allprojects {
  repositories {
    ...
    maven { url 'https://jitpack.io' }
  }
}

dependencies {
    compile 'com.github.RobertoMorelos:LogUtil:1.0.0'
}

<repositories>
  <repository>
      <id>jitpack.io</id>
      <url>https://jitpack.io</url>
  </repository>
</repositories>

<dependency>
    <groupId>com.github.RobertoMorelos</groupId>
    <artifactId>LogUtil</artifactId>
    <version>1.0.0</version>
</dependency>

public class MyApp extends Application {

  @Override
  public void onCreate() {
      super.onCreate();

      // Here you can set any boolean value to enable/disable logs.
      // I'm using the Android variable from BuildConfig to check my environment.
      // If I'm in debug mode (development) I want to be able to see all logs.
      // If I want to publish my app then it won't be debug anymore and all my logs won't be shown.
      LogU.enableLogs(BuildConfig.DEBUG);
  }
}

LogU.v(TAG, "You are seeing this log only in debug mode!");