Class Log


  • public class Log
    extends Object
    Custom logger class.

    Allows filtering logs by level with the setLogLevel(int) method.

    You can also register your own Log.Loggers to get the log messages.

    Since:
    4.2.0
    • Field Detail

      • DEFAULT_LOG_LEVEL

        public static final int DEFAULT_LOG_LEVEL
        Default log level
        See Also:
        Constant Field Values
    • Method Detail

      • addLogger

        public static void addLogger​(Log.Logger logger)
        Add a Log.Logger to receive logging messages.
        Parameters:
        logger - logger to add
      • removeLogger

        public static boolean removeLogger​(Log.Logger logger)
        Removes a previously registered Log.Logger
        Parameters:
        logger - the logger to remove
        Returns:
        true if removed
      • getLogLevel

        public static int getLogLevel()
        Returns the current log level
        Returns:
        the current log level
      • setLogLevel

        public static void setLogLevel​(int logLevel)
        Sets the log level.

        Any messages with the selected log level or higher will be logged.

        NOTE: The Log.Loggers will be called regardless of this log level.

        Parameters:
        logLevel - the log level to set
      • v

        public static int v​(String tag,
                            String msg)
        Send a Log.VERBOSE log message.
        Parameters:
        tag - Used to identify the source of a log message. It usually identifies the class or activity where the log call occurs.
        msg - The message you would like logged.
        Returns:
        number of bytes written by Log.println(int, String, String)
      • v

        public static int v​(String tag,
                            String msg,
                            Throwable tr)
        Send a Log.VERBOSE log message and log the exception.
        Parameters:
        tag - Used to identify the source of a log message. It usually identifies the class or activity where the log call occurs.
        msg - The message you would like logged.
        tr - An exception to log
        Returns:
        number of bytes written by Log.println(int, String, String)
      • d

        public static int d​(String tag,
                            String msg)
        Send a Log.DEBUG log message.
        Parameters:
        tag - Used to identify the source of a log message. It usually identifies the class or activity where the log call occurs.
        msg - The message you would like logged.
        Returns:
        number of bytes written by Log.println(int, String, String)
      • d

        public static int d​(String tag,
                            String msg,
                            Throwable tr)
        Send a Log.DEBUG log message and log the exception.
        Parameters:
        tag - Used to identify the source of a log message. It usually identifies the class or activity where the log call occurs.
        msg - The message you would like logged.
        tr - An exception to log
        Returns:
        number of bytes written by Log.println(int, String, String)
      • i

        public static int i​(String tag,
                            String msg)
        Send a Log.INFO log message.
        Parameters:
        tag - Used to identify the source of a log message. It usually identifies the class or activity where the log call occurs.
        msg - The message you would like logged.
        Returns:
        number of bytes written by Log.println(int, String, String)
      • i

        public static int i​(String tag,
                            String msg,
                            Throwable tr)
        Send a Log.INFO log message and log the exception.
        Parameters:
        tag - Used to identify the source of a log message. It usually identifies the class or activity where the log call occurs.
        msg - The message you would like logged.
        tr - An exception to log
        Returns:
        number of bytes written by Log.println(int, String, String)
      • e

        public static int e​(String tag,
                            String msg)
        Send a Log.ERROR log message.
        Parameters:
        tag - Used to identify the source of a log message. It usually identifies the class or activity where the log call occurs.
        msg - The message you would like logged.
        Returns:
        number of bytes written by Log.println(int, String, String)
      • e

        public static int e​(String tag,
                            String msg,
                            Throwable tr)
        Send a Log.ERROR log message and log the exception.
        Parameters:
        tag - Used to identify the source of a log message. It usually identifies the class or activity where the log call occurs.
        msg - The message you would like logged.
        tr - An exception to log
        Returns:
        number of bytes written by Log.println(int, String, String)
      • w

        public static int w​(String tag,
                            String msg)
        Send a Log.WARN log message.
        Parameters:
        tag - Used to identify the source of a log message. It usually identifies the class or activity where the log call occurs.
        msg - The message you would like logged.
        Returns:
        number of bytes written by Log.println(int, String, String)
      • w

        public static int w​(String tag,
                            String msg,
                            Throwable tr)
        Send a Log.WARN log message and log the exception.
        Parameters:
        tag - Used to identify the source of a log message. It usually identifies the class or activity where the log call occurs.
        msg - The message you would like logged.
        tr - An exception to log
        Returns:
        number of bytes written by Log.println(int, String, String)