Android Program to Change the Background of an Activity

 Android Program to Change the Background of an Activity

Hello Today learn Android Program to Change the Background of an Activity

 follow the example.

Program to change the background of your activity. The Android Java project is successfully compiled and run on Windows system using Android AS

follow the link android studio:

1.MainActivity.Java:

import android.os.Bundle;

import android.app.Activity;

import android.view.Menu;

 

public class MainActivity extends Activity {

 

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

    }

 

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        // Inflate the menu; this adds items to the action bar if it is present.

        getMenuInflater().inflate(R.menu.main, menu);

        return true;

    }

 

}

2. activity_main.xml:

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

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context=".MainActivity"

    android:background="@drawable/background"

    >

    <TextView

        android:id="@+id/textView2"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignLeft="@+id/textView1"

        android:layout_alignParentTop="true"

        android:layout_marginTop="18dp"

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

 

    <TextView

        android:id="@+id/textView1"

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:layout_alignParentLeft="true"

        android:layout_alignParentTop="true"

        android:layout_marginTop="53dp"

        android:text="This is a Large Text View"

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

 

    <TextView

        android:id="@+id/textView3"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignLeft="@+id/textView1"

        android:layout_below="@+id/textView1"

        android:layout_marginTop="16dp"

        android:text="This is Medium Text View"

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

 

    <TextView

        android:id="@+id/textView4"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignLeft="@+id/textView3"

        android:layout_below="@+id/textView3"

        android:layout_marginTop="14dp"

        android:text="Small Text"

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

 

    <Button

        android:id="@+id/button1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignLeft="@+id/textView4"

        android:layout_below="@+id/textView4"

        android:layout_marginTop="16dp"

        android:text="Button" />

 

    <ToggleButton

        android:id="@+id/toggleButton1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignBaseline="@+id/button2"

        android:layout_alignBottom="@+id/button2"

        android:layout_alignParentRight="true"

        android:text="ToggleButton" />

 

    <Button

        android:id="@+id/button2"

        style="?android:attr/buttonStyleSmall"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignTop="@+id/button1"

        android:layout_centerHorizontal="true"

        android:text="Small Button" />

 

    <CheckBox

        android:id="@+id/checkBox1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignRight="@+id/toggleButton1"

        android:layout_below="@+id/toggleButton1"

        android:layout_marginTop="93dp"

        android:text="CheckBox" />

 

    <CheckedTextView

        android:id="@+id/checkedTextView1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignBaseline="@+id/checkBox1"

        android:layout_alignBottom="@+id/checkBox1"

        android:layout_alignLeft="@+id/button1"

        android:text="CheckedTextView" />

 

    <RadioButton

        android:id="@+id/radioButton1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignLeft="@+id/checkedTextView1"

        android:layout_below="@+id/checkBox1"

        android:layout_marginTop="34dp"

        android:text="RadioButton" />

 

    <RadioButton

        android:id="@+id/radioButton2"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignLeft="@+id/radioButton1"

        android:layout_below="@+id/radioButton1"

        android:text="RadioButton" />

 

</RelativeLayout>