在SDK中打开其他接入应用的解决方案

NSString *identifier = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleIdentifier"];

[[UIApplication sharedApplication] launchApplicationWithIdentifier:identifier suspended:NO];

-(IBAction)openMaps {//打开地图
    // 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 {//打开mail
    // Fire off an email to apple support
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"mailto://devprograms@apple.com"]];
    } 
    -(IBAction)openPhone {//拨打电话
    // Call Google 411
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"tel://8004664411"]];
    } 
    -(IBAction)openSms {//打开短信
    // Text to Google SMS
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"sms://466453"]];
    } 
    -(IBAction)openBrowser {//打开浏览器
    // Lanuch any iPhone developers fav site
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"http://itunesconnect.apple.com"]];
    }

NSURL *url = [NSURL URLWithString:@" myapp:"];  

[[UIApplication sharedApplication] openURL:url]; 

   // Check App ID:

    // This is really a warning for the developer, this should not

    // happen in a completed app

    if (!kAppId) {

        UIAlertView *alertView = [[UIAlertView alloc] 

                                  initWithTitle:@"Setup Error" 

                                  message:@"Missing app ID. You cannot run the app until you provide this in the code."

                                  delegate:self 

                                  cancelButtonTitle:@"OK" 

                                  otherButtonTitles:nil, 

                                  nil];

        [alertView show];

        [alertView release];

    } else {

        // Now check that the URL scheme fb[app_id]://authorize is in the .plist and can

        // be opened, doing a simple check without local app id factored in here

        NSString *url = [NSString stringWithFormat:@"fb%@://authorize",kAppId];

        BOOL bSchemeInPlist = NO; // find out if the sceme is in the plist file.

        NSArray* aBundleURLTypes = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleURLTypes"];

        if ([aBundleURLTypes isKindOfClass:[NSArray class]] && 

            ([aBundleURLTypes count] > 0)) {

            NSDictionary* aBundleURLTypes0 = [aBundleURLTypes objectAtIndex:0];

            if ([aBundleURLTypes0 isKindOfClass:[NSDictionary class]]) {

                NSArray* aBundleURLSchemes = [aBundleURLTypes0 objectForKey:@"CFBundleURLSchemes"];

                if ([aBundleURLSchemes isKindOfClass:[NSArray class]] &&

                    ([aBundleURLSchemes count] > 0)) {

                    NSString *scheme = [aBundleURLSchemes objectAtIndex:0];

                    if ([scheme isKindOfClass:[NSString class]] && 

                        [url hasPrefix:scheme]) {

                        bSchemeInPlist = YES;

                    }

                }

            }

        }

        // Check if the authorization callback will work

        BOOL bCanOpenUrl = [[UIApplication sharedApplication] canOpenURL:[NSURL URLWithString: url]];

        if (!bSchemeInPlist || !bCanOpenUrl) {

            UIAlertView *alertView = [[UIAlertView alloc] 

                                      initWithTitle:@"Setup Error" 

                                      message:@"Invalid or missing URL scheme. You cannot run the app until you set up a valid URL scheme in your .plist."

                                      delegate:self 

                                      cancelButtonTitle:@"OK" 

                                      otherButtonTitles:nil, 

                                      nil];

            [alertView show];

            [alertView release];

        }

    }