How to check an Android device is HDPI screen or MDPI screen?

Question

I want to check this to fetch different images by internet. How to do that?

Answer 1

For React Native to check which size is currently of device

import { PixelRatio } from 'react-native';   
 switch(PixelRatio.get()) {
      case 1:
      return "mdpi";
      case 1.5:
      return "hdpi";
      case 2:
      return "xhdpi";
      case 3:
      return "xxhdpi";
      case 3.5:
      return "xxxhdpi";
    }