所以我是 Android 新手，并且在理解线程/Android UI 更新等方面遇到了一些困难。我有一些为 AP 计算机科学期末项目制作的简单游戏引擎的代码，我一直在尝试将其制作成 Android 应用程序。来自java世界，我不习惯线程或担心计算发生的时间或位置，因此我在让我的游戏可玩时遇到了一些困难。在启动屏幕和主菜单之后，我将其设置为启动名为“Play”的活动。在此活动中，我发现我可以初始化我的游戏引擎对象（从一个类传递到另一个类），创建一个我创建的对象来创建 AsyncTask（下面链接的代码中的“GuiThreader”），但是一旦我投入“Play”中的一些代码可以执行更多操作（例如初始化按钮，或启动线程帮助器类），我收到“活动意外停止”错误，这意味着我做错了什么。我一直在查看很多 Android 示例代码，但它对我来说没有什么意义。所以我想有了这些背景，我更大的问题是如何让这段代码正常工作？更具体地说，我应该在哪里设置循环来检查游戏何时结束，以及如何在“主”线程之外更新按钮颜色以防止崩溃。
这是我的代码：
“Play”Activity（带有我正在测试的注释代码行）：
http://pastebin.com/K5kFsMvG
“GuiThreader”用于使游戏计算成为 AsyncTask：http://pastebin.com/306eUYfq
“GUIdriver”用于调用更新按钮颜色的类： http://pastebin.com/RANZBH38
"ButtonColorUpdate " 保存按钮的值并更新其颜色：http://pastebin.com/qN2fw1RC
如果您需要其他任何内容，请发表评论，我会提出来。预先感谢您的任何帮助！
So I'm new to Android, and have been having some difficulties with understanding threading/Android UI updating and such. I have some code for a simple game engine I made for an AP computer science final project and I have been trying to make it into an Android app. Coming from the java world I'm not used to threading or worrying about how much time or where a calculation is taking place so I've been having some difficulties getting my game playable. After a splash screen and a main menu, I have it set up so an activity named "Play" starts. In this activity I have found that I can initialize my game engine object(which gets passed from class to class), create an object I created to make an AsyncTask("GuiThreader" in the code linked below) but as soon as I throw in some code in "Play" to do anything more than that (like initialize a button, or start the threader helper class) I get an "Activity has Stopped Unexpectedly" error meaning I'm doing something wrong. I've been looking at a lot of the Android example code but its making little sense to me. So I guess with all that background my bigger question is how can I get this code working? More specifically where should I have my loop that checks when the game is over, and how can I update my button colors outside of the "main" threader to keep it from crashing.
Here is my code:
"Play" Activity (with lines of code commented that I was testing with):
http://pastebin.com/K5kFsMvG
"GuiThreader" used to make the game calculations an AsyncTask: http://pastebin.com/306eUYfq
"GUIdriver" used to call a class that updates the button colors: http://pastebin.com/RANZBH38
"ButtonColorUpdate" saves a value for buttons and updates their colors: http://pastebin.com/qN2fw1RC
If you need anything else just comment and I'll put it up. Thanks in advance for any help!
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首先阅读本文。然后我建议查看 Replica Island 中的代码。通过研究这个项目的代码，您可以学到很多东西。如果您想从单独的线程与 GUI“东西”进行交互，则处理程序（请参阅 API）对于在两者之间发送消息非常有用。
Start by reading this. Then I'd recommend looking at the code from Replica Island. There's a ton you can learn from studying the code of this project. If you want to interact with GUI "stuff" from a separate thread, a Handler (see the API) can be useful for sending messages between the two.