Android best logger for logging into file

Question

What is the best logger framework which perfectly use in Android system for logging text into file?

I tried to use SLF4J-android but I got an exception

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Answer 1

slf4j-android only supports logging to logcat and thus omits several classes from the regular SLF4J jar. If you want to use logback to log to a file, you need the API jar (not slf4j-android) and logback-android. You're looking for the FileAppender or RollingFileAppender.

Instructions:

1. Add slf4j-api-.jar and logback-android-.jar to your classpath.

2. Create the file assets/logback.xml in your project (or use the AndroidManifest.xml...see example), containing the following configuration:

  
    /sdcard/testFile.log
    true
    
      %-4relative [%thread] %-5level %logger{35} - %msg%n
    
  
        
  
    
  

Note: Since the specified path is on SD, make sure to use WRITE_EXTERNAL_STORAGE permission. You can instead specify a different path where you already have write permissions.

Your Java code, which contains the SLF4J logging calls, now logs all events at or above the DEBUG level to the /sdcard/testFile.log.