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Question

我在MainActivityListFragment中的代码声明方法OnActivityCreated（android.os.Bundle）从不使用'，它变成灰色。我也不能在它之前添加@Override。当我运行应用程序时，它会继续加载而不是显示列表。我会很感激你的帮助，我这样做的一个项目:)

content_main.xml

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
xmlns:app="http://schemas.android.com/apk/res-auto" 
xmlns:tools="http://schemas.android.com/tools" 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
app:layout_behavior="@string/appbar_scrolling_view_behavior" 
tools:context="com.example.enxin.crystallise.MainActivity" 
tools:showIn="@layout/activity_main"> 

<fragment 
    android:id="@+id/mainActivityFrag" 
    android:name="com.example.enxin.crystallise.MainActivityListFragment" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    tools:layout="@android:layout/simple_list_item_1" /> 
</LinearLayout> 

MainActivityListFragment

package com.example.enxin.crystallise; 

import android.app.ListFragment; 
import android.os.Bundle; 
import android.view.View; 
import android.widget.ArrayAdapter; 
import android.widget.ListView; 

/** 
* Created by En Xin on 11/6/2016. 
*/ 
public class MainActivityListFragment extends ListFragment { 


public void OnActivityCreated(Bundle savedInstanceState){ 
    super.onActivityCreated(savedInstanceState); 

    String[] values = new String[]{ "Android","iPhone", "WindowsMobile", "Blackberry", "WebOS", 
      "Ubuntu","Windows7", "Linux"}; 

    ArrayAdapter<String> adapter = new ArrayAdapter<String>(getActivity(), 
      android.R.layout.simple_list_item_1, values); 

    setListAdapter(adapter); 

} 

@Override 
public void onListItemClick(ListView l, View v, int position, long id){ 
    super.onListItemClick(l,v,position,id); 
} 
} 

Answer 1

你OnActivityCreated必须以小写o开始。更改OnActivityCreated到onActivityCreated然后添加@覆盖：

@Override 
public void onActivityCreated(Bundle savedInstanceState) { 
super.onActivityCreated(savedInstanceState); 
// the rest of your method