How to cut an image into multiple images in Android

The following are two encapsulated classes for image cutting. For reference and learning only.

One is the ImagePiece class, which stores a Bitmap object and an int variable that identifies the ordered index of the image.

Copy codeThe Code is as follows: package arui319.blog.csdn.net;

Import android. graphics. Bitmap;

Public class ImagePiece {

Public int index = 0;

Public Bitmap bitmap = null;
}

One is the ImageSplitter class, which has a static split method. The input parameter is the Bitmap object to be cut, and the number of horizontal and vertical slices. For example, if the input value is 3 or 3, the image is cut to 3X3 = 9 in the horizontal and vertical directions.Copy codeThe Code is as follows: 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;
}

}

Here, the cut mainly uses the createBitmap method of the Bitmap object, which is not described in detail.