I am using Navigation component, and I have a bottom navigation view in the main activity. when I tap the tab in that bottom navigation view, it seems that there is a fade in animation when the fragment appear. I don't think I manually set the animation, it seems that the animation will be there by default.
I want to remove that animation. here is the code I use in my Main Activity.
class MainActivity : AppCompatActivity(), NavController.OnDestinationChangedListener {
private lateinit var navController : NavController
lateinit var destinationTitleTextView : TextView
lateinit var progressBar : ProgressBar
lateinit var topToolbar : Toolbar
lateinit var bottomNavigationView : BottomNavigationView
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
FirebaseApp.initializeApp(this)
// Initial Setup views
navController = Navigation.findNavController(this,R.id.nav_host_fragment)
setupBottomNavMenu(navController)
setupActionBar(navController)
setUpViewDeclaration()
// Add Listeners
navController.addOnDestinationChangedListener(this)
}
private fun setUpViewDeclaration() {
destinationTitleTextView = findViewById(R.id.destination_label_text_view)
progressBar = findViewById(R.id.progressBar_main_activity)
topToolbar = findViewById(R.id.top_toolbar)
bottomNavigationView = findViewById(R.id.bottom_nav)
}
private fun setupBottomNavMenu(navController: NavController) {
bottom_nav.setupWithNavController(navController)
}
private fun setupActionBar(navController: NavController) {
setSupportActionBar(top_toolbar)
supportActionBar?.setDisplayShowTitleEnabled(false)
// set up top hierarchy destination
val appBarConfiguration = AppBarConfiguration(setOf(
R.id.destination_home,
R.id.destination_search,
R.id.destination_user_control,
R.id.destination_create_event)
)
top_toolbar.setupWithNavController(navController,appBarConfiguration)
}
}
Open Settings . Scroll down and select Accessibility. Scroll down to Display and tap Text and display. Tap the toggle switch for Remove animations to turn it on.
They help users orient themselves by expressing your app's hierarchy, using movement... Navigation transitions use motion to guide users between two screens in your app. They help users orient themselves by expressing your app's hierarchy, using movement to indicate how elements are related to one another.
All you need to do is set an attribute in the layout to tell the Android system to animate these layout changes, and system-default animations are carried out for you. Tip: If you want to supply custom layout animations, create a LayoutTransition object and supply it to the layout with the setLayoutTransition() method.
UPDATE: The latest file path please see comment below.
You can add anim file to replace the default animation.
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<!--Empty to disable animation-->
</set>
[Navigation Component] I can`t change animation from NavigationUI.setupWithNavController()
@HvSimon has provided a solution to set the global default which hasn't worked for me. Also I would like to choose/disable the animations per transition.
You can supply additional arguments to navigate()
with a NavOptions
object.
First create an animation in your res folder like res/anim/nav_enter_anim.xml
(empty for no animation):
<?xml version="1.0" encoding="utf-8"?>
<set xmlns:android="http://schemas.android.com/apk/res/android">
<!--Empty to disable animation-->
</set>
Create one animation xml per animation or reuse the same. Then supply a NavOptions
object to your navigate()
call like so:
val animationOptions = NavOptions.Builder().setEnterAnim(R.anim.nav_enter_anim)
.setExitAnim(R.anim.nav_exit_anim)
.setPopEnterAnim(R.anim.nav_pop_enter_anim)
.setPopExitAnim(R.anim.nav_pop_exit_anim).build()
findNavController().navigate(MyFragmentDirections.toMainActivity(), animationOptions)
As per this issue:
NavigationUI
is a set of helpers which follow the material design guidelines and that includes animations between BottomNavigationView items.
And you'll note in the Transitions section of the Material design guidelines, they specifically state:
Transition between active and inactive bottom navigation destinations using a cross-fade animation.
Therefore Navigation does not provide any API for customizing or removing the animations.
Note that the Navigation 2.1.0-alpha03 release did have this change:
The default animations provided by NavigationUI have been sped up from 400ms to 220ms to match the default animation speed of activities and fragments. b/130055522
So I'd suggest 1) upgrading to Navigation 2.1.0-alpha03 or higher to get the updated animations and 2) following the material design guidelines.
Of course, NavigationUI is totally optional and you can certainly do whatever you want using the underlying OnDestinationChangedListener
that NavigationUI
uses under the hood.
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