Day 13 - View Pager

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<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
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              android:id="@+id/linear_layout"
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              android:orientation="vertical"
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              android:gravity="center"
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              android:layout_width="match_parent"
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              android:layout_height="match_parent">
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    <TextView
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        android:layout_width="wrap_content"
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        android:layout_height="wrap_content"
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        android:id="@+id/greeting"
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        android:textColor="@android:color/white"
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        android:textSize="32sp" />
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</LinearLayout>

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package com.devahoy.learn30androidlibraries.day13;
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import android.graphics.Color;
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import android.os.Bundle;
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import android.support.v4.app.Fragment;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.LinearLayout;
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import android.widget.TextView;
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import com.devahoy.learn30androidlibraries.R;
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public class SimpleFragment extends Fragment {
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    @Override
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    public View onCreateView(LayoutInflater inflater, ViewGroup container,
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                             Bundle savedInstanceState) {
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        ViewGroup rootView = (ViewGroup) inflater.inflate(
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                R.layout.day13_fragment, container, false);
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        return rootView;
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    }
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}

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package com.devahoy.learn30androidlibraries.day13;
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import android.graphics.Color;
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import android.os.Bundle;
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import android.support.v4.app.Fragment;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.LinearLayout;
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import android.widget.TextView;
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import com.devahoy.learn30androidlibraries.R;
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public class SimpleFragment extends Fragment {
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    @Override
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    public View onCreateView(LayoutInflater inflater, ViewGroup container,
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                             Bundle savedInstanceState) {
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        int position = 0;
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        int[] colors = {
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            Color.rgb(0xF6, 0x47, 0x47), // #F64747
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            Color.rgb(0x9A, 0x12, 0xB3), // #9A12B3
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            Color.rgb(0x22, 0xA7, 0xF0), // #22A7F0
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            Color.rgb(0x4B, 0x77, 0xBE), // #4B77BE
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            Color.rgb(0x1B, 0xBC, 0x9B), // #1BBC9B
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            Color.rgb(0xF2, 0x79, 0x35)  // #F27935
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        };
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        final String[] names = {
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                "John Doe", "Jane Doe", "Chuck Norris", "Janie Roe", "James Roe"
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        };
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        Bundle bundle = getArguments();
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        position = bundle.getInt(SimplePagerAdapter.ARGS_POSITION);
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        ViewGroup rootView = (ViewGroup) inflater.inflate(
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                R.layout.day13_fragment, container, false);
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        TextView greeting = (TextView) rootView.findViewById(R.id.greeting);
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        LinearLayout linearLayout = (LinearLayout)
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                rootView.findViewById(R.id.linear_layout);
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        linearLayout.setBackgroundColor(colors[position % colors.length]);
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        greeting.setText("Hello " + names[position % names.length]);
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        return rootView;
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    }
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}

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package com.devahoy.learn30androidlibraries.day13;
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import android.os.Bundle;
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import android.support.v4.app.Fragment;
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import android.support.v4.app.FragmentManager;
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import android.support.v4.app.FragmentStatePagerAdapter;
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class SimplePagerAdapter extends FragmentStatePagerAdapter {
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    public static final String ARGS_POSITION = "name";
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    public static final int NUM_PAGES = 5;
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    public SimplePagerAdapter(FragmentManager fm) {
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        super(fm);
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    }
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    @Override
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    public Fragment getItem(int position) {
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        Fragment fragment = new SimpleFragment();
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        Bundle args = new Bundle();
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        args.putInt(ARGS_POSITION, position);
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        fragment.setArguments(args);
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        return fragment;
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    }
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    @Override
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    public int getCount() {
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        return NUM_PAGES;
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    }
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}

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

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package com.devahoy.learn30androidlibraries.day13;
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import android.os.Bundle;
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import android.support.v4.view.PagerAdapter;
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import android.support.v4.view.ViewPager;
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import android.support.v7.app.ActionBarActivity;
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import com.devahoy.learn30androidlibraries.R;
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public class ViewPagerActivity extends ActionBarActivity {
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    @Override
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    protected void onCreate(Bundle savedInstanceState) {
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        super.onCreate(savedInstanceState);
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        setContentView(R.layout.day13_activity_viewpager);
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        ViewPager viewPager = (ViewPager) findViewById(R.id.pager);
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        PagerAdapter adapter = new SimplePagerAdapter(getSupportFragmentManager());
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        viewPager.setAdapter(adapter);
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    }
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}

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<?xml version="1.0" encoding="utf-8"?>
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<android.support.v4.view.ViewPager
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    android:id="@+id/pager"
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    xmlns:android="http://schemas.android.com/apk/res/android"
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    android:layout_width="match_parent"
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    android:layout_height="match_parent">
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    <android.support.v4.view.PagerTitleStrip
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        android:id="@+id/pager_title_strip"
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        android:layout_width="match_parent"
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        android:layout_height="wrap_content"
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        android:layout_gravity="top"
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        android:background="#3EAFF9"
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        android:paddingBottom="4dp"
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        android:paddingTop="8dp"
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        android:textColor="#fff"/>
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</android.support.v4.view.ViewPager>

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package com.devahoy.learn30androidlibraries.day13;
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import android.os.Bundle;
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import android.support.v4.app.Fragment;
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import android.support.v4.app.FragmentManager;
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import android.support.v4.app.FragmentStatePagerAdapter;
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class SimplePagerAdapter extends FragmentStatePagerAdapter {
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    ...
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    @Override
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    public CharSequence getPageTitle(int position) {
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        return "PAGE#" + (position + 1);
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    }
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}

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package com.devahoy.learn30androidlibraries.day13;
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import android.app.ActionBar;
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import android.app.FragmentTransaction;
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import android.os.Bundle;
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import android.support.v4.view.PagerAdapter;
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import android.support.v4.view.ViewPager;
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import android.support.v7.app.ActionBarActivity;
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import com.devahoy.learn30androidlibraries.R;
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public class ViewPagerActivity extends ActionBarActivity {
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    private ViewPager mViewPager;
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    @Override
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    protected void onCreate(Bundle savedInstanceState) {
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        super.onCreate(savedInstanceState);
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        final ActionBar actionBar = getActionBar();
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        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
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        setContentView(R.layout.day13_activity_viewpager);
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        mViewPager = (ViewPager) findViewById(R.id.pager);
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        PagerAdapter adapter = new SimplePagerAdapter(getSupportFragmentManager());
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        mViewPager.setAdapter(adapter);
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        for (int i = 0; i < SimplePagerAdapter.NUM_PAGES; i++) {
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            actionBar.addTab(actionBar.newTab()
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                            .setText("Tab #" + i)
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                            .setTabListener(tabListener));
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        }
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    }
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    private ActionBar.TabListener tabListener = new ActionBar.TabListener() {
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        @Override
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        public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {
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            mViewPager.setCurrentItem(tab.getPosition());
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        }
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        @Override
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        public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) {
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        }
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        @Override
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        public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) {
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        }
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    };
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}

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mViewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
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    @Override
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    public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
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    }
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    @Override
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    public void onPageSelected(int position) {
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        getActionBar().setSelectedNavigationItem(position);
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    }
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    @Override
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    public void onPageScrollStateChanged(int state) {
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    }
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});