Gridview in android / Gridview example in android / Grid layout in android

In res/layout/activity_main.xml

<?xml version="1.0" encoding="utf-8"?>

<GridView xmlns:android="http://schemas.android.com/apk/res/android" 

    android:id="@+id/gridview"

    android:layout_width="fill_parent" 

    android:layout_height="fill_parent"

    android:columnWidth="90dp" <!-- coloumn width  -->

    android:numColumns="auto_fit" <!-- number of coloumn will be automatically -->

    android:verticalSpacing="10dp"

    android:horizontalSpacing="10dp"

    android:stretchMode="columnWidth"

    android:gravity="center"

/>

Open HelloGridView.java and insert the following code for the onCreate() method:

public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);

    setContentView(R.layout.main);

    GridView gridview = (GridView) findViewById(R.id.gridview);

    gridview.setAdapter(new ImageAdapter(this));

    gridview.setOnItemClickListener(new OnItemClickListener() {

        public void onItemClick(AdapterView<?> parent, View v, int position, long id) {

            Toast.makeText(HelloGridView.this, "" + position, Toast.LENGTH_SHORT).show();

        }

    });

}

ImageAdapter class which will feed the data to the gridview.

//here we have added a.jpg,b.jpg,c.jpg,d.jpg,e.jpg,f.jpg,g.jpg,h.jpg in the res/drawable folder

package com.example.test;

import android.content.Context;

import android.view.View;

import android.view.ViewGroup;

import android.widget.BaseAdapter;

import android.widget.GridView;

import android.widget.ImageView;

public class ImageAdapter extends BaseAdapter {

private Context mContext;

private Integer[] mThumbIds = {

           R.drawable.a, R.drawable.b,

           R.drawable.c, R.drawable.d,

           R.drawable.e, R.drawable.f,

           R.drawable.g, R.drawable.h

   };

    public ImageAdapter(Context c) {

        mContext = c;

    }

@Override

public int getCount() {

// TODO Auto-generated method stub

        return mThumbIds.length;

}

@Override

public Object getItem(int arg0) {

// TODO Auto-generated method stub

return null;

}

@Override

public long getItemId(int arg0) {

// TODO Auto-generated method stub

return 0;

}

@Override

public View getView(int position, View convertView, ViewGroup parent) {

// TODO Auto-generated method stub

ImageView imageView;

        if (convertView == null) {  // if it's not recycled, initialize some attributes

            imageView = new ImageView(mContext);

            imageView.setLayoutParams(new GridView.LayoutParams(85, 85));

            imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);

            imageView.setPadding(8, 8, 8, 8);

        } else {

            imageView = (ImageView) convertView;

        }

        imageView.setImageResource(mThumbIds[position]);

        return imageView;

}

}