<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" tools:context=".GameActivity" > <www.csdn.net.tetris.view.GameView  android:id="@+id/gameview"  android:layout_width="wrap_content"  android:layout_height="wrap_content"/> <Button  android:id="@+id/btn_left"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:layout_alignLeft="@+id/gameview"  android:layout_alignParentBottom="true"  android:text="@string/btn_text" /> <Button  android:id="@+id/btn_right"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:layout_alignBottom="@+id/gameview"  android:layout_centerHorizontal="true"  android:layout_alignParentBottom="true"  android:text="@string/btn_right" /></RelativeLayout>

package www.csdn.net.tetris.domain;import www.csdn.net.tetris.view.GameView;public class Block { private int x=20,y=20; public GameView gameView; public Block(GameView gameView){  this.gameView=gameView; } //向左移動 public void moveLeft(){  x-=10;  gameView.invalidate(); } //向右移動 public void moveRight(){  x+=10;  gameView.invalidate(); } //下落方法  public void downLoad(){   y+=10;   gameView.invalidate();//重新繪制  } public int getX() {  return x; } public void setX(int x) {  this.x = x; } public int getY() {  return y; } public void setY(int y) {  this.y = y; }}

package www.csdn.net.tetris.view;import android.content.Context;import android.graphics.Canvas;import android.graphics.Paint;import android.os.Handler;import android.os.Message;import android.util.AttributeSet;import android.view.View;import www.csdn.net.tetris.domain.Block;public class GameView extends View { public static Block block; public Handler handler; //定義方向 public static int dir=-1; //上下左右 public static final int DIRUP=1; public static final int DIRDOWN=2; public static final int DIRLEFT=3; public static final int DIRRIGHT=4; public GameView(Context context,AttributeSet attrs) {  super(context);  //創建俄羅斯方塊對象  this.block=new Block(this);  handler=new Handler(){   public void handleMessage(Message msg) {    super.handleMessage(msg);    switch (msg.what) {    case DIRLEFT:     GameView.block.moveLeft();     break;    case DIRRIGHT:     GameView.block.moveRight();     break;    default:     GameView.block.downLoad();     break;    }   }  };  //創建線程  new Thread (new Runnable(){   @Override   public void run() {    while(true){     try{      System.out.println("子線程名稱：：："+Thread.currentThread().getName());      //block.downLoad();      Thread.sleep(1000);      handler.sendEmptyMessage(dir);     }catch(Exception e){      e.printStackTrace();     }    }   }  }).start(); } @Override protected void onDraw(Canvas canvas) {  super.onDraw(canvas);  //設置了畫布的顏色  canvas.drawARGB(255, 0, 0, 255);  //設置一個畫筆  Paint paint=new Paint();  paint.setARGB(255, 255, 0, 0);  canvas.drawCircle(block.getX(), block.getY(), 10, paint); }}

package com.example.tetris;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.view.Menu;import android.view.View;import android.widget.Button;import android.widget.Toast;import www.csdn.net.tetris.domain.Block;import www.csdn.net.tetris.view.GameView;public class GameActivity extends Activity {//聲明按鈕控件public Button btn_start;public Button btn_right;public Button btn_left;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_game);//獲取按鈕控件btn_start=(Button) findViewById(R.id.btn_start);btn_start.setOnClickListener(new MyOnClickListener());System.out.println("主線程：：："+Thread.currentThread().getName());}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}class MyOnClickListener implements View.OnClickListener{@Overridepublic void onClick(View v) {int id=v.getId();switch (id) {case R.id.btn_start://GameView gameView=new GameView(GameActivity.this,null);GameActivity.this.setContentView(R.layout.activity_layout);//獲取控件btn_right=(Button) findViewById(R.id.btn_right);btn_left=(Button) findViewById(R.id.btn_left);btn_left.setOnClickListener(new MyOnClickListener());btn_right.setOnClickListener(new MyOnClickListener());break;case R.id.btn_left:Toast.makeText(GameActivity.this, "向左移動", Toast.LENGTH_LONG).show();GameView.block.moveLeft();//GameView.dir=GameView.DIRLEFT;break;case R.id.btn_right:Toast.makeText(GameActivity.this, "向右移動", Toast.LENGTH_LONG).show();GameView.block.moveRight();//GameView.dir=GameView.DIRRIGHT;break;default:break;}}}}