Java 带有 NBAndroid 的 NetBeans - 找不到符号 setContentView(R.layout.main)；
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/9799927/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
NetBeans with NBAndroid - cannot find symbol setContentView(R.layout.main);
提问by Daniel Harris
I recently installed NetBeans 7.1.1 with NBAndroid 1.11 plugin. After starting a new HelloWorld project, I get the following error from the test code:
我最近安装了带有 NBAndroid 1.11 插件的 NetBeans 7.1.1。在启动一个新的 HelloWorld 项目后，我从测试代码中得到以下错误：
C:\Users\Daniel\Documents\NetBeansProjects\HelloWorld\src\Hello\World\HelloWorldMain.java:14: error: cannot find symbol setContentView(R.layout.main);
C:\Users\Daniel\Documents\NetBeansProjects\HelloWorld\src\Hello\World\HelloWorldMain.java:14: 错误：找不到符号 setContentView(R.layout.main);
Here is my source code for HelloWorldMain.java file:
这是我的 HelloWorldMain.java 文件的源代码：
package Hello.World;
import android.R;
import android.app.Activity;
import android.os.Bundle;
public class HelloWorldMain extends Activity
{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
}
The setContentView function is causing the problem for some reason. I checked the R.java file for any errors and didn't seem to find any:
由于某种原因， setContentView 函数导致了这个问题。我检查了 R.java 文件是否有任何错误，但似乎没有找到任何错误：
/* AUTO-GENERATED FILE. DO NOT MODIFY.
*
* This class was automatically generated by the
* aapt tool from the resource data it found. It
* should not be modified by hand.
*/
package Hello.World;
public final class R {
public static final class attr {
}
public static final class layout {
public static final int main=0x7f020000;
}
public static final class string {
public static final int app_name=0x7f030000;
}
}
Any help would be appreciated.
任何帮助，将不胜感激。
回答by MByD
You need to remove import android.R;. Your Rand android.Rare two different classes.
您需要删除import android.R;. 你R和android.R是两个不同的类。
回答by Pavul
In Android, we dont have a class that is auto-generated, so, if you doesnt find your R class try to build your project or to run it. After that you can find that a new package was added to your project, there is where you can find your R class.
在 Android 中，我们没有自动生成的类，因此，如果您没有找到 R 类，请尝试构建您的项目或运行它。之后你会发现一个新的包被添加到你的项目中，你可以在那里找到你的 R 类。
