diff options
Diffstat (limited to 'core/src/main')
| -rw-r--r-- | core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackLayout.kt | 33 |
1 files changed, 14 insertions, 19 deletions
diff --git a/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackLayout.kt b/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackLayout.kt index 5f462b4..bf6d09d 100644 --- a/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackLayout.kt +++ b/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackLayout.kt @@ -30,6 +30,9 @@ import ca.allanwang.kau.utils.adjustAlpha import ca.allanwang.kau.utils.navigationBarColor import ca.allanwang.kau.utils.statusBarColor import java.lang.ref.WeakReference +import kotlin.math.abs +import kotlin.math.max +import kotlin.math.min /** * The layout that handles all the touch events @@ -165,10 +168,8 @@ internal class SwipeBackLayout @JvmOverloads constructor( init { dragHelper = ViewDragHelper.create(this, ViewDragCallback()) - val density = resources.displayMetrics.density - val minVel = MIN_FLING_VELOCITY * density // allow touch from anywhere on the screen - edgeSize = Math.max(resources.displayMetrics.widthPixels, resources.displayMetrics.heightPixels) + edgeSize = max(resources.displayMetrics.widthPixels, resources.displayMetrics.heightPixels) edgeFlag = edgeFlag sensitivity = 0.3f addListener(chromeFadeListener) @@ -369,10 +370,8 @@ internal class SwipeBackLayout @JvmOverloads constructor( val contentView = contentViewRef.get() ?: return KL.e { "KauSwipe cannot change view position as contentView is null; is onPostCreate called?" } // make sure that we are using the proper axis - scrollPercent = Math.abs( - if (horizontal) left.toFloat() / contentView.width - else (top.toFloat() / contentView.height) - ) + scrollPercent = abs(if (horizontal) left.toFloat() / contentView.width + else (top.toFloat() / contentView.height)) contentOffset = if (horizontal) left else top invalidate() if (scrollPercent < scrollThreshold && !isScrollOverValid) @@ -397,10 +396,10 @@ internal class SwipeBackLayout @JvmOverloads constructor( var result = Pair(0, 0) if (scrollPercent <= scrollThreshold) { // threshold not met; check velocities - if ((edgeFlag == SWIPE_EDGE_LEFT && xvel > MIN_FLING_VELOCITY) || - (edgeFlag == SWIPE_EDGE_RIGHT && xvel < -MIN_FLING_VELOCITY) || - (edgeFlag == SWIPE_EDGE_TOP && yvel > MIN_FLING_VELOCITY) || - (edgeFlag == SWIPE_EDGE_BOTTOM && yvel < -MIN_FLING_VELOCITY) + if ((edgeFlag == SWIPE_EDGE_LEFT && xvel > minVelocity) || + (edgeFlag == SWIPE_EDGE_RIGHT && xvel < -minVelocity) || + (edgeFlag == SWIPE_EDGE_TOP && yvel > minVelocity) || + (edgeFlag == SWIPE_EDGE_BOTTOM && yvel < -minVelocity) ) result = exitCaptureOffsets(edgeFlag, releasedChild) } else { @@ -425,26 +424,22 @@ internal class SwipeBackLayout @JvmOverloads constructor( override fun clampViewPositionHorizontal(child: View, left: Int, dx: Int): Int { return when (edgeFlag) { - SWIPE_EDGE_RIGHT -> Math.min(0, Math.max(left, -child.width)) - SWIPE_EDGE_LEFT -> Math.min(child.width, Math.max(left, 0)) + SWIPE_EDGE_RIGHT -> min(0, max(left, -child.width)) + SWIPE_EDGE_LEFT -> min(child.width, max(left, 0)) else -> 0 } } override fun clampViewPositionVertical(child: View, top: Int, dy: Int): Int { return when (edgeFlag) { - SWIPE_EDGE_BOTTOM -> Math.min(0, Math.max(top, -child.height)) - SWIPE_EDGE_TOP -> Math.min(child.height, Math.max(top, 0)) + SWIPE_EDGE_BOTTOM -> min(0, max(top, -child.height)) + SWIPE_EDGE_TOP -> min(child.height, max(top, 0)) else -> 0 } } } companion object { - /** - * Minimum velocity that will be detected as a fling - */ - const val MIN_FLING_VELOCITY = 400 // dips per second const val DEFAULT_SCRIM_COLOR = 0x99000000.toInt() |