Countdown time not working after removing SetContentView in Fragments

Question

I have made a countdown timer with Days, hours, minutes and seconds. It is working correctly when used as a Activity, but now I have to put this in a fragment and I cannot use SetContentView. How do I still make it work? Any help is appreciated. Thanks!

Here is my code:

    public class FragmentOne extends Fragment {

    private TextView tvDay, tvHour, tvMinute, tvSecond, tvEvent;
    private LinearLayout linearLayout1, linearLayout2;
    private Handler handler;
    private Runnable runnable;

    public static Fragment newInstance(Context context) {
        FragmentOne f = new FragmentOne();
        return f;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,Bundle savedInstanceState) {
        ViewGroup root = (ViewGroup) inflater.inflate(R.layout.fragment_one, container,false);
        linearLayout1 = (LinearLayout) getActivity().findViewById(R.id.ll1);
        linearLayout2 = (LinearLayout) getActivity().findViewById(R.id.ll2);
        tvDay = (TextView) getActivity().findViewById(R.id.txtTimerDay);
        tvHour = (TextView) getActivity().findViewById(R.id.txtTimerHour);
        tvMinute = (TextView) getActivity().findViewById(R.id.txtTimerMinute);
        tvSecond = (TextView) getActivity().findViewById(R.id.txtTimerSecond);
        tvEvent = (TextView) getActivity().findViewById(R.id.tvevent);
        handler = new Handler();
        runnable = new Runnable() {
            @Override
            public void run() {
                handler.postDelayed(this, 1000);
                try {
                    SimpleDateFormat dateFormat = new SimpleDateFormat(
                            "yyyy-MM-dd");
                    Date futureDate = dateFormat.parse("2016-2-19");
                    Date currentDate = new Date();
                    if (!currentDate.after(futureDate)) {
                        long diff = futureDate.getTime()
                                - currentDate.getTime();
                        long days = diff / (24 * 60 * 60 * 1000);
                        diff -= days * (24 * 60 * 60 * 1000);
                        long hours = diff / (60 * 60 * 1000);
                        diff -= hours * (60 * 60 * 1000);
                        long minutes = diff / (60 * 1000);
                        diff -= minutes * (60 * 1000);
                        long seconds = diff / 1000;
                        tvDay.setText("" + String.format("%02d:", days));
                        tvHour.setText("" + String.format("%02d:", hours));
                        tvMinute.setText("" + String.format("%02d:", minutes));
                        tvSecond.setText("" + String.format("%02d", seconds));
                    } else {
                        linearLayout1.setVisibility(View.VISIBLE);
                        linearLayout2.setVisibility(View.GONE);
                        tvEvent.setText("Event Start");
                        handler.removeCallbacks(runnable);
                        handler.removeMessages(0);
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        };
        handler.postDelayed(runnable, 0);
        return root;
    } 
}

And my XML for the same:

    <?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:background="@drawable/background" > 

      <LinearLayout
     android:id="@+id/ll1"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
     android:layout_centerHorizontal="true"
     android:layout_marginTop="10dp"
     android:background="#FFFFFF"
     android:gravity="center|center_horizontal|center_vertical"
     android:orientation="horizontal"
     android:visibility="gone" >

        <TextView
            android:id="@+id/tvevent"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="center_horizontal|center_vertical"
            android:singleLine="true"
            android:text="Android Event Start"
            android:textColor="#fff"
            android:textSize="24sp"
            android:textStyle="bold" />
    </LinearLayout>

    <LinearLayout
        android:id="@+id/ll2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerInParent="true"
        android:layout_gravity="center"
        android:layout_marginLeft="20dp"
        android:layout_marginRight="20dp"
        android:layout_marginTop="10dp"
        android:background="#00000000"
        android:gravity="center|center_horizontal|center_vertical"
        android:orientation="horizontal"
        android:visibility="visible" >

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:background="#00FFFFFF"
            android:gravity="center"
            android:orientation="vertical" >

            <TextView
                android:id="@+id/txtTimerDay"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_weight="3"
                android:gravity="center"
                android:text="00:"
                android:textAppearance="?android:attr/textAppearanceLarge"
                android:textColor="#fff" 
                android:textSize="50sp"/>
        </LinearLayout>

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:background="#00FFFFFF"
            android:gravity="center"
            android:orientation="vertical" >

            <TextView
                android:id="@+id/txtTimerHour"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_weight="3"
                android:gravity="center"
                android:text="00:"
                android:textAppearance="?android:attr/textAppearanceLarge"
                android:textColor="#fff" 
                android:textSize="50sp"/>
        </LinearLayout>

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:background="#00FFFFFF"
            android:gravity="center"
            android:orientation="vertical" >

            <TextView
                android:id="@+id/txtTimerMinute"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_weight="3"
                android:gravity="center"
                android:text="00:"
                android:textAppearance="?android:attr/textAppearanceLarge"
                android:textColor="#fff"
                android:textSize="50sp" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:background="#00FFFFFF"
            android:gravity="center"
            android:orientation="vertical" >

            <TextView
                android:id="@+id/txtTimerSecond"
                android:layout_width="fill_parent"
                android:layout_height="wrap_content"
                android:layout_weight="3"
                android:gravity="center"
                android:text="00"
                android:textAppearance="?android:attr/textAppearanceLarge"
                android:textColor="#fff"
                android:textSize="50sp" />
        </LinearLayout>
    </LinearLayout>



</RelativeLayout>

Answer 1

Replace getActivity() with this -

     ViewGroup root = (ViewGroup) inflater.inflate(R.layout.fragment_one, container,false);
     linearLayout1 = (LinearLayout) root.findViewById(R.id.ll1);
......................

Answer 2

but now I have to put this in a fragment and I cannot use SetContentView

getActivity() return Activity Context and calling findViewById using getActivity means accessing View's from Activity layout instead of Fragment which is returned from onCreateView method.

So to get it work use root instead of getActivity() to access View's from Fragment Layout :

linearLayout1 = (LinearLayout) root.findViewById(R.id.ll1);

Do same for accessing other View's.