diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index eaa3a3a..3153f81 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -11,12 +11,12 @@
     <ImageView
         android:id="@+id/imageView"
         android:layout_width="match_parent"
-        android:layout_height="162dp"
+        android:layout_height="@dimen/height_162"
         android:layout_gravity="top"
-        android:layout_marginTop="0dp"
-        android:layout_marginBottom="15dp"
+        android:layout_marginTop="@dimen/margin_0"
+        android:layout_marginBottom="@dimen/margin_15"
         android:background="#E7CDDA"
-        android:padding="0dp"
+        android:padding="@dimen/padding_0"
         android:scaleType="fitXY"
         android:tint="#6F000000"
         app:srcCompat="@drawable/temple_default_cover" />
@@ -26,23 +26,23 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_gravity="center"
-        android:layout_marginLeft="5dp"
-        android:layout_marginRight="5dp">
+        android:layout_marginLeft="@dimen/margin_5"
+        android:layout_marginRight="@dimen/margin_5">
 
         <Button
             android:id="@+id/insert_btn"
             android:layout_width="match_parent"
-            android:layout_height="120dp"
+            android:layout_height="@dimen/height_120"
             android:layout_alignParentTop="true"
             android:layout_centerHorizontal="true"
             android:layout_gravity="center"
-            android:layout_margin="5dp"
-            android:layout_weight="1.0"
+            android:layout_margin="@dimen/margin_5"
+            android:layout_weight="@dimen/weight_1"
             android:background="@color/orange"
             android:drawableTop="@android:drawable/ic_menu_add"
-            android:drawablePadding="0dp"
+            android:drawablePadding="@dimen/padding_0"
             android:drawableTint="#fff"
-            android:padding="20dp"
+            android:padding="@dimen/padding_20"
             android:text="Add Pooja/Dontation"
             android:textAllCaps="false"
             android:textColor="#fff" />
@@ -53,23 +53,23 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_gravity="center"
-        android:layout_marginLeft="5dp"
-        android:layout_marginRight="5dp">
+        android:layout_marginLeft="@dimen/margin_5"
+        android:layout_marginRight="@dimen/margin_5">
 
         <Button
             android:id="@+id/read_btn"
             android:layout_width="match_parent"
-            android:layout_height="120dp"
+            android:layout_height="@dimen/height_120"
             android:layout_alignParentTop="true"
             android:layout_centerHorizontal="true"
             android:layout_gravity="center"
-            android:layout_margin="5dp"
-            android:layout_weight="1.0"
+            android:layout_margin="@dimen/margin_5"
+            android:layout_weight="@dimen/weight_1"
             android:background="@color/orange"
             android:drawableTop="@android:drawable/ic_menu_search"
-            android:drawablePadding="0dp"
+            android:drawablePadding="@dimen/padding_0"
             android:drawableTint="#fff"
-            android:padding="20dp"
+            android:padding="@dimen/padding_20"
             android:text="Search Pooja/Donation"
             android:textAllCaps="false"
             android:textColor="#fff" />
@@ -77,17 +77,17 @@
         <Button
             android:id="@+id/read_all_btn"
             android:layout_width="match_parent"
-            android:layout_height="120dp"
+            android:layout_height="@dimen/height_120"
             android:layout_alignParentTop="true"
             android:layout_centerHorizontal="true"
             android:layout_gravity="center"
-            android:layout_margin="5dp"
-            android:layout_weight="1.0"
+            android:layout_margin="@dimen/margin_5"
+            android:layout_weight="@dimen/weight_1"
             android:background="@color/orange"
             android:drawableTop="@android:drawable/ic_menu_view"
-            android:drawablePadding="0dp"
+            android:drawablePadding="@dimen/padding_0"
             android:drawableTint="#fff"
-            android:padding="20dp"
+            android:padding="@dimen/padding_20"
             android:text="View All Pooja/Donation"
             android:textAllCaps="false"
             android:textColor="#fff" />
@@ -98,24 +98,24 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_gravity="center"
-        android:layout_marginLeft="5dp"
-        android:layout_marginRight="5dp">
+        android:layout_marginLeft="@dimen/margin_5"
+        android:layout_marginRight="@dimen/margin_5">
 
 
         <Button
             android:id="@+id/update_btn"
             android:layout_width="match_parent"
-            android:layout_height="120dp"
+            android:layout_height="@dimen/height_120"
             android:layout_alignParentTop="true"
             android:layout_centerHorizontal="true"
             android:layout_gravity="center"
-            android:layout_margin="5dp"
-            android:layout_weight="1.0"
+            android:layout_margin="@dimen/margin_5"
+            android:layout_weight="@dimen/weight_1"
             android:background="@color/orange"
             android:drawableTop="@android:drawable/ic_menu_edit"
-            android:drawablePadding="0dp"
+            android:drawablePadding="@dimen/padding_0"
             android:drawableTint="#fff"
-            android:padding="20dp"
+            android:padding="@dimen/padding_20"
             android:text="Edit Pooja/Donation"
             android:textAllCaps="false"
             android:textColor="#fff" />
@@ -123,17 +123,17 @@
         <Button
             android:id="@+id/delete_btn"
             android:layout_width="match_parent"
-            android:layout_height="120dp"
+            android:layout_height="@dimen/height_120"
             android:layout_alignParentTop="true"
             android:layout_centerHorizontal="true"
             android:layout_gravity="center"
-            android:layout_margin="5dp"
-            android:layout_weight="1.0"
+            android:layout_margin="@dimen/margin_5"
+            android:layout_weight="@dimen/weight_1"
             android:background="@color/orange"
             android:drawableTop="@android:drawable/ic_menu_delete"
-            android:drawablePadding="0dp"
+            android:drawablePadding="@dimen/padding_0"
             android:drawableTint="#fff"
-            android:padding="20dp"
+            android:padding="@dimen/padding_20"
             android:text="Delete Pooja/Donation"
             android:textAllCaps="false"
             android:textColor="#fff" />
diff --git a/app/src/main/res/layout/delete_data.xml b/app/src/main/res/layout/delete_data.xml
index 5d0fbd5..8ed8677 100644
--- a/app/src/main/res/layout/delete_data.xml
+++ b/app/src/main/res/layout/delete_data.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical">
@@ -13,14 +14,14 @@
             android:id="@+id/radiogroup"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:layout_margin="20dp"
+            android:layout_margin="@dimen/margin_20"
             android:orientation="vertical">
 
             <RadioButton
                 android:id="@+id/radio_pooja"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:layout_margin="15dp"
+                android:layout_margin="@dimen/margin_15"
                 android:text="@string/people_who_registered_for_pooja"
                 android:theme="@style/radioButton" />
 
@@ -28,7 +29,7 @@
                 android:id="@+id/radio_donate"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:layout_margin="15dp"
+                android:layout_margin="@dimen/margin_15"
                 android:text="@string/people_who_donated_money_for_temple"
                 android:theme="@style/radioButton" />
         </RadioGroup>
@@ -43,26 +44,26 @@
         <EditText
             android:id="@+id/uid"
             android:layout_width="match_parent"
-            android:layout_height="40dp"
+            android:layout_height="@dimen/height_40"
             android:layout_alignParentStart="true"
             android:layout_alignParentLeft="true"
             android:layout_alignParentTop="true"
-            android:layout_margin="45dp"
+            android:layout_margin="@dimen/margin_45"
             android:hint="@string/user_id" />
 
 
         <Button
             android:id="@+id/delete_btn"
-            android:layout_width="175dp"
+            android:layout_width="@dimen/width_175"
             android:layout_height="wrap_content"
             android:layout_below="@+id/uid"
             android:layout_centerHorizontal="true"
-            android:layout_marginTop="20dp"
-            android:layout_marginBottom="24dp"
+            android:layout_marginTop="@dimen/margin_20"
+            android:layout_marginBottom="@dimen/margin_24"
             android:background="@drawable/button_animated"
             android:text="@string/delete"
             android:textColor="#ffffff"
-            android:textSize="18dp" />
+            android:textSize="@dimen/text_18" />
 
 
     </RelativeLayout>
diff --git a/app/src/main/res/layout/insert_data.xml b/app/src/main/res/layout/insert_data.xml
index 1da9bd6..0cc9669 100644
--- a/app/src/main/res/layout/insert_data.xml
+++ b/app/src/main/res/layout/insert_data.xml
@@ -20,14 +20,14 @@
                 android:id="@+id/radiogroup"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
-                android:layout_margin="20dp"
+                android:layout_margin="@dimen/margin_20"
                 android:orientation="vertical">
 
                 <RadioButton
                     android:id="@+id/radio_pooja"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
-                    android:layout_margin="15dp"
+                    android:layout_margin="@dimen/margin_15"
                     android:text="@string/register_for_new_pooja"
                     android:theme="@style/radioButton" />
 
@@ -35,7 +35,7 @@
                     android:id="@+id/radio_donate"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
-                    android:layout_margin="15dp"
+                    android:layout_margin="@dimen/margin_15"
                     android:text="@string/donate_money_to_temple"
                     android:theme="@style/radioButton" />
             </RadioGroup>
@@ -52,33 +52,33 @@
             <EditText
                 android:id="@+id/uid"
                 android:layout_width="match_parent"
-                android:layout_height="50dp"
-                android:layout_margin="45dp"
+                android:layout_height="@dimen/height_50"
+                android:layout_margin="@dimen/margin_45"
                 android:hint="@string/user_id" />
 
             <TextView
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"
-                android:layout_marginStart="45dp"
-                android:layout_marginLeft="45dp"
-                android:layout_marginBottom="10dp"
+                android:layout_marginStart="@dimen/margin_45"
+                android:layout_marginLeft="@dimen/margin_45"
+                android:layout_marginBottom="@dimen/margin_10"
                 android:text="@string/select_pooja_type"
-                android:textSize="15sp" />
+                android:textSize="@dimen/text_15" />
 
             <EditText
                 android:id="@+id/money_donated"
                 android:layout_width="match_parent"
-                android:layout_height="50dp"
-                android:layout_margin="45dp"
+                android:layout_height="@dimen/height_50"
+                android:layout_margin="@dimen/margin_45"
                 android:hint="@string/enter_money_donated" />
 
             <Spinner
                 android:id="@+id/spinner1"
                 android:layout_width="match_parent"
-                android:layout_height="50dp"
-                android:layout_marginLeft="45dp"
-                android:layout_marginRight="45dp"
-                android:layout_marginBottom="45dp"
+                android:layout_height="@dimen/height_50"
+                android:layout_marginLeft="@dimen/margin_45"
+                android:layout_marginRight="@dimen/margin_45"
+                android:layout_marginBottom="@dimen/margin_45"
                 android:entries="@array/pooja_types"
                 android:prompt="@style/Base.Widget.AppCompat.Light.PopupMenu.Overflow" />
 
@@ -92,8 +92,8 @@
             <EditText
                 android:id="@+id/name"
                 android:layout_width="match_parent"
-                android:layout_height="50dp"
-                android:layout_margin="45dp"
+                android:layout_height="@dimen/height_50"
+                android:layout_margin="@dimen/margin_45"
                 android:hint="@string/name" />
 
             <EditText
@@ -106,22 +106,22 @@
             <android.support.v7.widget.AppCompatCheckBox
                 android:id="@+id/paid_check"
                 android:layout_width="match_parent"
-                android:layout_height="40dp"
-                android:layout_margin="45dp"
+                android:layout_height="@dimen/height_40"
+                android:layout_margin="@dimen/margin_45"
                 android:text="@string/PAID" />
 
 
             <Button
                 android:id="@+id/insert_btn"
-                android:layout_width="175dp"
-                android:layout_height="50dp"
+                android:layout_width="@dimen/width_175"
+                android:layout_height="@dimen/height_50"
                 android:layout_gravity="center"
-                android:layout_marginTop="45dp"
-                android:layout_marginBottom="24dp"
+                android:layout_marginTop="@dimen/margin_45"
+                android:layout_marginBottom="@dimen/margin_24"
                 android:background="@drawable/button_animated"
                 android:text="@string/insert_"
                 android:textColor="#ffffff"
-                android:textSize="18dp" />
+                android:textSize="@dimen/text_18" />
         </LinearLayout>
 
 
diff --git a/app/src/main/res/layout/layout_row_view.xml b/app/src/main/res/layout/layout_row_view.xml
index 53e6511..3483d8b 100644
--- a/app/src/main/res/layout/layout_row_view.xml
+++ b/app/src/main/res/layout/layout_row_view.xml
@@ -11,7 +11,7 @@
         xmlns:tools="http://schemas.android.com/tools"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_margin="10dp">
+        android:layout_margin="@dimen/margin_10">
 
         <LinearLayout
             android:layout_width="match_parent"
@@ -20,7 +20,7 @@
             android:orientation="horizontal">
 
             <LinearLayout
-                android:layout_width="325dp"
+                android:layout_width="@dimen/width_325"
                 android:layout_height="wrap_content"
                 android:layout_centerVertical="true"
                 android:orientation="vertical">
@@ -29,7 +29,7 @@
                     android:id="@+id/textViewId"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
-                    android:layout_margin="5dp"
+                    android:layout_margin="@dimen/margin_5"
                     android:textAppearance="?android:textAppearanceLarge"
                     tools:text="TextView" />
 
@@ -37,7 +37,7 @@
                     android:id="@+id/textViewName"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
-                    android:layout_margin="5dp"
+                    android:layout_margin="@dimen/margin_5"
                     android:textAppearance="?android:textAppearanceMedium"
                     tools:text="TextView" />
 
@@ -47,12 +47,12 @@
                 android:id="@+id/relativelayout"
                 android:layout_width="fill_parent"
                 android:layout_height="fill_parent"
-                android:layout_marginTop="6dp">
+                android:layout_marginTop="@dimen/margin_6">
 
                 <ImageView
                     android:id="@+id/circle"
-                    android:layout_width="65dp"
-                    android:layout_height="65dp"
+                    android:layout_width="@dimen/width_65"
+                    android:layout_height="@dimen/height_65"
                     android:src="@drawable/ic_circle" />
 
                 <TextView
@@ -63,11 +63,11 @@
                     android:layout_alignTop="@id/circle"
                     android:layout_alignRight="@id/circle"
                     android:layout_alignBottom="@id/circle"
-                    android:layout_margin="1dp"
+                    android:layout_margin="@dimen/margin_1"
                     android:gravity="center"
                     android:text="1"
                     android:textColor="#ffffff"
-                    android:textSize="35dp" />
+                    android:textSize="@dimen/text_35" />
 
             </RelativeLayout>
 
diff --git a/app/src/main/res/layout/read_all.xml b/app/src/main/res/layout/read_all.xml
index 60f9107..6b542aa 100644
--- a/app/src/main/res/layout/read_all.xml
+++ b/app/src/main/res/layout/read_all.xml
@@ -16,14 +16,14 @@
             android:id="@+id/radiogroup"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:layout_margin="20dp"
+            android:layout_margin="@dimen/margin_20"
             android:orientation="vertical">
 
             <CheckBox
                 android:id="@+id/donate_paid"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:layout_margin="15dp"
+                android:layout_margin="@dimen/margin_15"
                 android:text="@string/list_of_donated_people_who_paid_only"
                 android:theme="@style/radioButton" />
 
@@ -31,7 +31,7 @@
                 android:id="@+id/donate_not_paid"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:layout_margin="15dp"
+                android:layout_margin="@dimen/margin_15"
                 android:text="@string/list_of_donated_people_who_not_paid_only"
                 android:theme="@style/radioButton" />
 
@@ -40,7 +40,7 @@
                 android:id="@+id/pooja_paid"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:layout_margin="15dp"
+                android:layout_margin="@dimen/margin_15"
                 android:text="@string/list_of_registered_poojas_people_who_paid_only"
                 android:theme="@style/radioButton" />
 
@@ -49,7 +49,7 @@
                 android:id="@+id/pooja_not_paid"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:layout_margin="15dp"
+                android:layout_margin="@dimen/margin_15"
                 android:text="@string/list_of_registered_poojas_who_not_paid_only"
                 android:theme="@style/radioButton" />
         </RadioGroup>
@@ -65,23 +65,23 @@
 
         <Button
             android:id="@+id/readAll_btn1"
-            android:layout_width="175dp"
+            android:layout_width="@dimen/weight_175"
             android:layout_height="wrap_content"
             android:layout_gravity="center_horizontal"
-            android:layout_marginBottom="24dp"
+            android:layout_marginBottom="@dimen/margin_24"
             android:background="@drawable/button_animated"
             android:text="@string/read_all"
             android:textColor="#ffffff"
-            android:textSize="18sp" />
+            android:textSize="@dimen/text_18sp" />
 
         <TextView
             android:id="@+id/heading"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_margin="20dp"
+            android:layout_margin="@dimen/margin_20"
             android:text="@string/people_who_registered_for_pooja"
             android:textColor="#000000"
-            android:textSize="24dp"
+            android:textSize="@dimen/text_24"
             android:visibility="invisible" />
 
         <ListView
@@ -90,6 +90,6 @@
             android:layout_height="match_parent"
             android:layout_gravity="center_horizontal"
             android:divider="@null"
-            android:dividerHeight="0dp" />
+            android:dividerHeight="@dimen/height_0" />
     </LinearLayout>
 </LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/read_data.xml b/app/src/main/res/layout/read_data.xml
index 7575b55..edd1fa1 100644
--- a/app/src/main/res/layout/read_data.xml
+++ b/app/src/main/res/layout/read_data.xml
@@ -13,14 +13,14 @@
             android:id="@+id/radiogroup"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:layout_margin="20dp"
+            android:layout_margin="@dimen/margin_20"
             android:orientation="vertical">
 
             <RadioButton
                 android:id="@+id/radio_pooja"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:layout_margin="15dp"
+                android:layout_margin="@dimen/margin_15"
                 android:text="@string/people_who_registered_for_pooja"
                 android:theme="@style/radioButton" />
 
@@ -28,7 +28,7 @@
                 android:id="@+id/radio_donate"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:layout_margin="15dp"
+                android:layout_margin="@dimen/margin_15"
                 android:text="@string/people_who_donated_money_for_temple"
                 android:theme="@style/radioButton" />
         </RadioGroup>
@@ -43,26 +43,26 @@
         <EditText
             android:id="@+id/uid"
             android:layout_width="match_parent"
-            android:layout_height="40dp"
+            android:layout_height="@dimen/height_40"
             android:layout_alignParentStart="true"
             android:layout_alignParentLeft="true"
             android:layout_alignParentTop="true"
-            android:layout_margin="40dp"
+            android:layout_margin="@dimen/height_40"
             android:hint="@string/user_id" />
 
 
         <Button
             android:id="@+id/insert_btn"
-            android:layout_width="175dp"
+            android:layout_width="@dimen/weight_175"
             android:layout_height="wrap_content"
             android:layout_below="@+id/uid"
             android:layout_centerHorizontal="true"
-            android:layout_marginTop="25dp"
-            android:layout_marginBottom="24dp"
+            android:layout_marginTop="@dimen/margin_25"
+            android:layout_marginBottom="@dimen/margin_24"
             android:background="@drawable/button_animated"
             android:text="@string/find"
             android:textColor="#ffffff"
-            android:textSize="18dp" />
+            android:textSize="@dimen/text_18" />
 
         <TextView
             android:id="@+id/id_v"
@@ -87,7 +87,7 @@
             android:layout_below="@+id/id_l"
             android:layout_alignStart="@+id/id_l"
             android:layout_alignLeft="@+id/id_l"
-            android:layout_marginTop="31dp" />
+            android:layout_marginTop="@dimen/margin_31" />
 
         <TextView
             android:id="@+id/name_v"
@@ -104,7 +104,7 @@
             android:layout_below="@id/name_l"
             android:layout_alignStart="@id/name_l"
             android:layout_alignLeft="@id/name_l"
-            android:layout_marginTop="35dp" />
+            android:layout_marginTop="@dimen/margin_35" />
 
         <TextView
             android:id="@+id/pooja_l"
@@ -113,7 +113,7 @@
             android:layout_below="@id/name_v"
             android:layout_alignStart="@id/name_v"
             android:layout_alignLeft="@id/name_v"
-            android:layout_marginTop="35dp" />
+            android:layout_marginTop="@dimen/margin_35" />
 
 
         <TextView
@@ -123,7 +123,7 @@
             android:layout_below="@id/pooja_l"
             android:layout_alignStart="@id/name_l"
             android:layout_alignLeft="@id/name_l"
-            android:layout_marginTop="35dp" />
+            android:layout_marginTop="@dimen/margin_35" />
 
         <TextView
             android:id="@+id/paid_v"
@@ -132,7 +132,7 @@
             android:layout_below="@id/pooja_v"
             android:layout_alignStart="@id/name_v"
             android:layout_alignLeft="@id/name_v"
-            android:layout_marginTop="35dp" />
+            android:layout_marginTop="@dimen/margin_35" />
 
         <TextView
             android:id="@+id/am"
diff --git a/app/src/main/res/layout/update_data.xml b/app/src/main/res/layout/update_data.xml
index c6bf78d..28d6ddc 100644
--- a/app/src/main/res/layout/update_data.xml
+++ b/app/src/main/res/layout/update_data.xml
@@ -19,14 +19,14 @@
                 android:id="@+id/radiogroup"
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
-                android:layout_margin="20dp"
+                android:layout_margin="@dimen/margin_20"
                 android:orientation="vertical">
 
                 <RadioButton
                     android:id="@+id/radio_pooja"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
-                    android:layout_margin="15dp"
+                    android:layout_margin="@dimen/margin_15"
                     android:text="@string/update_registered_pooja_details"
                     android:theme="@style/radioButton" />
 
@@ -34,7 +34,7 @@
                     android:id="@+id/radio_donate"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
-                    android:layout_margin="15dp"
+                    android:layout_margin="@dimen/margin_15"
                     android:text="@string/update_the_details_of_donated_money"
                     android:theme="@style/radioButton" />
             </RadioGroup>
@@ -50,36 +50,36 @@
             <EditText
                 android:id="@+id/uid"
                 android:layout_width="match_parent"
-                android:layout_height="50dp"
-                android:layout_margin="45dp"
+                android:layout_height="@dimen/height_50"
+                android:layout_margin="@dimen/margin_45"
                 android:hint="@string/user_id" />
 
 
             <TextView
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content"
-                android:layout_marginStart="45dp"
-                android:layout_marginLeft="45dp"
-                android:layout_marginBottom="10dp"
+                android:layout_marginStart="@dimen/margin_45"
+                android:layout_marginLeft="@dimen/margin_45"
+                android:layout_marginBottom="@dimen/margin_10"
                 android:text="@string/select_pooja_type"
-                android:textSize="15sp" />
+                android:textSize="@dimen/text_15" />
 
 
             <EditText
                 android:id="@+id/money_donated"
                 android:layout_width="match_parent"
-                android:layout_height="50dp"
-                android:layout_margin="45dp"
+                android:layout_height="@dimen/height_50"
+                android:layout_margin="@dimen/margin_45"
                 android:hint="@string/enter_money_donated" />
 
 
             <Spinner
                 android:id="@+id/spinner1"
                 android:layout_width="match_parent"
-                android:layout_height="50dp"
-                android:layout_marginLeft="45dp"
-                android:layout_marginRight="45dp"
-                android:layout_marginBottom="45dp"
+                android:layout_height="@dimen/height_50"
+                android:layout_marginLeft="@dimen/margin_45"
+                android:layout_marginRight="@dimen/margin_45"
+                android:layout_marginBottom="@dimen/margin_45"
                 android:entries="@array/pooja_types"
                 android:prompt="@style/Base.Widget.AppCompat.Light.PopupMenu.Overflow" />
 
@@ -100,30 +100,30 @@
             <EditText
                 android:id="@+id/name"
                 android:layout_width="match_parent"
-                android:layout_height="50dp"
-                android:layout_margin="45dp"
+                android:layout_height="@dimen/height_50"
+                android:layout_margin="@dimen/margin_45"
                 android:hint="@string/name" />
 
 
             <android.support.v7.widget.AppCompatCheckBox
                 android:id="@+id/paid_check"
                 android:layout_width="match_parent"
-                android:layout_height="40dp"
-                android:layout_margin="45dp"
+                android:layout_height="@dimen/height_40"
+                android:layout_margin="@dimen/margin_45"
                 android:text="@string/PAID" />
 
 
             <Button
                 android:id="@+id/update_btn1"
-                android:layout_width="175dp"
+                android:layout_width="@dimen/weight_175"
                 android:layout_height="wrap_content"
                 android:layout_gravity="center"
-                android:layout_marginTop="45dp"
-                android:layout_marginBottom="24dp"
+                android:layout_marginTop="@dimen/margin_45"
+                android:layout_marginBottom="@dimen/margin_24"
                 android:background="@drawable/button_animated"
                 android:text="@string/update"
                 android:textColor="#ffffff"
-                android:textSize="18dp" />
+                android:textSize="@dimen/text_18" />
         </LinearLayout>
 
     </LinearLayout>
diff --git a/app/src/main/res/values/dimens.xml b/app/src/main/res/values/dimens.xml
index e00c2dd..ee3bd15 100644
--- a/app/src/main/res/values/dimens.xml
+++ b/app/src/main/res/values/dimens.xml
@@ -2,4 +2,41 @@
     <!-- Default screen margins, per the Android Design guidelines. -->
     <dimen name="activity_horizontal_margin">16dp</dimen>
     <dimen name="activity_vertical_margin">16dp</dimen>
+
+    <dimen name="padding_0">0dp</dimen>
+    <dimen name="padding_20">20dp</dimen>
+
+    <dimen name="margin_5">5dp</dimen>
+    <dimen name="margin_1">1dp</dimen>
+    <dimen name="margin_0">0dp</dimen>
+    <dimen name="margin_15">15dp</dimen>
+    <dimen name="margin_20">20dp</dimen>
+    <dimen name="margin_45">45dp</dimen>
+    <dimen name="margin_24">24dp</dimen>
+    <dimen name="margin_10">10dp</dimen>
+    <dimen name="margin_6">6dp</dimen>
+    <dimen name="margin_25">25dp</dimen>
+    <dimen name="margin_31">31dp</dimen>
+    <dimen name="margin_35">35dp</dimen>
+
+    <dimen name="weight_175">175dp</dimen>
+    <dimen name="weight_1">1.0</dimen>
+
+    <dimen name="height_120">120dp</dimen>
+    <dimen name="height_162">162dp</dimen>
+    <dimen name="height_40">40dp</dimen>
+    <dimen name="height_50">50dp</dimen>
+    <dimen name="height_65">65dp</dimen>
+    <dimen name="height_0">0dp</dimen>
+
+    <dimen name="width_325">325dp</dimen>
+    <dimen name="width_175">175dp</dimen>
+    <dimen name="width_65">65dp</dimen>
+
+    <dimen name="text_18">18dp</dimen>
+    <dimen name="text_15">15sp</dimen>
+    <dimen name="text_35">35dp</dimen>
+    <dimen name="text_18sp">18sp</dimen>
+    <dimen name="text_24">24dp</dimen>
+
 </resources>
\ No newline at end of file