Debug without using temporary Log in Android Studio

Have you ever add Log.d(TAG, message) to your Android app code just TEMPORARILY just to know a function has been reached? Or to watch a variable’s value, or count how many times a function has been reached? After doing, then have to remove them and recompile everything again. There’s 3 tricks below that could help you avoid need to code Log and compile and also no need to wait the breakpoint to st