Use Xlint:deprecation with android

Question

So I almost always get some message like this when I\'m compiling my android app:

[javac] Note: /home/kurtis/sandbox/udj/androidApp/src/org/klnusbaum/udj/Playlis         


        

Answer 1

If you want to have a good CI + CD pipeline and you care about your code quality, a good option to show more information about lint complainings is by adding this to your top/root gradle.build:

subprojects {
  gradle.projectsEvaluated {
    tasks.withType(JavaCompile) {
      options.compilerArgs += [
        '-Xlint:unchecked', // Shows information about unchecked or unsafe operations.
        '-Xlint:deprecation', // Shows information about deprecated members.
      ]
    }
  }
}

or

subprojects {
  gradle.projectsEvaluated {
    tasks.withType(JavaCompile) {
      options.compilerArgs << "-Xlint:unchecked" << "-Xlint:deprecation"
    }
  }
}

If you only want to add one option (you would normally add more), inside the task JavaCompile you just need to add:

options.compilerArgs << "-Xlint:unchecked"

It's 2018 and you can rely on Gradle to set this up. I only added two compiler argument options but there are much more. You can find more information here and here.