ios - 如何以编程方式将 JSON 数组从 UITableViewCell 传递到新的 UIViewController？

Question

到目前为止，这是我想通的:

FirstViewController.h

#import <UIKit/UIKit.h>

@interface FirstViewController : UITableViewController <UITableViewDelegate, UITableViewDataSource>

@end

FirstViewController.m

#import "FirstViewController.h"
#import "CellDetailView.h"

@interface FirstViewController()
@property (strong, nonatomic) NSMutableArray *myMutableArray;
@end

- (void)viewDidLoad{
  //...
}

//There's a JSON method here that's working just fine populating the UITableViewCells as intended.
//        ...JSON URL STUFF...
//        [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError){
//        NSError *errorJson = nil;
//        NSDictionary *dataDictionary = [NSJSONSerialization JSONObjectWithData:data options:0 error:&errorJson];
        self.coolDict = [dataDictionary objectForKey:@"coolStuff"];
        self.myMutableArray = [self.coolDict objectForKey:@"stuff_1"];
        [self.tableView reloadData];



//UITableViewCell method here, works great!



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

    [tableView deselectRowAtIndexPath:indexPath animated:NO];
    CellDetailView *nextViewController = [[CellDetailView alloc] init]; //This is a UIViewController Class I made.
    NSDictionary *someInfo = self.myMutableArray[indexPath.row];  // This is logging the array for each cell, that's cool.
    NSLog(@"%@", someInfo);
    [[self navigationController] pushViewController:nextViewController animated:YES];
}

CellDetailView.h

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

@interface CampaignItemDetails : UIViewController

@end

CellDetailView.m

#import "CellDetailView.h"
#import "FirstViewController.h"

@interface CellDetailView ()
@end

@implementation CellDetailView


- (void)viewDidLoad
{
[super viewDidLoad];
self.view.backgroundColor = [UIColor whiteColor];
UILabel *myDetailLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
myDetailLabel.text = someInfo[@"title"];
[self.view addSubview:myDetailLabel];  //THIS DOESNT WORK :(
}

@end

如何将 myMutableArray 放入 CellDetailView 中，以便我可以使用数组中的更多此类 JSON 数据填充 ViewController？

*我知道这个想法是推送到 CellDetailView(而不是从 FirstViewController 拉取)。*

我看到了一个关于如何将数据从 View Controller 传递到 View Controller 的答案，但它非常抽象，而且我对 Objective-C 还很陌生。我还发现了很多关于 Storyboards 和 Nibs 的东西，但我'我没有使用这些东西。

Answer 1

我很想像这样覆盖 initMethod:

 NSDictionary *someInfo = self.myMutableArray[indexPath.row]; 
 CellDetailView *nextViewController = [[CellDetailView alloc] initWithInfo:someInfo];
 [[self navigationController] pushViewController:nextViewController animated:YES];

在您的 cellDetailView 中，确保添加初始化方法:

- (id) initWithInfo:(NSDictionary *) info {

    self = [super init];

    if (self) {

       //Now you can save the info to a private NSDictionary property:

    }

    return self;
}

确保添加:

- (id) initWithInfo:(NSDictionary *) info;

在你的 cellDetailView.h.