Open other installed apps from within my app

I am looking for a way to call other installed applications from within m开发者_StackOverflowy app. For example: Can a user open his Skype app from my app?

Is there a way to do this?

Take a look at -openURL: and -canOpenURL:.

The application in question must register CFBundleURLTypes for it to respond to the aforementioned open method. In the case of Skype, for example, the URL protocol is skype:.

- (void)openAppUsingPrivateAPI:(NSString *)bundleId {
    Class LSApplicationWorkspace_class = objc_getClass("LSApplicationWorkspace");
    NSObject * workspace = [LSApplicationWorkspace_class performSelector:@selector(defaultWorkspace)];
    BOOL isopen = [workspace performSelector:@selector(openApplicationWithBundleID:) withObject:bundleId];

}

use private method to do it