Android Best Logger For Logging Into File

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 04-29 12:58:57.604: E/Androi

Solution 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-<version>.jar and logback-android-<version>.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:

<configuration><appendername="FILE"class="ch.qos.logback.core.FileAppender"><file>/sdcard/testFile.log</file><append>true</append><encoder><pattern>%-4relative [%thread] %-5level %logger{35} - %msg%n</pattern></encoder></appender><rootlevel="DEBUG"><appender-refref="FILE" /></root></configuration>

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.

Solution 2:

Make a folder named "libs" and put the jar inside that folder.