Android TableLayout in Kotlin
Android TableLayout is a ViewGroup subclass which is used to display the child View elements in rows and columns. It will arrange all the children elements into rows and columns and does not display any border lines in between rows, columns or cells.
The working of TableLayout is almost similar to HTML table and it contains as many columns as row with the most cells.
How to declare TableLayout and TableRow?
The TableLayout can be defined using <TableLayout> like below:
XML
android:layout_width = "match_parent" android:layout_height = "match_parent" android:layout_marginTop = "10dp" android:paddingLeft = "5dp" android:paddingRight = "5dp" > // Add Table rows here </ TableLayout > |
and TableRow can be defined using
XML
< TableRow android:background = "#51B435" android:padding = "10dp" > < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "Rank" /> </ TableRow > |
activity_main.xml file
In this file, we declare the TableLayout and start adding table rows with the help of TableRow. We are creating ranking table of players where we define four columns Rank, Name, Country and Points.
The code for the Table is:
XML
<? xml version = "1.0" encoding = "utf-8" ?> android:layout_width = "match_parent" android:layout_height = "match_parent" android:layout_marginTop = "10dp" android:paddingLeft = "5dp" android:paddingRight = "5dp" > < TextView android:id = "@+id/txt" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:text = "ICC Ranking of Players:" android:textSize = "20dp" android:textStyle = "bold" > </ TextView > < TableRow android:background = "#51B435" android:padding = "10dp" > < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "Rank" /> < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "Player" /> < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "Team" /> < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "Points" /> </ TableRow > < TableRow android:background = "#F0F7F7" android:padding = "5dp" > < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "1" /> < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "Virat Kohli" /> < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "IND" /> < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "895" /> </ TableRow > < TableRow android:background = "#F0F7F7" android:padding = "5dp" > < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "2" /> < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "Rohit Sharma" /> < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "IND" /> < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "863" /> </ TableRow > < TableRow android:background = "#F0F7F7" android:padding = "5dp" > < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "3" /> < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "Faf du Plessis" /> < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "PAK" /> < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "834" /> </ TableRow > < TableRow android:background = "#F0F7F7" android:padding = "5dp" > < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "4" /> < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "Steven Smith" /> < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "AUS" /> < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "820" /> </ TableRow > < TableRow android:background = "#F0F7F7" android:padding = "5dp" > < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "5" /> < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "Ross Taylor" /> < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "NZ" /> < TextView android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:layout_weight = "1" android:text = "817" /> </ TableRow > </ TableLayout > |
MainActivity.kt
When we have created layout, we need to load the XML layout resource from our activity onCreate() callback method and access the UI element form the XML using findViewById.
Kotlin
package com.geeksforgeeks.myfirstKotlinapp import androidx.appcompat.app.AppCompatActivity import android.os.Bundle class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super .onCreate(savedInstanceState) setContentView(R.layout.activity_main) // finding the UI elements } } |
TableLayout Output:
We need to run using Android Virtual Device(AVD) to see the output.
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