I Want to load image from json in my assest as a string and then pass it to an imageview. How to do-CodePudding

I Want to load image from json in my assest as a string and then pass it to an imageview. How to do it?

CodePudding user response：

Say your json is something like:

const book = {
id: 1,
title: "my title",
img:"/image/file.png",
...
}
...

you may pass that object directly in your image tag:

eg.

<img src="{book.img}" />

CodePudding user response：

You can use Library like Glide and Picasso for load image in imageview as a string Please check below link How to load Image into ImageView from Url using Glide v4.0.0RC1

CodePudding user response：

If you want to store the whole image in your JSON, than you could use base64 to convert from byte[] to String and vice versa. Java has base64 encoders and decoders in it's util packages. Wiki page: https://en.wikipedia.org/wiki/Base64.

CodePudding user response：

Get image as byteArray from JSON, then set it into imageView.

    //byte[] imageData 

    ImageView imgViewer = (ImageView) findViewById(R.id.image);
    Bitmap bm = BitmapFactory.decodeByteArray(imageData, 0, imageData.length);
    DisplayMetrics dm = new DisplayMetrics();
    getWindowManager().getDefaultDisplay().getMetrics(dm);

    imgViewer.setImageBitmap(bm);