Google I/O 2014 - Keynote

Swipable Tab Navigation

Download this project here : SwipableTabNavigation.zip

First Add ActionBar Compat library to application follow below post 
 http://ramsandroid4all.blogspot.in/2014/03/actionbar-tutorial-part-01-adding.html

activity_main.xml:
<android.support.v4.view.ViewPager xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/pager"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

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

fragmenta.xml:
<?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:orientation="vertical"
    android:background="#ffccff" >

    <TextView
        android:id="@+id/installedapps_customlayout_textview_appname"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="This is Fragment A"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:textColor="#000000"/>

</LinearLayout>

fragmentb.xml:
<?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="#ffffcc"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/installedapps_customlayout_textview_appname"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="This is Fragment B"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:textColor="#000000" />

</LinearLayout>

fragmentc.xml:
<?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="#ccffcc"
    android:orientation="vertical" >

    <TextView
        android:id="@+id/installedapps_customlayout_textview_appname"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="This is Fragment C"
        android:textAppearance="?android:attr/textAppearanceLarge"
        android:textColor="#000000" />

</LinearLayout>

FragmentA.java:
package com.ram.swipingtabs;

import android.annotation.SuppressLint;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

@SuppressLint("NewApi")
public class FragmentA extends Fragment
{
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState)
    {

        View rootView = inflater.inflate(R.layout.fragmenta, container, false);

        return rootView;
    }
}
 
FragmentB.java:
package com.ram.swipingtabs;

import android.annotation.SuppressLint;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

@SuppressLint("NewApi")
public class FragmentB extends Fragment
{
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState)
    {

        View rootView = inflater.inflate(R.layout.fragmentb, container, false);

        return rootView;
    }
}

FragmentC.java:
package com.ram.swipingtabs;

import android.annotation.SuppressLint;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

@SuppressLint("NewApi")
public class FragmentC extends Fragment
{
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
            Bundle savedInstanceState)
    {

        View rootView = inflater.inflate(R.layout.fragmentc, container, false);

        return rootView;
    }
}

TabsPagerAdapter.java:
package com.ram.swipingtabs;

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;

public class TabsPagerAdapter extends FragmentPagerAdapter
{

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

    @Override
    public Fragment getItem(int index)
    {

        switch (index)
        {
        case 0:

            return new FragmentA();
        case 1:

            return new FragmentB();
        case 2:

            return new FragmentC();
        }

        return null;
    }

    @Override
    public int getCount()
    {
        // get item count - equal to number of tabs
        return 3;
    }

}

MainActivity.java:
package com.ram.swipingtabs;

import android.annotation.SuppressLint;
import android.app.ActionBar;
import android.os.Bundle;
import android.support.v4.view.ViewPager;
import android.support.v7.app.ActionBarActivity;

@SuppressLint("NewApi")
public class MainActivity extends ActionBarActivity implements
        android.support.v7.app.ActionBar.TabListener
{

    private ViewPager viewPager;
    private TabsPagerAdapter mAdapter;
    private android.support.v7.app.ActionBar actionBar;
    // Tab titles
    private String[] tabs =
    { "FragmentA", "FragmentB", "FragmentC" };

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

        // Initilization
        viewPager = (ViewPager) findViewById(R.id.pager);
        actionBar = getSupportActionBar();
        mAdapter = new TabsPagerAdapter(getSupportFragmentManager());

        viewPager.setAdapter(mAdapter);
        actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
        // Hiding Title Bar
        actionBar.setDisplayShowHomeEnabled(false);
        actionBar.setDisplayShowTitleEnabled(false);
        actionBar.setDisplayUseLogoEnabled(false);

        // Adding Tabs
        for (String tab_name : tabs)
        {
            actionBar.addTab(actionBar.newTab().setText(tab_name).setTabListener(this));

        }

        /**
         * on swiping the viewpager make respective tab selected
         * */
        viewPager.setOnPageChangeListener(new ViewPager.OnPageChangeListener()
        {

            @Override
            public void onPageSelected(int position)
            {
                // on changing the page
                // make respected tab selected
                actionBar.setSelectedNavigationItem(position);
            }

            @Override
            public void onPageScrolled(int arg0, float arg1, int arg2)
            {
            }

            @Override
            public void onPageScrollStateChanged(int arg0)
            {
            }
        });
    }

    public void onTabReselected(android.support.v7.app.ActionBar.Tab arg0,
            android.support.v4.app.FragmentTransaction arg1)
    {
        // TODO Auto-generated method stub

    }

    public void onTabSelected(android.support.v7.app.ActionBar.Tab tab,
            android.support.v4.app.FragmentTransaction arg1)
    {
        // TODO Auto-generated method stub
        // on tab selected
        // show respected fragment view
        viewPager.setCurrentItem(tab.getPosition());
    }

    public void onTabUnselected(android.support.v7.app.ActionBar.Tab arg0,
            android.support.v4.app.FragmentTransaction arg1)
    {
        // TODO Auto-generated method stub

    }

}

Getting Installed Applications name and package name information from device

installedapps_activity.xml:
<?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:orientation="vertical" >

    <ListView
        android:id="@+id/installedapps_listView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </ListView>

</LinearLayout>

installedapps_customlayout:
<?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:orientation="vertical" >

    <TextView
        android:id="@+id/installedapps_customlayout_textview_appname"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceLarge" />

    <TextView
        android:id="@+id/installedapps_customlayout_textview_packagename"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textAppearance="?android:attr/textAppearanceMedium" />

</LinearLayout>

GetInstalledAppsActivity.java:
package com.ram.installedapps;

import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
import android.content.pm.ApplicationInfo;
import android.content.pm.PackageManager;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;

import com.example.checking.R;

//Class to display installed app names and package names from device
public class GetInstalledAppsActivity extends Activity
{
    // ArrayList to hold app names
    ArrayList<String> appnames;
    // ArrayList to hold app package names
    ArrayList<String> packagenames;

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {

        super.onCreate(savedInstanceState);
        // Set a Activity content from installedapps_activity layout
        setContentView(R.layout.installedapps_activity);

        // ArrayList to hold app names
        appnames = new ArrayList<String>();
        // ArrayList to hold app package names
        packagenames = new ArrayList<String>();

        // Get a handle to the listview to display installed apps information
        ListView listView = (ListView) findViewById(R.id.installedapps_listView);

        // Getting Global package information
        PackageManager packageManager = getPackageManager();

        // Get a List of all application packages that are installed on the
        // device
        List<ApplicationInfo> packageInfos = packageManager
                .getInstalledApplications(PackageManager.GET_META_DATA);

        // Getting every app information
        for (ApplicationInfo a : packageInfos)
        {

            // To get app name
            String appname = a.loadLabel(getPackageManager()).toString();
            appnames.add(appname);

            // To get app package name
            String packageName = a.packageName;
            packagenames.add(packageName);

        }

        // Creating Adapter object to create views in listview
        CustomAdapter customAdapter = new CustomAdapter();

        // Set a adapter object to the listview
        listView.setAdapter(customAdapter);
    }

    class CustomAdapter extends BaseAdapter
    {

        @Override
        public int getCount()
        {
            // return the all apps count
            return appnames.size();
        }

        @Override
        public Object getItem(int position)
        {
            // TODO Auto-generated method stub
            return null;
        }

        @Override
        public long getItemId(int position)
        {
            // TODO Auto-generated method stub
            return 0;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent)
        {
            // Inflating installedapps_customlayout
            View view = getLayoutInflater().inflate(R.layout.installedapps_customlayout,
                    null);

            // Calling Textview references
            TextView appnameTextView = (TextView) view
                    .findViewById(R.id.installedapps_customlayout_textview_appname);
            TextView packageNameTextView = (TextView) view
                    .findViewById(R.id.installedapps_customlayout_textview_packagename);

            // Setting data to the TextViews
            appnameTextView.setText(appnames.get(position));
            packageNameTextView.setText(packagenames.get(position));

            return view;
        }

    }
}
 

Give following permission in AndoridManifest.xml:
  <uses-permission android:name="android.permission.READ_PHONE_STATE" />

Updating ADT Bundle

Custom ListView video tutorial

RadioButton Video Tutorial

https://www.youtube.com/watch?v=C8MZajujBiU