<?xml version="1.0" encoding="utf-8"?><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" tools:context=".MainActivity"> <ImageView android:id="@+id/imageView" android:layout_width="80dp" android:layout_height="80dp" android:src="@drawable/diglett" android:visibility="gone" /> <Button android:id="@+id/button" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_centerHorizontal="true" android:layout_marginBottom="45dp" android:text="点击开始" /> <TextView android:id="@+id/textView" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentTop="true" android:layout_centerHorizontal="true" android:layout_marginTop="20dp" android:textColor="#ff0000" android:textSize="20sp" /></RelativeLayout>
public class MainActivity extends AppCompatActivity implements View.OnClickListener, View.OnTouchListener { public static final int CODE = 999; public static final int RANDOM_NUMBER = 500; private TextView mTextView; private Button mButton; private ImageView mImageView; /** * 定义地鼠的位置 */ public int[][] mPosition = new int[][]{ {342, 180}, {432, 880}, {521, 256}, {429, 780}, {456, 976}, {145, 665}, {123, 678}, {564, 567}, }; private int mTotalCount, mSuccessCount = 0; public static final int MAX_COUNT = 10; private MyHandler mMyHandler = new MyHandler(this); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); } private void initView() { mTextView = findViewById(R.id.textView); mButton = findViewById(R.id.button); mImageView = findViewById(R.id.imageView); mButton.setOnClickListener(this); mImageView.setOnTouchListener(this); } @Override public void onClick(View v) { switch (v.getId()) { case R.id.button: start(); break; } } private void start() { mTextView.setText("游戏开始了！"); mButton.setText("游戏中..."); mButton.setEnabled(false); //发送消息 next(RANDOM_NUMBER); } private void next(int delayTime) { //产生一个0——数组长度的随机数 int positon = new Random().nextInt(mPosition.length); Message message = Message.obtain(); message.what = CODE; message.arg1 = positon; mMyHandler.sendMessageDelayed(message, delayTime); //每发送一次消息，总数就加一 mTotalCount++; } /** * 图片点击事件 * @param v * @param event * @return */ @Override public boolean onTouch(View v, MotionEvent event) { //每次触碰到地鼠，则地鼠消失，打到地鼠的数量加一 v.setVisibility(View.GONE); mSuccessCount++; mTextView.setText("打到了" + mSuccessCount + "只，共" + MAX_COUNT + "只"); return false; } public static class MyHandler extends Handler { private final WeakReference<MainActivity> mWeakReference; public MyHandler(MainActivity activity) { this.mWeakReference = new WeakReference<>(activity); } @Override public void handleMessage(Message msg) { MainActivity activity = mWeakReference.get(); super.handleMessage(msg); switch (msg.what) { case CODE: if (activity.mTotalCount > MAX_COUNT) { //游戏结束，初始化游戏 activity.clear(); Toast.makeText(activity, "地鼠打完了！", Toast.LENGTH_SHORT).show(); return; } else { int position = msg.arg1; activity.mImageView.setX(activity.mPosition[position][0]); activity.mImageView.setY(activity.mPosition[position][1]); activity.mImageView.setVisibility(View.VISIBLE); //在随机位置上显示地鼠之后，再次发送消息 int randomTime = new Random().nextInt(RANDOM_NUMBER) + RANDOM_NUMBER; activity.next(randomTime); } break; } } } /** * 游戏结束，初始化游戏 */ private void clear() { mTotalCount = 0; mSuccessCount = 0; mImageView.setVisibility(View.GONE); mButton.setText("点击开始"); mButton.setEnabled(true); }} 
