Develop an application to get Map location and send email based on the Contact information.
Project Framework and other dependencies
Project Framework and other dependencies
- MapKit (Embeds Google Map)
- CoreLocation (get location based on latitude and longitude)
- MessageUI (For email functionality)
- AddressBook and AddressBookUI (To access contact information)
- XCode adds three frameworks by default for View Based project (UIKit, Foundation, CoreGraphics)
- Google URL to get latitude and longitude based on Zip code and other address information
It could return results in CSV format of 4 elements, in which 2nd and 3rd elements are latitude and longitude respectively.
NSString *qUrl = [[NSString alloc] initWithFormat : @"http://maps.google.com/maps/geo?output=csv&q=%@", zipCode];
- CoreLocation (get location based on latitude and longitude)
- MessageUI (For email functionality)
- AddressBook and AddressBookUI (To access contact information)
- XCode adds three frameworks by default for View Based project (UIKit, Foundation, CoreGraphics)
- Google URL to get latitude and longitude based on Zip code and other address information
It could return results in CSV format of 4 elements, in which 2nd and 3rd elements are latitude and longitude respectively.
NSString *qUrl = [[NSString alloc] initWithFormat : @"http://maps.google.com/maps/geo?output=csv&q=%@", zipCode];
//CSV format
NSString *qResults = [[NSString alloc] initWithContentsOfURL:[NSURL URLWithString: qUrl] encoding: NSUTF8StringEncoding error:nil];
Latitude and Longitude
Latitude : horizontal lines starts from Equator (North and South) Min, Sec , e.g. 45 Deg N
Longitude : vertical lines starts from Green Meridian (East and West) Min, Sec , e.g. 45 E
The longitude line goes from north pole to south pole.
Project Setup
- Create View Based Project
- XCode will create necessary ViewController header (.h), implementation (.m) and View (.xib) files.
- Update above .h and .m files with below code
ViewController.h
-----------------------
//
// ViewController.h
// MyTomo
//
// Created by santosh on 8/2/12.
// Copyright (c) 2012 __MyCompanyName__. All rights reserved.
//
#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>
#import <AddressBook/AddressBook.h> //by default available
#import <AddressBookUI/AddressBookUI.h>
#import <CoreLocation/CoreLocation.h>
#import <MessageUI/MessageUI.h>
@interface ViewController : UIViewController <ABPeoplePickerNavigationControllerDelegate, MFMailComposeViewControllerDelegate> {
IBOutlet UILabel *name;
IBOutlet UILabel *email;
IBOutlet UILabel *zip;
IBOutlet UIImageView *photo;
IBOutlet MKMapView *map;
MKPlacemark *zipAnnotation;// not outlet , no change, hence no property and synthesize
}
@property (nonatomic, retain) UILabel *name;
@property (nonatomic, retain) UILabel *email;
@property (nonatomic, retain) UILabel *zip;
@property (nonatomic, retain) UIImageView *photo;
@property (nonatomic, retain) MKMapView *map;
-(IBAction)getContactInfo:(id)sender;
-(IBAction)sendEMail:(id)sender;
@end
ViewController.m
-----------------------
//
// ViewController.m
// MyTomo
//
// Created by santosh on 8/2/12.
// Copyright (c) 2012 __MyCompanyName__. All rights reserved.
//
#import "ViewController.h"
@implementation ViewController
@synthesize name;
@synthesize email;
@synthesize zip;
@synthesize photo;
@synthesize map;
- (void) createMap: (NSString *)zipCode showAddress:(NSDictionary *) address {
NSString *qUrl;
NSString *qResults;
NSArray *qData;
double latitude;
double longitude;
MKCoordinateRegion mapRegion; //structure
//send Zip code to Goole to get results in CSV format containing latitude and longitude at 2nd and 3rd place
//latitude = horizontal line starts from Equator (North and South) Min, Sec , e.g. 45 Deg N
//longitude = vertical lines starts from Green Meridian (East and West) Min, Sec , e.g. 45 E
//The longitude line goes from north pole to south pole
qUrl = [[NSString alloc] initWithFormat : @"http://maps.google.com/maps/geo?output=csv&q=%@", zipCode];
//CSV format
qResults = [[NSString alloc] initWithContentsOfURL:[NSURL URLWithString: qUrl]
encoding: NSUTF8StringEncoding
error:nil];
//Break CSV record into Array
qData = [qResults componentsSeparatedByString:@","];
if ([qData count] == 4) {
latitude = [[qData objectAtIndex:2] doubleValue];
longitude = [[qData objectAtIndex:3] doubleValue];
//Create location coordinate in 2D
mapRegion.center.latitude = latitude;
mapRegion.center.longitude = longitude;
[map setRegion:mapRegion animated:YES];
//remove existing annotaion if any
if (zipAnnotation != nil) {
[map removeAnnotation:zipAnnotation];
}
//create annotation
zipAnnotation = [[MKPlacemark alloc] initWithCoordinate:mapRegion.center addressDictionary:address];
[map addAnnotation:zipAnnotation];
[zipAnnotation release];
}
[qUrl release];
[qResults release];
}
//ABPeoplePickerNavigationControllerDelegate method will show details after clicking on person name !
- (BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person {
return YES;
}
//ABPeoplePickerNavigationControllerDelegate method
- (void)peoplePickerNavigationControllerDidCancel:(ABPeoplePickerNavigationController *)peoplePicker {
[self dismissModalViewControllerAnimated:YES];
}
//ABPeoplePickerNavigationControllerDelegate method
- (BOOL)peoplePickerNavigationController: (ABPeoplePickerNavigationController *)peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person
property:(ABPropertyID)property
identifier:(ABMultiValueIdentifier)identifier {
//Name
NSString *tomoName;
tomoName = (NSString *) ABRecordCopyValue(person, kABPersonFirstNameProperty);
name.text = tomoName;
[tomoName release];
//Email
NSString *tomoEmail;
ABMultiValueRef emailAddresses = ABRecordCopyValue(person, kABPersonEmailProperty);
tomoEmail = (NSString *) ABMultiValueCopyValueAtIndex(emailAddresses, 0);
email.text = tomoEmail;
[tomoEmail release];
//Address
ABMultiValueRef streetAddresses = ABRecordCopyValue(person, kABPersonAddressProperty);
NSDictionary* firstAddress;
if(ABMultiValueGetCount(streetAddresses) > 0) {
firstAddress = (NSDictionary *) ABMultiValueCopyValueAtIndex(streetAddresses, 0);
//NSString *street = [firstAddress objectForKey:@"Street"];
//NSString *city = [firstAddress objectForKey:@"City"];
//NSString *country = [firstAddress objectForKey:@"Country"];
zip.text = [firstAddress objectForKey:@"ZIP"];
[self dismissModalViewControllerAnimated:YES];
[self createMap:zip.text showAddress:firstAddress];
} else {
//show alert dialog
UIAlertView *alert = [[UIAlertView alloc]
initWithTitle:@"No Address"
message:@"Address not found in contact info."
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[alert show];
[alert release];
zip.text = @"";
[self dismissModalViewControllerAnimated:YES];
}
//photo
if(ABPersonHasImageData(person)) {
photo.image = [UIImage imageWithData:(NSData *) ABPersonCopyImageData(person)];
}
return NO;
}
-(IBAction)getContactInfo:(id)sender {
ABPeoplePickerNavigationController *picker;
picker = [[ABPeoplePickerNavigationController alloc] init];
picker.peoplePickerDelegate = self;
[self presentModalViewController:picker animated:YES];
[picker release];
}
-(IBAction)sendEMail:(id)sender {
MFMailComposeViewController *mailController = [[MFMailComposeViewController alloc] init];
NSArray *emailAddresses = [[NSArray alloc] initWithObjects: email.text, nil];
mailController.mailComposeDelegate = self;
[mailController setToRecipients: emailAddresses];
[self presentModalViewController:mailController animated:YES];
[mailController release];
[emailAddresses release];
}
//MFMailComposeViewControllerDelegate protocol
- (void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_3_0) {
[self dismissModalViewControllerAnimated:YES];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
}
- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}
-(void) dealloc {
[name release];
[email release];
[zip release];
[photo release];
[map release];
}
@end
ViewController.xib
Connections
- All Relevant Connections between Code and View
- Method Connections
- Similarly do other UI connections
Output
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