logback-android-demo

This example belongs to an article published in Java Magazin 9.17: Android Logging for Java Professionals – SLF4J and Logback in Android.
The original article (:de:) can be found here: Android Logging für Java-Profis – SLF4J und Logback in Android.

An example that shows some possibilities of using logback-android:

• The app issues log statements when pressing a button and displays those in a the main text view (see MainActivity).
• There is an exemplary logback.xml,
  • writing to a file (that is rolled over daily) and
  • logcat. It also
  • forwards JUL to SLF4J/logback.
• The app also provides a PreferencesDeveloperActivity / preferences_developer.xml that allows for
  • Setting the root/logcat levels at runtime
  • Opening the current logfile in an editor: OpenLogActivity
  • Sending all logfiles via email: SendLogActivity
• The central logback-android logic is encapsulated in a separate JAR file: logback-android-utils

Logback android in the Context of SLF4J

(created using mermaid)

Jenkins

Running Jenkinsfile with the pipeline plugin (tested with version 2.4) requires

• A JDK defined as Jenkins tool (see Jenkinsfile for name of JDK tool)
• Android SDK installed on Jenkins salve, matching the compileSdkVersion and buildToolsVersion as defined in app/build.gradle
• Optional: You can add a build parameter RECIPIENTS that contains a comma-separated list of all email recipie