Android example source code file (CanvasSprite.java)

This example Android source code file (CanvasSprite.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

android, bitmap, canvassprite, drawing, graphics, paint, renderable, ui

The CanvasSprite.java Android example source code

/*
 * Copyright (C) 2009 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.spritemethodtest;

import android.graphics.Bitmap;
import android.graphics.Canvas;

/**
 * The Canvas version of a sprite.  This class keeps a pointer to a bitmap
 * and draws it at the Sprite's current location.
 */
public class CanvasSprite extends Renderable {
    private Bitmap mBitmap;
    
    public CanvasSprite(Bitmap bitmap) {
        mBitmap = bitmap;
    }
    
    public void draw(Canvas canvas) {
        // The Canvas system uses a screen-space coordinate system, that is,
        // 0,0 is the top-left point of the canvas.  But in order to align
        // with OpenGL's coordinate space (which places 0,0 and the lower-left),
        // for this test I flip the y coordinate.
        canvas.drawBitmap(mBitmap, x, canvas.getHeight() - (y + height), null);
    }
}