XML不是被解决/由Eclipse的认可? [英] XML's not being resolved/recognized by Eclipse?
问题描述
我刚刚做过的Eclipse了Android的网站一个新的重新安装/提取物,几乎增加了很多code或XML到我的项目,但什么也没有被我MainActivity.java以外的认可。你问,是之前,我试图清理并重新启动Eclipse的。
(参见误差在哪里评论)。例如,在第一种方法(的onCreate),像有第二的activity_main将Eclipse说,它不能解析,因为如果它不存在。因此,在onCreateLGClick方法我CreateLG按钮没有解决/或者认可。无论是主要的解决(的.xml)或createlg_menu(的.xml)。
MainActivity.java:
包com.example.groceryrunner;进口android.os.Bundle;
进口android.app.Activity;
进口android.view.Menu;
进口android.view.MenuItem;
进口android.view.View;
进口android.widget.PopupMenu;
进口android.R;公共类MainActivity延伸活动{ @覆盖
保护无效的onCreate(捆绑savedInstanceState){
super.onCreate(savedInstanceState);
的setContentView(R.layout.activity_main); //不解决或不是场
}
@覆盖
公共布尔onCreateOptionsMenu(菜单菜单){
//充气菜单;如果是present这增加了项目操作栏。
。getMenuInflater()膨胀(R.menu.main,菜单); //主无法识别
返回true;
}
公共无效onCreateLGClick(视图v){
最终诠释ID = v.getId();
开关(ID){
案例R.id.CreateLG:从activity_main // CreateLG按钮也不认可
//findViewById(R.id.GetStarted).setVisibility(View.INVISIBLE);
createLGPopup(五);
打破;
/ *案例R.id.ListsButton:
findViewById(R.id.GetStarted).setVisibility(View.INVISIBLE);
createLGMenu(五);
打破;*/
}
} 公共无效createLGPopup(视图v){
PopupMenu的LGMenu =新PopupMenu的(这一点,V); // createlg_menu不被识别,以及
。LGMenu.getMenuInflater()膨胀(R.menu.createlg_menu,LGMenu.getMenu());
LGMenu.setOnMenuItemClickListener(新PopupMenu.OnMenuItemClickListener(){ @覆盖
公共布尔onMenuItemClick(菜单项项){
字符串选择=新的String((字符串)item.getTitle());
如果(选择==Create_List){
// createListDialog();
}
否则,如果(选择==Create_Group){
// createListDialog();
}
返回false;
}
});
LGMenu.show();
}}
下面是其他的文件:
activity_main.xml中:
<的RelativeLayout的xmlns:机器人=http://schemas.android.com/apk/res/android
的xmlns:工具=http://schemas.android.com/tools
机器人:layout_width =match_parent
机器人:layout_height =match_parent
机器人:paddingBottom会=@扪/ activity_vertical_margin
机器人:paddingLeft =@扪/ activity_horizontal_margin
机器人:paddingRight =@扪/ activity_horizontal_margin
机器人:paddingTop =@扪/ activity_vertical_margin
工具:上下文=MainActivity。> <按钮
机器人:ID =@ + ID / CreateLG
机器人:layout_width =WRAP_CONTENT
机器人:layout_height =WRAP_CONTENT
机器人:layout_alignParentLeft =真
机器人:layout_alignParentTop =真
机器人:layout_marginLeft =37dp
机器人:layout_marginTop =21dp
机器人:文字=+
机器人:TEXTSIZE =40SP/>< / RelativeLayout的>
createlg_menu.xml:
<?XML版本=1.0编码=UTF-8&GT?;
<菜单的xmlns:机器人=http://schemas.android.com/apk/res/android>
<项目机器人:ID =@ + ID / createList机器人:标题=创建列表>< /项目>
<项目机器人:ID =@ + ID / createGroup机器人:标题=创建组>< /项目>&所述; /菜单>
main.xml中:
<菜单的xmlns:机器人=http://schemas.android.com/apk/res/android> <项目
机器人:ID =@ + ID / action_settings
机器人:orderInCategory =100
机器人:showAsAction =从不
机器人:标题=@字符串/ action_settings/>&所述; /菜单>
当我遇到此问题,第一步是取消进口android.R线。这是错误的R.
接下来,注释掉任意行引用R和构建项目。这将使新的根文件夹中的R值。
最有可能您的问题是进口android.R使应用程序看起来在那里,而不是在你ř根文件。但是Eclipse得到偶尔傻,不会建立一个没有评论这些了,所以尽量两个步骤以确保万无一失。
I've just done a fresh re-install/extract of Eclipse off Android's website, hardly added much code or XML to my project, yet nothing's being recognized outside of my MainActivity.java. And before you ask-yes, I've tried cleaning and restarting Eclipse.
(see comments for where the errors are) For example, in the first method (onCreate), the second like there's activity_main that Eclipse is saying it can't resolve, as if it doesn't exist. Consequently, my CreateLG button in the onCreateLGClick method isn't resolved/recognized either. Neither is the main (.xml) or createlg_menu (.xml) resolved..
MainActivity.java:
package com.example.groceryrunner;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.PopupMenu;
import android.R;
public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main); // not resolved or isn't a field
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu); // main isn't recognized
return true;
}
public void onCreateLGClick(View v) {
final int id = v.getId();
switch (id) {
case R.id.CreateLG: // CreateLG button from activity_main isn't recognized either
//findViewById(R.id.GetStarted).setVisibility(View.INVISIBLE);
createLGPopup(v);
break;
/*case R.id.ListsButton:
findViewById(R.id.GetStarted).setVisibility(View.INVISIBLE);
createLGMenu(v);
break;*/
}
}
public void createLGPopup(View v) {
PopupMenu LGMenu = new PopupMenu(this, v); // createlg_menu isn't recognized as well
LGMenu.getMenuInflater().inflate(R.menu.createlg_menu, LGMenu.getMenu());
LGMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem item) {
String choice = new String((String) item.getTitle());
if (choice == "Create_List") {
//createListDialog();
}
else if (choice == "Create_Group") {
//createListDialog();
}
return false;
}
});
LGMenu.show();
}
}
Here's the other files:
activity_main.xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<Button
android:id="@+id/CreateLG"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="37dp"
android:layout_marginTop="21dp"
android:text="+"
android:textSize="40sp" />
</RelativeLayout>
createlg_menu.xml:
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:id="@+id/createList" android:title="Create List"></item>
<item android:id="@+id/createGroup" android:title="Create Group"></item>
</menu>
main.xml:
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="@+id/action_settings"
android:orderInCategory="100"
android:showAsAction="never"
android:title="@string/action_settings"/>
</menu>
When i encounter this issue, the first step is to remove the import android.R line. That is the wrong R.
Next, comment out any line referencing R and build the project. That will make new gen folder with the R values.
Most likely your issue is importing android.R so the app looks in there instead of in your R gen file. But Eclipse gets silly sometimes and won't build without commenting those out, so try both steps to be sure.
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