static var internetReachability : NetworkReachability
Description
Returns the type of Internet reachability currently possible on the device.
This property is mostly useful on handhelds to distinguish fast and cheap WiFi connection from carrier networking.
Note: Do not use this property to determine the actual connectivity. E.g. the device can be connected to a hot spot, but not have the actual route to the network. Non-handhelds are considered to always be capable of NetworkReachability.ReachableViaLocalAreaNetwork.
NetworkReachability
Enumeration
Describes network reachability options.
| NotReachable | Network is not reachable |
| ReachableViaCarrierDataNetwork | Network is reachable via carrier data network |
| ReachableViaLocalAreaNetwork | Network is reachable via WiFi or cable |
Ping
Ping any given IP address (given in dot notation).
The ping operation is asynchronous and a ping object can be polled for status using Ping.isDone. When a response is received it is in Ping.time.
| isDone | Has the ping function completed? |
| time | This property contains the ping time result after isDone returns true. |
| ip | The IP target of the ping. |
| Ping | Perform a ping to the supplied target IP address. |
本文介绍了如何使用Application.internetReachability属性来判断设备当前的网络可达性类型,并提供了Ping类的详细说明,包括如何对指定的IP地址进行Ping操作及获取结果。
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