How to use google Api for find places around me - ios

Question

I am working on app which use Google API. I am trying to find places around me by it. I am using below code for fetch data,
-(void)fetchedData:(NSData *)responseData {
//this is to parse out the json data
NSError *error = nil; //create some error handling here
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:responseData options:kNilOptions error:&error];
//I'm told the returned results from Google will be an array obtained from the NSDictionary object with the key "results"
NSArray *places = [json objectForKey:#"results"];
//display the data to the console for review
NSLog(#" Google data:\n%#", places);
}
But it shows json status = Request Denied.
Any help will appreciated.

Answer 1

Vishal,
You can do it using the following block of Code:
- (void) queryGooglePlaces: (NSString *) googleType
{
NSString *url = [NSString stringWithFormat:#"https://maps.googleapis.com/maps/api/place/search/json?location=%f,%f&radius=%#&types=%#&sensor=true&key=%#&language=%#", appDelegate.currentLatitude, appDelegate.currentLongitude, [radiusValueArray objectAtIndex:[[NSUserDefaults standardUserDefaults] integerForKey:#"selectedDistance"]], googleType, kGOOGLE_API_KEY, appDelegate.selectedLanguageCode];
//Formulate the string as URL object.
NSURL *googleRequestURL=[NSURL URLWithString:url];
// Retrieve the results of the URL.
dispatch_async(kBgQueue, ^{
NSData* data = [NSData dataWithContentsOfURL: googleRequestURL];
if(data == nil)
{
[placeTableView reloadData];
[SVProgressHUD dismiss];
}
else
{
[self performSelectorOnMainThread:#selector(fetchedData:) withObject:data waitUntilDone:YES];
}
});
}
- (void) queryGooglePlaces_WithNextPage
{
// Build the url string we are going to sent to Google. NOTE: The kGOOGLE_API_KEY is a constant which should contain your own API key that you can obtain from Google. See this link for more info:
NSString *url = [NSString stringWithFormat:#"https://maps.googleapis.com/maps/api/place/search/json?pagetoken=%#&location=%f,%f&radius=%#&sensor=true&key=%#", nextPageToken, appDelegate.currentLatitude, appDelegate.currentLongitude, [radiusValueArray objectAtIndex:[[NSUserDefaults standardUserDefaults] integerForKey:#"selectedDistance"]], kGOOGLE_API_KEY];
//Formulate the string as URL object.
NSURL *googleRequestURL=[NSURL URLWithString:url];
// Retrieve the results of the URL.
dispatch_async(kBgQueue, ^{
NSData* data = [NSData dataWithContentsOfURL: googleRequestURL];
if(data == nil)
{
[placeTableView reloadData];
[SVProgressHUD dismiss];
}
else
{
[self performSelectorOnMainThread:#selector(fetchedData:) withObject:data waitUntilDone:YES];
}
});
}
- (void)fetchedData:(NSData *)responseData
{
//parse out the json data
NSError* error;
NSDictionary *json = [NSJSONSerialization
JSONObjectWithData:responseData
options:kNilOptions
error:&error];
//The results from Google will be an array obtained from the NSDictionary object with the key "results".
if(isNextPageAvailable == FALSE)
[appDelegate.placesArray removeAllObjects];
NSArray *placesTemp = [json objectForKey:#"results"];
if([json valueForKey:#"next_page_token"] != nil)
{
nextPageToken = [json valueForKey:#"next_page_token"];
isNextPageAvailable = TRUE;
}
else
{
nextPageToken = #"";
isNextPageAvailable = FALSE;
}
for(int i=0;i<[placesTemp count];i++)
{
NSMutableDictionary *placeDictionary = [[NSMutableDictionary alloc] initWithDictionary:[placesTemp objectAtIndex:i]];
double lat1 = appDelegate.currentLatitude;
double long1 = appDelegate.currentLongitude;
double lat2 = [[[[placeDictionary objectForKey:#"geometry"] objectForKey:#"location"] valueForKey:#"lat"] doubleValue];
double long2 = [[[[placeDictionary objectForKey:#"geometry"] objectForKey:#"location"] valueForKey:#"lng"] doubleValue];
CLLocation *location1 = [[CLLocation alloc] initWithLatitude:lat1 longitude:long1];
CLLocation *location2 = [[CLLocation alloc] initWithLatitude:lat2 longitude:long2];
[placeDictionary setValue:[NSString stringWithFormat:#"%f",[location1 distanceFromLocation:location2]] forKey:#"distance"];
[appDelegate.placesArray addObject:placeDictionary];
}
NSSortDescriptor *sortDescriptor;
sortDescriptor = [[NSSortDescriptor alloc] initWithKey:#"distance" ascending:YES comparator:^NSComparisonResult(id obj1, id obj2) {
if ([obj1 floatValue] < [obj2 floatValue])
return NSOrderedAscending;
else
return NSOrderedDescending;
}];
NSArray *sortedArray = [appDelegate.placesArray sortedArrayUsingDescriptors:[NSArray arrayWithObject:sortDescriptor]];
[appDelegate.placesArray removeAllObjects];
[appDelegate.placesArray addObjectsFromArray:sortedArray];
[self showPoweredbyGoogle];
[placeTableView reloadData];
[SVProgressHUD dismiss];
// [NSTimer scheduledTimerWithTimeInterval:0.001 target:self selector:#selector(reloadTableNow) userInfo:nil repeats:NO];
//Plot the data in the places array onto the map with the plotPostions method.
// [self plotPositions:placesArray];
}
- (void) queryGooglePlaceDetail
{
NSString *url = [NSString stringWithFormat:#"https://maps.googleapis.com/maps/api/place/details/json?reference=%#&sensor=false&key=%#&language=%#", [[appDelegate.placesArray objectAtIndex:selectedPlaceIndex] valueForKey:#"reference"], kGOOGLE_API_KEY, appDelegate.selectedLanguageCode];
//Formulate the string as URL object.
NSURL *googleRequestURL=[NSURL URLWithString:url];
// Retrieve the results of the URL.
dispatch_async(kBgQueue, ^{
NSData* data = [NSData dataWithContentsOfURL: googleRequestURL];
if(data == nil)
{
[SVProgressHUD dismiss];
}
else
{
[self performSelectorOnMainThread:#selector(fetchedDetailPlaceData:) withObject:data waitUntilDone:YES];
}
});
}
- (void)fetchedDetailPlaceData:(NSData *)responseData
{
//parse out the json data
NSError* error;
NSDictionary *json = [NSJSONSerialization
JSONObjectWithData:responseData
options:kNilOptions
error:&error];
NSDictionary *detailTempDic = [[NSMutableDictionary alloc] initWithDictionary:[json objectForKey:#"result"]];
[detailTempDic setValue:[[appDelegate.placesArray objectAtIndex:selectedPlaceIndex] valueForKey:#"distance"] forKey:#"distance"];
[SVProgressHUD dismiss];
[self performSegueWithIdentifier:#"Detail_Place_Push" sender:detailTempDic];
}
Here you have to pass different types of objects from Google Places such as atm, airport, restaurant, bank, hospital, school.
[self queryGooglePlaces:[googlePlaceTypeArray objectAtIndex:SharedManager.selectedPlaceCategoryIndex]];
Thanks,
Best Regards,
Gurprit