KeyEvent -----------控制飞机上下左右飞行--------------------

两个Java。第一个负责绘制飞机，主Activity负责控制飞机的初始坐标和飞行，不需要layout布局

------------------绘制飞机---------------------------

PlaneView.java

package com.example.admin.webchanjian;

import android.content.Context;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.Canvas;import android.graphics.Paint;import android.view.View;

/** * Created by admin on 2016/10/6. */public class PlainView extends View {    public float currentX;    public float currentY;    Bitmap plane;    public PlainView(Context context){        super(context);        plane= BitmapFactory.decodeResource(context.getResources(),R.drawable.plane);        setFocusable(true);    }    @Override    public void onDraw(Canvas canvas){        super.onDraw(canvas);        Paint p=new Paint();        canvas.drawBitmap(plane,currentX,currentY,p);    }}

-----------------------------控制飞机飞行--------------------

MainActivity.java

//-------------------Playing Plane------------------------------    private  int speed=10;@Overrideprotected void onCreate(@Nullable Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    //去掉窗口标题    requestWindowFeature(Window.FEATURE_NO_TITLE);    //全屏显示    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,WindowManager.LayoutParams.FLAG_FULLSCREEN);    //创建PlaneView组件    final PlainView plainView=new PlainView(this);    setContentView(plainView);    plainView.setBackgroundResource(R.drawable.back);    //获取窗口管理器    WindowManager windowManager=getWindowManager();    Display display=windowManager.getDefaultDisplay();    DisplayMetrics displayMetrics=new DisplayMetrics();    //获取屏幕宽和高    display.getMetrics(displayMetrics);    //设置plane的初始位置    plainView.currentX=displayMetrics.widthPixels/2;    plainView.currentY=displayMetrics.heightPixels-40;    //为PlaneView组件的键盘事件绑定监听器    plainView.setOnKeyListener(new View.OnKeyListener() {        @Override        public boolean onKey(View v, int keyCode, KeyEvent event) {            switch (event.getKeyCode()){                //下移                case KeyEvent.KEYCODE_S:                    plainView.currentY+=speed;                    break;                //上移                case  KeyEvent.KEYCODE_W:                    plainView.currentY-=speed;                    break;                //左移                case KeyEvent.KEYCODE_A:                    plainView.currentX-=speed;                    break;                case KeyEvent.KEYCODE_D:                    plainView.currentX+=speed;                    break;            }            //通知PlaneView组件重绘            plainView.invalidate();            return true;        }    });

}