Shrink Bitmap by width and height - Android Graphics

Android examples for Graphics:Bitmap Size

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Description

Shrink Bitmap by width and height

Demo Code


//package com.java2s;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;

public class Main {
    public static Bitmap ShrinkBitmap(String file, int width, int height) {

        BitmapFactory.Options bmpFactoryOptions = new BitmapFactory.Options();
        bmpFactoryOptions.inJustDecodeBounds = true;
        Bitmap bitmap = BitmapFactory.decodeFile(file, bmpFactoryOptions);

        int heightRatio = (int) Math.ceil(bmpFactoryOptions.outHeight
                / (float) height);
        int widthRatio = (int) Math.ceil(bmpFactoryOptions.outWidth
                / (float) width);

        if (heightRatio > 1 || widthRatio > 1) {
            if (heightRatio > widthRatio) {
                bmpFactoryOptions.inSampleSize = heightRatio;
            } else {
                bmpFactoryOptions.inSampleSize = widthRatio;
            }/*from  w  w w  . j a  va 2s  . c o m*/
        }

        bmpFactoryOptions.inJustDecodeBounds = false;
        bitmap = BitmapFactory.decodeFile(file, bmpFactoryOptions);
        return bitmap;
    }
}

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