send data fragment

app/src/main/java/com/nivesh/production/bajajfd/ui/activity/BajajFdMainActivity.kt

@@ -1,6 +1,4 @@
 package com.nivesh.production.bajajfd.ui.activity
-
-import android.R
 import android.graphics.drawable.Drawable
 import android.os.Bundle
 import android.util.Log
@@ -8,7 +6,6 @@ import androidx.appcompat.app.AppCompatActivity
 import androidx.lifecycle.ViewModelProvider
 import androidx.viewpager.widget.ViewPager
 import com.google.gson.Gson
-import com.nivesh.production.bajajfd.R
 import com.nivesh.production.bajajfd.adapter.SectionsPagerAdapter
 import com.nivesh.production.bajajfd.api.ApiClient
 import com.nivesh.production.bajajfd.databinding.ActivityBajajFdBinding
@@ -454,7 +451,11 @@ class BajajFdMainActivity : AppCompatActivity(), BajajFDInterface ,SendData{
     override fun sendDataFragment(message: String?) {
         val tag = "android:switcher:" + com.nivesh.production.bajajfd.R.id.viewPager.toString() + ":" + 1
         val f: StepFourBajajFDFragment? = supportFragmentManager.findFragmentByTag(tag) as StepFourBajajFDFragment?
-        f.displayReceivedData(message)
+        if (f != null) {
+            if (message != null) {
+                f.displayReceivedData(message)
+            }
+        }
 
     }