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authorAllan Wang <me@allanwang.ca>2017-07-05 17:05:19 -0700
committerAllan Wang <me@allanwang.ca>2017-07-05 17:05:19 -0700
commit9bc520fc9041fed26ef965ef2420a0552ccc20d6 (patch)
tree945fce5215ade509b0a573f9c64c1dbbf0f6d368 /core/src/main
parent36471abc904ff4aa3109bd06efbc3ed493f082b2 (diff)
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More on swipe back
Diffstat (limited to 'core/src/main')
-rw-r--r--core/src/main/kotlin/ca/allanwang/kau/swipe/RelativeSlider.kt8
-rw-r--r--core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackHelper.kt29
-rw-r--r--core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackLayout.kt110
-rw-r--r--core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackPage.kt6
4 files changed, 89 insertions, 64 deletions
diff --git a/core/src/main/kotlin/ca/allanwang/kau/swipe/RelativeSlider.kt b/core/src/main/kotlin/ca/allanwang/kau/swipe/RelativeSlider.kt
index 5d54134..2bbe9b0 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/swipe/RelativeSlider.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/swipe/RelativeSlider.kt
@@ -29,10 +29,10 @@ class RelativeSlider(var curPage: SwipeBackPage) : SwipeListener {
return
}
when (edgeFlag) {
- SwipeBackLayout.EDGE_LEFT -> page.swipeBackLayout.x = Math.min(-offset * Math.max(1 - percent, 0f) + DEFAULT_OFFSET, 0f)
- SwipeBackLayout.EDGE_RIGHT -> page.swipeBackLayout.x = Math.min(offset * Math.max(1 - percent, 0f) - DEFAULT_OFFSET, 0f)
- SwipeBackLayout.EDGE_TOP -> page.swipeBackLayout.y = Math.min(-offset * Math.max(1 - percent, 0f) + DEFAULT_OFFSET, 0f)
- SwipeBackLayout.EDGE_BOTTOM -> page.swipeBackLayout.y = Math.min(offset * Math.max(1 - percent, 0f) - DEFAULT_OFFSET, 0f)
+ SWIPE_EDGE_LEFT -> page.swipeBackLayout.x = Math.min(-offset * Math.max(1 - percent, 0f) + DEFAULT_OFFSET, 0f)
+ SWIPE_EDGE_RIGHT -> page.swipeBackLayout.x = Math.min(offset * Math.max(1 - percent, 0f) - DEFAULT_OFFSET, 0f)
+ SWIPE_EDGE_TOP -> page.swipeBackLayout.y = Math.min(-offset * Math.max(1 - percent, 0f) + DEFAULT_OFFSET, 0f)
+ SWIPE_EDGE_BOTTOM -> page.swipeBackLayout.y = Math.min(offset * Math.max(1 - percent, 0f) - DEFAULT_OFFSET, 0f)
}
}
diff --git a/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackHelper.kt b/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackHelper.kt
index 0039687..92cdd7c 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackHelper.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackHelper.kt
@@ -1,6 +1,7 @@
package ca.allanwang.kau.swipe
import android.app.Activity
+import ca.allanwang.kau.R
import ca.allanwang.kau.logging.KL
import java.util.*
@@ -15,9 +16,15 @@ object SwipeBackHelper {
fun getCurrentPage(activity: Activity): SwipeBackPage = this[activity]
- fun onCreate(activity: Activity) {
- activity.overridePendingTransition(0, 0)
- pageStack.firstOrNull { it.activity === activity } ?: pageStack.push(SwipeBackPage(activity))
+ fun onCreate(activity: Activity, builder: SwipeBackPage.() -> Unit = {}) {
+ val page = pageStack.firstOrNull { it.activity === activity } ?: pageStack.push(SwipeBackPage(activity).apply { builder() })
+ val startAnimation: Int = with(page.edgeFlag) {
+ if (this and SWIPE_EDGE_LEFT > 0) R.anim.kau_slide_in_right
+ else if (this and SWIPE_EDGE_RIGHT > 0) R.anim.kau_slide_in_left
+ else if (this and SWIPE_EDGE_TOP > 0) R.anim.kau_slide_in_bottom
+ else R.anim.kau_slide_in_top
+ }
+ activity.overridePendingTransition(startAnimation, 0)
}
fun onPostCreate(activity: Activity) = this[activity].onPostCreate()
@@ -38,7 +45,21 @@ object SwipeBackHelper {
}
-fun Activity.kauSwipeOnCreate() = SwipeBackHelper.onCreate(this)
+fun Activity.kauSwipeOnCreate(builder: SwipeBackPage.() -> Unit = {}) = SwipeBackHelper.onCreate(this, builder)
fun Activity.kauSwipeOnPostCreate() = SwipeBackHelper.onPostCreate(this)
fun Activity.kauSwipeOnDestroy() = SwipeBackHelper.onDestroy(this)
fun Activity.kauSwipeFinish() = SwipeBackHelper.finish(this)
+
+const val SWIPE_EDGE_LEFT = ViewDragHelper.EDGE_LEFT
+
+const val SWIPE_EDGE_RIGHT = ViewDragHelper.EDGE_RIGHT
+
+const val SWIPE_EDGE_TOP = ViewDragHelper.EDGE_TOP
+
+const val SWIPE_EDGE_BOTTOM = ViewDragHelper.EDGE_BOTTOM
+
+const val SWIPE_EDGE_HORIZONTAL = SWIPE_EDGE_LEFT or SWIPE_EDGE_RIGHT
+
+const val SWIPE_EDGE_VERTICAL = SWIPE_EDGE_TOP or SWIPE_EDGE_BOTTOM
+
+const val SWIPE_EDGE_ALL = SWIPE_EDGE_HORIZONTAL or SWIPE_EDGE_VERTICAL \ No newline at end of file
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 d668b4c..9d5fc72 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackLayout.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackLayout.kt
@@ -17,7 +17,7 @@ import ca.allanwang.kau.utils.withAlpha
import java.lang.ref.WeakReference
class SwipeBackLayout @JvmOverloads constructor(context: Context, attrs: AttributeSet? = null, defStyle: Int = 0
-) : FrameLayout(context, attrs, defStyle), SwipeBackPageContract {
+) : FrameLayout(context, attrs, defStyle), SwipeBackContract {
override val swipeBackLayout: SwipeBackLayout
get() = this
@@ -48,7 +48,7 @@ class SwipeBackLayout @JvmOverloads constructor(context: Context, attrs: Attribu
private val dragHelper: ViewDragHelper
- private var scrollPercent: Float = 0.toFloat()
+ private var scrollPercent: Float = 0f
private var contentOffset: Int = 0
@@ -78,8 +78,8 @@ class SwipeBackLayout @JvmOverloads constructor(context: Context, attrs: Attribu
object : SwipeListener {
override fun onScroll(percent: Float, px: Int, edgeFlag: Int) {
activity?.apply {
- statusBarColor = statusBarColor.withAlpha((statusBarAlpha * (1 - percent)).toInt())
- navigationBarColor = navigationBarColor.withAlpha((navBarAlpha * (1 - percent)).toInt())
+ if (edgeCurrentFlag != SWIPE_EDGE_TOP) statusBarColor = statusBarColor.withAlpha((statusBarAlpha * (1 - percent)).toInt())
+ if (edgeCurrentFlag != SWIPE_EDGE_BOTTOM) navigationBarColor = navigationBarColor.withAlpha((navBarAlpha * (1 - percent)).toInt())
}
}
@@ -93,37 +93,38 @@ class SwipeBackLayout @JvmOverloads constructor(context: Context, attrs: Attribu
private var inLayout: Boolean = false
- /**
- * Edge being dragged
- */
- private var trackingEdge: Int = 0
-
override var edgeSize: Int
get() = dragHelper.edgeSize
set(value) {
dragHelper.edgeSize = value
}
- override var edgeFlag = EDGE_LEFT
+ override var edgeFlag = SWIPE_EDGE_LEFT
/**
* We will verify that only one axis is used at a time
*/
set(value) {
- val result = if (value and EDGE_HORIZONTAL > 0) value and EDGE_HORIZONTAL else value and EDGE_VERTICAL
field = value
dragHelper.setEdgeTrackingEnabled(value)
}
private val isHorizontal: Boolean
- get() = edgeFlag and EDGE_HORIZONTAL > 0
+ get() = edgeFlag and SWIPE_EDGE_HORIZONTAL > 0
private val isVertical: Boolean
- get() = edgeFlag and EDGE_VERTICAL > 0
+ get() = edgeFlag and SWIPE_EDGE_VERTICAL > 0
+
/**
* Specifies the edge flag that should by considered at the current moment
*/
- private var edgeChangeFlag: Int = -1
+ private var edgeCurrentFlag: Int = 0
+
+ private val isCurrentlyHorizontal: Boolean
+ get() = edgeCurrentFlag and SWIPE_EDGE_HORIZONTAL > 0
+
+ private val isCurrentlyVertical: Boolean
+ get() = edgeCurrentFlag and SWIPE_EDGE_VERTICAL > 0
init {
dragHelper = ViewDragHelper.create(this, ViewDragCallback())
@@ -211,8 +212,16 @@ class SwipeBackLayout @JvmOverloads constructor(context: Context, attrs: Attribu
override fun onLayout(changed: Boolean, left: Int, top: Int, right: Int, bottom: Int) {
inLayout = true
- //todo update
- contentView?.layout(contentOffset, 0, contentOffset + contentView!!.measuredWidth, contentView!!.measuredHeight)
+ val xOffset: Int
+ val yOffset: Int
+ if (isCurrentlyHorizontal) {
+ xOffset = contentOffset
+ yOffset = 0
+ } else {
+ xOffset = 0
+ yOffset = contentOffset
+ }
+ contentView?.layout(xOffset, yOffset, xOffset + contentView!!.measuredWidth, yOffset + contentView!!.measuredHeight)
inLayout = false
}
@@ -232,7 +241,7 @@ class SwipeBackLayout @JvmOverloads constructor(context: Context, attrs: Attribu
val baseAlpha = (scrimColor and 0xff000000.toInt()).ushr(24)
val alpha = (baseAlpha * scrimOpacity).toInt()
val color = alpha shl 24 or (scrimColor and 0xffffff)
- canvas.clipRect(0, 0, child.left, height)
+ canvas.clipRect(0, 0, width, height)
canvas.drawColor(color)
}
@@ -301,28 +310,28 @@ class SwipeBackLayout @JvmOverloads constructor(context: Context, attrs: Attribu
super.onViewPositionChanged(changedView, left, top, dx, dy)
//make sure that we are using the proper axis
val horizontal = (isHorizontal && (!isVertical || dy == 0))
- edgeChangeFlag =
+ edgeCurrentFlag =
if (horizontal)
- if (left > 0) EDGE_LEFT else EDGE_RIGHT
+ if (left > 0) SWIPE_EDGE_LEFT else SWIPE_EDGE_RIGHT
else
- if (top > 0) EDGE_BOTTOM else EDGE_TOP
+ if (top > 0) SWIPE_EDGE_BOTTOM else SWIPE_EDGE_TOP
scrollPercent = Math.abs(
if (horizontal) left.toFloat() / contentView!!.width
else (top.toFloat() / contentView!!.height))
-// KL.d("horiz $horizontal scroll $scrollPercent")
contentOffset = if (horizontal) left else top
+ KL.d("poz $horizontal $scrollPercent $contentOffset")
invalidate()
if (scrollPercent < scrollThreshold && !isScrollOverValid)
isScrollOverValid = true
- listeners.forEach { it.get()?.onScroll(scrollPercent, contentOffset, edgeChangeFlag) }
+ listeners.forEach { it.get()?.onScroll(scrollPercent, contentOffset, edgeCurrentFlag) }
if (scrollPercent >= 1) {
if (!(activity?.isFinishing ?: true)) {
if (scrollPercent >= scrollThreshold && isScrollOverValid) {
isScrollOverValid = false
- listeners.forEach { it.get()?.onScrollToClose(edgeChangeFlag) }
+ listeners.forEach { it.get()?.onScrollToClose(edgeCurrentFlag) }
}
activity?.finish()
activity?.overridePendingTransition(0, 0)
@@ -332,40 +341,48 @@ class SwipeBackLayout @JvmOverloads constructor(context: Context, attrs: Attribu
override fun onViewReleased(releasedChild: View, xvel: Float, yvel: Float) {
var result = Pair(0, 0)
+ KL.d("Release $edgeCurrentFlag $xvel $yvel")
if (scrollPercent <= scrollThreshold) {
//threshold not met; check velocities
- if ((edgeChangeFlag == EDGE_LEFT && xvel > MIN_FLING_VELOCITY)
- || (edgeChangeFlag == EDGE_RIGHT && xvel < -MIN_FLING_VELOCITY)
- || (edgeChangeFlag == EDGE_TOP && yvel > MIN_FLING_VELOCITY)
- || (edgeChangeFlag == EDGE_BOTTOM && yvel < -MIN_FLING_VELOCITY))
- result = exitCaptureOffsets(edgeChangeFlag, releasedChild)
+ if ((edgeCurrentFlag == SWIPE_EDGE_LEFT && xvel > MIN_FLING_VELOCITY)
+ || (edgeCurrentFlag == SWIPE_EDGE_RIGHT && xvel < -MIN_FLING_VELOCITY)
+ || (edgeCurrentFlag == SWIPE_EDGE_TOP && yvel < -MIN_FLING_VELOCITY)
+ || (edgeCurrentFlag == SWIPE_EDGE_BOTTOM && yvel > MIN_FLING_VELOCITY))
+ result = exitCaptureOffsets(edgeCurrentFlag, releasedChild)
} else {
//threshold met; fling to designated side
- result = exitCaptureOffsets(edgeChangeFlag, releasedChild)
+ result = exitCaptureOffsets(edgeCurrentFlag, releasedChild)
}
dragHelper.settleCapturedViewAt(result.first, result.second)
invalidate()
+ edgeCurrentFlag = 0
}
private fun exitCaptureOffsets(edgeFlag: Int, view: View): Pair<Int, Int> {
var top: Int = 0
var left: Int = 0
when (edgeFlag) {
- EDGE_LEFT -> left = view.width + OVERSCROLL_DISTANCE
- EDGE_RIGHT -> left = -(view.width + OVERSCROLL_DISTANCE)
- EDGE_TOP -> top = -(view.height + OVERSCROLL_DISTANCE)
- EDGE_BOTTOM -> top = view.height + OVERSCROLL_DISTANCE
- else -> KL.e("Unknown edgeChangeFlag $edgeChangeFlag")
+ SWIPE_EDGE_LEFT -> left = view.width + OVERSCROLL_DISTANCE
+ SWIPE_EDGE_RIGHT -> left = -(view.width + OVERSCROLL_DISTANCE)
+ SWIPE_EDGE_TOP -> top = -(view.height + OVERSCROLL_DISTANCE)
+ SWIPE_EDGE_BOTTOM -> top = view.height + OVERSCROLL_DISTANCE
+ else -> KL.e("Unknown edgeCurrentFlag $edgeCurrentFlag")
}
return Pair(left, top)
}
override fun clampViewPositionHorizontal(child: View, left: Int, dx: Int): Int {
- return if (isHorizontal) Math.min(child.width, Math.max(left, 0)) else 0
+ return if (!isHorizontal || isCurrentlyVertical) 0
+ else if (edgeFlag == SWIPE_EDGE_RIGHT) Math.min(0, Math.max(left, -child.width))
+ else if (edgeFlag == SWIPE_EDGE_LEFT) Math.min(child.width, Math.max(left, 0))
+ else Math.max(left, -child.width)
}
override fun clampViewPositionVertical(child: View, top: Int, dy: Int): Int {
- return if (isVertical) Math.min(child.height, Math.max(top, 0)) else 0
+ return if (!isVertical || isCurrentlyHorizontal) 0
+ else if (edgeFlag == SWIPE_EDGE_BOTTOM) Math.min(0, Math.max(top, -child.height))
+ else if (edgeFlag == SWIPE_EDGE_TOP) Math.min(child.height, Math.max(top, 0))
+ else Math.max(top, -child.height)
}
}
@@ -373,29 +390,16 @@ class SwipeBackLayout @JvmOverloads constructor(context: Context, attrs: Attribu
/**
* Minimum velocity that will be detected as a fling
*/
- private const val MIN_FLING_VELOCITY = 400 // dips per second
+ const val MIN_FLING_VELOCITY = 400 // dips per second
- private const val DEFAULT_SCRIM_COLOR = 0x99000000.toInt()
+ const val DEFAULT_SCRIM_COLOR = 0x99000000.toInt()
/**
* Default threshold of scroll
*/
- private const val DEFAULT_SCROLL_THRESHOLD = 0.3f
-
- private const val OVERSCROLL_DISTANCE = 10
-
- val EDGE_LEFT = ViewDragHelper.EDGE_LEFT
-
- val EDGE_RIGHT = ViewDragHelper.EDGE_RIGHT
-
- val EDGE_TOP = ViewDragHelper.EDGE_TOP
-
- val EDGE_BOTTOM = ViewDragHelper.EDGE_BOTTOM
-
- val EDGE_HORIZONTAL = EDGE_LEFT or EDGE_RIGHT
+ const val DEFAULT_SCROLL_THRESHOLD = 0.3f
- val EDGE_VERTICAL = EDGE_TOP or EDGE_BOTTOM
+ const val OVERSCROLL_DISTANCE = 10
- val EDGE_ALL = EDGE_HORIZONTAL or EDGE_VERTICAL
}
}
diff --git a/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackPage.kt b/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackPage.kt
index 56085c8..4185f30 100644
--- a/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackPage.kt
+++ b/core/src/main/kotlin/ca/allanwang/kau/swipe/SwipeBackPage.kt
@@ -10,7 +10,7 @@ import ca.allanwang.kau.logging.KL
* Created by Mr.Jude on 2015/8/3.
* 每个滑动页面的管理
*/
-class SwipeBackPage(activity: Activity) : SwipeBackPageContract by SwipeBackLayout(activity) {
+class SwipeBackPage(activity: Activity) : SwipeBackContract by SwipeBackLayout(activity) {
var activity: Activity? = activity
var slider: RelativeSlider
@@ -52,7 +52,7 @@ class SwipeBackPage(activity: Activity) : SwipeBackPageContract by SwipeBackLayo
}
-interface SwipeBackPageContract {
+interface SwipeBackContract {
var swipeEnabled: Boolean
var scrimColor: Int
val swipeBackLayout: SwipeBackLayout
@@ -64,4 +64,4 @@ interface SwipeBackPageContract {
fun addListener(listener: SwipeListener)
fun removeListener(listener: SwipeListener)
fun scrollToFinishActivity()
-}
+} \ No newline at end of file