Tabbed Activity | hlessjon

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#ff0000"
    android:orientation="vertical">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:text="Hello Dave"
        android:id="@+id/textView2"
        android:layout_gravity="center_horizontal"
        android:layout_marginTop="30dp" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="New Button"
        android:id="@+id/button2"
        android:layout_margin="100dp"
        android:layout_gravity="center_horizontal" />
</LinearLayout>

package com.mycompany.myapplicationx;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
//you will need to import throughout the creation of this code.
//The class needs to extend Fragment
public class MyFrag extends Fragment {
    //The newInstance() method return the reference to fragment
    public static MyFrag newInstance() {
        MyFrag fragment = new MyFrag();
        return fragment;
    }
    //MyFragment is the constructor method of our class.
    //this is a java thing. Google it as you this is basic
    //java that you need to know.
    public MyFrag() {
    }
//since we have a button and textview on the xml will use these two
    //variable to connect to them.
    Button button2;
    TextView daveText;
//this method links the fragment to the layout
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    //connecting the fragment to our layout, new_frag
    View rootView = inflater.inflate(R.layout.new_frag, container, false);
    //then the btn and the textview
    button2 = (Button) rootView.findViewById(R.id.button2);
    daveText = (TextView) rootView.findViewById(R.id.textView2);

    button2.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            if(daveText.getText().toString().contains("Hello Dave")){
                daveText.setText("I'm sorry Dave I can't do that.");
            }else daveText.setText("Hello Dave");
        }
    });
    // return our View
    return rootView;
}
} // This is the end. But we still have to change the mainactivity.java to work with it.

            switch (position) {
                case 0:
                    return PlaceholderFragment.newInstance(position + 1);
                case 1:
                    return MyFrag.newInstance();
                // default: return MyFrag.newInstance();
/* You could use default here instead*/
                //STILL NEED TO CHANGE THE getCount!!
            }
            return null; //if you use default, you would not need to return null

}

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        //added the new getCount
        public int getCount() {
            // Show 2 total pages.
            return 2;
        }