Gridview pager | Horizontal Gridview |GridView with ViewPager in android

Hello Friends,

Today i am posting Gridviewpagger example, it is will display item as you want in Column and row, it is swipe as horizontal direction.  you will get page indicator of total number of pages available

import java.io.File;
import java.util.ArrayList;
import android.os.Bundle;
import android.os.Environment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager;
import android.support.v4.view.ViewPager.OnPageChangeListener;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.LinearLayout.LayoutParams;

public class MainActivity extends FragmentActivity implements OnClickListener
{

 FragmentPageAdapter mAdapter;
 ViewPager mPager;
 int mNumFragments = 0;
 int mNumItems = 0;

 ArrayList<GridItem> list = new ArrayList<GridItem>();
 
 String imagePath;
 LinearLayout llDots;
 @Override
 protected void onCreate(Bundle savedInstanceState)
 {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);
  
  imagePath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/YourFolderName/";
  File fl = new File(imagePath);
  File images[] = null;
  if(fl.exists())
  {
   if(fl.isDirectory())
   {
    images = fl.listFiles();
   }
  }
  if(images != null && images.length > 0)
  {
   for (int i = 0; i < images.length ; i++)
   {
    if(images[i] != null)
    {
     GridItem item = new GridItem();
     item.setImagePath("file://" + images[i].getPath());
     item.setTitle("file://" + images[i].getPath());
     list.add(item);
    }
   }
  }
  
  mAdapter = new FragmentPageAdapter(getSupportFragmentManager(), list, getResources());
  mPager = (ViewPager) findViewById(R.id.viewPagger);
  mPager.setOffscreenPageLimit(4);
  mPager.setAdapter(mAdapter);
  llDots = (LinearLayout) findViewById(R.id.llDots);
  
  for (int i = 0; i < mAdapter.getCount(); i++)
  {
   ImageButton imgDot = new ImageButton(this);
   imgDot.setTag(i);
   imgDot.setImageResource(R.drawable.dot_selector);
   imgDot.setBackgroundResource(0);
   imgDot.setPadding(5, 5, 5, 5);
   LayoutParams params = new LayoutParams(20, 20);
   imgDot.setLayoutParams(params);
   if(i == 0)
    imgDot.setSelected(true);
   imgDot.setOnClickListener(this);
   llDots.addView(imgDot);
  }
  
  mPager.setOnPageChangeListener(new OnPageChangeListener()
  {
   
   @Override
   public void onPageSelected(int pos)
   {
    Log.e("", "Page Selected is ===> " + pos);
    for (int i = 0; i < mAdapter.getCount(); i++)
    {
     if(i != pos)
     {
      ((ImageView)llDots.findViewWithTag(i)).setSelected(false);
     }
    }
    ((ImageView)llDots.findViewWithTag(pos)).setSelected(true);
   }
   
   @Override
   public void onPageScrolled(int pos, float arg1, int arg2)
   {
    
   }
   
   @Override
   public void onPageScrollStateChanged(int arg0)
   {
    
   }
  });
 }
 @Override
 public void onClick(View v)
 {
  if(v != null)
  {
   if(v.getTag() != null)
   {
    int pos = (Integer) v.getTag();
    for (int i = 0; i < mAdapter.getCount(); i++)
    {
     if(i != pos)
     {
      ((ImageView)llDots.findViewWithTag(i)).setSelected(false);
     }
    }
    mPager.setCurrentItem(pos, true);
    ((ImageView)llDots.findViewWithTag(pos)).setSelected(true);
   }
  }
 }
}

Note- Don't forget to add Permission Manifest File-
<uses-permission android:name=”android.permission.READ.EXTERNAL.STORAGE”> </uses-permission>

Download full source code from here GridviewpagerDemo