Ios 使用相同json提要的两个表视图

我有一个表格视图，当你按下一个单元格时，它会把你带到另一个表格视图。它使用相同的json提要，并将提要放入两个表的viewdidload方法中。当你按下进入下一个表格视图时，加载速度很慢，我猜是因为它再次加载了提要。我可以将json提要放在第一个表中，然后将其带到下一个表中，这样它就不需要再次加载它了吗？如果是这样，我该怎么做呢

如果有人能帮忙，非常感谢你的时间代码如下

视图没有加载

   - (void)viewDidLoad
 {
[super viewDidLoad];

// Set Title
self.title = @"Authors";



    dispatch_async(dispatch_get_main_queue(), ^{
        // Update the UI

        NSURL *blogURL = [NSURL URLWithString:@"http://www.how-e.co.uk/test.json"];

        NSLog(@"BLOG URL > %@", blogURL);

        NSData *jsonData = [NSData dataWithContentsOfURL:blogURL];

        NSLog(@"JSONDATA > %@", jsonData);

        NSError *error = nil;

        NSDictionary *dataDictionary = [NSJSONSerialization JSONObjectWithData:jsonData options:0 error:&error];

        NSLog(@"JSONDATA > %@", jsonData);


        self.authors = [dataDictionary objectForKey:@"Root"];


        self.searchResults = [NSMutableArray arrayWithCapacity:[authors count]];

        [self.tableView reloadData];

    });

链接到下一个表视图

  - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
// Initialize Books View Controller
MTBooksViewController *booksViewController = [[MTBooksViewController alloc] init];
if(tableView == self.searchDisplayController.searchResultsTableView) {
// Fetch and Set Author
NSDictionary *search = [searchResults objectAtIndex:[indexPath row]];
[booksViewController setAuthor:[search objectForKey:@"name"]];
}else {
    NSDictionary *author = [authors objectAtIndex:[indexPath row]];
   [booksViewController setAuthor:[author objectForKey:@"name"]];
}
// Push View Controller onto Navigation Stack
[self.navigationController pushViewController:booksViewController animated:YES];

}

第二桌

-(void)connect{
NSURL *blogURL = [NSURL URLWithString:@"http://www.how-e.co.uk/test.json"];

NSData *jsonData = [NSData dataWithContentsOfURL:blogURL];

NSError *error = nil;

NSDictionary *dataDictionary = [NSJSONSerialization JSONObjectWithData:jsonData options:0 error:&error];

// Update the UI
NSArray *authors = [dataDictionary objectForKey:@"Root"];


//NSString *filePath = [[NSBundle mainBundle] pathForResource:@"Books" ofType:@"plist"];
//NSArray *authors = [NSArray arrayWithContentsOfFile:filePath];


for (int i = 0; i < [authors count]; i++) {

    NSDictionary *authorDictionary = [authors objectAtIndex:i];
    NSString *tempAuthor = [authorDictionary objectForKey:@"name"];

    if ([tempAuthor isEqualToString:_author]) {

        self.books = [authorDictionary objectForKey:@"Books"];
    }

}

---

为什么要在第二个表中再次解析词典。创建自定义初始值设定项，如

第二页.h

  @property (nonatomic ,retain) NSMutableArray *searchResultarray;
 -(id)initWithSearchResults:(NSMutableArray*)searchResult;

并将接收到的数组用作中表的数据源

第二页

@sythesize searchResultarray= _searchResultarray;
    -(id)initWithSearchResults:(NSMutableArray*)searchResult
{
 if (self = [super init])
{
    _searchResultarray= search;
}
}

#pragma mark -
 #pragma mark Table View Data Source Methods
 - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
 }

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

---

在第二个视图控制器中声明NSDictionary属性，并按如下方式从第一个视图传递NSDictionary：

  - (void)viewDidLoad
 {
[super viewDidLoad];

// Set Title
self.title = @"Authors";



    dispatch_async(dispatch_get_main_queue(), ^{
        // Update the UI

        NSURL *blogURL = [NSURL URLWithString:@"http://www.how-e.co.uk/test.json"];

        NSLog(@"BLOG URL > %@", blogURL);

        NSData *jsonData = [NSData dataWithContentsOfURL:blogURL];

        NSLog(@"JSONDATA > %@", jsonData);

        NSError *error = nil;

        NSDictionary *dataDictionary = [NSJSONSerialization JSONObjectWithData:jsonData options:0 error:&error];

//Here pass the data to the NSDictionary of the secondViewController
secondViewController.sameDataDictionary = [[NSMutableDictionary alloc]initWithDictionary:dataDictionary];

        NSLog(@"JSONDATA > %@", jsonData);


        self.authors = [dataDictionary objectForKey:@"Root"];


        self.searchResults = [NSMutableArray arrayWithCapacity:[authors count]];

        [self.tableView reloadData];

    });

---

尝试将其添加到第二个.h@property NSDictionary*sameDataDictionary；但它在第一位表示secondViewController.sameDataDictionary=[[NSMutableDictionary alloc]initWithDictionary:dataDictionary]；也就是说，在对象类型上找不到sameDataDictionary将导入“Second.h”添加到第一个view.m文件。我现在没有收到任何错误，但我没有得到任何结果，nslog结果为null，有什么建议吗？您在secondViewController中声明了属性吗<代码>@property（强，非原子）NSDictionary*sameDictionary我有

MTBooksViewController*booksViewController；BookViewController.sameDataDictionary=[[NSDictionary alloc]initWithDictionary:dataDictionary]@property（强，非原子）NSDictionary*sameDataDictionary@synthesis sameDataDictionary；-（void）viewDidLoad{[super viewDidLoad]；//更新UI NSLog（@“JSONDATA>%@”，self.sameDataDictionary）；}

非常抱歉，感谢您的帮助@Nikos M

  - (void)viewDidLoad
 {
[super viewDidLoad];

// Set Title
self.title = @"Authors";



    dispatch_async(dispatch_get_main_queue(), ^{
        // Update the UI

        NSURL *blogURL = [NSURL URLWithString:@"http://www.how-e.co.uk/test.json"];

        NSLog(@"BLOG URL > %@", blogURL);

        NSData *jsonData = [NSData dataWithContentsOfURL:blogURL];

        NSLog(@"JSONDATA > %@", jsonData);

        NSError *error = nil;

        NSDictionary *dataDictionary = [NSJSONSerialization JSONObjectWithData:jsonData options:0 error:&error];

//Here pass the data to the NSDictionary of the secondViewController
secondViewController.sameDataDictionary = [[NSMutableDictionary alloc]initWithDictionary:dataDictionary];

        NSLog(@"JSONDATA > %@", jsonData);


        self.authors = [dataDictionary objectForKey:@"Root"];


        self.searchResults = [NSMutableArray arrayWithCapacity:[authors count]];

        [self.tableView reloadData];

    });