React Native responsive image width while width/height ratio of image keeps the same

Question

I want a React Native Image to have a width of 50% of the available screen-width, no modification to width:height ratio of the image.

Any hints how to solve this?

Answer 1

Local images can be rendered without giving a fixed width and height but, for remote images you must provide dimensions as react-native cant calculate them on runtime. So, the following works for me

and apply following styles.

thumbContainer: {
    width: '100%',
    height: 400,
  },
  thumbnail: {
    flex: 1,
    width: undefined,
    height: undefined,
    resizeMode: 'cover'
  },