android getMenuInflater（）在一个片段子类中 - 无法解析方法 [英] android getMenuInflater() in a fragment subclass - cannot resolve method

问题描述

我试图在继承 Fragment 类的类中扩充菜单。
这是我的 OnCreateOptionsMenu（）方法 -

I am trying to inflate a menu in a class that inherits the Fragment class. Here is my OnCreateOptionsMenu() method -

@Override
public boolean OnCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.forecastfragment, menu) ;
    return true;
}

这会引发以下错误：

无法解析方法'getMenuInflater（）'

Cannot resolve method 'getMenuInflater()'

我试过：

MenuInflater inflater = getActivity().getMenuInflater();

然后Android Studio突出显示 @Override in红色和状态：

but then Android Studio highlights @Override in red and states:

方法不会覆盖其超类中的方法

Method does not override method from its superclass

我还试图在同一个类中创建一个 getMenuInflater 方法并让它返回 new MenuInflater（this）

I also tried to create a getMenuInflater method in the same class and have it return new MenuInflater(this)

public MenuInflater getMenuInflater() {
    return new MenuInflater(this);
}

但抛出以下错误：

错误：不兼容的类型：ForecastFragment无法转换为
上下文

error: incompatible types: ForecastFragment cannot be converted to Context

错误：方法不会覆盖或者从超类型实现方法

error: method does not override or implement a method from a supertype

我该怎么办？

推荐答案

您的 onCreateOptionsMenu 的签名看起来不正确。看看文档这里

The signature of your onCreateOptionsMenu doesn't look right. Take a look at the docs here

查看此代码

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setHasOptionsMenu(true);//Make sure you have this line of code.
}

@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
    // TODO Add your menu entries here
    super.onCreateOptionsMenu(menu, inflater);
}

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