Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import android.graphics.Bitmap;

import android.graphics.Bitmap.Config;

import android.graphics.Canvas;

public class Main {
    public static final int TOP = 0;
    public static final int BOTTOM = 1;
    public static final int LEFT = 2;
    public static final int RIGHT = 3;

    public static Bitmap composeBitmap(int direction, Bitmap... bitmaps) {
        if (bitmaps.length < 2) {
            return null;
        }
        Bitmap firstBitmap = bitmaps[0];
        for (int i = 1; i < bitmaps.length; i++) {
            firstBitmap = composeBitmap(firstBitmap, bitmaps[i], direction);
        }
        return firstBitmap;
    }

    private static Bitmap composeBitmap(Bitmap firstBitmap, Bitmap secondBitmap, int direction) {
        if (firstBitmap == null) {
            return null;
        }
        if (secondBitmap == null) {
            return firstBitmap;
        }
        final int fw = firstBitmap.getWidth();
        final int fh = firstBitmap.getHeight();
        final int sw = secondBitmap.getWidth();
        final int sh = secondBitmap.getHeight();
        Bitmap bitmap = null;
        Canvas canvas = null;
        if (direction == TOP) {
            bitmap = Bitmap.createBitmap(sw > fw ? sw : fw, fh + sh, Config.ARGB_8888);
            canvas = new Canvas(bitmap);
            canvas.drawBitmap(secondBitmap, 0, 0, null);
            canvas.drawBitmap(firstBitmap, 0, sh, null);
        } else if (direction == BOTTOM) {
            bitmap = Bitmap.createBitmap(fw > sw ? fw : sw, fh + sh, Config.ARGB_8888);
            canvas = new Canvas(bitmap);
            canvas.drawBitmap(firstBitmap, 0, 0, null);
            canvas.drawBitmap(secondBitmap, 0, fh, null);
        } else if (direction == LEFT) {
            bitmap = Bitmap.createBitmap(fw + sw, sh > fh ? sh : fh, Config.ARGB_8888);
            canvas = new Canvas(bitmap);
            canvas.drawBitmap(secondBitmap, 0, 0, null);
            canvas.drawBitmap(firstBitmap, sw, 0, null);
        } else if (direction == RIGHT) {
            bitmap = Bitmap.createBitmap(fw + sw, fh > sh ? fh : sh, Config.ARGB_8888);
            canvas = new Canvas(bitmap);
            canvas.drawBitmap(firstBitmap, 0, 0, null);
            canvas.drawBitmap(secondBitmap, fw, 0, null);
        }
        return bitmap;
    }
}