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adding helper for recalculating percentage heights within a constraint layout

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- this allows percentages to be used which make of the screen viewport rather than the accumulated scroll height
This commit is contained in:
Adam Brown 2022-03-23 16:27:42 +00:00
parent b439322776
commit 2cbbfca73f
1 changed files with 17 additions and 0 deletions
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17
vector/src/main/java/im/vector/app/core/extensions/ConstraintLayout.kt
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@ -16,8 +16,12 @@
package im.vector.app.core.extensions
import android.view.View
import androidx.constraintlayout.widget.ConstraintLayout
import androidx.constraintlayout.widget.ConstraintSet
import androidx.core.view.children
import androidx.core.view.doOnLayout
import kotlin.math.roundToInt
fun ConstraintLayout.updateConstraintSet(block: (ConstraintSet) -> Unit) {
ConstraintSet().let {
@ -26,3 +30,16 @@ fun ConstraintLayout.updateConstraintSet(block: (ConstraintSet) -> Unit) {
it.applyTo(this)
}
}
fun ConstraintLayout.realignPercentagesToParent() {
doOnLayout {
val rootHeight = (parent as View).height
children.forEach { child ->
val params = child.layoutParams as ConstraintLayout.LayoutParams
if (params.matchConstraintPercentHeight != 1.0f) {
params.height = (rootHeight * params.matchConstraintPercentHeight).roundToInt()
child.layoutParams = params
}
}
}
}