StackOverflow2013

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16458007
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2013-05-09T08:57:09.803
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2013-05-10T08:49:34.257
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2013-05-10T08:49:34.257
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Your Code : <pre><code>NSString *url = [NSString stringWithFormat:@"http://maps.googleapis.com/maps/api/directions/json?origin=%@&destination=%f,%f&sensor=false",startPoint,midannotation.coordinate.latitude,midannotation.coordinate.longitude]; NSURL *googleRequestURL=[NSURL URLWithString:url]; dispatch_async(kBgQueue, ^{ NSData* data = [NSData dataWithContentsOfURL: googleRequestURL]; NSString *someString = [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding]; // NSLog(@"data:%@",someString); NSError* error; NSMutableDictionary* parsedJson = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error]; NSArray *allkeys = [parsedJson allKeys]; for(int i = 0; i < allkeys.count; i++){ if([[allkeys objectAtIndex:i] isEqualToString:@"routes"]){ arr = [parsedJson objectForKey:@"routes"]; dic = [arr objectAtIndex:0]; // NSLog(@"ALL KEYS FROM ROUTE: %@", [dic allKeys]); legs = [dic objectForKey:@"legs"]; // NSLog(@"legs array count %d", legs.count); for(int i = 0; i < legs.count; i++){ stepsArr = [[legs objectAtIndex:i] objectForKey:@"steps"]; for (int i = 0; i < stepsArr.count; i++) { NSLog(@"HTML INSTRUCTION %@", [[stepsArr objectAtIndex:i] objectForKey:@"html_instructions"]); NSLog(@"############################"); NSMutableArray *detail=[[stepsArr objectAtIndex:i] objectForKey:@"html_instructions"] ; } } } } }); </code></pre> first you go to your .h file --> <pre><code>@property (nonatomic, strong) NSMutableArray * detailsArray; </code></pre> In .m file --> <pre><code>@synthesize detailsArray; </code></pre> replace this code <pre><code>NSMutableArray *detail=[[stepsArr objectAtIndex:i] objectForKey:@"html_instructions"] ; </code></pre> by this --> <pre><code>self.detailsArray = [[stepsArr objectAtIndex:i] objectForKey:@"html_instructions"]; # using table datasource methods - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [self.detailsArray count]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; } cell.titleLabel.text = [self.detailsArray objectAtIndex: indexPath.row ]; return cell; } </code></pre> } //Note Please set the delegate method of table , if you write the code programmatically means <code>tableView.delgate = self;</code> Use this : <pre><code>self.detaisArray = [[NSMutableArray alloc] init]; // Do any additional setup after loading the view, typically from a nib. NSString *url = [NSString stringWithFormat:@"http://maps.googleapis.com/maps/api/directions/json?origin=%@&destination=%f,%f&sensor=false",startPoint,midannotation.coordinate.latitude,midannotation.coordinate.longitude]; NSURL *googleRequestURL=[NSURL URLWithString:url]; dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ NSData* data = [NSData dataWithContentsOfURL: googleRequestURL]; NSString *someString = [[NSString alloc] initWithData:data encoding:NSASCIIStringEncoding]; // NSLog(@"data:%@",someString); NSError* error; NSMutableDictionary* parsedJson = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error]; NSArray *allkeys = [parsedJson allKeys]; for(int i = 0; i < allkeys.count; i++){ if([[allkeys objectAtIndex:i] isEqualToString:@"routes"]){ NSArray *arr = [parsedJson objectForKey:@"routes"]; NSDictionary *dic = [arr objectAtIndex:0]; // NSLog(@"ALL KEYS FROM ROUTE: %@", [dic allKeys]); NSArray *legs = [dic objectForKey:@"legs"]; // NSLog(@"legs array count %d", legs.count); for(int i = 0; i < legs.count; i++){ NSArray *stepsArr = [[legs objectAtIndex:i] objectForKey:@"steps"]; for (int i = 0; i < stepsArr.count; i++) { NSLog(@"HTML INSTRUCTION %@", [[stepsArr objectAtIndex:i] objectForKey:@"html_instructions"]); NSLog(@"############################"); [self.detaisArray addObject:[[stepsArr objectAtIndex:i] objectForKey:@"html_instructions"] ]; if(i == legs.count-1){ self.myTableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 20, 320, 400) style:UITableViewStylePlain]; self.myTableView.delegate = self; self.myTableView.dataSource = self; [self.view addSubview:self.myTableView]; } } } } } }); </code></pre>
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