iphone调用系统电话、浏览器、地图、邮件等

openURL的使用方法：

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

其中系统的appString有：

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1.Map    http://maps.google.com/maps?q=Shanghai

2.Email  mailto://myname@google.com

3.Tel    tel://10086

4.Msg    sms://10086

openURL能帮助你运行Maps，SMS，Browser,Phone甚至其他的应用程序。这是Iphone开发中我经常需要用到的一段代码，它仅仅只有一行而已。

- (IBAction)openMaps {

    //打开地图

    NSString*addressText = @"beijing";

    //@"1Infinite Loop, Cupertino, CA 95014";

    addressText =[addressTextstringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding];

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

    NSLog(@"urlText=============== %@", urlText);

    [[UIApplicationsharedApplication] 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

    // CallGoogle 411

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

}

- (IBAction)openSms {

    //打开短信

    // Text toGoogle SMS

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

}

-(IBAction)openBrowser {

    //打开浏览器

    // Lanuch any iPhone developers fav site

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

}