XML : unable to populate listview in fragment layout.

I"m new to android development and currently going through udacity course on developing android apps. I've looked for all the possible answers but none of them worked. My code looks perfectly fine to me and I'm not getting any error in the log as well. but unfortunately my output is blank. nothing is showing up.

this is my java code: 1. MainActivity.java.

  package com.example.vineet_kr.sunshine;    import android.app.Fragment;  import android.os.Bundle;  import android.support.design.widget.FloatingActionButton;  import android.support.design.widget.Snackbar;  import android.support.v7.app.AppCompatActivity;  import android.support.v7.widget.Toolbar;  import android.view.LayoutInflater;  import android.view.View;  import android.view.Menu;  import android.view.MenuItem;    public class MainActivity extends AppCompatActivity {        @Override      protected void onCreate(Bundle savedInstanceState) {          super.onCreate(savedInstanceState);          setContentView(R.layout.activity_main);          Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);          setSupportActionBar(toolbar);            FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);          fab.setOnClickListener(new View.OnClickListener() {              @Override              public void onClick(View view) {                  Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)                          .setAction("Action", null).show();              }          });      }        @Override      public boolean onCreateOptionsMenu(Menu menu) {          // Inflate the menu; this adds items to the action bar if it is present.          getMenuInflater().inflate(R.menu.menu_main, menu);          return true;      }        @Override      public boolean onOptionsItemSelected(MenuItem item) {          // Handle action bar item clicks here. The action bar will          // automatically handle clicks on the Home/Up button, so long          // as you specify a parent activity in AndroidManifest.xml.          int id = item.getItemId();            //noinspection SimplifiableIfStatement          if (id == R.id.action_settings) {              return true;          }            return super.onOptionsItemSelected(item);      }      }    

2.mainActivityFragment.java

  package com.example.vineet_kr.sunshine;    import android.support.v4.app.Fragment;  import android.os.Bundle;  import android.view.LayoutInflater;  import android.view.View;  import android.view.ViewGroup;  import android.widget.ArrayAdapter;  import android.widget.ListView;    import java.util.ArrayList;  import java.util.Arrays;  import java.util.List;    /**   * A placeholder fragment containing a simple view.   */  public class MainActivityFragment extends Fragment {        public MainActivityFragment() {      }        @Override      public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)      {          String[] data = {                                       "Mon 6/23 - Sunny - 31/17",                                       "Tue 6/24 - Foggy - 21/8",                                       "Wed 6/25 - Cloudy - 22/17",                                       "Thurs 6/26 - Rainy - 18/11",                                       "Fri 6/27 - Foggy - 21/10",                                       "Sat 6/28 - TRAPPED IN WEATHERSTATION - 23/18",                                       "Sun 6/29 - Sunny - 20/7"                              };          List<String> WeekForecast = new ArrayList<String>(Arrays.asList(data));          ArrayAdapter<String> forecast = new ArrayAdapter<String>(getActivity().getApplicationContext(), R.layout.list_item_forecast, R.id.list_item_forecast_textView,WeekForecast );          View  rootView = inflater.inflate(R.layout.fragment_main, container, false);          ListView list = (ListView) rootView.findViewById(R.id.listView_forecast);          list.setAdapter(forecast);          return inflater.inflate(R.layout.fragment_main, container, false);      }  }    

here are the Xml files. 1.list_Item_forecast.xml

  <?xml version="1.0" encoding="utf-8"?>  <TextView xmlns:android="http://schemas.android.com/apk/res/android"      android:layout_width="match_parent" android:layout_height="wrap_content"      android:gravity="center_vertical"      android:id="@+id/list_item_forecast_textView"      android:minHeight="?android:attr/listPreferredItemHeight"/>    

2.fragment_main.xml

  <FrameLayout 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="com.example.vineet_kr.sunshine.MainActivityFragment"      tools:showIn="@layout/activity_main">        <ListView          android:layout_width="match_parent"          android:layout_height="match_parent"          android:id="@+id/listView_forecast"           />    </FrameLayout>