(Kotlin)Fragment Back stack handle

Question

When I use backStackEntryCount > 1. popbackstack() it is not navigating to any of the fragments of my bottom navigation

What I need to know is, how to stack fragments one time only, so I can press the back button once which will be navigating to the Activity.

 private fun navBottomClick() { bottomNavigationView?.setOnItemSelectedListener { when (it.itemId) { R.id.workout -> { var fragmentTransaction: FragmentTransaction = supportFragmentManager.beginTransaction() fragmentTransaction.replace(R.id.container, WorkoutFragment(), "WORKOUT") fragmentTransaction.addToBackStack("WORKOUT") fragmentTransaction.commit() } R.id.health -> { var fragmentTransaction: FragmentTransaction = supportFragmentManager.beginTransaction() fragmentTransaction.replace(R.id.container, HealthyFoodFragment(), "HealthFood") fragmentTransaction.addToBackStack("HealthFood") fragmentTransaction.commit() } } true } }

Ramesh R · Accepted Answer · 2021-12-21 14:09:28Z

1

without backStack you can try this

override fun onBackPressed() { if (binding.bottomNavigation.selectedItemId == R.id.home) { moveTaskToBack(true) } else { binding.bottomNavigation.selectedItemId = R.id.home val homeFragment = HomeFragment.newInstance() openFragment(homeFragment) } }

edited Dec 21, 2021 at 14:09

Ramesh R

7,0874 gold badges27 silver badges40 bronze badges

answered Dec 21, 2021 at 11:08

Jaber Bin Ahamed

417 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

Over Time Over a year ago

can you please tell me binding = what here?

Jaber Bin Ahamed Over a year ago

binding is just the data binding you can do this without binding. just use your bottomNavigation id instead of binding.bottomNavigation

Over Time Over a year ago

ty bro luv ya...

fobidlim · Accepted Answer · 2021-12-21 02:25:43Z

Try to print log supportFragmentManager.backStackEntryCount.

And my opinion is the condition is supportFragmentManager.backStackEntryCount > 0.

Collectives™ on Stack Overflow

(Kotlin)Fragment Back stack handle

2 Answers 2

3 Comments

Comments

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

3 Comments

Comments

Related