Android中将一个图片切割成多个图片的实现方法

package arui319.blog.csdn.net; 

import android.graphics.Bitmap; 

public class ImagePiece { 

    public int index = 0; 

    public Bitmap bitmap = null; 
} 

package arui319.blog.csdn.net; 

import java.util.ArrayList; 
import java.util.List; 

import android.graphics.Bitmap; 

public class ImageSplitter { 

    public static List<ImagePiece> split(Bitmap bitmap, int xPiece, int yPiece) { 

        List<ImagePiece> pieces = new ArrayList<ImagePiece>(xPiece * yPiece); 
        int width = bitmap.getWidth(); 
        int height = bitmap.getHeight(); 
        int pieceWidth = width / 3; 
        int pieceHeight = height / 3; 
        for (int i = 0; i < yPiece; i++) { 
            for (int j = 0; j < xPiece; j++) { 
                ImagePiece piece = new ImagePiece(); 
                piece.index = j + i * xPiece; 
                int xValue = j * pieceWidth; 
                int yValue = i * pieceHeight; 
                piece.bitmap = Bitmap.createBitmap(bitmap, xValue, yValue, 
                        pieceWidth, pieceHeight); 
                pieces.add(piece); 
            } 
        } 

        return pieces; 
    } 

}