Hello Android The First App

Hello Android The First App. 

Code for HelloAndroid.java 

package com.example.hello;

import android.app.Activity;

import android.os.Bundle;

public class HelloAndroidActivity extends Activity {

    /** Called when the activity is first created. */

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);       

       

    }

}

Code XML in main.xml

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

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

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    android:orientation="vertical" >

    <TextView

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:text="@string/hello" />

    <TextView

        android:id="@+id/textView1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Small Text"

        android:textAppearance="?android:attr/textAppearanceSmall" />

    <TextView

        android:id="@+id/textView2"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:textColor="#0000FF"

        android:text="Medium Text Blue Colour"

        android:textAppearance="?android:attr/textAppearanceMedium" />

    <TextView

        android:id="@+id/textView3"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:text="Large Text Red Colour"

        android:textColor="#FF0000"

        android:textAppearance="?android:attr/textAppearanceLarge" />

</LinearLayout>

For Change Text colour

#FF0000 

 mean  Red = FF(in hex ) Green = 00  Blue = 00  ( FF hex = 255 decimal )

Download Sourcecode in Full Project here !