For the More Curious: Log Levels

When you use the android.util.Log class to send log messages, you control not only the content of a message but also a level that specifies how important the message is. Android supports five log levels, shown in Table 3.2. Each level has a corresponding function in the Log class. Sending output to the log is as simple as calling the corresponding Log function.

Table 3.2  Log levels and functions

Log level Function Used for

ERROR

Log.e(…)

errors

WARNING

Log.w(…)

warnings

INFO

Log.i(…)

informational messages

DEBUG

Log.d(…)

debug output (may be filtered out)

VERBOSE

Log.v(…)

development only

In addition, each of the logging functions has two ...

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