import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.drawable.Drawable;
import android.util.AttributeSet;
import android.view.View;
/**
* TileView: a View-variant designed for handling arrays of "icons" or other
* drawables.
*
*/
public class TileView extends View { /**
* Parameters controlling the size of the tiles and their range within view.
* Width/Height are in pixels, and Drawables will be scaled to fit to these
* dimensions. X/Y Tile Counts are the number of tiles that will be drawn.
*/ protected static int mTileSize; protected static int mXTileCount;
protected static int mYTileCount; private static int mXOffset;
private static int mYOffset;
/**
* A hash that maps integer handles specified by the subclasser to the
* drawable that will be used for that reference
*/
private Bitmap[] mTileArray; /**
* A two-dimensional array of integers in which the number represents the
* index of the tile that should be drawn at that locations
*/
private int[][] mTileGrid; private final Paint mPaint = new Paint(); public TileView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle); TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.TileView); mTileSize = a.getInt(R.styleable.TileView_tileSize, 12);
a.recycle();
} public TileView(Context context, AttributeSet attrs) {
super(context, attrs); TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.TileView); mTileSize = a.getInt(R.styleable.TileView_tileSize, 12);
a.recycle();
}
/**
* Rests the internal array of Bitmaps used for drawing tiles, and
* sets the maximum index of tiles to be inserted
*
*
@param tilecount
*/
public void resetTiles(int tilecount) {
mTileArray = new Bitmap[tilecount];
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
mXTileCount = (int) Math.floor(w / mTileSize);
mYTileCount = (int) Math.floor(h / mTileSize); mXOffset = ((w - (mTileSize * mXTileCount)) / 2);
mYOffset = ((h - (mTileSize * mYTileCount)) / 2); mTileGrid = new int[mXTileCount][mYTileCount];
clearTiles();
} /**
* Function to set the specified Drawable as the tile for a particular
* integer key.
*
*
@param key