Add swipe dismissal for screenshot shelf view (1ad60c93) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/screenshot/ScreenshotShelfViewProxy.kt

+21 −2

Original line number	Diff line number	Diff line
		@@ -42,6 +42,7 @@ import com.android.systemui.screenshot.ScreenshotEvent.SCREENSHOT_DISMISSED_OTHE
		import com.android.systemui.screenshot.scroll.ScrollCaptureController
		import com.android.systemui.screenshot.ui.ScreenshotAnimationController
		import com.android.systemui.screenshot.ui.ScreenshotShelfView
		import com.android.systemui.screenshot.ui.SwipeGestureListener
		import com.android.systemui.screenshot.ui.binder.ScreenshotShelfViewBinder
		import com.android.systemui.screenshot.ui.viewmodel.ScreenshotViewModel
		import dagger.assisted.Assisted
		@@ -75,9 +76,17 @@ constructor(
		override var isPendingSharedTransition = false

		private val animationController = ScreenshotAnimationController(view)
		private val swipeGestureListener =
		SwipeGestureListener(
		view,
		onDismiss = { requestDismissal(ScreenshotEvent.SCREENSHOT_SWIPE_DISMISSED, it) },
		onCancel = { animationController.getSwipeReturnAnimation().start() }
		)

		init {
		ScreenshotShelfViewBinder.bind(view, viewModel, LayoutInflater.from(context))
		ScreenshotShelfViewBinder.bind(view, viewModel, LayoutInflater.from(context)) {
		swipeGestureListener.onMotionEvent(it)
		}
		addPredictiveBackListener { requestDismissal(SCREENSHOT_DISMISSED_OTHER) }
		setOnKeyListener { requestDismissal(SCREENSHOT_DISMISSED_OTHER) }
		debugLog(DEBUG_WINDOW) { "adding OnComputeInternalInsetsListener" }
		@@ -111,6 +120,10 @@ constructor(
		override fun setChipIntents(imageData: SavedImageData) {}

		override fun requestDismissal(event: ScreenshotEvent?) {
		requestDismissal(event, getDismissalVelocity())
		}

		private fun requestDismissal(event: ScreenshotEvent?, velocity: Float) {
		debugLog(DEBUG_DISMISS) { "screenshot dismissal requested: $event" }

		// If we're already animating out, don't restart the animation
		@@ -119,7 +132,7 @@ constructor(
		return
		}
		event?.let { logger.log(it, 0, packageName) }
		val animator = animationController.getExitAnimation()
		val animator = animationController.getSwipeDismissAnimation(velocity)
		animator.addListener(
		object : AnimatorListenerAdapter() {
		override fun onAnimationStart(animator: Animator) {
		@@ -222,6 +235,12 @@ constructor(
		)
		}

		private fun getDismissalVelocity(): Float {
		val isLTR = view.resources.configuration.layoutDirection == View.LAYOUT_DIRECTION_LTR
		// dismiss to the left in LTR locales, to the right in RTL
		return if (isLTR) -1.5f else 1.5f
		}

		@AssistedFactory
		interface Factory : ScreenshotViewProxy.Factory {
		override fun getProxy(context: Context, displayId: Int): ScreenshotShelfViewProxy

packages/SystemUI/src/com/android/systemui/screenshot/ui/ScreenshotAnimationController.kt

+29 −13

Original line number	Diff line number	Diff line
		@@ -20,9 +20,12 @@ import android.animation.Animator
		import android.animation.AnimatorListenerAdapter
		import android.animation.ValueAnimator
		import android.view.View
		import com.android.systemui.res.R
		import kotlin.math.abs

		class ScreenshotAnimationController(private val view: View) {
		class ScreenshotAnimationController(private val view: ScreenshotShelfView) {
		private var animator: Animator? = null
		private val actionContainer = view.requireViewById<View>(R.id.actions_container_background)

		fun getEntranceAnimation(): Animator {
		val animator = ValueAnimator.ofFloat(0f, 1f)
		@@ -41,19 +44,32 @@ class ScreenshotAnimationController(private val view: View) {
		return animator
		}

		fun getExitAnimation(): Animator {
		val animator = ValueAnimator.ofFloat(1f, 0f)
		animator.addUpdateListener { view.alpha = it.animatedValue as Float }
		animator.addListener(
		object : AnimatorListenerAdapter() {
		override fun onAnimationStart(animator: Animator) {
		view.alpha = 1f
		fun getSwipeReturnAnimation(): Animator {
		animator?.cancel()
		val animator = ValueAnimator.ofFloat(view.translationX, 0f)
		animator.addUpdateListener { view.translationX = it.animatedValue as Float }
		this.animator = animator
		return animator
		}
		override fun onAnimationEnd(animator: Animator) {
		view.alpha = 0f

		fun getSwipeDismissAnimation(velocity: Float): Animator {
		val screenWidth = view.resources.displayMetrics.widthPixels
		// translation at which point the visible UI is fully off the screen (in the direction
		// according to velocity)
		val endX =
		if (velocity < 0) {
		-1f * actionContainer.right
		} else {
		(screenWidth - actionContainer.left).toFloat()
		}
		val distance = endX - view.translationX
		val animator = ValueAnimator.ofFloat(view.translationX, endX)
		animator.addUpdateListener {
		view.translationX = it.animatedValue as Float
		view.alpha = 1f - it.animatedFraction
		}
		)
		animator.duration = ((abs(distance / velocity))).toLong()

		this.animator = animator
		return animator
		}

packages/SystemUI/src/com/android/systemui/screenshot/ui/ScreenshotShelfView.kt

+9 −0

Original line number	Diff line number	Diff line
		@@ -21,6 +21,7 @@ import android.graphics.Insets
		import android.graphics.Rect
		import android.graphics.Region
		import android.util.AttributeSet
		import android.view.MotionEvent
		import android.view.View
		import android.widget.ImageView
		import androidx.constraintlayout.widget.ConstraintLayout
		@@ -30,6 +31,7 @@ import com.android.systemui.screenshot.FloatingWindowUtil
		class ScreenshotShelfView(context: Context, attrs: AttributeSet? = null) :
		ConstraintLayout(context, attrs) {
		lateinit var screenshotPreview: ImageView
		var onTouchInterceptListener: ((MotionEvent) -> Boolean)? = null

		private val displayMetrics = context.resources.displayMetrics
		private val tmpRect = Rect()
		@@ -83,4 +85,11 @@ class ScreenshotShelfView(context: Context, attrs: AttributeSet? = null) :
		companion object {
		private const val TOUCH_PADDING_DP = 12f
		}

		override fun onInterceptTouchEvent(ev: MotionEvent): Boolean {
		if (onTouchInterceptListener?.invoke(ev) == true) {
		return true
		}
		return super.onInterceptTouchEvent(ev)
		}
		}

packages/SystemUI/src/com/android/systemui/screenshot/ui/SwipeGestureListener.kt

0 → 100644

+74 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2024 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package com.android.systemui.screenshot.ui

		import android.view.MotionEvent
		import android.view.VelocityTracker
		import android.view.View
		import com.android.systemui.screenshot.FloatingWindowUtil
		import kotlin.math.abs
		import kotlin.math.sign

		class SwipeGestureListener(
		private val view: View,
		private val onDismiss: (Float) -> Unit,
		private val onCancel: () -> Unit
		) {
		private val velocityTracker = VelocityTracker.obtain()
		private val displayMetrics = view.resources.displayMetrics

		private var startX = 0f

		fun onMotionEvent(ev: MotionEvent): Boolean {
		ev.offsetLocation(view.translationX, 0f)
		when (ev.actionMasked) {
		MotionEvent.ACTION_DOWN -> {
		velocityTracker.addMovement(ev)
		startX = ev.rawX
		}
		MotionEvent.ACTION_UP -> {
		velocityTracker.computeCurrentVelocity(1)
		val xVelocity = velocityTracker.xVelocity
		if (
		abs(xVelocity) > FloatingWindowUtil.dpToPx(displayMetrics, FLING_THRESHOLD_DP)
		) {
		onDismiss.invoke(xVelocity)
		return true
		} else if (
		abs(view.translationX) >
		FloatingWindowUtil.dpToPx(displayMetrics, DISMISS_THRESHOLD_DP)
		) {
		onDismiss.invoke(1.5f * sign(view.translationX))
		return true
		} else {
		velocityTracker.clear()
		onCancel.invoke()
		}
		}
		MotionEvent.ACTION_MOVE -> {
		velocityTracker.addMovement(ev)
		view.translationX = ev.rawX - startX
		}
		}
		return false
		}

		companion object {
		private const val DISMISS_THRESHOLD_DP = 80f
		private const val FLING_THRESHOLD_DP = .8f // dp per ms
		}
		}

packages/SystemUI/src/com/android/systemui/screenshot/ui/binder/ScreenshotShelfViewBinder.kt

+6 −2

Original line number	Diff line number	Diff line
		@@ -17,8 +17,8 @@
		package com.android.systemui.screenshot.ui.binder

		import android.view.LayoutInflater
		import android.view.MotionEvent
		import android.view.View
		import android.view.ViewGroup
		import android.widget.ImageView
		import android.widget.LinearLayout
		import androidx.lifecycle.Lifecycle
		@@ -26,16 +26,20 @@ import androidx.lifecycle.lifecycleScope
		import androidx.lifecycle.repeatOnLifecycle
		import com.android.systemui.lifecycle.repeatWhenAttached
		import com.android.systemui.res.R
		import com.android.systemui.screenshot.ui.ScreenshotShelfView
		import com.android.systemui.screenshot.ui.viewmodel.ScreenshotViewModel
		import com.android.systemui.util.children
		import kotlinx.coroutines.launch

		object ScreenshotShelfViewBinder {
		fun bind(
		view: ViewGroup,
		view: ScreenshotShelfView,
		viewModel: ScreenshotViewModel,
		layoutInflater: LayoutInflater,
		onTouchListener: (MotionEvent) -> Boolean,
		) {
		view.onTouchInterceptListener = onTouchListener

		val previewView: ImageView = view.requireViewById(R.id.screenshot_preview)
		val previewBorder = view.requireViewById<View>(R.id.screenshot_preview_border)
		previewView.clipToOutline = true