Android Add Views into a ViewGroup Dynamically

1. Create a new project and call your activity “MyActivity”
2. Go to res – layout – main.xml and put the following code:

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

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

            android:layout_width="fill_parent"

            android:layout_height="fill_parent"

            android:id="@+id/scroll">

    <LinearLayout android:layout_width="fill_parent"

                  android:layout_height="wrap_content"

                  android:id="@+id/layout"

                  android:orientation="vertical"/>

</ScrollView>

3. Go to res – layout and create a new xml called text_layout.xml and put the following code:

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

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

          android:layout_width="fill_parent"

          android:layout_height="wrap_content"

          android:id="@+id/text"/>

4. Now go to MyActivity class and put the following code:

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.view.LayoutInflater;

import android.view.View;

import android.widget.LinearLayout;

import android.widget.ScrollView;

import android.widget.TextView;

 

public class MyActivity extends Activity {

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

 

        setContentView(R.layout.main);

 

        // Parent layout

        LinearLayout parentLayout = (LinearLayout)findViewById(R.id.layout);

 

        // Layout inflater

        LayoutInflater layoutInflater = getLayoutInflater();

        View view;

 

        for (int i = 1; i < 101; i++){

            // Add the text layout to the parent layout

            view = layoutInflater.inflate(R.layout.text_layout, parentLayout, false);

 

            // In order to get the view we have to use the new view with text_layout in it

            TextView textView = (TextView)view.findViewById(R.id.text);

            textView.setText("Row " + i);

 

            // Add the text view to the parent layout

            parentLayout.addView(textView);

        }      

    }

}