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home / developersection / forums / how to set an image on imageview in android?
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How to set an image on ImageView in android?

Arti Mishra 2155 22 Aug 2018

How to set a circular image on ImageView, coming from the server.

android apps android
Updated 02 Jul 2023
Arti Mishra
Arti Mishra

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2 Answers

Aryan Kumar
Aryan Kumar 02 Jul 2023
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Sure, here is how to set an image on image view in Android:

Code snippet

public void setImage(Bitmap image) {
    // Get the image view
    ImageView imageView = findViewById(R.id.imageView);

    // Set the image in the image view
    imageView.setImageBitmap(image);
}

This code will first get the image view by calling the findViewById() method. Then, it will set the image in the image view by calling the setImageBitmap() method of the image view.

The setImageBitmap() method has one parameter:

  • The bitmap that will be displayed in the image view.

The bitmap can be obtained from a variety of sources, such as:

  • A file on the device's storage.
  • A resource in the app's resources.
  • A stream of data.

To use this code, you would need to call the setImage() method in your app. For example, you could call the method in your app's onCreate() method.

Here is an example of how you could call the setImage() method in your app's onCreate() method:

Code snippet

public void onCreate() {
    super.onCreate();

    // Create an image view to display the image
    imageView = findViewById(R.id.imageView);

    // Load the image from a file
    Bitmap image = BitmapFactory.decodeFile("path/to/image.jpg");

    // Set the image in the image view
    imageView.setImageBitmap(image);
}

When you run the app, you will see an image view with the image that you loaded from the file.

Arti Mishra
Arti Mishra 22 Aug 2018
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/* Create an object of ImageView */

 ImageView  myImage= (ImageView) findViewById(R.id.edit_image);

/* Picasso is a powerful image downloading and caching library.*/

        Picasso.with(getApplicationContext())

                .load("https://www.mysite.com//Contents/images/User%20Image/"+SaveSharedPreference.getPrefUserId(this) + ".png")

                .transform(new CircleTransformation())

                .into(myImage);

CircleTransformation.java

package com.example.msclient010.mindstickqna.Utils;

import android.graphics.Bitmap;

import android.graphics.BitmapShader;

import android.graphics.Canvas;

import android.graphics.Paint;

import com.squareup.picasso.Transformation;

/**

 * Created by msclient010 on 2/2/2018.

 */

public class CircleTransformation implements Transformation {

    @Override

    public Bitmap transform(Bitmap source) {

        int size = Math.min(source.getWidth(), source.getHeight());

        int x = (source.getWidth() - size) / 2;

        int y = (source.getHeight() - size) / 2;

        Bitmap squaredBitmap = Bitmap.createBitmap(source, x, y, size, size);

        if (squaredBitmap != source) {

            source.recycle();

        }

        Bitmap bitmap = Bitmap.createBitmap(size, size, source.getConfig());

        Canvas canvas = new Canvas(bitmap);

        Paint paint = new Paint();

        BitmapShader shader = new BitmapShader(squaredBitmap,

                BitmapShader.TileMode.CLAMP, BitmapShader.TileMode.CLAMP);

        paint.setShader(shader);

        paint.setAntiAlias(true);

        float r = size / 2f;

        canvas.drawCircle(r, r, r, paint);

        squaredBitmap.recycle();

        return bitmap;

    }

    @Override

    public String key() {

        return "circle";

    }

}

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