Wednesday, August 12, 2015

How to add border between items in a ListView in Android

activity_main.xml

<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/rl"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:padding="10dp"
    tools:context=".MainActivity"
    android:background="#c2c3fa"
    >
    <ListView
        android:id="@+id/lv"
        android:layout_width="250dp"
        android:layout_height="wrap_content"
        android:isScrollContainer="false"
        android:background="#bdc2ff"
        />
</RelativeLayout>
res/drawable/listview_item_border.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="rectangle">
            <stroke android:color="#6f84f4" android:width="1dp"/>
        </shape>
    </item>
</selector>
MainActivity.java

package com.cfsuman.me.androidcodesnippets;

import android.app.ActionBar;
import android.graphics.Color;
import android.os.Bundle;
import android.app.Activity;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.LinearLayout.LayoutParams;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;


public class MainActivity extends Activity {

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

        // Get reference of widgets from XML layout
        final ListView lv = (ListView) findViewById(R.id.lv);

        // Initializing a new String Array
        String[] fruits = new String[] {
                "Abiu",
                "Batuan",
                "Black Mulberry",
                "Cape Gooseberry",
                "Desert banana",
                "Eastern May Hawthorn",
                "Fibrous Satinash",
                "Gooseberry",
                "Hairless rambutan",
                "Illawarra Plum",
                "Jelly Palm"
        };

        // Create a List from String Array elements
        final List<String> fruits_list = new ArrayList<String>(Arrays.asList(fruits));

        // Create an ArrayAdapter from List
        final ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>
                (this, android.R.layout.simple_list_item_1, fruits_list){
            @Override
            public View getView(int position, View convertView, ViewGroup parent){
                /// Get the Item from ListView
                View view = super.getView(position, convertView, parent);

                // Set the border of View (ListView Item)
                view.setBackground(getContext().getDrawable(R.drawable.listview_item_border));

                // Return the view
                return view;
            }
        };

        // DataBind ListView with items from ArrayAdapter
        lv.setAdapter(arrayAdapter);
    }
}
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