Day 13 - View Pager

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:id="@+id/linear_layout"
              android:orientation="vertical"
              android:gravity="center"
              android:layout_width="match_parent"
              android:layout_height="match_parent">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/greeting"
        android:textColor="@android:color/white"
        android:textSize="32sp" />

</LinearLayout>

package com.devahoy.learn30androidlibraries.day13;

import android.graphics.Color;
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.LinearLayout;
import android.widget.TextView;

import com.devahoy.learn30androidlibraries.R;

public class SimpleFragment extends Fragment {

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        ViewGroup rootView = (ViewGroup) inflater.inflate(
                R.layout.day13_fragment, container, false);

        return rootView;
    }
}

package com.devahoy.learn30androidlibraries.day13;

import android.graphics.Color;
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.LinearLayout;
import android.widget.TextView;

import com.devahoy.learn30androidlibraries.R;

public class SimpleFragment extends Fragment {

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        int position = 0;

        int[] colors = {
            Color.rgb(0xF6, 0x47, 0x47), // #F64747
            Color.rgb(0x9A, 0x12, 0xB3), // #9A12B3
            Color.rgb(0x22, 0xA7, 0xF0), // #22A7F0
            Color.rgb(0x4B, 0x77, 0xBE), // #4B77BE
            Color.rgb(0x1B, 0xBC, 0x9B), // #1BBC9B
            Color.rgb(0xF2, 0x79, 0x35)  // #F27935
        };

        final String[] names = {
                "John Doe", "Jane Doe", "Chuck Norris", "Janie Roe", "James Roe"
        };

        Bundle bundle = getArguments();

        position = bundle.getInt(SimplePagerAdapter.ARGS_POSITION);

        ViewGroup rootView = (ViewGroup) inflater.inflate(
                R.layout.day13_fragment, container, false);

        TextView greeting = (TextView) rootView.findViewById(R.id.greeting);
        LinearLayout linearLayout = (LinearLayout)
                rootView.findViewById(R.id.linear_layout);

        linearLayout.setBackgroundColor(colors[position % colors.length]);
        greeting.setText("Hello " + names[position % names.length]);

        return rootView;
    }
}

package com.devahoy.learn30androidlibraries.day13;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;

class SimplePagerAdapter extends FragmentStatePagerAdapter {

    public static final String ARGS_POSITION = "name";
    public static final int NUM_PAGES = 5;

    public SimplePagerAdapter(FragmentManager fm) {
        super(fm);
    }

    @Override
    public Fragment getItem(int position) {

        Fragment fragment = new SimpleFragment();
        Bundle args = new Bundle();
        args.putInt(ARGS_POSITION, position);
        fragment.setArguments(args);

        return fragment;
    }

    @Override
    public int getCount() {
        return NUM_PAGES;
    }
}

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.view.ViewPager
    android:id="@+id/pager"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"/>

package com.devahoy.learn30androidlibraries.day13;

import android.os.Bundle;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBarActivity;

import com.devahoy.learn30androidlibraries.R;

public class ViewPagerActivity extends ActionBarActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.day13_activity_viewpager);

        ViewPager viewPager = (ViewPager) findViewById(R.id.pager);
        PagerAdapter adapter = new SimplePagerAdapter(getSupportFragmentManager());

        viewPager.setAdapter(adapter);
    }
}

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.view.ViewPager
    android:id="@+id/pager"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.v4.view.PagerTitleStrip
        android:id="@+id/pager_title_strip"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_gravity="top"
        android:background="#3EAFF9"
        android:paddingBottom="4dp"
        android:paddingTop="8dp"
        android:textColor="#fff"/>

</android.support.v4.view.ViewPager>

package com.devahoy.learn30androidlibraries.day13;

import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;

class SimplePagerAdapter extends FragmentStatePagerAdapter {
    ...

    @Override
    public CharSequence getPageTitle(int position) {
        return "PAGE#" + (position + 1);
    }
}

package com.devahoy.learn30androidlibraries.day13;

import android.app.ActionBar;
import android.app.FragmentTransaction;
import android.os.Bundle;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBarActivity;

import com.devahoy.learn30androidlibraries.R;

public class ViewPagerActivity extends ActionBarActivity {

    private ViewPager mViewPager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        final ActionBar actionBar = getActionBar();
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

        setContentView(R.layout.day13_activity_viewpager);

        mViewPager = (ViewPager) findViewById(R.id.pager);
        PagerAdapter adapter = new SimplePagerAdapter(getSupportFragmentManager());
        mViewPager.setAdapter(adapter);

        for (int i = 0; i < SimplePagerAdapter.NUM_PAGES; i++) {
            actionBar.addTab(actionBar.newTab()
                            .setText("Tab #" + i)
                            .setTabListener(tabListener));
        }
    }

    private ActionBar.TabListener tabListener = new ActionBar.TabListener() {
        @Override
        public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {
            mViewPager.setCurrentItem(tab.getPosition());
        }

        @Override
        public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) {

        }

        @Override
        public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) {

        }
    };
}

mViewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
    @Override
    public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {

    }

    @Override
    public void onPageSelected(int position) {
        getActionBar().setSelectedNavigationItem(position);
    }

    @Override
    public void onPageScrollStateChanged(int state) {

    }
});