"Android Test", "section fifth" logcat--command line

Objective

　　The previous article will be if the logcat in eclipse to do log viewing and filtering, many times we face the problem:

If your app needs to be outdoors to run (for example, using navigation in the Map software), it might be inconvenient to carry a computer outdoors, and you want to save the log, so how do you do it? This section will address this issue.

Pre-knowledge

First of all, it is not mentioned in the previous section of knowledge, I think it is more important, is the log classification of several levels:

　　V (verbose)
D (Debug)
　　I (Information)
　　W (warning)
　　E (Error)

These kinds of logs have higher and lower priority levels, that is, if you filter v, then the log will come out, if you come over E, then only the E log will appear .

　　

Command line

After entering Logcat in the shell command

Logcat dalvikvm:v *:s

"Android Test", "section fifth" logcat--command line