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Diffstat (limited to 'core-ui/src/main/kotlin/ca/allanwang/kau/ui/widgets/ElasticDragDismissFrameLayout.kt')
-rw-r--r--core-ui/src/main/kotlin/ca/allanwang/kau/ui/widgets/ElasticDragDismissFrameLayout.kt115
1 files changed, 74 insertions, 41 deletions
diff --git a/core-ui/src/main/kotlin/ca/allanwang/kau/ui/widgets/ElasticDragDismissFrameLayout.kt b/core-ui/src/main/kotlin/ca/allanwang/kau/ui/widgets/ElasticDragDismissFrameLayout.kt
index b89373e..f4578f2 100644
--- a/core-ui/src/main/kotlin/ca/allanwang/kau/ui/widgets/ElasticDragDismissFrameLayout.kt
+++ b/core-ui/src/main/kotlin/ca/allanwang/kau/ui/widgets/ElasticDragDismissFrameLayout.kt
@@ -1,11 +1,11 @@
/*
- * Copyright 2015 Google Inc.
+ * Copyright 2018 Allan Wang
*
* 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
+ * 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,
@@ -13,22 +13,28 @@
* See the License for the specific language governing permissions and
* limitations under the License.
*/
-
package ca.allanwang.kau.ui.widgets
import android.app.Activity
import android.content.Context
import android.graphics.Color
import android.os.Build
-import androidx.annotation.RequiresApi
import android.transition.TransitionInflater
import android.util.AttributeSet
import android.view.MotionEvent
import android.view.View
import android.widget.FrameLayout
+import androidx.annotation.RequiresApi
import ca.allanwang.kau.logging.KL
import ca.allanwang.kau.ui.R
-import ca.allanwang.kau.utils.*
+import ca.allanwang.kau.utils.AnimHolder
+import ca.allanwang.kau.utils.dimen
+import ca.allanwang.kau.utils.dpToPx
+import ca.allanwang.kau.utils.isNavBarOnBottom
+import ca.allanwang.kau.utils.navigationBarColor
+import ca.allanwang.kau.utils.scaleXY
+import ca.allanwang.kau.utils.statusBarColor
+import ca.allanwang.kau.utils.withAlpha
/**
* A [FrameLayout] which responds to nested scrolls to create drag-dismissable layouts.
@@ -37,7 +43,10 @@ import ca.allanwang.kau.utils.*
*/
@RequiresApi(Build.VERSION_CODES.LOLLIPOP)
class ElasticDragDismissFrameLayout @JvmOverloads constructor(
- context: Context, attrs: AttributeSet? = null, defStyleAttr: Int = 0, defStyleRes: Int = 0
+ context: Context,
+ attrs: AttributeSet? = null,
+ defStyleAttr: Int = 0,
+ defStyleRes: Int = 0
) : FrameLayout(context, attrs, defStyleAttr, defStyleRes) {
// configurable attribs
@@ -62,8 +71,11 @@ class ElasticDragDismissFrameLayout @JvmOverloads constructor(
init {
if (attrs != null) {
val a = getContext().obtainStyledAttributes(attrs, R.styleable.ElasticDragDismissFrameLayout, 0, 0)
- dragDismissDistance = a.getDimensionPixelSize(R.styleable.ElasticDragDismissFrameLayout_dragDismissDistance, Int.MAX_VALUE).toFloat()
- dragDismissFraction = a.getFloat(R.styleable.ElasticDragDismissFrameLayout_dragDismissFraction, dragDismissFraction)
+ dragDismissDistance =
+ a.getDimensionPixelSize(R.styleable.ElasticDragDismissFrameLayout_dragDismissDistance, Int.MAX_VALUE)
+ .toFloat()
+ dragDismissFraction =
+ a.getFloat(R.styleable.ElasticDragDismissFrameLayout_dragDismissFraction, dragDismissFraction)
dragDismissScale = a.getFloat(R.styleable.ElasticDragDismissFrameLayout_dragDismissScale, dragDismissScale)
dragElacticity = a.getFloat(R.styleable.ElasticDragDismissFrameLayout_dragElasticity, dragElacticity)
a.recycle()
@@ -74,27 +86,27 @@ class ElasticDragDismissFrameLayout @JvmOverloads constructor(
/**
* Called for each drag event.
-
- * @param elasticOffset Indicating the drag offset with elasticity applied i.e. may
- * * exceed 1.
- * *
+ * @param elasticOffset Indicating the drag offset with elasticity applied i.e. may exceed 1.
+ *
* @param elasticOffsetPixels The elastically scaled drag distance in pixels.
- * *
- * @param rawOffset Value from [0, 1] indicating the raw drag offset i.e.
- * * without elasticity applied. A value of 1 indicates that the
- * * dismiss distance has been reached.
- * *
- * @param rawOffsetPixels The raw distance the user has dragged
+ *
+ * @param rawOffset Value from [0, 1] indicating the raw drag offset i.e. without elasticity applied.
+ * A value of 1 indicates that the dismiss distance has been reached.
+ *
+ * @param rawOffsetPixels The raw distance the user has dragged
*/
- internal open fun onDrag(elasticOffset: Float, elasticOffsetPixels: Float,
- rawOffset: Float, rawOffsetPixels: Float) {
+ internal open fun onDrag(
+ elasticOffset: Float,
+ elasticOffsetPixels: Float,
+ rawOffset: Float,
+ rawOffsetPixels: Float
+ ) {
}
/**
* Called when dragging is released and has exceeded the threshold dismiss distance.
*/
internal open fun onDragDismissed() {}
-
}
override fun onInterceptTouchEvent(ev: MotionEvent): Boolean {
@@ -114,8 +126,13 @@ class ElasticDragDismissFrameLayout @JvmOverloads constructor(
}
}
- override fun onNestedScroll(target: View, dxConsumed: Int, dyConsumed: Int,
- dxUnconsumed: Int, dyUnconsumed: Int) {
+ override fun onNestedScroll(
+ target: View,
+ dxConsumed: Int,
+ dyConsumed: Int,
+ dxUnconsumed: Int,
+ dyUnconsumed: Int
+ ) {
dragScale(dyUnconsumed)
}
@@ -129,12 +146,12 @@ class ElasticDragDismissFrameLayout @JvmOverloads constructor(
scaleXY = 1f
} else {
animate()
- .translationY(0f)
- .scaleXY(1f)
- .setDuration(200L)
- .setInterpolator(AnimHolder.fastOutSlowInInterpolator(context))
- .setListener(null)
- .start()
+ .translationY(0f)
+ .scaleXY(1f)
+ .setDuration(200L)
+ .setInterpolator(AnimHolder.fastOutSlowInInterpolator(context))
+ .setListener(null)
+ .start()
}
totalDrag = 0f
@@ -201,15 +218,23 @@ class ElasticDragDismissFrameLayout @JvmOverloads constructor(
translationY = 0f
scaleXY = 1f
}
- dispatchDragCallback(dragFraction, dragTo,
- Math.min(1f, Math.abs(totalDrag) / dragDismissDistance), totalDrag)
+ dispatchDragCallback(
+ dragFraction, dragTo,
+ Math.min(1f, Math.abs(totalDrag) / dragDismissDistance), totalDrag
+ )
}
- private fun dispatchDragCallback(elasticOffset: Float, elasticOffsetPixels: Float,
- rawOffset: Float, rawOffsetPixels: Float) {
+ private fun dispatchDragCallback(
+ elasticOffset: Float,
+ elasticOffsetPixels: Float,
+ rawOffset: Float,
+ rawOffsetPixels: Float
+ ) {
callbacks.forEach {
- it.onDrag(elasticOffset, elasticOffsetPixels,
- rawOffset, rawOffsetPixels)
+ it.onDrag(
+ elasticOffset, elasticOffsetPixels,
+ rawOffset, rawOffsetPixels
+ )
}
}
@@ -227,8 +252,12 @@ class ElasticDragDismissFrameLayout @JvmOverloads constructor(
private val navBarAlpha: Int = Color.alpha(activity.navigationBarColor)
private val fadeNavBar: Boolean = activity.isNavBarOnBottom
- public override fun onDrag(elasticOffset: Float, elasticOffsetPixels: Float,
- rawOffset: Float, rawOffsetPixels: Float) {
+ public override fun onDrag(
+ elasticOffset: Float,
+ elasticOffsetPixels: Float,
+ rawOffset: Float,
+ rawOffsetPixels: Float
+ ) {
if (elasticOffsetPixels > 0) {
// dragging downward, fade the status bar in proportion
activity.statusBarColor = activity.statusBarColor.withAlpha(((1f - rawOffset) * statusBarAlpha).toInt())
@@ -238,7 +267,8 @@ class ElasticDragDismissFrameLayout @JvmOverloads constructor(
activity.navigationBarColor = activity.navigationBarColor.withAlpha(navBarAlpha)
} else if (fadeNavBar) {
// dragging upward, fade the navigation bar in proportion
- activity.navigationBarColor = activity.navigationBarColor.withAlpha(((1f - rawOffset) * navBarAlpha).toInt())
+ activity.navigationBarColor =
+ activity.navigationBarColor.withAlpha(((1f - rawOffset) * navBarAlpha).toInt())
}
}
@@ -247,15 +277,18 @@ class ElasticDragDismissFrameLayout @JvmOverloads constructor(
}
}
- fun addExitListener(activity: Activity, transitionBottom: Int = R.transition.kau_exit_slide_bottom, transitionTop: Int = R.transition.kau_exit_slide_top) {
+ fun addExitListener(
+ activity: Activity,
+ transitionBottom: Int = R.transition.kau_exit_slide_bottom,
+ transitionTop: Int = R.transition.kau_exit_slide_top
+ ) {
addListener(object : ElasticDragDismissFrameLayout.SystemChromeFader(activity) {
override fun onDragDismissed() {
KL.v { "New transition" }
activity.window.returnTransition = TransitionInflater.from(activity)
- .inflateTransition(if (translationY > 0) transitionBottom else transitionTop)
+ .inflateTransition(if (translationY > 0) transitionBottom else transitionTop)
activity.finishAfterTransition()
}
})
}
-
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-01 13:19:37 +0000