iOS - Code JSON ใช้ดึงฐานข้อมูลจากเซิฟเว่อร์ แล้วโชว์เป็น List รายงาน ที่จะส่งลิ้งไปหน้ารายละเอียด

#import <UIKit/UIKit.h>

@interface WatluangViewController : UIViewController <UITableViewDataSource,UITableViewDelegate>
{
    IBOutlet UITableView *myTable;
}
@property (nonatomic, assign) NSMutableData *receivedData;
@end

#import "WatluangViewController.h"

#import "DetailWatluangViewController.h"

@interface WatluangViewController ()
@end

@implementation WatluangViewController
{
    NSMutableArray *myObject;
    
    // A dictionary object
    NSDictionary *dict;
    
    // Define keys
    NSString *TempleID;
    NSString *TypeID;
    NSString *TempleName;
    NSString *TempleDescription;
    NSString *Latitude;
    NSString *Longitude;
    NSString *TemplePic;
    
    UIAlertView *loading;
}
@synthesize receivedData;


- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    
    // Define keys
    TempleID = @"TempleID";
    TypeID = @"TypeID";
    TempleName = @"TempleName";
    TempleDescription = @"TempleDescription";
    Latitude = @"Latitude";
    Longitude = @"Longitude";
    TemplePic = @"TemplePic";
    
    [UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
    
    // Create array to hold dictionaries
    myObject = [[NSMutableArray alloc] init];
    
    
    NSURLRequest *theRequest =
    [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://www.waiphainayutthaya.com/Watluang.php"]
                     cachePolicy:NSURLRequestReloadIgnoringLocalCacheData
                 timeoutInterval:10.0];
    
    NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:theRequest delegate:self];
    
    if (theConnection) {
        self.receivedData = [[NSMutableData data] retain];
       // UIAlertView *connectMessage = [[UIAlertView alloc] initWithTitle:@"NSURLConnection "
       //     message:@"คอนเน็กได้แล้ว" delegate: self cancelButtonTitle:@"Ok" otherButtonTitles: nil];
       // [connectMessage show];
       // [connectMessage release];
    } else {
		UIAlertView *connectFailMessage = [[UIAlertView alloc] initWithTitle:@"NSURLConnection " message:@"คอนเน็กล้มเหลว"  delegate: self cancelButtonTitle:@"Ok" otherButtonTitles: nil];
		[connectFailMessage show];
		[connectFailMessage release];
    }
    // Loading Show Alert View...
    loading = [[UIAlertView alloc] initWithTitle:@"" message:@"Please Wait..." delegate:nil cancelButtonTitle:nil otherButtonTitles:nil];
    UIActivityIndicatorView *progress= [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(125, 50, 30, 30)];
    progress.activityIndicatorViewStyle = UIActivityIndicatorViewStyleWhiteLarge;
    [loading addSubview:progress];
    [progress startAnimating];
    [progress release];
    [loading show];
    
}

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
    [receivedData setLength:0];
}

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data
{
    [receivedData appendData:data];
}

- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
    
    [connection release];
    [receivedData release];
    
    // inform the user
    UIAlertView *didFailWithErrorMessage = [[UIAlertView alloc] initWithTitle: @"NSURLConnection " message: @"didFailWithError"  delegate: self cancelButtonTitle: @"Ok" otherButtonTitles: nil];
    [didFailWithErrorMessage show];
    [didFailWithErrorMessage release];
	
    //inform the user
    NSLog(@"Connection failed! Error - %@", [error localizedDescription]);
    
}

- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
    
    if(receivedData)
    {
        [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
        [loading dismissWithClickedButtonIndex:0 animated:YES];
        
        id jsonObjects = [NSJSONSerialization JSONObjectWithData:receivedData options:NSJSONReadingMutableContainers error:nil];
        
        // values in foreach loop
        for (NSDictionary *dataDict in jsonObjects) {
            NSString *strTempleID = [dataDict objectForKey:@"TempleID"];
            NSString *strTypeID = [dataDict objectForKey:@"TypeID"];
            NSString *strTempleName = [dataDict objectForKey:@"TempleName"];
            NSString *strTempleDescription = [dataDict objectForKey:@"TempleDescription"];
            NSString *strLatitude = [dataDict objectForKey:@"Latitude"];
            NSString *strLongitude = [dataDict objectForKey:@"Longitude"];
            NSString *strTemplePic = [dataDict objectForKey:@"TemplePic"];
            
            dict = [NSDictionary dictionaryWithObjectsAndKeys:
                    strTempleID, TempleID,
                    strTypeID, TypeID,
                    strTempleName, TempleName,
                    strTempleDescription, TempleDescription,
                    strLatitude, Latitude,
                    strLongitude, Longitude,
                    strTemplePic, TemplePic,
                    nil];
            [myObject addObject:dict];
        }
        
        [myTable reloadData];
    }
    
    
    // release the connection, and the data object
    [connection release];
    [receivedData release];
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    // Return the number of sections.
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    
    int nbCount = [myObject count];
    if (nbCount == 0)
        return 1;
    else
        return [myObject count];
    
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    
    int nbCount = [myObject count];
    
    static NSString *CellIdentifier = @"Cell";
    
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        // Use the default cell style.
        cell = [[[UITableViewCell alloc] initWithStyle : UITableViewCellStyleSubtitle
                                       reuseIdentifier : CellIdentifier] autorelease];
           }
    
           if (nbCount ==0){
               cell.textLabel.text = @"Loading Data";
           }
           else
           {
               
        NSDictionary *tmpDict = [myObject objectAtIndex:indexPath.row];
        
        NSURL *url = [NSURL URLWithString:[tmpDict objectForKey:TemplePic]];
        NSData *data = [NSData dataWithContentsOfURL:url];
        UIImage *img = [[UIImage alloc] initWithData:data];
        cell.imageView.image = img;
        
        cell.textLabel.text = [tmpDict objectForKey:TempleName];
        cell.detailTextLabel.text= [tmpDict objectForKey:TempleDescription];
               
     /*   UIAlertView *nsDict = [[UIAlertView alloc] initWithTitle:@"NSURLConnection "
            message:@"nsDict" delegate: self cancelButtonTitle:@"Ok" otherButtonTitles: nil];
               [nsDict show];
               [nsDict release]; */
           }
               return cell;
    
}

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    
    if ([[segue identifier] isEqualToString:@"showDetail"]) {
        
        NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
        
        NSDictionary *tmpDict = [myObject objectAtIndex:indexPath.row];
        
        [[segue destinationViewController] setTemplePicItem:[tmpDict objectForKey:TemplePic]];
        [[segue destinationViewController] setTempleNameItem:[tmpDict objectForKey:TempleName]];
        [[segue destinationViewController] setTempleDescriptionItem:[tmpDict objectForKey:TempleDescription]];
    }
    
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

- (void)dealloc {
    [myTable release];
    [super dealloc];
}
@end