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이제 NSRangeException이 무엇인지 압니다. 내가 얻지 못하는 것은 왜 내 코드를 처음 실행했을 때 괜찮습니까?하지만 동일한 코드 (및 변수)가 두 번째로 설정되면 언제 실패할까요? 코드를 밟아도 첫 번째 실행과 다른 점을 볼 수 없습니다.Xcode NSRangeException 두 번째 코드 실행
전체 코드는 내 PHP API (기본적으로 클라이언트 정보, 예약 된 단위, 날짜 등)에서 JSON 값 집합을 가져옵니다.이 코드는 UITableView에 표시하기 만하면 테이블을 이 예약 된 날짜 (애플은 아마도 자신의 jQuery과 확장, 내 의견으로는이 작업을 수행하는 더 좋은 방법이해야합니까?)
내 .H
@interface LTBViewController : UIViewController {
IBOutlet UITableView *mainTableView;
NSArray *tickets; //for storing our serialized JSON
NSMutableData *data; //for appending our JSON as we're getting it
NSString *token; //for security authentication with our custom API
NSMutableArray *days; //for storing any days with bookings retrieved from tickets
NSMutableDictionary *groupedTickets; //for storing tickets to correlate to days
NSArray *filteredArray; //for our finalized output
}
@end
내하는 .m의 대부분 (중요한 부분)
- (void)viewDidAppear:(BOOL)animated
{
[UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"http://myurl.com/api/api.php?api=%@&function=%@", token, @"active"]];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[NSURLConnection connectionWithRequest:request delegate:self];
//[[NSURLConnection alloc] initWithRequest:request delegate:self]; old way of doing it
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
//initialize from our settings file and make sure we're authenticated
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
token = [defaults objectForKey:@"api_token"];
NSLog(@"%@",token);
//initialize our sorting arrays
days = [[NSMutableArray alloc] init];
groupedTickets = [[NSMutableDictionary alloc] init];
filteredArray = [[NSArray alloc] init];
}
- (void)groupTable {
NSUInteger count = 0;
for (LTBViewController *ticket in tickets)
{
NSString *date = [[tickets objectAtIndex:count] objectForKey:@"dateIn"];
if (![days containsObject:date])
{
[days addObject:date];
[groupedTickets setObject:[NSMutableArray arrayWithObject:ticket] forKey:date];
}
else
{
[((NSMutableArray*)[groupedTickets objectForKey:date]) addObject:ticket];
}
count +=1;
}
count = 0;
[mainTableView reloadData];
}
//for when we get a response
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
data = [[NSMutableData alloc] init];
}
//for getting data
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)thedata
{
[data appendData:(thedata)];
}
//for when connection finished
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
tickets = [NSJSONSerialization JSONObjectWithData:data options:NO error:nil];
[UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
[self groupTable]; //starts our grouping methods
}
//for when connection fails
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
UIAlertView *errorView = [[UIAlertView alloc] initWithTitle:@"Error" message:@"Could not connect to server" delegate:nil cancelButtonTitle:@"dismiss" otherButtonTitles:nil, nil];
[errorView show];
}
//overriding the "delete" text for our UITableView
- (NSString *)tableView:(UITableView *)tableView titleForDeleteConfirmationButtonForRowAtIndexPath:(NSIndexPath *)indexPath {
return @"Close Ticket";
}
-(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
NSString *date = [days objectAtIndex:section];
return date;
}
- (int)numberOfSectionsInTableView:(UITableView *)tableView
{
return [days count];
}
- (int)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
NSString *date = [days objectAtIndex:section];
NSLog(@"%@", date);
return [[groupedTickets objectForKey:date] count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"MainCell"];
tableView.layer.cornerRadius = 5.0; //rounds our table corners
if(cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:(UITableViewCellStyleSubtitle) reuseIdentifier:@"MainCell"];
}
//I'm sure theres a better way to do this but it works for now
NSString *date = [days objectAtIndex:[indexPath section]];
NSPredicate *search = [NSPredicate predicateWithFormat:@"dateIn == %@", date];
filteredArray = [tickets filteredArrayUsingPredicate:search];
//이 바로 여기에 항목이 다른 뷰 (확실히 작동) 컨트롤러하지만 다시 버튼에서 눌렀을 때 그것이로 이동을 클릭하면 인덱스 1
cell.textLabel.text = [NSString stringWithFormat:@"%@",[[filteredArray objectAtIndex:[indexPath row]] objectForKey:@"ticketnumber"] ];
cell.detailTextLabel.text = [NSString stringWithFormat:@"%@", [[filteredArray objectAtIndex:[indexPath row]] objectForKey:@"customerName"]];
return cell;
}
에서를 통해 두 번 실패 할 것입니다 이 코드는 실패합니다. 나는 그 이상의 눈을 보며 내 실수를 찾도록 도와주는 추가 세트를 감상하게 될 것입니다. (또는 이것을하는 더 좋은 방법)
고마워!