我开始在android中开发,我尝试修改Snake代码,包括调用浏览器来显示网页,当我执行我的应用程序时它显示在brwser中的页面,但问题是当我回到蛇应用程序时它显示应用程序意外停止的消息,logCat显示下面的例外情况
02-19 01:06:50.920: W/dalvikvm(3394): threadid=1: thread exiting with uncaught exception (group=0x4015a760)
02-19 01:06:50.930: E/AndroidRuntime(3394): FATAL EXCEPTION: main
02-19 01:06:50.930: E/AndroidRuntime(3394): java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0
02-19 01:06:50.930: E/AndroidRuntime(3394): at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:255)
02-19 01:06:50.930: E/AndroidRuntime(3394): at java.util.ArrayList.get(ArrayList.java:308)
02-19 01:06:50.930: E/AndroidRuntime(3394): at com.example.android.snake.SnakeView.updateSnake(SnakeView.java:448)
02-19 01:06:50.930: E/AndroidRuntime(3394): at com.example.android.snake.SnakeView.update(SnakeView.java:403)
02-19 01:06:50.930: E/AndroidRuntime(3394): at com.example.android.snake.SnakeView.setMode(SnakeView.java:335)
02-19 01:06:50.930: E/AndroidRuntime(3394): at com.example.android.snake.SnakeView.onKeyDown(SnakeView.java:278)
02-19 01:06:50.930: E/AndroidRuntime(3394): at android.view.KeyEvent.dispatch(KeyEvent.java:2387)
02-19 01:06:50.930: E/AndroidRuntime(3394): at android.view.View.dispatchKeyEvent(View.java:4569)
02-19 01:06:50.930: E/AndroidRuntime(3394): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1113)
02-19 01:06:50.930: E/AndroidRuntime(3394): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:1113)
02-19 01:06:50.930: E/AndroidRuntime(3394): …