How to launch Apple Maps from iOS app

Hi Readers!

Below is the code to launch the Apple Maps application and display the directions between 2 points on Map.

Example 1: Display directions

1. MKPlacemark *placemark = [[MKPlacemark alloc] initWithCoordinate:CLLocationCoordinate2DMake(42.313432,-71.057157) addressDictionary:nil];
2.   MKMapItem *item = [[MKMapItem alloc] initWithPlacemark:placemark];
3.   item.name = @"Boston";
4.  
5.   MKPlacemark *placemark1 = [[MKPlacemark alloc] initWithCoordinate:CLLocationCoordinate2DMake(35.843871,-78.645056) addressDictionary:nil];
6.   MKMapItem *item1 = [[MKMapItem alloc] initWithPlacemark:placemark1];
7.   item1.name = @"Raleigh";

Read full Blog Here>> How to launch Apple Maps from iOS app

How to get sub strings from a string using Regular Expression

Hi, The below code is to get sub-strings from a string. You are going to love this below code which is very simple but very effective. I have used regular expression to get the sub strings.

NSString *strTest = @"Hii how are you doing @Ravi , how do u do @Kiran  where are you @Varun";
NSError *error;  
NSRegularExpression *exp =[NSRegularExpression regularExpressionWithPattern:@"@[^ ]*" options:NSRegularExpressionCaseInsensitive error:&error];
NSArray *s1= [exp matchesInString:strTest options:NSMatchingReportCompletion range:NSMakeRange(0, [strTest length]) ];
    [s1 enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
        NSTextCheckingResult *result = obj;
        NSString *str = [strTest substringWithRange:result.range];
        NSLog(@"str %@",str);

    }];

For such more Blogs you can visit to http://findnerd.com/NerdDigest