Mon. Sep 26th, 2022

GridView is a ViewGroup that displays items in a two-dimensional, scrollable grid. The grid items are automatically inserted to the layout using a ListAdapter.

Same List view example you can use here just changing Listview to gridview.

For an introduction to how you can dynamically insert views using an adapter, read Building Layouts with an Adapter.

Activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <GridView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/grid"
        android:numColumns="auto_fit"/>
</LinearLayout>
Custom.xml
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:textSize="30sp"
    android:textColor="@color/colorPrimary">

</TextView>

MainActivity.java

package androiindians.gridbiew;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.GridView;
import android.widget.ListView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {

    GridView gridView;
    ArrayAdapter adp;
    String[] Courses={"Android","CoreJava","Adv Java"};
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        gridView= (GridView) findViewById(R.id.grid);

        adp=new ArrayAdapter(MainActivity.this,
                R.layout.custom,Courses);
        gridView.setAdapter(adp);

        gridView.setOnItemClickListener(
                new AdapterView.OnItemClickListener() {
                    @Override
                    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                        Toast.makeText(MainActivity.this,
                                "position="+position+" "+"id"+id, Toast.LENGTH_LONG).show();
                    }


        });

    }
}

By Rajashekar

I’m (Rajashekar) a core Android developer with complimenting skills as a web developer from India. I cherish taking up complex problems and turning them into beautiful interfaces. My love for decrypting the logic and structure of coding keeps me pushing towards writing elegant and proficient code, whether it is Android, PHP, Flutter or any other platforms. You would find me involved in cuisines, reading, travelling during my leisure hours.

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