[Analysis of Android]ping-c 1-w sina.cn

Source: http://my.oschina.net/u/996206/blog/189914

Android Environment:
Ping-c 1-w sina.cn

-C: Indicates the number of times, 1 is 1
-W: Represents deadline, time out, in seconds, 100 for 100 seconds.

The connection means that the ping host sina.cn once and the timeout is 100 seconds.
Fatal problem: If this action is placed on the Android UI thread to do, there may be a problem.
The general scenario is to perform the "Ping-c 1-w sina.cn" in the UI thread from a runtime process, and then wait for it to return, typically process.waitfor ().
To know that Ping does not return for a long time, the worst case here is waiting for 100 seconds, and we know that the Android UI thread will have a problem with the ANR for a long time block.
So this scenario is a software design problem.

[Analysis of Android]ping-c 1-w sina.cn