<ExchangeRateQueryAll.java>
1: package com.android.exchangeratequeryall;
2:
3: import java.io.BufferedReader;
4: import java.io.InputStreamReader;
5: import java.net.HttpURLConnection;
6: import java.net.URL;
7: import java.util.ArrayList;
8: import java.util.HashMap;
9:
10: import android.app.Activity;
11: import android.os.Bundle;
12: import android.util.Log;
13: import android.view.View;
14: import android.widget.Button;
15: import android.widget.ListView;
16: import android.widget.SimpleAdapter;
17: import android.widget.TextView;
18:
19: public class ExchangeRateQueryAll extends Activity {
20:
21: Button btnUpdate, btnExit;
22: TextView tvInformationTime;
23: ListView lvExchangeRate;
24: SimpleAdapter laSimple2;
25: String[] arrayCurrency;
26: String strRateInformation;
27: ArrayList<HashMap<String,String>> listItem = new ArrayList<HashMap<String,String>>();
28:
29: int itemIndex, start, end, counter;
30: URL url;
31: HttpURLConnection httpUrlconnection;
32: String WebURL = "http://rate.bot.com.tw/Pages/Static/UIP003.zh-TW.htm";
33: String urlData, informationTime;
34: String cashBuyPrice, cashSellPrice, currentBuyPrice, currentSellPrice;
35:
36: @Override
37: public void onCreate(Bundle savedInstanceState) {
38: super.onCreate(savedInstanceState);
39: setContentView(R.layout.main);
40: findViews();
41: getWebInformation();
42: setListViewControls();
43: setButtonClickListener();
44: }
45:
46: protected void findViews() {
47: btnUpdate = (Button) findViewById(R.id.updateBtn);
48: btnExit = (Button) findViewById(R.id.exitBtn);
49: tvInformationTime = (TextView) findViewById(R.id.informationtimeTextView);
50: lvExchangeRate = (ListView) findViewById(R.id.exchangerateListView);
51: }
52:
53: protected void getWebInformation(){
54: // 讀取網頁資料，並將資料存放在於 urlData
55: urlData = GetURLData();
56: // 剖析 urlData，擷取所選擇幣別的匯率資料
57: Parser(urlData);
58: }
59:
60:
61: protected void setListViewControls() {
62: laSimple2 = new SimpleAdapter( this,
63: listItem,
64: android.R.layout.simple_list_item_2,
65: new String[] { "Currency","RateInformation" },
66: new int[] { android.R.id.text1, android.R.id.text2 } );
67: lvExchangeRate.setAdapter(laSimple2);
68: }
69:
70: protected void setButtonClickListener() {
71:
72: btnUpdate.setOnClickListener(new Button.OnClickListener(){
73: public void onClick(View v) {
74: getWebInformation();
75: }
76: });
77:
78: btnExit.setOnClickListener(new Button.OnClickListener(){
79: public void onClick(View v) {
80: android.os.Process.killProcess(android.os.Process.myPid());
81: }
82: });
83:
84: }
85:
86: public String GetURLData(){
87: // 讀取網頁資料，並將資料存放在 urlData
88: urlData = null;
89: try {
90: url = new URL(WebURL);
91: httpUrlconnection = (HttpURLConnection) url.openConnection();
92: httpUrlconnection.setDoInput(true);
93: httpUrlconnection.setDoOutput(true);
94: httpUrlconnection.connect();
95: BufferedReader bufReader = new BufferedReader(
96: new InputStreamReader(httpUrlconnection.getInputStream()));
97: String decodedString;
98: while ((decodedString = bufReader.readLine()) != null) {
99: urlData += decodedString;
100: }
101: bufReader.close();
102: httpUrlconnection.disconnect();
103: }
104: catch(Exception e){
105: Log.e("ERROR", e.toString());
106: }
107: return urlData;
108: }
109:
110:
111: public void Parser( String urlData ){
112: arrayCurrency = getResources().getStringArray(R.array.money);
113: // 剖析 urlData，擷取所選擇幣別的匯率資料
114: String temp = null;
115: // 擷取【牌價最新掛牌時間】
116: end = 0;
117: start = urlData.indexOf("牌價最新掛牌時間：", end+1);
118: end = urlData.indexOf("</td>", start+1);
119: informationTime = urlData.substring(start+15, end);
120: tvInformationTime.setText("牌價最新掛牌時間："+informationTime);
121: // 從第一個幣別匯率資料開始擷取，直到所選擇的幣別匯率資料為止
122: listItem.clear();
123: for (counter = 0 ; counter < 19 ; counter++)
124: {
125: strRateInformation = "";
126: // 擷取【現金匯率－買入】價格資料
127: start = urlData.indexOf("<td class=\"decimal\">", end+1);
128: end = urlData.indexOf("</td>", start+1);
129: temp = urlData.substring(start+20, end);
130: if ( !temp.equals("-") )
131: cashBuyPrice = temp;
132: else
133: cashBuyPrice = "無資料";
134: strRateInformation = "【現金匯率】買入：" + cashBuyPrice;
135: // 擷取【現金匯率－賣出】價格資料
136: start = urlData.indexOf("<td class=\"decimal\">", end+1);
137: end = urlData.indexOf("</td>", start+1);
138: temp = urlData.substring(start+20, end);
139: if ( !temp.equals("-") )
140: cashSellPrice = temp;
141: else
142: cashSellPrice = "無資料";
143: strRateInformation += " 賣出：" + cashSellPrice;
144: // 擷取【即期匯率－買入】價格資料
145: start = urlData.indexOf("<td class=\"decimal\">", end+1);
146: end = urlData.indexOf("</td>", start+1);
147: temp = urlData.substring(start+20, end);
148: if ( !temp.equals("-") )
149: currentBuyPrice = temp;
150: else
151: currentBuyPrice = "無資料";
152: strRateInformation += "\n【即期匯率】買入：" + currentBuyPrice;
153: // 擷取【即期匯率－賣出】價格資料
154: start = urlData.indexOf("<td class=\"decimal\">", end+1);
155: end = urlData.indexOf("</td>", start+1);
156: temp = urlData.substring(start+20, end);
157: if ( !temp.equals("-") )
158: currentSellPrice = temp;
159: else
160: currentSellPrice = "無資料";
161: strRateInformation += " 賣出：" + currentSellPrice;
162: // put data into listItem
163: HashMap<String,String> item = new HashMap<String,String>();
164: item.put( "Currency", arrayCurrency[counter]);
165: item.put( "RateInformation",strRateInformation);
166: listItem.add( item );
167: }
168: }
169:
170: }
<main.xml>
1: <?xml version="1.0" encoding="utf-8"?>
2: <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
3: android:id="@+id/LinearLayout1"
4: android:layout_width="match_parent"
5: android:layout_height="fill_parent"
6: android:orientation="vertical" >
7:
8: <TextView
9: android:id="@+id/textView1"
10: android:layout_width="match_parent"
11: android:layout_height="wrap_content"
12: android:gravity="center"
13: android:text="@string/strTitle"
14: android:textSize="24dp" />
15:
16: <TextView
17: android:id="@+id/informationtimeTextView"
18: android:layout_width="match_parent"
19: android:layout_height="wrap_content"
20: android:text="@string/strInformationTime" />
21:
22: <TextView
23: android:id="@+id/textView2"
24: android:layout_width="wrap_content"
25: android:layout_height="wrap_content"
26: android:text="@string/strInformationSource" />
27:
28: <LinearLayout
29: android:id="@+id/linearLayout2"
30: android:layout_width="match_parent"
31: android:layout_height="wrap_content" >
32:
33: <Button
34: android:id="@+id/updateBtn"
35: android:layout_width="wrap_content"
36: android:layout_height="wrap_content"
37: android:text="@string/strUpdate" />
38:
39: <Button
40: android:id="@+id/exitBtn"
41: android:layout_width="wrap_content"
42: android:layout_height="wrap_content"
43: android:text="@string/strExit" />
44:
45: </LinearLayout>
46:
47: <ListView
48: android:id="@+id/exchangerateListView"
49: android:layout_width="match_parent"
50: android:layout_height="wrap_content" >
51:
52: </ListView>
53:
54: </LinearLayout>
<strings.xml>
1: <?xml version="1.0" encoding="utf-8"?>
2: <resources>
3:
4: <string name="hello">Hello World, ExchangeRateQueryAll!</string>
5: <string name="app_name">匯率(全部)</string>
6: <string name="strTitle">臺灣銀行牌告匯率</string>
7: <string name="strInformationSource">資料來源：臺灣銀行</string>
8: <string name="strExit">離開</string>
9: <string name="strInformationTime">牌價最新掛牌時間：</string>
10: <string name="strUpdate">取得最新報價資料</string>
11:
12: </resources>
<arrays.xml>
1: <?xml version="1.0" encoding="UTF-8"?>
2: <resources>
3: <string-array name="money">
4: <item>美金(USD)</item>
5: <item>港幣(HKD)</item>
6: <item>英鎊(GBP)</item>
7: <item>澳幣(AUD)</item>
8: <item>加拿大幣(CAD)</item>
9: <item>新加坡幣(SGD)</item>
10: <item>瑞士法郎(CHF)</item>
11: <item>日圓(JPY)</item>
12: <item>南非幣(ZAR)</item>
13: <item>瑞典幣(SEK)</item>
14: <item>紐元(NZD)</item>
15: <item>泰幣(THB)</item>
16: <item>菲國比索(PHP)</item>
17: <item>印尼幣(IDR)</item>
18: <item>歐元(EUR)</item>
19: <item>韓元(KRW)</item>
20: <item>越南盾(VND)</item>
21: <item>馬來幣(MYR)</item>
22: <item>人民幣(CNY)</item>
23: </string-array>
24: </resources>
<AndroidManifest.xml>
1: <?xml version="1.0" encoding="utf-8"?>
2: <manifest xmlns:android="http://schemas.android.com/apk/res/android"
3: package="com.android.exchangeratequeryall"
4: android:versionCode="1"
5: android:versionName="1.0" android:installLocation="auto">
6:
7: <uses-sdk android:minSdkVersion="8" />
8: <uses-permission android:name="android.permission.INTERNET"/>
9:
10: <application
11: android:icon="@drawable/currency"
12: android:label="@string/app_name" >
13: <activity
14: android:name=".ExchangeRateQueryAll"
15: android:label="@string/app_name" >
16: <intent-filter>
17: <action android:name="android.intent.action.MAIN" />
18:
19: <category android:name="android.intent.category.LAUNCHER" />
20: </intent-filter>
21: </activity>
22: </application>
23:
24: </manifest>
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