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Sticky2Activity.kt
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Sticky2Activity.kt
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package net.meilcli.etee.sticky
import android.os.Bundle
import android.view.ViewGroup
import androidx.appcompat.app.AppCompatActivity
import androidx.core.content.ContextCompat
import androidx.core.view.ViewCompat
import androidx.core.view.updateLayoutParams
import androidx.core.view.updatePadding
import kotlinx.android.synthetic.main.activity_sticky2.*
import net.meilcli.etee.R
import net.meilcli.etee.extensions.setTranslucentStatusAndNavigationBarLayout
class Sticky2Activity : AppCompatActivity() {
private val defaultScrollViewPaddingTop by lazy { scrollView.paddingTop }
private var scrollViewPaddingTopByTabLayout = 0
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_sticky)
setTranslucentStatusAndNavigationBarLayout(
ContextCompat.getColor(this, R.color.translucent),
ContextCompat.getColor(this, R.color.translucent)
)
fitsStatusBar()
fitsNavigationBar()
fitsTabLayout()
}
private fun fitsStatusBar() {
ViewCompat.setOnApplyWindowInsetsListener(statusBarMargin) { _, inset ->
statusBarMargin.updateLayoutParams {
height = inset.systemWindowInsetTop
}
return@setOnApplyWindowInsetsListener inset
}
}
private fun fitsNavigationBar() {
val defaultScrollViewPaddingBottom = scrollView.paddingBottom
ViewCompat.setOnApplyWindowInsetsListener(scrollView) { _, inset ->
scrollView.updatePadding(bottom = defaultScrollViewPaddingBottom + inset.systemWindowInsetBottom)
return@setOnApplyWindowInsetsListener inset
}
}
private fun fitsTabLayout() {
ViewCompat.setOnApplyWindowInsetsListener(tabLayout) { _, inset ->
tabLayout.updateLayoutParams<ViewGroup.MarginLayoutParams> {
topMargin = inset.systemWindowInsetTop
rightMargin = inset.systemWindowInsetRight
}
return@setOnApplyWindowInsetsListener inset
}
tabLayout.addOnLayoutChangeListener { _, _, _, _, _, _, _, _, _ ->
scrollViewPaddingTopByTabLayout = tabLayout.height
setScrollViewPadding()
}
}
private fun setScrollViewPadding() {
scrollView.updatePadding(top = defaultScrollViewPaddingTop + scrollViewPaddingTopByTabLayout)
}
}