调用iPhone的地图、电话、邮件、短信及内容

-(IBAction)openMaps {

    // Where is Apple on the map anyway?

    NSString* addressText = @"1 Infinite Loop, Cupertino, CA 95014";

    // URL encode the spaces

    addressText =  [addressText stringByAddingPercentEscapesUsingEncoding: NSASCIIStringEncoding];    

    NSString* urlText = [NSString stringWithFormat:@"http://maps.google.com/maps?q=%@", addressText];

    // lets throw this text on the log so we can view the url in the event we have an issue

    NSLog(urlText);

    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:urlText]];

}

-(IBAction)openEmail {

    // Fire off an email to apple support

    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"mailto://devprograms@apple.com"]];

}

-(IBAction)openPhone {

    // Call Google 411

    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"tel://8004664411"]];

}

-(IBAction)openSms {

    // Text to Google SMS

    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"sms://466453"]];

}

-(IBAction)openBrowser {

    // Lanuch any iPhone developers fav site

    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"http://itunesconnect.apple.com"]];

}

//自动填写短信内容 

MFMessageComposeViewController *picker = [[MFMessageComposeViewController alloc] init];

picker.messageComposeDelegate = self;

picker.recipients = [NSArray arrayWithObject:@"48151623"];  

picker.body = @"Body text.";

[self presentModalViewController:picker animated:YES];

[picker release];