Grid View

GridView In Android

In this tutorial we will learn how to implement GridView in Android Studio with simple example.

GridView:

GridView is a viewgroup that displays items in a two dimensional scrollable grid. The grid items are automatically inserted to the layout using Adapter.

• Create a new project and name it as Gridview.
• In the activity_main.xml define the GridView and it components.

File: activity_main.xml:

<RelativeLayout 
xmlns:android="http://schemas.android.com/apk/res/android"    
xmlns:tools="http://schemas.android.com/tools"    
android:layout_width="match_parent"    
android:layout_height="match_parent"    
tools:context="com.example.hss_24.gridview.MainActivity">

<GridView        
android:id="@+id/grid_view"        
android:layout_width="match_parent"        
android:layout_height="match_parent"        
android:numColumns="2">

    </GridView>

</RelativeLayout>

• Create a new layout and name it as grid_cell.
• Define ImageView and TextView in the layout to display images and texts.

File: grid_cell.xml:

<LinearLayout 
xmlns:android="http://schemas.android.com/apk/res/android"    
android:layout_width="match_parent"    
android:layout_height="match_parent"    
android:orientation="vertical"    
android:padding="10dp">

<ImageView        
android:id="@+id/image"        
android:layout_width="180dp"        
android:layout_height="180dp" />

<TextView        
android:id="@+id/text"        
android:layout_width="wrap_content"        
android:layout_height="wrap_content"        
android:text="dddd"        
android:textColor="#303F9F"        
android:textStyle="bold" />

</LinearLayout>

</LinearLayout>

• Do the following code in the java file MainActivity.java.

File: MainActivity.java:

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    String [] names = {"Cupcake","Donut","Eclair","Froyo","Ginger Bread","Honeycomb",
            "IceCream Sandwich","Jelly Bean","Kitkat","Lollipop","MarshMallow"};

    int [] images = {R.drawable.cupcake,R.drawable.donut,R.drawable.eclair,R.drawable.froyo,R.drawable.gingerbread,
            R.drawable.honeycomb,R.drawable.icecream_sandwich,R.drawable.jellybean,R.drawable.kitkat,
            R.drawable.lollipop,R.drawable.marsh_mallow};

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

        GridView gridView = (GridView)findViewById(R.id.grid_view);
        gridView.setAdapter(new MyAdapter());
    }

    public class MyAdapter extends BaseAdapter {
        public MyAdapter() {
            super();
        }

        @Override        
            public int getCount() {
            return names.length;
        }

        @Override        
            public Object getItem(int position) {
            return null;
        }

        @Override        
            public long getItemId(int position) {
            return 0;
        }

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

            LayoutInflater inflater = LayoutInflater.from(MainActivity.this);
            convertView = inflater.inflate(R.layout.grid_cell,null);

            ImageView imageView = (ImageView)convertView.findViewById(R.id.image);
            TextView textView = (TextView)convertView.findViewById(R.id.text);

            imageView.setImageResource(images[position]);
            textView.setText(names[position]);
            return convertView;
        }
    }
}

Run the Application.
Now we have learned successfully the GridView in Android.

Output:





Thank you!!!

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