iOS程序中调用系统自带应用(短信，邮件，浏览器，地图，appstore，拨打电话)

查看更多iPhone应用程序的调用和第三方应用程序的调用，可以在iPhone的URL方案查看。下面列举部分：

NSString *title = @"title";float latitude = 35.4634;float longitude = 9.43425;int zoom = 13;NSString *stringURL = [NSString stringWithFormat:@"http://maps.google.com/maps?q=%@@%1.6f,%1.6f&z=%d", title, latitude, longitude, zoom];NSURL *url = [NSURL URLWithString:stringURL];[[UIApplication sharedApplication] openURL:url];

It seems?that maps:// also opens up the Maps application.

NSMutableString *phone = [[@"+ 12 34 567 89 01" mutableCopy] autorelease];[phone replaceOccurrencesOfString:@" "                        withString:@""                           options:NSLiteralSearch                             range:NSMakeRange(0, [phone length])];[phone replaceOccurrencesOfString:@"("                        withString:@""                           options:NSLiteralSearch                             range:NSMakeRange(0, [phone length])];[phone replaceOccurrencesOfString:@")"                        withString:@""                           options:NSLiteralSearch                             range:NSMakeRange(0, [phone length])];NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"tel:%@", phone]];[[UIApplication sharedApplication] openURL:url];

NSString *stringURL = @"http://www.youtube.com/watch?v=WZH30T99MaM";NSURL *url = [NSURL URLWithString:stringURL];[[UIApplication sharedApplication] openURL:url];

It also works with this URL (which normally brings the Flash video player used by YouTube):

NSString *stringURL = @"http://www.youtube.com/v/WZH30T99MaM";NSURL *url = [NSURL URLWithString:stringURL];[[UIApplication sharedApplication] openURL:url];

?

ChatCo

NSString *stringURL = @"irc://irc.example.domain/roomName";NSURL *url = [NSURL URLWithString:stringURL];[[UIApplication sharedApplication] openURL:url];

NSString *stringURL = @"irc://irc.example.domain/Nickname@roomName";NSURL *url = [NSURL URLWithString:stringURL];[[UIApplication sharedApplication] openURL:url];

NSString *stringURL = @"irc://irc.example.domain/Nickname!Realname@roomName";NSURL *url = [NSURL URLWithString:stringURL];[[UIApplication sharedApplication] openURL:url];