Disable LogCat Output COMPLETELY in release Android app?

You can use ProGuard to remove completely any lines where a return value is not used, by telling ProGuard to assume that there will be no problems.

The following proguard.cfg chunk instructs to remove Log.d, Log.v and Log.i calls.

-assumenosideeffects class android.util.Log {
    public static *** d(...);
    public static *** w(...);
    public static *** v(...);
    public static *** i(...);
}

The end result is that these log lines are not in your release apk, and therefore any user with logcat won’t see d/v/i logs.

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