put Together a list of Bitmap - Android Graphics

Android examples for Graphics:Bitmap Combine

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Description

put Together a list of Bitmap

Demo Code


//package com.java2s;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Rect;

public class Main {
    public static Bitmap putTogether(int rows, int cols,
            Bitmap... originBitmaps) {/*from  w  w w  .  jav  a2  s . c om*/

        if (rows == 1 && cols == 1) {
            //warn
        } else {
            if (rows == 1) {
                cols = originBitmaps.length;
            }

            if (cols == 1) {
                rows = originBitmaps.length;
            }
        }

        if (rows <= 0 || cols <= 0) {
            throw new IllegalArgumentException();
        }

        int width = originBitmaps[0].getWidth();
        int height = originBitmaps[0].getHeight();

        Bitmap bitmap = Bitmap.createBitmap(width * cols, height * rows,
                Bitmap.Config.ARGB_4444); // Fix the Out of Memory issue

        Canvas canvas = new Canvas(bitmap);

        int rowNo = 0;
        int colNo = 0;

        for (Bitmap originBitmap : originBitmaps) {

            canvas.drawBitmap(originBitmap, new Rect(0, 0, width, height),
                    new Rect(colNo * width, rowNo * height, (colNo + 1)
                            * width, (rowNo + 1) * height), null);
            colNo++;
            if (colNo == cols) {
                rowNo++;
                colNo = 0;
            }

            // Try to fix the bitmap Out of Memory issue
            //if(!originBitmap.isRecycled() ){
            //   Log.e("BITMAP", "Recycle "+originBitmap.hashCode());
            //   originBitmap.recycle(); // Recycle the memory used by bitmap
            //    System.gc();      // Call System garbage collector
            //}
        }

        return bitmap;
    }
}

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