decode Bitmap From Resource - Android Graphics

Android examples for Graphics:Bitmap Resource

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Description

decode Bitmap From Resource

Demo Code


//package com.java2s;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;

public class Main {
    public static Bitmap decodeBitmapFromResource(Resources res, int resId,
            int reqWidth, int reqHeight) {
        final BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;
        options.inSampleSize = calculateSize(options, reqWidth, reqHeight);

        options.inJustDecodeBounds = false;

        return BitmapFactory.decodeResource(res, resId, options);
    }/* ww  w  .ja va 2 s .  com*/

    public static int calculateSize(BitmapFactory.Options options,
            int reqWidth, int reqHeight) {
        // Raw height and width of image
        final int height = options.outHeight;
        final int width = options.outWidth;
        int inSampleSize = 1;

        if (height > reqHeight || width > reqWidth) {
            if (width > height) {
                inSampleSize = Math.round((float) height
                        / (float) reqHeight);
            } else {
                inSampleSize = Math.round((float) width / (float) reqWidth);
            }
        }
        return inSampleSize;
    }
}

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