Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

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

import android.graphics.Matrix;

import android.graphics.Bitmap.Config;

public class Main {
    public static Bitmap getDrawable(String path, int zoom, int mItemwidth, int mItemHerght) {

        BitmapFactory.Options options = new BitmapFactory.Options();
        options.inJustDecodeBounds = true;
        BitmapFactory.decodeFile(path, options);
        int mWidth = options.outWidth;
        int mHeight = options.outHeight;
        int s = 1;
        while ((mWidth / s > mItemwidth * 2 * zoom) || (mHeight / s > mItemHerght * 2 * zoom)) {
            s *= 2;
        }

        options = new BitmapFactory.Options();
        options.inPreferredConfig = Config.ARGB_8888;
        options.inSampleSize = s;
        Bitmap bm = BitmapFactory.decodeFile(path, options);

        if (bm != null) {
            int h = bm.getHeight();
            int w = bm.getWidth();

            float ft = (float) ((float) w / (float) h);
            float fs = (float) ((float) mItemwidth / (float) mItemHerght);

            int neww = ft >= fs ? mItemwidth * zoom : (int) (mItemHerght * zoom * ft);
            int newh = ft >= fs ? (int) (mItemwidth * zoom / ft) : mItemHerght * zoom;

            float scaleWidth = ((float) neww) / w;
            float scaleHeight = ((float) newh) / h;

            Matrix matrix = new Matrix();
            matrix.postScale(scaleWidth, scaleHeight);
            bm = Bitmap.createBitmap(bm, 0, 0, w, h, matrix, true);
            return bm;
        }
        return null;
    }
}