Merge "Fix clipping while scrolling" into rvc-dev (4c6f3ff3) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/util/animation/TransitionLayout.kt

+15 −3

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@
		package com.android.systemui.util.animation

		import android.content.Context
		import android.graphics.Canvas
		import android.graphics.PointF
		import android.graphics.Rect
		import android.util.AttributeSet
		@@ -37,6 +38,7 @@ class TransitionLayout @JvmOverloads constructor(
		defStyleAttr: Int = 0
		) : ConstraintLayout(context, attrs, defStyleAttr) {

		private val boundsRect = Rect()
		private val originalGoneChildrenSet: MutableSet<Int> = mutableSetOf()
		private val originalViewAlphas: MutableMap<Int, Float> = mutableMapOf()
		private var measureAsConstraint: Boolean = false
		@@ -147,16 +149,26 @@ class TransitionLayout @JvmOverloads constructor(
		}
		}

		override fun dispatchDraw(canvas: Canvas?) {
		val clip = !boundsRect.isEmpty
		if (clip) {
		canvas?.save()
		canvas?.clipRect(boundsRect)
		}
		super.dispatchDraw(canvas)
		if (clip) {
		canvas?.restore()
		}
		}

		private fun updateBounds() {
		val layoutLeft = left
		val layoutTop = top
		setLeftTopRightBottom(layoutLeft, layoutTop, layoutLeft + currentState.width,
		layoutTop + currentState.height)
		val bounds = clipBounds ?: Rect()
		bounds.set(left, top, right, bottom)
		clipBounds = bounds
		translationX = currentState.translation.x
		translationY = currentState.translation.y
		boundsRect.set(0, 0, (width + translationX).toInt(), (height + translationY).toInt())
		}

		/**