1 package com.example.flexd7;
2
3 import android.os.Bundle;
4 import android.annotation.SuppressLint;
5 import android.app.Activity;
6 import android.content.res.Resources;
7 import android.util.Log;
8 import android.view.Menu;
9 import android.view.View;
10 import android.view.View.OnClickListener;
11 import android.widget.Button;
12 import android.widget.ImageView;
13
14 public class MainActivity extends Activity {
15
16 private Button bt1;
17 private ImageView iv1;
18 private ImageView iv2;
19 private ImageView iv3;
20
21 private int[] poker = new int[]{R.drawable.p01,R.drawable.p02,R.drawable.p03};
22
23 @Override
24 protected void onCreate(Bundle savedInstanceState) {
25 super.onCreate(savedInstanceState);
26 setContentView(R.layout.activity_main);
27
28 //Widgets
29 bt1 = (Button)findViewById(R.id.bt1);
30 iv1 = (ImageView)findViewById(R.id.iv1);
31 iv2 = (ImageView)findViewById(R.id.iv2);
32 iv3 = (ImageView)findViewById(R.id.iv3);
33
34 //Listener
35 bt1.setOnClickListener(buttonOnClickListener);
36 iv1.setOnClickListener(imageViewOnClickListener);
37 iv2.setOnClickListener(imageViewOnClickListener);
38 iv3.setOnClickListener(imageViewOnClickListener);
39
40 //洗牌
41 //random();
42 }
43
44 /**
45 * Button监听
46 * Button点击的时候，设置三张牌显示为背面，并且不透明 就是可以看见，然后洗牌，牌面值存在数组里
47 */
48 private OnClickListener buttonOnClickListener = new OnClickListener(){
49
50 //android自带lint工具 帮助提升代码
51 @SuppressLint("NewApi")
52 @Override
53 public void onClick(View v) {
54 //iv1.setImageResource(R.drawable.p04);
55 iv1.setImageDrawable(getResources().getDrawable(R.drawable.p04));
56 iv1.setAlpha(255);
57
58 //iv2.setImageResource(R.drawable.p04);
59 iv2.setImageDrawable(getResources().getDrawable(R.drawable.p04));
60 iv2.setAlpha(255);
61
62 //iv3.setImageResource(R.drawable.p04);
63 iv3.setImageDrawable(getResources().getDrawable(R.drawable.p04));
64 iv3.setAlpha(255);
65
66 //洗牌
67 random2();
68 }
69 };
70
71 /**
72 * ImageView监听
73 * A牌点击则设置BC牌为透明，并且分别读入数组中的牌面值
74 */
75 private OnClickListener imageViewOnClickListener = new OnClickListener() {
76
77 @SuppressLint("NewApi")
78 @Override
79 public void onClick(View v) {
80 Log.i("Tag", "imageViewOnClick View:" + v.getId());
81 //设置其他两个为透明
82 if(v.getId()==R.id.iv1){
83 iv2.setImageAlpha(100);
84 iv3.setImageAlpha(100);
85 }else if(v.getId()==R.id.iv2){
86 iv1.setImageAlpha(100);
87 iv3.setImageAlpha(100);
88 }else if(v.getId()==R.id.iv3){
89 iv2.setImageAlpha(100);
90 iv1.setImageAlpha(100);
91 }else {
92 }
93 iv1.setImageResource(poker[0]);
94 iv2.setImageResource(poker[1]);
95 iv3.setImageResource(poker[2]);
96 }
97 };
98
99
100 /**
101 * 洗牌方法1
102 * Math.random()是产生[0,1)的随机数,(int)(Math.random()*2)就随机产生0或1
103 */
104 private void random(){
105 for (int i = 0; i < 3; i++) {
106 int change = (int) (Math.random() * 2);//0、1、2三张牌依次跟随机到的0或1调换
107 int temp = poker[i];
108 poker[i] = poker[change];
109 poker[change] = temp;
110 }
111
112 //iv1.setImageResource(poker[0]);
113 //iv2.setImageResource(poker[1]);
114 //iv3.setImageResource(poker[2]);
115
116 //iv1.setImageDrawable(getResources().getDrawable(poker[0]));
117 //iv2.setImageDrawable(getResources().getDrawable(poker[1]));
118 //iv3.setImageDrawable(getResources().getDrawable(poker[2]));
119 }
120
121 /**
122 * 洗牌方法2
123 */
124 private void random2(){
125 int change = ((int)(Math.random()*10)%3);//Math.random()*10产生小于10随机数，%3产生小于3余数
126 for (int i = 0; i < 3; i++) {//0、1、2三张牌依次跟随机到的 确定的0或1或2调换
127 int temp = poker[i];
128 poker[i] = poker[change];
129 poker[change] = temp;
130 }
131 }
132
133 @Override
134 public boolean onCreateOptionsMenu(Menu menu) {
135 // Inflate the menu; this adds items to the action bar if it is present.
136 getMenuInflater().inflate(R.menu.activity_main, menu);
137 return true;
138 }
139
140 }
View Code
