diff --git a/app/src/main/java/com/spisoft/spsgenderswitch/MainActivity.java b/app/src/main/java/com/spisoft/spsgenderswitch/MainActivity.java
index 401c8fa..3b32f09 100644
--- a/app/src/main/java/com/spisoft/spsgenderswitch/MainActivity.java
+++ b/app/src/main/java/com/spisoft/spsgenderswitch/MainActivity.java
@@ -3,6 +3,9 @@
 import androidx.appcompat.app.AppCompatActivity;
 
 import android.os.Bundle;
+import android.widget.Toast;
+
+import com.spisoft.spsswitch.SpGenderSwitch;
 
 public class MainActivity extends AppCompatActivity {
 
@@ -10,5 +13,13 @@ public class MainActivity extends AppCompatActivity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+
+        final SpGenderSwitch Met = findViewById(R.id.met);
+        Met.setChangeValueListener(new SpGenderSwitch.OnChangeValueListener() {
+            public void onEvent() {
+                //do whatever you want to do when the event is performed.
+                Toast.makeText(MainActivity.this, Met.GetText(), Toast.LENGTH_SHORT).show();
+            }
+        });
     }
 }
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 3cc01b7..6d7b39d 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -7,13 +7,13 @@
     tools:context=".MainActivity">
 
     <com.spisoft.spsswitch.SpGenderSwitch
+        android:id="@+id/met"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
         app:SwitchSize="@dimen/sps_lpr_sz_50"
         app:TitleFemale="@string/title_female"
-        app:TitleMale="@string/title_male"
         app:TitleGender="@string/title_gender"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        tools:ignore="MissingConstraints">
-    </com.spisoft.spsswitch.SpGenderSwitch>
+        app:TitleMale="@string/title_male"
+        tools:ignore="MissingConstraints"></com.spisoft.spsswitch.SpGenderSwitch>
 
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/spgender/src/main/java/com/spisoft/spsswitch/SpGenderSwitch.java b/spgender/src/main/java/com/spisoft/spsswitch/SpGenderSwitch.java
index 92299dd..4dfe021 100644
--- a/spgender/src/main/java/com/spisoft/spsswitch/SpGenderSwitch.java
+++ b/spgender/src/main/java/com/spisoft/spsswitch/SpGenderSwitch.java
@@ -25,6 +25,15 @@ public class SpGenderSwitch extends RelativeLayout {
     private TextView iText;
     private String TitleGender, TitleMale, TitleFemale;
     private int TextColor;
+    OnChangeValueListener mListener;
+
+    public interface OnChangeValueListener {
+        void onEvent();
+    }
+
+    public void setChangeValueListener(OnChangeValueListener eventListener) {
+        mListener = eventListener;
+    }
 
     public SpGenderSwitch(Context context) {
         super(context);
@@ -102,6 +111,8 @@ public void onAnimationEnd(Animation animation) {
                             mVal = GENRE_FEMALE;
                         }
                         SwitchView(mVal);
+                        if(mListener!=null)
+                            mListener.onEvent();
                     }
 
                     @Override