本文實例為大家分享了Android使用Handler實現打地鼠的具體代碼，供大家參考，具體內容如下
1.實現效果
如下圖所示：
2.代碼實現
新建一個名為DiglettDemo的項目，activity_main.xml代碼如下：
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
<?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="點擊開始" /> <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> |
MainActivity.class代碼如下：
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
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; /** * 定義地鼠的位置 */ 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("游戲開始了！"); mButton.setText("游戲中..."); mButton.setEnabled(false); //發送消息 next(RANDOM_NUMBER); } private void next(int delayTime) { //產生一個0——數組長度的隨機數 int positon = new Random().nextInt(mPosition.length); Message message = Message.obtain(); message.what = CODE; message.arg1 = positon; mMyHandler.sendMessageDelayed(message, delayTime); //每發送一次消息，總數就加一 mTotalCount++; } /** * 圖片點擊事件 * @param v * @param event * @return */ @Override public boolean onTouch(View v, MotionEvent event) { //每次觸碰到地鼠，則地鼠消失，打到地鼠的數量加一 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) { //游戲結束，初始化游戲 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); //在隨機位置上顯示地鼠之后，再次發送消息 int randomTime = new Random().nextInt(RANDOM_NUMBER) + RANDOM_NUMBER; activity.next(randomTime); } break; } } } /** * 游戲結束，初始化游戲 */ private void clear() { mTotalCount = 0; mSuccessCount = 0; mImageView.setVisibility(View.GONE); mButton.setText("點擊開始"); mButton.setEnabled(true); }} |
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持服務器之家。
原文鏈接：https://blog.csdn.net/qingjianduoyun/article/details/80634068
