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simplifying the automatic transitions and matching iOS by scheduling the next transition once the page settles

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- means there's always a 5 second delay when manually skipping toa page
This commit is contained in:
Adam Brown 2022-01-07 15:51:03 +00:00
parent a0bda02824
commit 70c82443ee
1 changed files with 20 additions and 7 deletions
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27
vector/src/main/java/im/vector/app/features/onboarding/ftueauth/FtueAuthSplashCarouselFragment.kt
View File

@ -23,6 +23,7 @@ import android.view.View
import android.view.ViewGroup import android.view.ViewGroup
import androidx.core.view.isVisible import androidx.core.view.isVisible
import androidx.lifecycle.lifecycleScope import androidx.lifecycle.lifecycleScope
import androidx.viewpager2.widget.ViewPager2
import com.airbnb.mvrx.withState import com.airbnb.mvrx.withState
import com.google.android.material.dialog.MaterialAlertDialogBuilder import com.google.android.material.dialog.MaterialAlertDialogBuilder
import com.google.android.material.tabs.TabLayoutMediator import com.google.android.material.tabs.TabLayoutMediator
@ -30,14 +31,14 @@ import im.vector.app.BuildConfig
import im.vector.app.R import im.vector.app.R
import im.vector.app.core.extensions.incrementByOneAndWrap import im.vector.app.core.extensions.incrementByOneAndWrap
import im.vector.app.core.extensions.setCurrentItem import im.vector.app.core.extensions.setCurrentItem
import im.vector.app.core.flow.tickerFlow
import im.vector.app.databinding.FragmentFtueSplashCarouselBinding import im.vector.app.databinding.FragmentFtueSplashCarouselBinding
import im.vector.app.features.VectorFeatures import im.vector.app.features.VectorFeatures
import im.vector.app.features.onboarding.OnboardingAction import im.vector.app.features.onboarding.OnboardingAction
import im.vector.app.features.onboarding.OnboardingFlow import im.vector.app.features.onboarding.OnboardingFlow
import im.vector.app.features.settings.VectorPreferences import im.vector.app.features.settings.VectorPreferences
import kotlinx.coroutines.flow.launchIn import kotlinx.coroutines.Job
import kotlinx.coroutines.flow.onEach import kotlinx.coroutines.delay
import kotlinx.coroutines.launch
import org.matrix.android.sdk.api.failure.Failure import org.matrix.android.sdk.api.failure.Failure
import java.net.UnknownHostException import java.net.UnknownHostException
import javax.inject.Inject import javax.inject.Inject
@ -81,10 +82,22 @@ class FtueAuthSplashCarouselFragment @Inject constructor(
} }
views.splashCarousel.apply { views.splashCarousel.apply {
val itemCount = carouselAdapter.itemCount var scheduledTransition: Job? = null
tickerFlow(lifecycleScope, delayMillis = CAROUSEL_ROTATION_DELAY_MS) registerOnPageChangeCallback(object : ViewPager2.OnPageChangeCallback() {
.onEach { setCurrentItem(currentItem.incrementByOneAndWrap(max = itemCount - 1), duration = CAROUSEL_TRANSITION_TIME_MS) } override fun onPageSelected(position: Int) {
.launchIn(lifecycleScope) scheduledTransition?.cancel()
scheduledTransition = scheduleCarouselTransition()
}
})
scheduledTransition = scheduleCarouselTransition()
}
}
private fun ViewPager2.scheduleCarouselTransition(): Job {
val itemCount = adapter?.itemCount ?: throw IllegalStateException("An adapter must be set")
return lifecycleScope.launch {
delay(CAROUSEL_ROTATION_DELAY_MS)
setCurrentItem(currentItem.incrementByOneAndWrap(max = itemCount - 1), duration = CAROUSEL_TRANSITION_TIME_MS)
} }
} }