mihon/app/src/main/java/eu/kanade/tachiyomi/widget/ElevationAppBarLayout.kt

43 lines
1.3 KiB
Kotlin

package eu.kanade.tachiyomi.widget
import android.animation.ObjectAnimator
import android.animation.StateListAnimator
import android.content.Context
import android.util.AttributeSet
import com.google.android.material.R
import com.google.android.material.appbar.AppBarLayout
class ElevationAppBarLayout @JvmOverloads constructor(
context: Context,
attrs: AttributeSet? = null
) : AppBarLayout(context, attrs) {
private var origStateAnimator: StateListAnimator? = null
init {
origStateAnimator = stateListAnimator
}
fun enableElevation(liftOnScroll: Boolean) {
stateListAnimator = origStateAnimator
isLiftOnScroll = liftOnScroll
}
fun disableElevation() {
stateListAnimator = StateListAnimator().apply {
val objAnimator = ObjectAnimator.ofFloat(this, "elevation", 0f)
// Enabled and collapsible, but not collapsed means not elevated
addState(
intArrayOf(android.R.attr.enabled, R.attr.state_collapsible, -R.attr.state_collapsed),
objAnimator
)
// Default enabled state
addState(intArrayOf(android.R.attr.enabled), objAnimator)
// Disabled state
addState(IntArray(0), objAnimator)
}
}
}