1.6下的程序，在2.0下，调用SetIcon错误的解决方法

 今天将前一段时间在1.6sdk下写的工程，运行到其他的sdk下，2.0.1、2.1、2.2下都可以正常运行，但是在2.0系统中，出现异常退出的情况，看了一下logcat的日志如下：
06-12 06:58:19.894: ERROR/AndroidRuntime(414): Uncaught handler: thread main exiting due to uncaught exception
06-12 06:58:19.923: ERROR/AndroidRuntime(414): android.content.res.Resources$NotFoundException: Resource ID #0x7f020003
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at android.content.res.Resources.getValue(Resources.java:891)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at android.content.res.Resources.getDrawable(Resources.java:579)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at com.android.internal.view.menu.MenuItemImpl.getIcon(MenuItemImpl.java:432)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at com.android.internal.view.menu.IconMenuItemView.initialize(IconMenuItemView.java:109)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at com.android.internal.view.menu.MenuItemImpl.createItemView(MenuItemImpl.java:586)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at com.android.internal.view.menu.MenuItemImpl.getItemView(MenuItemImpl.java:569)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at com.android.internal.view.menu.IconMenuView.updateChildren(IconMenuView.java:347)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at com.android.internal.view.menu.IconMenuView.initialize(IconMenuView.java:329)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at com.android.internal.view.menu.MenuBuilder$MenuType.getMenuView(MenuBuilder.java:199)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at com.android.internal.view.menu.MenuBuilder.getMenuView(MenuBuilder.java:323)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at com.android.internal.policy.impl.PhoneWindow.initializePanelContent(PhoneWindow.java:840)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at com.android.internal.policy.impl.PhoneWindow.openPanel(PhoneWindow.java:417)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at com.android.internal.policy.impl.PhoneWindow.onKeyUpPanel(PhoneWindow.java:603)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at com.android.internal.policy.impl.PhoneWindow.onKeyUp(PhoneWindow.java:1307)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:1636)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at android.view.ViewRoot.deliverKeyEventToViewHierarchy(ViewRoot.java:2367)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at android.view.ViewRoot.handleFinishedEvent(ViewRoot.java:2337)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at android.view.ViewRoot.handleMessage(ViewRoot.java:1640)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at android.os.Handler.dispatchMessage(Handler.java:99)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at android.os.Looper.loop(Looper.java:123)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at android.app.ActivityThread.main(ActivityThread.java:4310)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at java.lang.reflect.Method.invokeNative(Native Method)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at java.lang.reflect.Method.invoke(Method.java:521)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
06-12 06:58:19.923: ERROR/AndroidRuntime(414):     at dalvik.system.NativeStart.main(Native Method)
分析是由于

android.content.res.Resources$NotFoundException: Resource ID #0x7f020003

找不到资源导致的，看了一下R.java文件，对应的id也都有。仔细观察了一下工程文件，在res下，有drawable-hdpi、drawable-ldpi、drawable-mdbi，这个是新建工程时候自己建立的，按照之前了解，应该是系统自适应，找到匹配的图片，导入，但是在2.0的sdk下，好像并没有导入这些图片。这时候也发现，所有的其他图标也都无法显示。找到这个现象后，我在res下，新建了一个文件夹（res上右键，选择“New”->“Folder”），命名为drawable，将drawable-mdpi（drawable-ldpi、drawable-hdpi应该也行，我没有尝试）下的资源文件拷贝一份到drawable下，再运行，一切OK，问题解决。

究其原因，应该是android skd2.0下的资源文件，有些特殊。^_^