How to remove all debug logging calls before building the release version of an Android app?

Question

According to Google, I must \"deactivate any calls to Log methods in the source code\" before publishing my Android app to Google Play. Extract from section 3 of th

Answer 1

I highly suggest using Timber from Jake Wharton

https://github.com/JakeWharton/timber

it solves your issue with enabling/disabling plus adds tag class automagically

just

public class MyApp extends Application {

  public void onCreate() {
    super.onCreate();
    //Timber
    if (BuildConfig.DEBUG) {
      Timber.plant(new DebugTree());
    }
    ...

logs will only be used in your debug ver, and then use

Timber.d("lol");

or

Timber.i("lol says %s","lol");

to print

"Your class / msg" without specyfing the tag

Answer 2

All good answers, but when I was finished with my development I didn´t want to either use if statements around all the Log calls, nor did I want to use external tools.

So the solution I`m using is to replace the android.util.Log class with my own Log class:

public class Log {
    static final boolean LOG = BuildConfig.DEBUG;

    public static void i(String tag, String string) {
        if (LOG) android.util.Log.i(tag, string);
    }
    public static void e(String tag, String string) {
        if (LOG) android.util.Log.e(tag, string);
    }
    public static void d(String tag, String string) {
        if (LOG) android.util.Log.d(tag, string);
    }
    public static void v(String tag, String string) {
        if (LOG) android.util.Log.v(tag, string);
    }
    public static void w(String tag, String string) {
        if (LOG) android.util.Log.w(tag, string);
    }
}

The only thing I had to do in all the source files was to replace the import of android.util.Log with my own class.

Answer 3

Easy with kotlin, just declare a few top level functions

val isDebug: Boolean
    get() = BuildConfig.DEBUG

fun logE(tag: String, message: String) {
    if (isDebug) Log.e(tag, message)
}

fun logD(tag: String, message: String) {
    if (isDebug) Log.d(tag, message)
}