Enables logging to system log/sdcard file.
Writes tag and message to the log file and also calls Log.d with given params.
Writes tag and message to the log file and also calls Log.e with given params.
Writes a message about exception to system log and to the file.
Writes tag and message to the log file and also calls Log.i with given params.
Shows log for exception
Shows log for invoked method
Writes tag and message to the log file and also calls Log.w with given params.