ios 打开其他应用

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

1、打开系统应用

打电话：[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@”tel://123456”]];

打开浏览器：[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@”http://devhc.com"]];

其他url格式如下表所示：

Apple URL Scheme Reference

Application	URI Scheme or Protocol	Query Strings
Default e-mail application	mailto:<email>?query	Subject
		CC
		BCC
		Body
Default phone application	tel:<number>	N/A
Default SMS application	sms:<number>	N/A
Syndication feed reader	feed:<url>	N/A
Apple FaceTime	facetime:<number>	N/A

http://handleopenurl.com/  可以查看其它协议相关接口，比如qq

2、打开自定义app

首先在要打开的比如app2中 定义在info.plist URL Schemas

在app1中打开
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@“myapp://”]];

打开回调
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation   (Available in iOS 4.2 and later)

- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL*)url (ios 4.2 Deprecated)