Using shape to define round drawable in Android

To define our shape as a drawable, create XML(s) under /res/drawable/ folder.

/res/drawable/redroundrect.xml

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<shape xmlns:android="http://schemas.android.com/apk/res/android">  <solid   android:color="#FFFF0000"/>  <corners   android:radius="15dp" />  <padding   android:left="20dp"   android:top="20dp"   android:right="20dp"   android:bottom="2dp" /> </shape>

/res/drawable/greenroundrect.xml

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<shape xmlns:android="http://schemas.android.com/apk/res/android">  <solid   android:color="#FF00FF00"/>  <corners   android:radius="15dp" />  <padding   android:left="20dp"   android:top="20dp"   android:right="20dp"   android:bottom="2dp" /> </shape>

/res/drawable/blueroundrect.xml

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<shape xmlns:android="http://schemas.android.com/apk/res/android">  <solid   android:color="#FF0000FF"/>  <corners   android:radius="15dp" />  <padding   android:left="20dp"   android:top="20dp"   android:right="20dp"   android:bottom="2dp" /> </shape>

Using it inside main.xml

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

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

    android:orientation="vertical"

    android:layout_width="fill_parent"

    android:layout_height="fill_parent"

    >

<TextView 

    android:layout_width="fill_parent"

    android:layout_height="wrap_content"

    android:text="@string/hello"

    />

<TextView 

    android:layout_width="fill_parent"

    android:layout_height="wrap_content"

    android:text="RED in XML"

    android:background="@drawable/redroundrect" />

<TextView 

    android:layout_width="fill_parent"

    android:layout_height="wrap_content"

    android:text="GREEN in XML"

    android:background="@drawable/greenroundrect" />

<TextView 

    android:layout_width="fill_parent"

    android:layout_height="wrap_content"

    android:text="BLUE in XML"

    android:background="@drawable/blueroundrect" />

<TextView 

    android:id="@+id/javared"

    android:layout_width="fill_parent"

    android:layout_height="wrap_content"

    android:text="RED using Java"/>

<TextView 

    android:id="@+id/javagreen"

    android:layout_width="fill_parent"

    android:layout_height="wrap_content"

    android:text="GREEN using Java"/>

<TextView 

    android:id="@+id/javablue"

    android:layout_width="fill_parent"

    android:layout_height="wrap_content"

    android:text="BLUE using Java"/>

</LinearLayout>










In Java code







package com.AndroidTestResources;

 

import android.app.Activity;

import android.graphics.drawable.ColorDrawable;

import android.graphics.drawable.Drawable;

import android.graphics.drawable.GradientDrawable;

import android.os.Bundle;

import android.widget.TextView;

 

public class AndroidTestResourcesActivity extends Activity {

  

 TextView javaRed, javaGreen, javaBlue;

  

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

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.main);

         

        javaRed = (TextView)findViewById(R.id.javared);

        javaGreen = (TextView)findViewById(R.id.javagreen);

        javaBlue = (TextView)findViewById(R.id.javablue);

         

        Drawable redRoundRect

        = getResources().getDrawable(R.drawable.redroundrect);

        Drawable greenRoundRect

        = getResources().getDrawable(R.drawable.greenroundrect);

        Drawable blueRoundRect

        = getResources().getDrawable(R.drawable.blueroundrect);

         

        javaRed.setBackgroundDrawable(redRoundRect);

        javaGreen.setBackgroundDrawable(greenRoundRect);

        javaBlue.setBackgroundDrawable(blueRoundRect);

    }

}