made some more advancement

Author: elgroup

app/src/main/AndroidManifest.xml

@@ -9,7 +9,9 @@
             android:roundIcon="@mipmap/ic_launcher_round"
             android:supportsRtl="true"
             android:theme="@style/AppTheme">
-        <activity android:name=".MainActivity">
+        <activity
+
+                android:name=".MainActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN"/>
 

app/src/main/java/com/example/backstack_bottomnavigation/FragmentStack.kt

@@ -17,7 +17,7 @@ class FragmentStack {
 
     companion object{
 
-    var stack_object:FragmentStack?=null
+  private  var stack_object:FragmentStack?=null
 
 
         fun getInstance(count :Int):FragmentStack{
@@ -29,6 +29,10 @@ class FragmentStack {
 
     }
 
+    fun addAll(array: ArrayList<String> ?){
+        arrayList.addAll(array!!)
+    }
+
     fun push(tag:String){
      if (count==arrayList.size){
              if (remove(tag)){

app/src/main/java/com/example/backstack_bottomnavigation/MainActivity.kt

@@ -60,7 +60,8 @@ import java.util.*
              profileFragment= ProfileFragment()
              updateFragment(homeFragment,"home")
          }else{
-
+             var stack=savedInstanceState.getStringArrayList("fragStack")
+             FragmentStack.getInstance(3).addAll(stack);
              currentTag=savedInstanceState.getString("currentTag")!!
              currentFragment=supportFragmentManager.findFragmentByTag(currentTag)
             if (supportFragmentManager.findFragmentByTag("home")==null){
@@ -214,6 +215,7 @@ return false
 
      override fun onSaveInstanceState(outState: Bundle) {
          outState.putString("currentTag",currentTag)
+         outState.putStringArrayList("fragStack",FragmentStack.getInstance(3).arrayList)
          super.onSaveInstanceState(outState)
      }
 }