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我不太擅长编码，我的代码有一个严重的问题，我想将我的 json 数据从一个表显示到另一个表，例如：在第一个表视图中我想显示学生的名字，名字之后是点击后，它将跳转到下一个 tableview 并显示该学生已选择的课程（一个学生可能有多个课程），那么我该怎么做呢？这是第一个 tableview 中的 mycode

- (void)viewDidLoad
{
[super viewDidLoad];

// Uncomment the following line to preserve selection between presentations.
// self.clearsSelectionOnViewWillAppear = NO;

// Uncomment the following line to display an Edit button in the navigation bar for this     view controller.
// self.navigationItem.rightBarButtonItem = self.editButtonItem;
self.navigationItem.Title = @"選擇類別";
//    classify = [[NSArray alloc] initWithObjects: @"時尚類",@"飲食類",@"娛樂類",@"文創類",   nil];
//    NSString *path = [[NSBundle mainBundle] pathForResource:@"DataList" ofType:@"plist"];
//    classify_ = [[NSMutableArray alloc] initWithContentsOfFile : path];
NSURL *url = [NSURL URLWithString:@"http://localhost/store.php"];
NSData *jsonData=[NSData dataWithContentsOfURL:url];
NSError *error = nil;

classify_ = [NSJSONSerialization JSONObjectWithData:jsonData options:
        NSJSONReadingMutableContainers error:&error];

}


- (BOOL)shouldAutorotateToInterfaceOrientation:  (UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

#pragma mark - Table view data source

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

//table cell count
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [self.classify count];
}

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

 cell.textLabel.text = [[self.classify objectAtIndex:indexPath.row]   objectForKey:@"classify"];

return cell;


}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
// Make sure your segue name in storyboard is the same as this line
if ([[segue identifier] isEqualToString:@"Second"])
{
    NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
    //NSManagedObject *object = [[self fetchedResultsController]   objectAtIndexPath:indexPath];
    [[segue destinationViewController] setSecondClassify:[self.classify objectAtIndex:indexPath.row]];
}
}
4

1 回答 1

1

表视图1.m：

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath     *)indexPath
{
    [tableView deselectRowAtIndexPath:indexPath animated:YES];    
}

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    if ([[segue identifier] isEqualToString:@"showDetail"]) {

        NSIndexPath *indexPath = [myTable indexPathForSelectedRow];
        NSDictionary *item = [displayItems objectAtIndex:[indexPath row]];

        [[segue destinationViewController] setDetailItem:item];
    } 
}

表视图2.h：

@property (strong, nonatomic) id detailItem;

表视图2.m：

- (void)setDetailItem:(id)newDetailItem
{
    if (_detailItem != newDetailItem) {
        _detailItem = newDetailItem;

        // Update the view.
        [self configureView];
    }
}

- (void)configureView
{
    if (self.detailItem) {
       itemID = self.detailItem;
       [self getCourse];
    }
}

- (void)getCourse{

      NSString *code = [NSString stringWithFormat:@"user=%@", itemID];
      NSData *postData = [code dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
      NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];
      NSURL *url = [NSURL URLWithString:@"http://localhost/getUser.php"];

      NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
      [request setHTTPMethod:@"POST"];
      [request setValue:postLength forHTTPHeaderField:@"Content-Length"];
      [request setHTTPBody:postData];

      NSURLResponse *response;
      NSError *error;
      NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];

      allCourseArray = [NSJSONSerialization JSONObjectWithData:responseData options:kNilOptions error:&error];

      NSDictionary *item = [allCourseArray objectAtIndex:0];

      NSString *courseName = [item objectForKey:@"courseName"];
      NSString *courseCode = [item objectForKey:@"courseCode"];
}
于 2012-09-04T09:46:01.750 回答