iphone调用系统电话、浏览器、地图、邮件等

from：http://blog.csdn.net/hufeng825/article/details/7217404

openURL的使用方法：

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toclipboardprint?

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

其中系统的appString有：

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toclipboardprint?

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

NSString *phone =
@"4006509988";

NSURL *url = [NSURL
URLWithString:[NSString
stringWithFormat:@"tel:%@", phone]];

//[[UIApplication sharedApplication] openURL:url];//普通方式
//拨打前有提示，拨打完后自动回到应用中

UIWebView *callPhoneWebVw = [[UIWebView
alloc] init];

NSURLRequest *request = [NSURLRequest
requestWithURL:url];
[callPhoneWebVw
loadRequest:request];

}

- (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"]];

}