How to print log only when app is in development mode?

I need to print logs in my application only while I am developing it. So is there a way like a boolean which will decide if my app is in a certain mode , and only allows to print log then? This will save my time from deleting logs every time I prepare for a signed build.

I tried solutions like:

boolean isDebuggable = 0 != (getApplicationInfo().flags &= ApplicationInfo.FLAG_DEBUGGABLE);

and:

if (BuildConfig.DEBUG) {
  // do something for a debug build
}`

They don't work like I want it to.

Thank you.

Just use a static variable debug like this:

if(debug){
//do something
}

And set debug to false when you release the apk file.

Or create your own custom log method:

public static void logInfo(String tag, String msg){
    if(DEBUG){
        Log.i(tag,msg);
    }
}