How to set different Title in toolbar for different Fragment?

Question

I have one main activity and four fragments, I want to set titles for those fragments.

I use this one in all fragments ((AppCompatActivity)getActivity()).getSupportActionBar().setTitle("Fragment Title");

but when I press back button and come to the main screen, the title remain same from previous fragments.

Please help me fix this quick.

Thanks

score -1 · Answer 1 · answered Jan 13 '22 at 10:42

I think you can do like this on your Activity. Whenever back stack change (eg: you add or remove a Fragment), check the current visible fragment and show corresponding Toolbar title.

supportFragmentManager.addOnBackStackChangedListener {
    if (supportFragmentManager.backStackEntryCount == 0) {
        return@addOnBackStackChangedListener
    }
    val visibleFragment = supportFragmentManager.fragments.last()
    when (visibleFragment) {
        is HomeFragment -> {
            supportActionBar?.title = "Home"
        }
        is SettingFragment -> {
            supportActionBar?.title = "Setting"
        }
        // handle title for another fragment
    }
}

hi, can you explain where to add this code, and for java? thanks — Andy Jadeja, Jan 14 '22 at 12:37
@AndyJadeja you can use this code inside your `onCreate` of your `Activity` — Linh, Jan 18 '22 at 01:17

How to set different Title in toolbar for different Fragment?

1 Answers1