程序小白----AndroidStudio之飞机大战
16lz
2021-01-23
程序小白—-AndroidStudio之飞机大战
今天我们开始一些Android的学习
一：菜单类
新建一个菜单类用于定义一些变量和方法：
package com.example.xiao.fly;import android.graphics.Bitmap;import android.graphics.Canvas;import android.graphics.Paint;import android.graphics.Rect;import android.view.SurfaceHolder;//以上为必要的包/** * Created by Xiao on 2017/5/24. */public class GameMeun { private Bitmap bmpMeunBG; //菜单背景图片 private Bitmap bmpLogo; //LOGO private Bitmap bmpButton; //按钮 private Bitmap bmpText; //文本 private Rect rect; //创建一个矩形 用以方置LOGOpublic GameMeun(Bitmap bmpMeunBG,Bitmap bmpLogo,Bitmap bmpButton,Bitmap bmpText){ this.bmpMeunBG=bmpMeunBG; this.bmpLogo=bmpLogo; this.bmpButton=bmpButton; this.bmpText=bmpText; rect = new Rect(0,GameSurface.hight/3,GameSurface.width,GameSurface.hight/3+GameSurface.hight/5);} //这是关于矩形的大小位置设计/*以下是关于该方法的API文档解释* * @param left The X coordinate of the left side of the rectangle * @param top The Y coordinate of the top of the rectangle * @param right The X coordinate of the right side of the rectangle * @param bottom The Y coordinate of the bottom of the rectangle */ public Rect(int left, int top, int right, int bottom) { this.left = left; this.top = top; this.right = right; this.bottom = bottom; }*/ /** * 画背景图片 * @param canvas * @param paint */ public void draw(Canvas canvas , Paint paint){ //画背景图片 canvas.drawBitmap(bmpMeunBG,0,0,paint); //画logo canvas.drawBitmap(bmpLogo,null,rect,paint); //画按钮 int x = GameSurface.hight/3*2; int y = GameSurface.width/2-bmpButton.getWidth()/2; canvas.drawBitmap(bmpButton,y,x,paint); //前宽厚高 //画文本 int z = GameSurface.width/2-bmpText.getWidth()/2; canvas.drawBitmap(bmpText,z,x,paint); };}二：面板类：
package com.example.xiao.fly;import android.content.Context;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.Canvas;import android.graphics.Paint;import android.view.SurfaceHolder;import android.view.SurfaceView;/** * Created by Xiao on 2017/5/24. */public class GameSurface extends SurfaceView implements SurfaceHolder.Callback{//定义一些必要的变量 private Canvas canvas;//画布 private Paint paint;//画笔 private SurfaceHolder surfaceHolder; public static int width; public static int hight; //Meun相关的 //来自主菜单的一些变量 private GameMeun gameMenu; private Bitmap bmpMeunBG; private Bitmap bmpLogo; private Bitmap bmpButton; private Bitmap bmpText; public GameSurface(Context context) { super(context); surfaceHolder = this.getHolder(); //初始化surfaceHoldersurfaceHolder.addCallback(this);//添加回调函数paint = new Paint(); //初始化画笔paint.setAntiAlias(true); //取消锯齿 }@Overridepublic void surfaceCreated(SurfaceHolder holder) {width=this.getWidth(); //获取面板的宽度hight=this.getHeight(); //获取面板的高度intiBitmap();//初始化的方法new Thread(new Runnable() { @Override public void run() { Mydraw(); ///进入线程通过Mydraw开始写入到视图中 } }).start(); } @Override public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { } @Override public void surfaceDestroyed(SurfaceHolder holder) { } /** * 绘图方法 */ private void Mydraw() { canvas = surfaceHolder.lockCanvas(); //创建视图到画板上 gameMenu.draw(canvas,paint); //把所有的元素都布局到画板上 if (canvas!=null){ surfaceHolder.unlockCanvasAndPost(canvas); } } /** * 初始化图片 */ private void intiBitmap() { //把图片转化为Bitmap格式 bmpMeunBG = BitmapFactory.decodeResource( this.getResources(),R.drawable.mainmenu ); bmpLogo = BitmapFactory.decodeResource( this.getResources(),R.drawable.logo ); bmpButton = BitmapFactory.decodeResource( this.getResources(),R.drawable.menustart ); bmpText = BitmapFactory.decodeResource( this.getResources(),R.drawable.starttext ); //初始化对象 gameMenu = new GameMeun(bmpMeunBG,bmpLogo,bmpButton,bmpText); }}更多相关文章
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