Hello all,
Often we need to show data from a source such as a database in a tableView like we see in an HTML Page.
Now in Android also we can do this with the help of TableLayout.
We can create dynamic rows and add data to it.
This is something that people in computer
classes will benefit from knowing how to do this.
Here is the java code to implement this.
First create a java file named CreateTable.java and copy the contents into it.
package com.coderzheaven.pack;
import android.app.Activity;
import android.graphics.Color;
import android.graphics.Typeface;
import android.os.Bundle;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;
import android.widget.TableRow.LayoutParams;
public class CreateTable extends Activity {
String companies[] = {"Google","Windows","iPhone","Nokia","Samsung",
"Google","Windows","iPhone","Nokia","Samsung",
"Google","Windows","iPhone","Nokia","Samsung"};
String os[] = {"Android","Mango","iOS","Symbian","Bada",
"Android","Mango","iOS","Symbian","Bada",
"Android","Mango","iOS","Symbian","Bada"};
TableLayout tl;
TableRow tr;
TextView companyTV,valueTV;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
tl = (TableLayout) findViewById(R.id.maintable);
addHeaders();
addData();
}
/** This function add the headers to the table **/
public void addHeaders(){
/** Create a TableRow dynamically **/
tr = new TableRow(this);
tr.setLayoutParams(new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
/** Creating a TextView to add to the row **/
TextView companyTV = new TextView(this);
companyTV.setText("Companies");
companyTV.setTextColor(Color.GRAY);
companyTV.setTypeface(Typeface.DEFAULT, Typeface.BOLD);
companyTV.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
companyTV.setPadding(5, 5, 5, 0);
tr.addView(companyTV); // Adding textView to tablerow.
/** Creating another textview **/
TextView valueTV = new TextView(this);
valueTV.setText("Operating Systems");
valueTV.setTextColor(Color.GRAY);
valueTV.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
valueTV.setPadding(5, 5, 5, 0);
valueTV.setTypeface(Typeface.DEFAULT, Typeface.BOLD);
tr.addView(valueTV); // Adding textView to tablerow.
// Add the TableRow to the TableLayout
tl.addView(tr, new TableLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
// we are adding two textviews for the divider because we have two columns
tr = new TableRow(this);
tr.setLayoutParams(new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
/** Creating another textview **/
TextView divider = new TextView(this);
divider.setText("-----------------");
divider.setTextColor(Color.GREEN);
divider.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
divider.setPadding(5, 0, 0, 0);
divider.setTypeface(Typeface.DEFAULT, Typeface.BOLD);
tr.addView(divider); // Adding textView to tablerow.
TextView divider2 = new TextView(this);
divider2.setText("-------------------------");
divider2.setTextColor(Color.GREEN);
divider2.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
divider2.setPadding(5, 0, 0, 0);
divider2.setTypeface(Typeface.DEFAULT, Typeface.BOLD);
tr.addView(divider2); // Adding textView to tablerow.
// Add the TableRow to the TableLayout
tl.addView(tr, new TableLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
}
/** This function add the data to the table **/
public void addData(){
for (int i = 0; i < companies.length; i++)
{
/** Create a TableRow dynamically **/
tr = new TableRow(this);
tr.setLayoutParams(new LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
/** Creating a TextView to add to the row **/
companyTV = new TextView(this);
companyTV.setText(companies[i]);
companyTV.setTextColor(Color.RED);
companyTV.setTypeface(Typeface.DEFAULT, Typeface.BOLD);
companyTV.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
companyTV.setPadding(5, 5, 5, 5);
tr.addView(companyTV); // Adding textView to tablerow.
/** Creating another textview **/
valueTV = new TextView(this);
valueTV.setText(os[i]);
valueTV.setTextColor(Color.GREEN);
valueTV.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
valueTV.setPadding(5, 5, 5, 5);
valueTV.setTypeface(Typeface.DEFAULT, Typeface.BOLD);
tr.addView(valueTV); // Adding textView to tablerow.
// Add the TableRow to the TableLayout
tl.addView(tr, new TableLayout.LayoutParams(
LayoutParams.FILL_PARENT,
LayoutParams.WRAP_CONTENT));
}
}
}
Here is the main.xml file
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/LinearLayout01"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
>
<ScrollView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:scrollbars="none">
<TableLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:stretchColumns="0,1"
android:id="@+id/maintable" >
</TableLayout>
</ScrollView>
</LinearLayout>
Now the Strings.xml file
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="hello">Hello World, CreateTable!</string>
<string name="app_name">CreateTableRows Dynamically CoderzHeaven.com</string>
</resources>
Now the project is complete and you can see the result.
Creating tableRows dynamically in Android
