我正在使用 NSUrlConnection 转到 .ashx 文件以执行 MYSQL 语句并返回结果。然后放在桌子上。
在这个特定的一个中，我得到了类别，这一切都很好，并且得到了它应该得到的细节，但是在 connectionDidFinishLoading 函数之后没有其他任何事情发生。
我在它之后和其中的任何地方都放置了断点，但什么也没发生，它只是在它进入桌子之前结束。
以下是我的代码，如果您需要我错过的任何信息，请询问。
.h 文件
#import <UIKit/UIKit.h>
@interface Category_TableView : UIViewController <NSURLConnectionDelegate>
{
sqlite3 *database;
}
@property (retain, nonatomic) NSMutableArray *Category_Array;
@property (strong, nonatomic) IBOutlet UITableView *Category_Table;
@property (retain, nonatomic) NSString *type;
@property (retain, nonatomic) NSString *Category;
@property (retain, nonatomic) NSMutableData *CatData;
@end
.m 文件
#import "Category_TableView.h"
#import "Cateogry_Cell.h"
#import "JobList_Table.h"
#import "JobList_Cell.h"
#import <QuartzCore/QuartzCore.h>
@interface Category_TableView ()
@end
@implementation Category_TableView
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
self.navigationController.navigationBar.hidden = YES;
// Do any additional setup after loading the view.
NSString *requestURL = [NSString stringWithFormat:@"http://"URL"/forms/AppForms/app_latest.ashx"];
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString: requestURL]];
NSURLConnection *con =[[NSURLConnection alloc] initWithRequest:request delegate:self];
if(con)
{
self.CatData = [[NSMutableData alloc] init];
self.Category_Array = [[NSMutableArray alloc] init];
}
else
{
[[[UIAlertView alloc] initWithTitle:@"Error" message:@"Failed to get connection. Please try again later" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles: nil] show];
}
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
[self.CatData setLength:0];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
[self.CatData appendData:data];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
[[[UIAlertView alloc] initWithTitle:@"Error" message:@"Failed to get connection. Please try again later" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles: nil] show];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSString *temp = [[NSString alloc] initWithData:self.CatData encoding:NSUTF8StringEncoding];
NSArray *jobs = [temp componentsSeparatedByString:@"||||"];
NSMutableDictionary *temp_dict = [[NSMutableDictionary alloc] init];
NSArray *jobInfo = [[NSArray alloc] init];
int count = 0;
for(int i = 1; i < [jobs count]; i++)
{
jobInfo = [[jobs objectAtIndex:i] componentsSeparatedByString:@"||"];
@try {
temp_dict = [[NSMutableDictionary alloc]init];
[temp_dict setObject:[jobInfo objectAtIndex:0] forKey:@"Category"];
[self.Category_Array addObject:temp_dict];
count++;
}
@catch (NSException *exception) {
[[[UIAlertView alloc] initWithTitle:@"Exception Thrown" message:exception.reason delegate:nil cancelButtonTitle:@"OK" otherButtonTitles: nil] show];
}
}
}
//#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
// Return the number of rows in the section.
return [self.Category_Array count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = @"Cateogry_Cell";
Cateogry_Cell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
// Configure the cell...
[[[UIAlertView alloc] initWithTitle:@"In Table Function" message:@"Failed to try again later" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles: nil] show];
if(cell == nil) {
cell = [[Cateogry_Cell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"Cateogry_Cell"];
}
NSDictionary *temp = [self.Category_Array objectAtIndex:[indexPath row]];
cell.Category_Cell_Label.text = [temp objectForKey:@"Category"];
return cell;
}
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([[segue identifier] isEqualToString:@"Cat_Cell_Push"])
{
JobList_Table *DetailController = [segue destinationViewController];
NSIndexPath *MyIndexPath = [_Category_Table indexPathForSelectedRow];
int row = [MyIndexPath row];
DetailController.JobList_Array = @[_Category_Array[row]];
}
}
@end