如何推动从必须从一个以.json文件解析的对象一个UITableViewCell一个mapKit看法？

Question

@property NSArray* restaurants; 

@end 

@implementation RestaurantsTableViewController 

- (void)viewDidLoad { 
    [super viewDidLoad]; 

    [self requestRestaurants]; 
} 

- (void)requestRestaurants { 
    NSString *urlString = @"https://s3-us-west-2.amazonaws.com/samwell.party/yasminucla/restaurants.json"; 
    NSURL *url = [NSURL URLWithString:urlString]; 

    NSData *restaurantData = [NSData dataWithContentsOfURL:url]; 

    self.restaurants = [NSJSONSerialization JSONObjectWithData:restaurantData 
                 options:NSJSONReadingAllowFragments 
                 error:nil]; 
    [self.tableView reloadData]; 
} 
#pragma mark - Table view data source 

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { 
    return 1; 
} 

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { 
    return [self.restaurants count]; 
} 

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

    NSInteger index = indexPath.row; // Get the row that we're at 
    NSString* restaurant = self.restaurants[index]; // Get the name of the restaurant for the row from the array 
    cell.textLabel.text = restaurant; // Set the cell text to be the name of the restaurant 

    return cell; 
} 

@end 

我有一个UITableView控制器嵌入在故事板一个TabViewController并加入细胞中以编程表视图。该电池具有从互联网上传.json文件下载的对象。我想被点击时，它的mapKit观点推到每个单独的小区，但林不知道如何做到这一点，因为我不能在故事板分别连接电池。

Answer 1

您需要使用didSelectRowAtIndexPath和performSegueWithIdentifier。

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    [self performSegueWithIdentifier:@"yourSegue" sender:self]; 
} 

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender 
{ 
    UIViewController *mapViewController = segue.destinationViewController; 
    NSString* restaurant = self.restaurants[index]; 
    mapViewController.title = restaurant; 
} 

参见：How to make a push segue when a UITableViewCell is selected

Answer 2

您回应

self.storyboard =  [ 
          "Mr. Chow", 
          "Panera Bread", 
          "Il Pastaio", 
          "Jinky's Cafe", 
          "Kazu Nori", 
          "Happy Days" 
           ] 

添加一个类名是的MapViewController然后使属性传递JSON数据

#import <UIKit/UIKit.h> 

@interface MapViewController : UIViewController 
@property(nonatomic,strong)NSString*PassVarible; 

@end 

添加写入代码后，您的初始类

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath 
    { 
     MapViewController*vc=[self.storyboard instantiateViewControllerWithIdentifier:@"MapViewController"]; 
     vc.PassVarible=[self.restaurants objectAtIndex:indexPath.row]; 
     [self.navigationController pushViewController:vc animated:YES]; 
    }