四：要获取tapped tabbar-item的索引，可以使用didSelectItem方法执行此操作：

NSUInteger indexOfTab = [[tabBar items] indexOfObject:item];
NSLog(@"Tab index = %u", indexOfTab);

从自定义UITableViewCell委派TabBar

2 个答案: