I am having trouble showing pins on a map loading coordinates, title and subtitle from parse.com.
Here is my code. Is there any logical wrong? I get only the third row in the db showing, instead of all five that I have at the parse.com.
for(int i = 0; i<objects.count; i++)
{
int raknare = 1;
raknare++;
PFObject *tempObject = [kundUppgifter objectAtIndex:raknare];
PFGeoPoint *geoPoint = [tempObject objectForKey:#"CLAT"];
PFGeoPoint *geoPoint2 = (PFGeoPoint *)geoPoint;
NSString *cname = #"CNAME";
NSString *ctown = #"CTOWN";
kundUppgifter = [[NSArray alloc] initWithArray:objects];
objects = [NSArray arrayWithObjects:cname,ctown,geoPoint,nil];
NSMutableArray * locations = [[NSMutableArray alloc]init];
Annotation * myAnn;
myAnn = [[Annotation alloc]init];
CLLocationCoordinate2D location;
double longitude;
double latitude;
latitude = geoPoint2.latitude;
longitude = geoPoint2.longitude;
location.latitude = latitude;
location.longitude = longitude;
geoPoint.latitude = latitude;
geoPoint.longitude = longitude;
myAnn.coordinate = location;
myAnn.title = [tempObject objectForKey:#"CNAME"];
myAnn.subtitle = [tempObject objectForKey:#"CTOWN"];
[locations addObject:myAnn];
[self.myMapView addAnnotations:locations];
NSLog(#"geopoint is a pfobject with latitude %f, and longitude %f kundnamn %#,stad %#,", latitude, longitude, cname, ctown);
NSLog(#"%#", cname);
NSLog(#"%#", objects);
}
}
}];
Happy if you can help!
for(int i = 0; i<objects.count; i++)
{
int raknare = 1;
raknare++;
PFObject *tempObject = [kundUppgifter objectAtIndex:raknare];
}
This code inside of your loop will make raknare == 2 every iteration of the loop. You want to use the i variable you set to pull from -objectAtIndex: like this
for(int i = 0; i<objects.count; i++)
{
// This gives you a different object each iteration of the loop
PFObject *tempObject = [kundUppgifter objectAtIndex:i];
}
Related
I have a MapView in which I would like to add annotations and a route from defined coordinates that I add from a Textfield and store in an NSMutableArray.
Now I'm able to show the route from multiple coordinates but only when I insert them in my code as follow :
-(void)loadMap{
int Coordinates;
//MAP
CLLocationCoordinate2D coordinateArray[Coordinates];
coordinateArray[0] = CLLocationCoordinate2DMake(LatA, LongA);
coordinateArray[1] = CLLocationCoordinate2DMake(LatB, LongB);
coordinateArray[2] = CLLocationCoordinate2DMake(LatC, LongC);
coordinateArray[3] = CLLocationCoordinate2DMake(LatD, LongD);
self.routeLine = [MKPolyline polylineWithCoordinates:coordinateArray count:Coordinates];
[MapViewHome setVisibleMapRect:[self.routeLine boundingMapRect]]; //If you want the route to be visible
[MapViewHome addOverlay:self.routeLine];
MapViewHome.mapType = MKMapTypeHybrid;
[self zoomToFitMapAnnotations:MapViewHome];
}
To Add Annotations I do this:
-(MKOverlayView *)mapView:(MKMapView *)mapView viewForOverlay:(id<MKOverlay>)overlay
{
if(overlay == self.routeLine)
{
if(nil == self.routeLineView)
{
self.routeLineView = [[MKPolylineView alloc] initWithPolyline:self.routeLine];
self.routeLineView.fillColor = [UIColor purpleColor];
self.routeLineView.strokeColor = [UIColor purpleColor];
self.routeLineView.lineWidth = 5;
}
return self.routeLineView;
}
return nil;
}
-(void)AddAnotations{
DeparturePoint = [[MKPointAnnotation alloc] init];
DeparturePoint.coordinate = CLLocationCoordinate2DMake(LatA, LongA);
DeparturePoint.title = [NSString stringWithFormat:#"A"];
[MapViewHome addAnnotation:DeparturePoint];
ArrivalPoint = [[MKPointAnnotation alloc] init];
ArrivalPoint.coordinate = CLLocationCoordinate2DMake(LatB, LongB);
ArrivalPoint.title = [NSString stringWithFormat:#"B"];
[MapViewHome addAnnotation:ArrivalPoint];
C = [[MKPointAnnotation alloc] init];
C.coordinate = CLLocationCoordinate2DMake(LatC, LongC);
C.title = [NSString stringWithFormat:#"C"];
[MapViewHome addAnnotation:C];
D = [[MKPointAnnotation alloc] init];
D.coordinate = CLLocationCoordinate2DMake(LatD, LongD);
D.title = [NSString stringWithFormat:#"D"];
[MapViewHome addAnnotation:D];
}
NOW I would like to get Insert my Dynamic NSMutableArray in the LoadMap function in order to refresh the mapView and get a longer Route ! Any Idea ?
Here's the first solution I could think of...
First we wrap the CLLocationCoordinate2D into an object. For this I've made a wrapper class called KBLocationWrapper. Here's the interface:
#interface KBLocationWrapper : NSObject
#property (nonatomic, assign) CLLocationCoordinate2D coordinate;
#end
Next generate the NSMutableArray ...
NSMutableArray *locationCoordinatesArray = [NSMutableArray array];
Then add each coordinate to the array via the object wrapper...
KBLocationWrapper *locationWrapper = [[KBLocationWrapper alloc] init];
locationWrapper.coordinate = CLLocationCoordinate2DMake(latitude, longitude);
[locationCoordinatesArray addObject:locationWrapper];
Finally, figure out how you're going to get the locationCoordinatesArray into the -loadMap method, and then loop through each object and map the coordinate property to its respective place in coordinateArray... (I would write a separate method for this functionality, but for demonstration purposes it's going straight into -loadMap)
-(void)loadMap{
....
int Coordinates = (int)[locationCoordinatesArray count];
CLLocationCoordinate2D coordinateArray[Coordinates];
// loop through coordinates
for (int i = 0; i < Coordinates; ++i) {
// write data from the CLLocationCoordinate2D stored in the wrapper
// to the primitive data array 'coordinateArray'
coordinateArray[i] = [locationCoordinatesArray[i] coordinate];
}
// then generate the routeLine.
self.routeLine = [MKPolyline polylineWithCoordinates:coordinateArray count:Coordinates];
...
}
I add an object to NSMutableArray "NSLat" when i Unwind from another ViewController:
- (IBAction)UnwindPoiint:(UIStoryboardSegue *)segue {
float latitude;
float longitude;
NSString*PointName;
NSString*coordinates;
AddPointViewController *messageViewController = segue.sourceViewController;
PointName = messageViewController.PointBack;
latitude = [messageViewController.PointLatitude floatValue];
longitude = [messageViewController.PointLongitude floatValue];
KBLocationWrapper *locationWrapper = [[KBLocationWrapper alloc] init];
locationWrapper.coordinate = CLLocationCoordinate2DMake(latitude, longitude);
[NSLat addObject:locationWrapper];
coordinates = [NSString stringWithFormat:#"%f,%f,%#",latitude,longitude,PointName];
// [NSLat addObject:coordinates];
[self AddAnotations];
[self loadMap];
[FlightLogTable reloadData];
NSLog(#"%#",coordinates);
NSLog(#"%lu",(unsigned long)NSLat.count);
}
And I add Annotations & load Map as filed :
-(void)AddAnotations{
for(int idx = 0; idx < NSLat.count; idx++)
{
// break the string down even further to latitude and longitude fields.
NSString* currentPointString = [NSLat objectAtIndex:idx];
NSArray* latLonArr = [currentPointString componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:#","]];
CLLocationDegrees latitude = [[latLonArr objectAtIndex:0] doubleValue];
CLLocationDegrees longitude = [[latLonArr objectAtIndex:1] doubleValue];
NSString*Name = [NSString stringWithFormat:#"%#",[latLonArr objectAtIndex:2]];
DeparturePoint = [[MKPointAnnotation alloc] init];
DeparturePoint.coordinate = CLLocationCoordinate2DMake(latitude, longitude);
DeparturePoint.title = Name;
[MapViewHome addAnnotation:DeparturePoint];
}
[self loadMap];
}
-(void)zoomToFitMapAnnotations:(MKMapView*)mapView
{
if([mapView.annotations count] == 0)
return;
CLLocationCoordinate2D topLeftCoord;
topLeftCoord.latitude = -90;
topLeftCoord.longitude = 180;
CLLocationCoordinate2D bottomRightCoord;
bottomRightCoord.latitude = 90;
bottomRightCoord.longitude = -180;
for(MKPointAnnotation*annotation in MapViewHome.annotations)
{
topLeftCoord.longitude = fmin(topLeftCoord.longitude, annotation.coordinate.longitude);
topLeftCoord.latitude = fmax(topLeftCoord.latitude, annotation.coordinate.latitude);
bottomRightCoord.longitude = fmax(bottomRightCoord.longitude, annotation.coordinate.longitude);
bottomRightCoord.latitude = fmin(bottomRightCoord.latitude, annotation.coordinate.latitude);
}
MKCoordinateRegion region;
region.center.latitude = topLeftCoord.latitude - (topLeftCoord.latitude - bottomRightCoord.latitude) * 0.5;
region.center.longitude = topLeftCoord.longitude + (bottomRightCoord.longitude - topLeftCoord.longitude) * 0.5;
region.span.latitudeDelta = fabs(topLeftCoord.latitude - bottomRightCoord.latitude) * 2; // Add a little extra space on the sides
region.span.longitudeDelta = fabs(bottomRightCoord.longitude - topLeftCoord.longitude) * 2; // Add a little extra space on the sides
region = [mapView regionThatFits:region];
[MapViewHome setRegion:region animated:YES];
}
-(void)loadMap{
int Coordinates = (int)[NSLat count];
CLLocationCoordinate2D coordinateArray[Coordinates];
// loop through coordinates
for (int i = 0; i < Coordinates; ++i) {
// write data from the CLLocationCoordinate2D stored in the wrapper
// to the primitive data array 'coordinateArray'
coordinateArray[i] = [NSLat[i] coordinate];
}
// then generate the routeLine.
self.routeLine = [MKPolyline polylineWithCoordinates:coordinateArray count:Coordinates];
[MapViewHome setVisibleMapRect:[self.routeLine boundingMapRect]]; //If you want the route to be visible
[MapViewHome addOverlay:self.routeLine];
MapViewHome.mapType = MKMapTypeHybrid;
[self zoomToFitMapAnnotations:MapViewHome];
}
I am inserting some annotations that are coming from a json server, but I wanted to check if the annotation is already on the map, if so, does not add it again. For they are being added on each other , have someone help me solve this problem?
my code:
// adiciona produtos ao mapa
- (void)adicionaAnnotationsNoMapa:(id)objetos{
NSMutableArray *annotationsPins = [[NSMutableArray alloc] init];
for (NSDictionary *annotationDeProdutos in objetos) {
CLLocationCoordinate2D location;
AnnotationMap *myAnn;
myAnn = [[AnnotationMap alloc] init];
location.latitude = [[annotationDeProdutos objectForKey:#"latitude"] floatValue];
location.longitude = [[annotationDeProdutos objectForKey:#"longitude"] floatValue];
myAnn.coordinate = location;
myAnn.title = [annotationDeProdutos objectForKey:#"name"];
myAnn.subtitle = [NSString stringWithFormat:#"R$ %#",[annotationDeProdutos objectForKey:#"price"]];
myAnn.categoria = [NSString stringWithFormat:#"%#", [annotationDeProdutos objectForKey:#"id_categoria"]];
myAnn.idProduto = [NSString stringWithFormat:#"%#", [annotationDeProdutos objectForKey:#"id"]];
[annotationsPins addObject:myAnn];
}
[self.mapView addAnnotations:annotationsPins];
}
You can iterate through annotations already on MkMapView and see if they are already there:
NSArray * annotations = [self.mapView.annotations copy];
for (NSDictionary *annotationDeProdutos in objetos)
{
// Check if annotation in annotations are duplicate of annotationDeProdutos.
// You can match using name.
}
Or the other way if you only want to show annotations from single server call:
[self.mapView removeAnnotations: self.mapView.annotations];
// Now add from JSON response.
You can do this for each of your annotations:
if(![self.mapView.annotations containsObject: myAnn]) {
[self.mapView addAnnotations: myAnn];
}
I solved the problem with this code :
// adiciona produtos ao mapa
- (void)adicionaAnnotationsNoMapa:(id)objetos{
NSMutableArray *annotationsPins = [[NSMutableArray alloc] init];
for (NSDictionary *annotationDeProdutos in objetos) {
CLLocationCoordinate2D location;
AnnotationMap *myAnn;
myAnn = [[AnnotationMap alloc] init];
location.latitude = [[annotationDeProdutos objectForKey:#"latitude"] floatValue];
location.longitude = [[annotationDeProdutos objectForKey:#"longitude"] floatValue];
myAnn.coordinate = location;
myAnn.title = [annotationDeProdutos objectForKey:#"name"];
myAnn.subtitle = [NSString stringWithFormat:#"R$ %#",[annotationDeProdutos objectForKey:#"price"]];
myAnn.categoria = [NSString stringWithFormat:#"%#", [annotationDeProdutos objectForKey:#"id_categoria"]];
myAnn.idProduto = [NSString stringWithFormat:#"%#", [annotationDeProdutos objectForKey:#"id"]];
if (self.mapView.annotations.count <1) {
[annotationsPins addObject:myAnn];
} else {
__block NSInteger foundIndex = NSNotFound;
[annotationsPins enumerateObjectsUsingBlock:^(AnnotationMap *annotation, NSUInteger idx, BOOL *stop) {
CLLocation *loc1 = [[CLLocation alloc] initWithLatitude:location.latitude longitude:location.longitude];
CLLocation *loc2 = [[CLLocation alloc] initWithLatitude:annotation.coordinate.latitude longitude:annotation.coordinate.longitude];
if ([loc1 distanceFromLocation:loc2] <= 1.0f) {
foundIndex = idx;
*stop = YES;
}
}];
if (foundIndex != NSNotFound) {
[annotationsPins addObject:myAnn];
}
}
}
[self.mapView addAnnotations:annotationsPins];
}
I'm attempting to get an array of latitude and longitude double values which I have stored in parse.com. I want to be able to convert these back into CLLocationCoordinates which I can then use to create MKPloylines in a custom table view.
However I'm not too sure how I can store an array of CLLocationCoordinates.
Here is my code:
_latitudeArray = [object objectForKey:#"latitude"];
[_parseLatitudeArray addObject:_latitudeArray];
_longitudeArray = [object objectForKey:#"longitude"];
[_parseLongitudeArray addObject:_longitudeArray];
for (int i=0; i < [_parseLatitudeArray count]; i++) {
_latitude = [self.parseLatitudeArray objectAtIndex:i];
_longitude = [self.parseLongitudeArray objectAtIndex:i];
CLLocationCoordinate2D coordinates [[_latitude count]];
for (int i = 0; i < [_latitude count]; i++) {
CLLocationCoordinate2D coordinate;
double latitude = [[_latitude objectAtIndex:i] doubleValue];
double longitude = [[_longitude objectAtIndex:i] doubleValue];
coordinate.latitude = latitude;
coordinate.longitude = longitude;
coordinates[i] = coordinate;
}
[_coordinatesArray addObject:coordinates];
}
NSLog(#"coordinates array = %#", _coordinatesArray);
At first I figured I would be able to do it using [_coordinatesArray addObject:coordinates]; but then realised that would not work!
I may be missing something really basic but any help would be appreciated.
Thanks
EDIT:
property Definitions:
#property NSMutableArray *latitudeArray;
#property NSMutableArray *parseLatitudeArray;
#property NSMutableArray *longitudeArray;
#property NSMutableArray *parseLongitudeArray;
#property NSMutableArray *coordinatesArray;
#property NSArray *latitude;
#property NSArray *longitude;
#property CLLocationCoordinate2D *coordinates;
Instead of creating a C-array of structs, wrap each struct into an object and add it to an NSMutableArray. So after you create coordinate, just:
[coordinatesArray addObject: [NSValue valueWithMKCoordinate:coordinate]];
And to get the value back out:
CLLocationCoordinate2D coordinate;
[coordinatesArray[i] getValue:&coordinate];
So, assuming that self.latitude and self.longitude are NSArrays of NSStrings:
//only property is now
#property (nonatomic, strong) NSArray * locations
-(void) loadCoordinatesFromParse {
NSDictionary * parseData;
//load parseData from Parse here
NSMutableArray * coordinates = [NSMutableArray array];
NSArray * latitudes = [parseData objectForKey:#"latitude"];
NSArray *longitudes = [parseData objectForKey:#"longitude"];
for (int i = 0; i < [latitudes count]; i++) {
double latitude = [latitudes[i] doubleValue];
double longitude = [longitudes[i] doubleValue];
CLLocationCoordinate2D coordinate = CLLocationCoordinate2DMake(latitude, longitude);
[coordinates addObject: [NSValue valueWithMKCoordinate:coordinate]];
}
NSLog(#"coordinates array = %#", coordinates);
self.locations = [NSArray arrayWithArray: coordinates];
}
I am having an array of CLregions and this is my code:
NSArray *_regionArray;
NSArray *_geofences_regions;
... in the ViewDidLoad
_geofences_regions = [self buildGeofenceData];
....
- (NSArray*) buildGeofenceData {
NSString* plistPath = [[NSBundle mainBundle] pathForResource:#"regions" ofType:#"plist"];
_regionArray = [NSArray arrayWithContentsOfFile:plistPath];
NSMutableArray *geofences = [NSMutableArray array];
for(NSDictionary *regionDict in _regionArray) {
CLRegion *region = [self mapDictionaryToRegion:regionDict];
[geofences addObject:region];
}
return [NSArray arrayWithArray:geofences];
}
- (CLRegion*)mapDictionaryToRegion:(NSDictionary*)dictionary {
NSString *title = [dictionary valueForKey:#"title"];
CLLocationDegrees latitude = [[dictionary valueForKey:#"latitude"] doubleValue];
CLLocationDegrees longitude =[[dictionary valueForKey:#"longitude"] doubleValue];
CLLocationCoordinate2D centerCoordinate = CLLocationCoordinate2DMake(latitude, longitude);
CLLocationDistance regionRadius = [[dictionary valueForKey:#"radius"] doubleValue];
return [[CLRegion alloc] initCircularRegionWithCenter:centerCoordinate
radius:regionRadius
identifier:title];
}
In the following code, the property identifier is not found on object of type id.
Why is that? Shouldn't _geofences_regios[i] return a CLRegion?
/*check for region*/
CLLocationCoordinate2D coordinate = [bestLocation coordinate];
for (int i=0; i<[_geofences_regions count]; i++) {
if ([_geofences_regions[i] containsCoordinate:coordinate]) {
[self.delegate locationManager:self regionEntered:_geofences_regions[i].identifier ];
}
}
/end checking for region/
Please answer on the above question, do not suggest me of using other delegate methods like didEnterRegion.
Thanks!
That's because the object returned by the array, by default is of type id that doesn´t have an identifier attribute, you can do a cast to avoid the error:
[self.delegate locationManager:self regionEntered:((CLRegion*)_geofences_regions[i]).identifier ];
Now I loop through one Array at once and calculate distance like this:
- (void)calculateDistance
{
ann = [dict objectForKey:#"Blue"];
for(int i = 0; i < [ann count]; i++) {
NSString *coordinates = [[ann objectAtIndex:i] objectForKey:#"Coordinates"];
double realLatitude = [[[coordinates componentsSeparatedByString:#","] objectAtIndex:1] doubleValue];
double realLongitude = [[[coordinates componentsSeparatedByString:#","] objectAtIndex:0] doubleValue];
// Calculating distance
CLLocation *pinLocation = [[CLLocation alloc]
initWithLatitude:realLatitude
longitude:realLongitude];
CLLocation *userLocation = [[CLLocation alloc]
initWithLatitude:mapView.userLocation.coordinate.latitude
longitude:mapView.userLocation.coordinate.longitude];
CLLocationDistance distance = [pinLocation distanceFromLocation:userLocation];
// Adding distance to dictionaries
if (distance > 1000) {
NSString *dist = [NSString stringWithFormat:#"%.2f km.", distance/1000];
NSMutableDictionary *inDict = [[NSMutableDictionary alloc] init];
inDict = [ann objectAtIndex:i];
[inDict setValue:dist forKey:#"Distance"];
}
else{
NSString *dist = [NSString stringWithFormat:#"%4.0f m.", distance];
NSMutableDictionary *inDict = [[NSMutableDictionary alloc] init];
inDict = [ann objectAtIndex:i];
[inDict setValue:dist forKey:#"Distance"];
}
}
}
My data structure is:
How to loop through all Array's at once? I have Array which contains all my Array's named "resultArray", but this code doesn't work:
ann = [dict objectForKey:resultArray];
NSLog(#"%#", resultArray);
2013-05-05 10:57:03.643 testApp[5708:907] (
Black,
Green,
Orange,
Blue,
Darkblue
)
I guess you want to enumerate through the keys stored in resultArray and calculate the distance and add that calculated values to it.
- (void)calculateDistance
{
//Enumerates through resultArray
for (NSString *key in resultArray) {
//ann array is considered as an instance of NSMutableArray
ann = dict[key];
for(int i = 0; i < [ann count]; i++) {
NSMutableDictionary *inDict = [ann[i] mutableCopy];
NSString *coordinates = inDict[#"Coordinates"];
NSArray *coordinateComponents = [coordinates componentsSeparatedByString:#","];
double realLatitude = [coordinateComponents[1] doubleValue];
double realLongitude = [coordinateComponents[0] doubleValue];
// Calculating distance
CLLocation *pinLocation = [[CLLocation alloc] initWithLatitude:realLatitude
longitude:realLongitude];
CLLocation *userLocation = [[CLLocation alloc]
initWithLatitude:mapView.userLocation.coordinate.latitude
longitude:mapView.userLocation.coordinate.longitude];
CLLocationDistance distance = [pinLocation distanceFromLocation:userLocation];
// Adding distance to dictionaries
if (distance > 1000) {
NSString *dist = [NSString stringWithFormat:#"%.2f km.", distance/1000];
[inDict setValue:dist forKey:#"Distance"];
}
else{
NSString *dist = [NSString stringWithFormat:#"%4.0f m.", distance];
[inDict setValue:dist forKey:#"Distance"];
}
//Inserting the modified values to the main array
[ann replaceObjectAtIndex:i withObject:inDict];
}
}
}
ann = [dict objectForKey:resultArray];
for(NSArray *colourArray in ann)
{
for(NSDictionary *itemDictionary in colourArray)
{
NSLog(#"Coordinates = %#",[itemDictionary objectForKey:#"Coordinates"]);
NSLog(#"Name = %#",[itemDictionary objectForKey:#"Name"]);
NSLog(#"Address = %#",[itemDictionary objectForKey:#"Address"]);
}
}
Hope it will help you .