增加要素捕捉功能，
增加测量功能
This commit is contained in:
squallzhjch
@@ -1,6 +1,5 @@
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package com.navinfo.omqs.ui.other
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import android.util.Log
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import android.view.View
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import androidx.lifecycle.Lifecycle
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import androidx.lifecycle.LifecycleOwner
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@@ -0,0 +1,119 @@
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package com.navinfo.omqs.ui.other.anim
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import android.R.attr.animation
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import android.animation.Animator
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import android.animation.AnimatorListenerAdapter
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import android.animation.ObjectAnimator
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import android.animation.ValueAnimator
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import android.os.Build
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import android.view.View
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import android.view.animation.DecelerateInterpolator
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import android.widget.ImageView
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import androidx.recyclerview.widget.RecyclerView
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import com.navinfo.omqs.ui.other.anim.ViewHolderAnimator.ViewHolderAnimatorListener
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object ExpandableViewHoldersUtil {
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//自定义处理列表中右侧图标，这里是一个旋转动画
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fun rotateExpandIcon(mImage: ImageView, from: Float, to: Float) {
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val valueAnimator: ValueAnimator = ValueAnimator.ofFloat(from, to) //属性动画
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valueAnimator.duration = 500
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valueAnimator.interpolator = DecelerateInterpolator()
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valueAnimator.addUpdateListener { valueAnimator ->
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mImage.rotation = valueAnimator.animatedValue as Float
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}
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valueAnimator.start()
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}
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//参数介绍：1、holder对象 2、展开部分的View，由holder.getExpandView()方法获取 3、animate参数为true，则有动画效果
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fun openH(holder: RecyclerView.ViewHolder, expandView: View, animate: Boolean) {
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if (animate) {
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expandView.visibility = View.VISIBLE
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//改变高度的动画
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val animator = ViewHolderAnimator.ofItemViewHeight(holder)
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//扩展的动画，结束后透明度动画开始
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animator!!.addListener(object : AnimatorListenerAdapter() {
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override fun onAnimationEnd(animation: Animator) {
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val alphaAnimator = ObjectAnimator.ofFloat(expandView, View.ALPHA, 1f)
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alphaAnimator.addListener(ViewHolderAnimatorListener(holder))
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alphaAnimator.start()
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}
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})
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animator.start()
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} else {//为false时直接显示
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expandView.visibility = View.VISIBLE
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expandView.alpha = 1f
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}
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}
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//类似于打开的方法
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fun closeH(holder: RecyclerView.ViewHolder, expandView: View, animate: Boolean) {
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if (animate) {
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expandView.visibility = View.GONE
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val animator = ViewHolderAnimator.ofItemViewHeight(holder)
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expandView.visibility = View.VISIBLE
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animator!!.addListener(object : AnimatorListenerAdapter() {
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override fun onAnimationEnd(animation: Animator) {
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expandView.visibility = View.GONE
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expandView.alpha = 0f
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}
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override fun onAnimationCancel(animation: Animator) {
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expandView.visibility = View.GONE
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expandView.alpha = 0f
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}
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})
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animator.start()
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} else {
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expandView.visibility = View.GONE
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expandView.alpha = 0f
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}
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}
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//获取展开部分的View
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interface Expandable {
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val expandView: View
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}
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class KeepOneH<VH> where VH : RecyclerView.ViewHolder, VH : Expandable? {
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//-1表示所有item是关闭状态，opend为pos值的表示pos位置的item为展开的状态
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private var _opened = -1
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/**
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* 此方法是在Adapter的onBindViewHolder()方法中调用
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*
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* @param holder holder对象
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* @param pos 下标
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*/
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fun bind(holder: VH, pos: Int) {
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if (pos == _opened) openH(holder, holder!!.expandView, false) else closeH(
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holder,
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holder!!.expandView,
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false
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)
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}
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/**
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* 响应ViewHolder的点击事件
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*
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* @param holder holder对象
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* @param imageView 这里我传入了一个ImageView对象，为了处理图片旋转的动画，为了处理内部业务
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*/
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fun toggle(holder: VH, imageView: ImageView) {
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if (_opened == holder!!.position) {
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_opened = -1
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rotateExpandIcon(imageView, 180F, 0F);
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closeH(holder, holder.expandView, true)
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} else {
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val previous = _opened
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_opened = holder.position
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rotateExpandIcon(imageView, 0F, 180F);
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openH(holder, holder.expandView, true)
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val oldHolder =
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(holder.itemView.parent as RecyclerView).findViewHolderForPosition(previous) as VH?
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if (oldHolder != null) closeH(oldHolder, oldHolder.expandView, true)
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}
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}
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}
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}
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@@ -0,0 +1,22 @@
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package com.navinfo.omqs.ui.other.anim
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import android.animation.Animator
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import android.animation.ValueAnimator
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import android.view.View
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object LayoutAnimator {
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fun ofHeight(view: View, start: Int, end: Int): Animator {
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val animator = ValueAnimator.ofInt(start, end)
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animator.addUpdateListener(LayoutHeightUpdateListener(view))
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return animator
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}
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class LayoutHeightUpdateListener(private val _view: View) :
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ValueAnimator.AnimatorUpdateListener {
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override fun onAnimationUpdate(animation: ValueAnimator) {
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val lp = _view.layoutParams
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lp.height = animation.animatedValue as Int
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_view.layoutParams = lp
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}
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}
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}
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@@ -0,0 +1,60 @@
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package com.navinfo.omqs.ui.other.anim
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import android.animation.Animator
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import android.animation.AnimatorListenerAdapter
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import android.view.View
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import android.view.ViewGroup
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import androidx.recyclerview.widget.RecyclerView
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object ViewHolderAnimator {
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fun ofItemViewHeight(holder: RecyclerView.ViewHolder): Animator? {
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val parent = holder.itemView.parent as View
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?: throw IllegalStateException("Cannot animate the layout of a view that has no parent")
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val start = holder.itemView.measuredHeight
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holder.itemView.measure(
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View.MeasureSpec.makeMeasureSpec(
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parent.measuredWidth,
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View.MeasureSpec.AT_MOST
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), View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED)
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)
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val end = holder.itemView.measuredHeight
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val animator = LayoutAnimator.ofHeight(holder.itemView, start, end)
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animator!!.addListener(ViewHolderAnimatorListener(holder))
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animator.addListener(
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LayoutParamsAnimatorListener(
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holder.itemView,
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ViewGroup.LayoutParams.MATCH_PARENT,
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ViewGroup.LayoutParams.WRAP_CONTENT
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)
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)
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return animator
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}
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class ViewHolderAnimatorListener(private val _holder: RecyclerView.ViewHolder) :
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AnimatorListenerAdapter() {
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override fun onAnimationStart(animation: Animator) {
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_holder.setIsRecyclable(false)
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}
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override fun onAnimationEnd(animation: Animator) {
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_holder.setIsRecyclable(true)
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}
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override fun onAnimationCancel(animation: Animator) {
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_holder.setIsRecyclable(true)
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}
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}
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class LayoutParamsAnimatorListener(
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private val _view: View,
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private val _paramsWidth: Int,
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private val _paramsHeight: Int
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) : AnimatorListenerAdapter() {
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override fun onAnimationEnd(animation: Animator) {
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val params = _view.layoutParams
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params.width = _paramsWidth
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params.height = _paramsHeight
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_view.layoutParams = params
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}
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}
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}
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