半小时移植Flash游戏到Android上
继续研究国内的移动Web开发平台Rexsee。。
该平台已经正式开源，rexsee社区可以查看全部的扩展API说明与开发源码。。http://www.rexsee.com/
有一段代码，介绍如何将Flash游戏移植到Android手机上，并可以通过虚拟键盘或者方向传感器解决操控问题。所有代码是用HTML和JS写的，包括全部HTML，总共只有100多行。步骤如下：
- 准备键盘图片，这里用到了6个键，左、右、空格（跳跃）、退出、消息和Rexsee市场键，Rexsee提供了几套现成的键可以下载。将键的图片放到asset/keyboard/default/文件夹中，这样用"keyboard/default"来指定theme参数即可，否则要用放图片的文件夹的完整路径（本地SD卡或网络地址均可）来制定theme参数。文件名就是键值，后缀名是.png
- 将美羊羊卡丁车的swf文件放在asset/文件夹中
- 将横幅图片（这里是banner.png）和启动按钮图片（这里是startNow.png）放在asset/文件夹中
- 当然还有图标要放在res中，还要将string.xml中的首页地址设为file:///android_asset/index.html。这是唯一的一个程序文件，100多行。
- 这是离线版的，所以要下载Rexsee的JAR包，自己用Eclipse编译，如果嫌麻烦，可以在线编译一个首页地址指向服务器某个网页地址，然后将下面的index.html的代码放在这个文件中（有些路径要改，比如图片什么的），如果也想离线玩，可以在首次载入后将swf文件和图片自己或者用rexseeClient下载到本地。当然也可以不下载，就在线玩。
先看一下res/values/string.xml
<?xml version="1.0" encoding="utf-8"?> <resources> <string name="app_name">美羊羊卡丁车</string> <string name="app_home">file:///android_asset/index.html</string> <string name="rexsee_home">http://www.rexsee.com/flash/index.php</string> </resources>
在看一下AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="MeiYangYangKaDingChe.rexsee" android:versionCode="1" android:versionName="1.0"> <supports-screens android:largeScreens="true" android:normalScreens="true" android:smallScreens="true" android:anyDensity="true" /> <application android:icon="@drawable/icon" android:label="@string/app_name" android:theme="@android:style/Theme.NoTitleBar"> <activity android:name="rexsee.activity.RexseeActivity" android:configChanges="orientation|keyboardHidden" android:launchMode="singleTop"> <intent-filter><action android:name="android.intent.action.MAIN" /><category android:name="android.intent.category.LAUNCHER" /></intent-filter> </activity> </application> <uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/> </manifest>
最后是asset/index.html源的代码
1: <HTML>
2: <HEAD>
3: <TITLE>美羊羊卡丁车</TITLE>
4: <META http-equiv=Content-Type content=text/html charset=GB2312>
5: <META http-equiv=Expires content=0>
6: <META http-equiv=Cache-Control content=no-cache>
7: <META http-equiv=Pragma content=no-cache>
8: <SCRIPT type=text/javascript>
9:
10: function startFlashGame(para){
11: //开始Flash游戏
12: rexseeScreen.setScreenOrientation(para.orientation); //将屏幕方向设为水平
13: if ( para.sensor ) {
14: rexseeOrientation.setRate('fastest'); //将传感器敏感程度设为最高
15: rexseeOrientation.start(); //启动传感器
16: } else {
17: rexseeOrientation.setRate('normal'); //将传感器敏感程度设为正常
18: rexseeOrientation.stop(); //停止传感器
19: }
20: rexseeFlash.clearKeyboard(); //清空键盘
21: if ( para.leftKeyboard ) rexseeFlash.setLeftKeyboard(para.leftKeys,para.leftKeyTheme,para.leftKeyboardStyle,para.leftKeyRowStyle,para.leftKeyStyle,para.leftKeyPressedStyle); //设置左键盘
22: if ( para.rightKeyboard ) rexseeFlash.setRightKeyboard(para.rightKeys,para.rightKeyTheme,para.rightKeyboardStyle,para.rightKeyRowStyle,para.rightKeyStyle,para.rightKeyPressedStyle); //设置右键盘
23: rexseeFlash.setSwfStyle(para.swfStyle); //设置Flash游戏区域的样式
24: rexseeFlash.show(para.swf,para.dialogStyle); //设置对话框样式并启动对话框
25: }
26: var paraKeyboardVersion = {
27: orientation: "landscape", //屏幕方向
28: sensor: false, //是否启用方向传感器
29: //设置左边键盘
30: leftKeyboard: false, //是否启用左键盘
31: leftKeys: "", //左键盘的按键，数字序列，同一行按键使用逗号分隔，不同行使用分号分隔，Rexsee自定义按键包括-2,-3,-4,-5，其余按键请参考http://developer.android.com/reference/android/view/KeyEvent.html
32: leftKeyTheme: "", //左键盘的样式，字符串，应在asset目录下创建以该字符串命名的文件夹，然后将按键图片（键值.png）放在该文件夹
33: leftKeyboardStyle: "", //左键盘的样式
34: leftKeyRowStyle: "", //左键盘中每一行的样式
35: leftKeyStyle: "", //左键盘中每个按键的样式
36: leftKeyPressedStyle: "", //左键盘中每个按键被按下时的样式
37: //设置右边键盘，参看上面左键盘说明
38: rightKeyboard: true,
39: rightKeys: "-1,-5;-2,62;21,22",
40: rightKeyTheme: "keyboard/default",
41: rightKeyboardStyle: "border-left-width:5px;border-left-color:#aaaaaa+#000000/2;background-color:#000000;",
42: rightKeyRowStyle: "",
43: rightKeyStyle: "",
44: rightKeyPressedStyle: "",
45: //设置Flash区域的样式
46: swfStyle: "",
47: //设置对话框的样式
48: dialogStyle: "",
49: //设置Flash游戏的地址
50: swf: "game.swf"
51: };
52: var paraSensorVersion = {
53: orientation: "landscape",
54: sensor: true,
55: leftKeyboard: false,
56: leftKeys: "",
57: leftKeyTheme: "",
58: leftKeyboardStyle: "",
59: leftKeyRowStyle: "",
60: leftKeyStyle: "",
61: leftKeyPressedStyle: "",
62: rightKeyboard: true,
63: rightKeys: "-1;-5;-2;62",
64: rightKeyTheme: "keyboard/default",
65: rightKeyboardStyle: "border-left-width:5px;border-left-color:#aaaaaa+#000000/2;background-color:#000000;",
66: rightKeyRowStyle: "",
67: rightKeyStyle: "",
68: rightKeyPressedStyle: "",
69: swfStyle: "",
70: dialogStyle: "",
71: swf: "game.swf"
72: };
73:
74: window.onRexseeReady = function(){
75: //在页面装载完毕时运行
76: if ( rexseeBuild.getSdk()<8) {
77: alert("对不起，您的手机软件版本太低，不能运行该游戏，请使用Android2.2以上版本运行该游。");
78: rexseeApplication.quit();
79: }
80: if (!rexseeFlash.isReady()){
81: rexseeDialog.confirm("Adobe Flash Player", "Adobe Flash Player没有安装，无法运行该游戏。是否现在安装？","现在安装","退出程序","javascript:rexseeBrowser.open('http://www.rexsee.com/flash/flashplayer/download.php');rexseeApplication.exit();","javascript:rexseeApplication.exit();");
82: }
83: rexseeScreen.setScreenAlwaysOn(true); //总是点亮屏幕
84: rexseeScreen.setScreenOrientation('portrait'); //将将屏幕方向设为垂直
85: rexseeStatusBar.setStyle("visibility:hidden;"); //隐藏状态栏
86: }
87: window.onAjaxReturned = function(ajaxUrl,response){
88: response = unescape(response);
89: if ( ajaxUrl == headerUrl) document.getElementById("header").innerHTML = response;
90: else if ( ajaxUrl == footerUrl) document.getElementById("footer").innerHTML = response;
91: else if ( ajaxUrl == jsUrl) eval(response);
92: }
93: window.onFlashDialogDismissed = function(){
94: //在退出Flash游戏返页面时运行
95: rexseeScreen.setScreenOrientation('portrait'); //将屏幕方向设为垂直
96: }
97: window.onbeforeunload = function(){
98: //在退出页面时运行
99: rexseeScreen.setScreenOrientation('auto'); //将屏幕方向设为自动
100: rexseeOrientation.stop(); //停止方向传感器
101: }
102:
103: var version = "";
104: //Rexsee新增按键的回调函数
105: window.onKeyboardHelpPressed = function(){
106: //对应键值：-2
107: if ( version == "keyboard" ) alert("左右键向左或向右，空格键跳跃。");
108: else if ( version == "sensor" ) alert("左右倾斜手机向左或向右，虚拟键盘的空格键跳跃。");
109: }
110: window.onKeyboardQaPressed = function(){
111: //对应键值：-3
112: alert("QA pressed.");
113: }
114: window.onKeyboardHomePressed = function(){
115: //对应键值：-4
116: if ( window.confirm("要退出游戏吗？") ) {
117: rexseeFlash.hide();
118: rexseeApplication.quit();
119: }
120: }
121: window.onKeyboardCancelPressed = function(){
122: //对应键值：-5
123: if ( window.confirm("要退出游戏吗？") ) {
124: rexseeFlash.hide();
125: }
126: }
127:
128: window.onOrientationChanged = function(){
129: //如果启用方向传感器，在回调函数中向Flash游戏发送键值
130: var x = Math.round(rexseeOrientation.getLastKnownX());
131: var y = Math.round(rexseeOrientation.getLastKnownY());
132: var z = Math.round(rexseeOrientation.getLastKnownZ());
133: if ( y > 10 ) {
134: rexseeFlash.keyDown(21);
135: } else if ( y<-10){
136: rexseeFlash.keyDown(22);
137: } else {
138: rexseeFlash.keyUp(21);
139: rexseeFlash.keyUp(22);
140: }
141: }
142: </SCRIPT>
143: <STYLE>
144: body { margin:0px; background-color:#eeeeee;}
145: .imageButton { width:100px;height:100px; border:none; margin: 0 0 0 10; }
146: .section {border:1px solid;border-color:#f7f7f7 #7f9db5 #7f9db5 #f7f7f7;background-color:#ffffff;padding:15px;}
147: .gameTitle { font-size:24px;font-weight:bold; color:#F01D17;margin:15 0 15 0;}
148: .gameIntro {}
149: .gameVersion { font-size:20px;font-weight:bold; color:#F01D17;margin:10 0 15 0;}
150: .gameGuide { margin: 0 0 10 0; }
151: #copyright {background-color:#444444;padding:5px;color:white;font-size:10px;}
152: </STYLE>
153: </HEAD>
154: <BODY>
155: <a href="http://www.rexsee.com/flash/index.php"><img src='banner.png' width=100% border=0></a>
156:
157: <div class=section>
158: <div class=gameTitle>美羊羊卡丁车</div>
159: <div class=gameIntro>
160: 可爱的美羊羊是赛车高手哦，来体验下美羊羊马路杀手的感觉吧，美羊羊开车的速度可是会越来越快哦，小心呀！
161: <br><br>游戏目标：帮助美羊羊躲避路障，安全抵达终点。
162: <br>
163: </div>
164: </div>
165: <div class=section>
166: <table width=100%><tr>
167: <td valign=top>
168: <div class=gameVersion>虚拟键盘版</div>
169: <div class=gameGuide>左右键向左或向右，空格键跳跃。</div>
170: </td>
171: <td><img src="startNow.png" onclick="version='keyboard';startFlashGame(paraKeyboardVersion);" class=imageButton></td>
172: </tr></table>
173: </div>
174: <div class=section>
175: <table width=100%><tr>
176: <td valign=top>
177: <div class=gameVersion>重力感应版</div>
178: <div class=gameGuide>左右倾斜手机向左或向右，虚拟键盘的空格键跳跃。</div>
179: </td>
180: <td><img src="startNow.png" onclick="version='sensor';startFlashGame(paraSensorVersion);" class=imageButton></td>
181: </tr></table>
182: </div>
183: </BODY>
184: </HTML>