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Code Issues Packages Projects Releases Wiki Activity

OnboardingFragment: fix crash on rotate

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This commit is contained in:
johan12345
2021-07-09 17:09:04 +02:00
parent beeefb2be1
commit 66ad6b9931
1 changed files with 29 additions and 17 deletions
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46
app/src/main/java/net/vonforst/evmap/fragment/OnboardingFragment.kt
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@@ -3,6 +3,7 @@ package net.vonforst.evmap.fragment
import android.animation.AnimatorSet
import android.animation.ObjectAnimator
import android.annotation.SuppressLint
import android.content.Context
import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
@@ -26,13 +27,7 @@ class OnboardingFragment : Fragment() {
): View {
binding = FragmentOnboardingBinding.inflate(inflater)
val adapter = OnboardingViewPagerAdapter(this) {
if (binding.viewPager.currentItem == 2) {
findNavController().navigate(R.id.action_onboarding_to_map)
} else {
binding.viewPager.setCurrentItem(binding.viewPager.currentItem + 1, true)
}
}
val adapter = OnboardingViewPagerAdapter(this)
binding.viewPager.adapter = adapter
binding.pageIndicatorView.count = adapter.itemCount
binding.viewPager.registerOnPageChangeCallback(object : ViewPager2.OnPageChangeCallback() {
@@ -59,21 +54,38 @@ class OnboardingFragment : Fragment() {
return binding.root
}
fun goToNext() {
if (binding.viewPager.currentItem == 2) {
findNavController().navigate(R.id.action_onboarding_to_map)
} else {
binding.viewPager.setCurrentItem(binding.viewPager.currentItem + 1, true)
}
}
}
class OnboardingViewPagerAdapter(fragment: Fragment, val goToNext: () -> Unit) :
class OnboardingViewPagerAdapter(fragment: Fragment) :
FragmentStateAdapter(fragment) {
override fun getItemCount(): Int = 3
override fun createFragment(position: Int): Fragment = when (position) {
0 -> WelcomeFragment(goToNext)
1 -> IconsFragment(goToNext)
2 -> DataSourceSelectFragment(goToNext)
0 -> WelcomeFragment()
1 -> IconsFragment()
2 -> DataSourceSelectFragment()
else -> throw IllegalArgumentException()
}
}
class WelcomeFragment(val goToNext: () -> Unit) : Fragment() {
abstract class OnboardingPageFragment : Fragment() {
lateinit var parent: OnboardingFragment
override fun onAttach(context: Context) {
super.onAttach(context)
parent = parentFragment as OnboardingFragment
}
}
class WelcomeFragment : OnboardingPageFragment() {
private lateinit var binding: FragmentOnboardingWelcomeBinding
override fun onCreateView(
@@ -84,7 +96,7 @@ class WelcomeFragment(val goToNext: () -> Unit) : Fragment() {
binding = FragmentOnboardingWelcomeBinding.inflate(inflater, container, false)
binding.btnGetStarted.setOnClickListener {
goToNext()
parent.goToNext()
}
return binding.root
@@ -101,7 +113,7 @@ class WelcomeFragment(val goToNext: () -> Unit) : Fragment() {
}
}
class IconsFragment(val goToNext: () -> Unit) : Fragment() {
class IconsFragment : OnboardingPageFragment() {
private lateinit var binding: FragmentOnboardingIconsBinding
val labels
@@ -121,7 +133,7 @@ class IconsFragment(val goToNext: () -> Unit) : Fragment() {
binding = FragmentOnboardingIconsBinding.inflate(inflater, container, false)
binding.btnGetStarted.setOnClickListener {
goToNext()
parent.goToNext()
}
labels.forEach { it.alpha = 0f }
@@ -155,7 +167,7 @@ class IconsFragment(val goToNext: () -> Unit) : Fragment() {
}
}
class DataSourceSelectFragment(val goToNext: () -> Unit) : Fragment() {
class DataSourceSelectFragment : OnboardingPageFragment() {
private lateinit var prefs: PreferenceDataSource
private lateinit var binding: FragmentOnboardingDataSourceBinding
@@ -205,7 +217,7 @@ class DataSourceSelectFragment(val goToNext: () -> Unit) : Fragment() {
prefs.dataSource = result
prefs.dataSourceSet = true
prefs.welcomeDialogShown = true
goToNext()
parent.goToNext()
}
animatedItems.forEach { it.alpha = 0f }
}