[+]added screenshots and improvement UI design

.gitignore

@@ -1,4 +1,5 @@
 *.iml
+.idea
 .gradle
 /local.properties
 /.idea/libraries

README.md

@@ -1,3 +1,10 @@
 # :earth_americas: PersianLocationPicker 
 Android Location Picker/ Area Picker for Iranian
 
+
+<p align="center">
+<img src="./sc/sc1.png" width="200"/>
+<img src="./sc/sc2.png" width="200"/>
+<img src="./sc/sc3.png" width="200"/>
+
+</p>

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

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item>
+        <shape android:shape="rectangle">
+            <stroke android:color="@color/colorPrimary" android:width="1dp"/>
+        </shape>
+    </item>
+    <item android:gravity="center_vertical|left" android:left="8dp">
+        <layer-list>
+            <item android:width="12dp" android:height="12dp" android:top="2dp" android:gravity="center" android:bottom="10dp">
+                <rotate
+                    android:fromDegrees="45"
+                    android:toDegrees="45">
+                    <shape android:shape="rectangle">
+                        <stroke android:color="@color/colorPrimary" android:width="1dp"/>
+                    </shape>
+                </rotate>
+            </item>
+            <item android:top="5dp" android:width="20dp" android:height="10dp" android:bottom="21dp" android:gravity="center">
+                <shape android:shape="rectangle">
+                    <solid android:color="#fff"/>
+                </shape>
+            </item>
+        </layer-list>
+    </item>
+</layer-list>

app/src/main/res/layout/activity_main.xml

@@ -15,22 +15,13 @@
 
     <com.eram.persianlocationpickerlib.widgets.CountryPersianPicker
         android:layoutDirection="rtl"
+        android:layout_margin="10dp"
         style="@style/Widget.AppCompat.Spinner.DropDown"
+        android:background="@drawable/spinner_background"
         android:layout_width="match_parent"
         android:layout_height="wrap_content" />
 
-    <View
-        android:layout_marginTop="20dp"
-        android:layout_marginBottom="20dp"
-        android:layout_width="match_parent"
-        android:layout_weight="1"
-        android:layout_height="0dp"/>
-    <View
-        android:layout_marginTop="20dp"
-        android:layout_marginBottom="20dp"
-        android:layout_width="match_parent"
-        android:background="#555"
-        android:layout_height="1dp"/>
+
     <TextView
         android:layout_width="match_parent"
         android:layout_height="wrap_content"