Compress Image Android Studio

1. Create folder called Utils

2. Add class to that folder called CompressBitmap

3. Write inside that file the following:

import android.graphics.Bitmap;
import android.graphics.Matrix;

import java.io.ByteArrayOutputStream;

public class CompressBitmap {




    public static Bitmap compress(Bitmap bitmap, double maxSize) {
        // bitmapbitmap
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        //
        bitmap.compress(Bitmap.CompressFormat.PNG, 70, baos);
        byte[] b = baos.toByteArray();
        // KB
        double mid = b.length / 1024;
        // bitmap
        double i = mid / maxSize;
        // bitmap
        if (i > 1) {
            //
            //
            bitmap = scale(bitmap, bitmap.getWidth() / Math.sqrt(i),
                    bitmap.getHeight() / Math.sqrt(i));
        }

        return bitmap;
    }

    public static Bitmap scale(Bitmap src, double newWidth, double newHeight) {
        // src
        float width = src.getWidth();
        float height = src.getHeight();
        // matrix
        Matrix matrix = new Matrix();
        //
        float scaleWidth = ((float) newWidth) / width;
        float scaleHeight = ((float) newHeight) / height;
        //
        matrix.postScale(scaleWidth, scaleHeight);
        //
        return Bitmap.createBitmap(src, 0, 0, (int) width, (int) height,
                matrix, true);
    }

    public static Bitmap scale(Bitmap src, Matrix scaleMatrix) {
        return Bitmap.createBitmap(src, 0, 0, src.getWidth(),
                src.getHeight(), scaleMatrix, true);
    }

    public static Bitmap scale(Bitmap src, float scaleX, float scaleY) {
        Matrix matrix = new Matrix();
        matrix.postScale(scaleX, scaleY);
        return Bitmap.createBitmap(src, 0, 0, src.getWidth(),
                src.getHeight(), matrix, true);
    }

    public static Bitmap scale(Bitmap src, float scale) {
        return scale(src, scale, scale);
    }
}

4. Call this function to Compress

//-------------------------------------  COMPRESSING
Bitmap imageBitmap;
Bitmap imageBitmap2;
byte[] imageByte = new byte[0];
try {
    imageBitmap = MediaStore.Images.Media.getBitmap(getContentResolver(), fileUri);

    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    imageBitmap2 = compress(imageBitmap, 2000);

    imageBitmap2.compress(Bitmap.CompressFormat.JPEG, 90, baos);
    imageByte = baos.toByteArray();

} catch (IOException e) {
    e.printStackTrace();
}

5. Original file will be compressed, so you can use the same filenamePath to access it