错误:没有找到类android.view.menu(上路径) [英] Error: Didn't find class android.view.menu (on path)
问题描述
我试图创建一个菜单
项。当我运行我的应用程序,它崩溃权当它启动起来,我得到了LogCat中出现以下错误:
E / AndroidRuntime(1507):因:
抛出java.lang.ClassNotFoundException:找不到类
android.view.menu的路径:
/data/app/com.thing.appname-2.apk
块引用>下面是我的XML:
<菜单的xmlns:机器人=http://schemas.android.com/apk/res/android>
<项目机器人:ID =@ + ID / addEventMenu
机器人:标题=添加事件
机器人:图标=@绘制/ addeventimage/>
&所述; /菜单>以下是onCreate方法之外(不知道这是否有差别):
公共布尔onOptionsItemSelected(菜单项项){
开关(item.getItemId()){
案例R.id.addEventMenu:
//做一些事情时,这里的菜单按钮为pressed
返回true;
默认:
返回super.onOptionsItemSelected(项目);
}
} @覆盖
公共布尔onCreateOptionsMenu(菜单菜单){
menu.add(R.id.addEventMenu);
返回super.onCreateOptionsMenu(菜单);
}我也试过这个,我也得到了同样的错误:
@覆盖
公共布尔onCreateOptionsMenu(菜单菜单){
MenuInflater吹气= getMenuInflater();
inflater.inflate(R.menu.main,菜单);
返回true;
}
解决方案我遇到了同样的问题前,当我开始Android的发展...
有在你的项目资源下的菜单不同的XML文件 - 这就是太大区别从布局XML文件。把
<菜单>
和<项目>
(S)在RES /菜单/ main.xml中此外,在Android Studio有告诉你要导入的东西一种奇怪的方式......请确保您使用
@覆盖
公共布尔onCreateOptionsMenu(菜单菜单){
MenuInflater吹气= getMenuInflater();
inflater.inflate(R.menu.main,菜单);
返回true;
}和上冲通知单击导入。
I'm trying to create a single
menu
item. When I run my app, it crashes right when it starts up and I get the following error in LogCat:E/AndroidRuntime(1507): Caused by: java.lang.ClassNotFoundException: Didn't find class "android.view.menu" on path: /data/app/com.thing.appname-2.apk
Here is my XML:
<menu xmlns:android="http://schemas.android.com/apk/res/android"> <item android:id="@+id/addEventMenu" android:title="Add Event" android:icon="@drawable/addeventimage"/> </menu>
The following is outside of the onCreate method (don't know if it makes a difference):
public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.addEventMenu: //do something here when menu button is pressed return true; default: return super.onOptionsItemSelected(item); } } @Override public boolean onCreateOptionsMenu(Menu menu) { menu.add(R.id.addEventMenu); return super.onCreateOptionsMenu(menu); }
I've also tried this and I get the same error:
@Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.main, menu); return true; }
解决方案I ran into the same problem before when I started Android Development...
There is a different XML file under "menu" in your project resources - this is much different from the layout XML file. Put the
<menu>
and<item>
(s) in the "res/menu/main.xml".Also, the Android Studio has an odd way of telling you to import stuff... make sure you use
@Override public boolean onCreateOptionsMenu(Menu menu) { MenuInflater inflater = getMenuInflater(); inflater.inflate(R.menu.main, menu); return true; }
and click on the red notification to import.
这篇关于错误:没有找到类android.view.menu(上路径)的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!