how to remove item from gridview in android

In this tutorial we tend to area unit removing gridview within things on external button click means that we tend to area unit accessing and deleting list string part victimization remove() methodology. currently, afterward we are going to use a string list give notice methodology to update once more list values. therefore here is that the complete step by step tutorial for taking away items from GridView in golem on button click.

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Follow the button click then a gridview item delted :

 

Remove.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

 

 

                StringLIST.remove(3);

 

                arrayadapter.notifyDataSetChanged();

 

                Toast.makeText(MainActivity.this,"Delete Successfully", Toast.LENGTH_SHORT).show();

            }

        });

 

 

 

    }

 

 

Follow the source code:

 

1.MainActivity.java:

package com.akash.removeitemgrid;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.List;

import android.app.Activity;

import android.os.Bundle;

import android.view.View;

import android.widget.ArrayAdapter;

import android.widget.Button;

import android.widget.GridView;

import android.widget.Toast;

public class MainActivity extends Activity {

    GridView gridview;

    Button Remove;

    String[] GridViewItem = new String[]{

            "ANDROID",

            "HTML",

            "C#",

            "Python",

            "PHP",

            "JAVASCRIPT",

            "ASP.NET",

    };

    List<String> StringLIST;

    ArrayAdapter<String> arrayadapter;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        gridview = (GridView) findViewById(R.id.gridView1);

        Remove = (Button) findViewById(R.id.button1);

        StringLIST = new ArrayList<String>(Arrays.asList(GridViewItem));

        arrayadapter = new ArrayAdapter<String>(MainActivity.this,android.R.layout.simple_list_item_1, StringLIST);

        gridview.setAdapter(arrayadapter);

        Remove.setOnClickListener(new View.OnClickListener() {

            @Override

            public void onClick(View v) {

                StringLIST.remove(3);

                arrayadapter.notifyDataSetChanged();

                Toast.makeText(MainActivity.this,"Delete Successfully", Toast.LENGTH_SHORT).show();

            }

        });

    }

}

2.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"

    android:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context=".MainActivity" >

    <GridView

        android:id="@+id/gridView1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:background="#02bd8a"

        android:numColumns="3" >

    </GridView>

    <Button

        android:id="@+id/button1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignParentBottom="true"

        android:layout_centerHorizontal="true"

        android:text="Click here to delete Item" />

</RelativeLayout>

3.strings.xml:

<resources>

    <string name="app_name">Remove item grid</string>

</resources>

4.dimens.xml:

<resources>

    <!-- Default screen margins, per the Android Design guidelines. -->

    <dimen name="activity_horizontal_margin">16dp</dimen>

    <dimen name="activity_vertical_margin">16dp</dimen>

    </resources>

5.AndroidManifest.xml:

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

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

    package="com.akash.removeitemgrid">

    <application

        android:allowBackup="true"

        android:icon="@mipmap/ic_launcher"

        android:label="@string/app_name"

        android:roundIcon="@mipmap/ic_launcher_round"

        android:supportsRtl="true"

        android:theme="@style/AppTheme">

        <activity android:name=".MainActivity">

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

    </application>

</manifest>

6.Output: