Android Bitmap Size Get calculateInSampleSize(BitmapFactory.Options options, int reqWidth, int reqHeight)

Description

calculate In Sample Size

Declaration

private static int calculateInSampleSize(BitmapFactory.Options options,
            int reqWidth, int reqHeight) 

Method Source Code

//package com.java2s;

import android.graphics.BitmapFactory;

public class Main {
    private static int calculateInSampleSize(BitmapFactory.Options options,
            int reqWidth, int reqHeight) {
        final int height = options.outHeight;
        final int width = options.outWidth;
        int inSampleSize = 1;

        if (height > reqHeight || width > reqWidth) {

            final int halfHeight = height / 2;
            final int halfWidth = width / 2;

            while ((halfHeight / inSampleSize) > reqHeight
                    && (halfWidth / inSampleSize) > reqWidth) {
                inSampleSize *= 2;//from w w  w  .ja va2  s . c  o m
            }
        }
        return inSampleSize;
    }
}

Related

1. bitmapSize(Bitmap bitmap)
2. calculateInSampleSize(BitmapFactory.Options options, int reqWidth, int reqHeight)
3. calculateInSampleSize(BitmapFactory.Options options, int reqWidth, int reqHeight)
4. computeInitialSampleSize( BitmapFactory.Options options, int minSideLength, int maxNumOfPixels)
5. computeSampleSize(BitmapFactory.Options options, int minSideLength, int maxNumOfPixels)