启动新的 Android 项目后，无法立即识别主布局
当我开始一个新的android项目时，下面的代码是自动生成的。
我在“R.layout.main”上收到错误，说它不存在。
事实上，我确实有一个 main.xml，当我在“图形布局”选项卡中编辑它时，我可以看到布局发生变化。
我该如何解决这个问题以便我可以运行我的应用程序？
public class ComplimentGeneratorActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
The below code was automatically generated when I started a new android project.
I'm getting an error on the "R.layout.main" saying it does not exist.
I do in fact have a main.xml and I can see the layout change as I edit it in the Graphical Layout tab.
How can I fix this so I can run my application?
public class ComplimentGeneratorActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
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R 文件的包名称和源代码的包名称可能不匹配。确保您的代码所在的包与清单文件中定义的包相同。否则，您将需要导入具有完整包名称的 R 文件（例如：com.example.R.layout.main）。
如果它们匹配，则由于某种原因您的 R 文件未正确生成。尝试清理您的项目。
The package name of the R file and the package name of your source code may not match. Make sure the package your code is in is the same as the package defined in the manifest file. Otherwise you will need to import the R file with the full package name (ex: com.example.R.layout.main).
If they match, for some reason your R file was not generated properly. Try cleaning your project.
这可能是一个非常简单的答案，但我以前也遇到过这种情况。尝试重新启动 eclipse。文件->重新启动
This may be a very simple answer, but it has happened to me before. Try to restart eclipse. File -> Restart
尝试使用主活动类文件中的完整路径导入 R.java 文件...
希望这能解决您的查询。
Try to import the R.java file with the full path inside the main activity class file...
Hope, this will solve your query.