trying to pass text from tableview to a view with a map - ios

Question

I have a UITableView that opens a view with a map, i called Mapa class. I am having problems passing any kind of text information from this table view to the map. I need to send a string text to be the title of my map, and the coordinates of a CLLocation.
Here is part of the code
MyTableView.m:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
instMapa = [[Mapa alloc] initWithNibName:#"Mapa" bundle:nil];
instMapa.mytext = #"pass text to be the title";
[self.navigationController pushViewController:instMapa animated:YES];
}
Mapa.h
#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>
#import <MapKit/MKAnnotation.h>
#class MapViewAnnotation;
#interface Mapa : UIViewController <MKMapViewDelegate> {
IBOutlet MKMapView *mapView;
NSString *stringTitle;
NSString *mytext;
MapViewAnnotation *newAnnotation;
}
#property (nonatomic, retain) IBOutlet MKMapView *mapView;
#property (nonatomic, retain) NSString *stringTitle;
#property (nonatomic, retain) NSString *mytext;
#property (nonatomic, retain) MapViewAnnotation *newAnnotation;
#end
Mapa.m
#import "Mapa.h"
#import "MapViewAnnotation.h"
#implementation Mapa
#synthesize mapView;
#synthesize stringTitle;
#synthesize mytext;
#synthesize newAnnotation;
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
[super viewDidLoad];
CLLocationCoordinate2D location;
location.latitude = (double) 51.501468;
location.longitude = (double) -0.141596;
// Add the annotation to our map view
newAnnotation = [[MapViewAnnotation alloc] initWithTitle:mytext andCoordinate:location];
[self.mapView addAnnotation:newAnnotation];
}
// When a map annotation point is added, zoom to it (1500 range)
- (void)mapView:(MKMapView *)mv didAddAnnotationViews:(NSArray *)views
{
MKAnnotationView *annotationView = [views objectAtIndex:0];
id <MKAnnotation> mp = [annotationView annotation];
MKCoordinateRegion region = MKCoordinateRegionMakeWithDistance([mp coordinate], 1500, 1500);
[mv setRegion:region animated:YES];
[mv selectAnnotation:mp animated:YES];
}
// Received memory warning
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
}
// If the view unloads, release the map view
- (void)viewDidUnload {
}
- (void)dealloc {
[newAnnotation release];
[mytext release];
[stringTitle release];
[mapView release];
[super dealloc];
}
#end
MapViewAnnotation.h
#import <Foundation/Foundation.h>
#import <MapKit/MapKit.h>
#interface MapViewAnnotation : NSObject <MKAnnotation> {
NSString *title;
CLLocationCoordinate2D coordinate;
}
#property (nonatomic, copy) NSString *title;
#property (nonatomic, readonly) CLLocationCoordinate2D coordinate;
- (id)initWithTitle:(NSString *)ttl andCoordinate:(CLLocationCoordinate2D)c2d;
#end
MapViewAnnotation.m
#implementation MapViewAnnotation
#synthesize title, coordinate;
- (id)initWithTitle:(NSString *)ttl andCoordinate:(CLLocationCoordinate2D)c2d {
[super init];
title = ttl;
coordinate = c2d;
return self;
}
- (void)dealloc {
[title release];
[super dealloc];
}
#end
Thanks for the help!

Answer 1

From your question, I understand that; you need to pass the string value of the selected table view cell to your map view.
For that you need to write this code in your didSelectRowAtIndexPath,
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
instMapa.mytext = cell.textLabel.text;