Android Studio show whitespace & Android studio 设置注释缩进

https://github.com/xgqfrms/flutter/issues/14

android studio show whitespace

https://*.com/questions/25500123/how-to-show-white-space-character-in-android-studio-as-eclipse-tool

Android studio 4.0 & Flutter / Dart

I just want to cancel comment at first column like Java, as below shows

bad

good

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