我有一个带有设置菜单项的 xml，并且有一个打开 OptionsMenu 的按钮并且它正在工作，但是当我在 OptionsMenu 中选择某些内容时，它不再被调用

这是我的代码。
主要 Activity

private PopupMenu mPopupMenu; 
ImageButton settings =  findViewById(R.id.buttonSettings); 
 
 
mPopupMenu = new PopupMenu(this, settings); 
        MenuInflater menuInflater = mPopupMenu.getMenuInflater(); 
        menuInflater.inflate(R.menu.main_settings, mPopupMenu.getMenu()); 
        settings.setOnClickListener(new View.OnClickListener() { 
            @Override 
            public void onClick(View v) { 
                mPopupMenu.show(); 
            } 
        }); 
 
 
 @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
        MenuInflater inflater = getMenuInflater(); 
        inflater.inflate(R.menu.main_settings, menu); 
        return true; 
    } 
    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
        int id = item.getItemId(); 
        if(id == R.id.menuNightMode) { 
            openDialog(); 
            return true; 
        } 
        return super.onOptionsItemSelected(item); 
 
    } 
 
  public void openDialog() { 
        DialogNightMode dialogNightMode = new DialogNightMode(); 
        dialogNightMode.show(getSupportFragmentManager(), "test"); 
    } 

这是 Xml

   <ImageButton 
        android:id="@+id/buttonSettings" 
        android:layout_width="40dp" 
        android:layout_height="40dp" 
        android:layout_alignParentEnd="true" 
        android:layout_alignParentRight="true" 
        android:layout_alignParentBottom="true" 
        android:layout_marginEnd="10dp" 
        android:layout_marginRight="10dp" 
        android:layout_marginBottom="17dp" 
        android:background="@color/transparent" 
        android:tint="@color/gray" 
        android:src="@drawable/ic_settings_black_24dp" /> 

菜单Xml

<menu xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto">     
    <item android:id="@+id/menuNightMode" android:title="@string/MainPageMenuNight" /> 
</menu> 

请您参考如下方法:

您的代码缺少 MenuItemClickListener，您需要将其设置为 PopupMenu。

设置如下

popup.show(); 
 
//Set on click listener for the menu 
popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() { 
   @Override 
   public boolean onMenuItemClick(MenuItem item) { 
        if(id == R.id.menuNightMode) { 
              openDialog(); 
        } 
        return false; 
   } 
});