added background and 'shape' drawables

app/src/main/res/drawable/shape.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"  android:shape="rectangle">
+    <solid android:color="#00000000" />
+    <stroke android:width="2dip" android:color="#000000"/>
+    <padding
+        android:left="30dp"
+        android:top="20dp"
+        android:right="30dp"
+        android:bottom="20dp" />
+</shape>