本文實(shí)例講述了Android開發(fā)之圖片切割工具類定義與用法。分享給大家供大家參考，具體如下：
該工具類比較常見于拼圖游戲中使用。這里演示了類基本的定義與使用方法。
圖片切割工具類定義：
public class ImageSplitter{ /** * 將圖片切成 , piece *piece * * @param bitmap * @param piece * @return */ public static List<ImagePiece> split(Bitmap bitmap, int piece) { List<ImagePiece> pieces = new ArrayList<ImagePiece>(piece * piece); int width = bitmap.getWidth(); int height = bitmap.getHeight(); Log.e("TAG", "bitmap Width = " + width + " , height = " + height); int pieceWidth = Math.min(width, height) / piece; for (int i = 0; i < piece; i++) { for (int j = 0; j < piece; j++) { ImagePiece imagePiece = new ImagePiece(); imagePiece.index = j + i * piece; int xValue = j * pieceWidth; int yValue = i * pieceWidth; imagePiece.bitmap = Bitmap.createBitmap(bitmap, xValue, yValue, pieceWidth, pieceWidth); pieces.add(imagePiece); } } return pieces; }}圖片切割實(shí)體類：
public class ImagePiece{ public int index = 0; public Bitmap bitmap = null;}使用方法：
private void initBitmap(){ if (mBitmap == null) mBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.aa); List<ImagePiece> mItemBitmaps = ImageSplitter.split(mBitmap, mColumn); Collections.sort(mItemBitmaps, new Comparator<ImagePiece>() { @Override public int compare(ImagePiece lhs, ImagePiece rhs) { return Math.random() > 0.5 ? 1 : -1; } });}希望本文所述對大家Android程序設(shè)計(jì)有所幫助。
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