package com.lzf.easyfloat.utils
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import android.view.*
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import com.lzf.easyfloat.EasyFloat
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import com.lzf.easyfloat.R
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import com.lzf.easyfloat.anim.DefaultAnimator
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import com.lzf.easyfloat.enums.ShowPattern
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import com.lzf.easyfloat.enums.SidePattern
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import com.lzf.easyfloat.interfaces.OnFloatAnimator
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import com.lzf.easyfloat.interfaces.OnTouchRangeListener
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import com.lzf.easyfloat.widget.BaseSwitchView
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/**
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* @author: liuzhenfeng
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* @date: 2020/10/24 21:29
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* @Package: com.lzf.easyfloat.utils
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* @Description: 拖拽打开、关闭浮窗
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*/
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object DragUtils {
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private const val ADD_TAG = "ADD_TAG"
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private const val CLOSE_TAG = "CLOSE_TAG"
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private var addView: BaseSwitchView? = null
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private var closeView: BaseSwitchView? = null
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private var downX = 0f
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private var screenWidth = 0
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private var offset = 0f
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/**
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* 注册侧滑创建浮窗
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* @param event Activity 的触摸事件
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* @param listener 右下角区域触摸事件回调
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* @param layoutId 右下角区域的布局文件
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* @param slideOffset 当前屏幕侧滑进度
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* @param start 动画开始阈值
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* @param end 动画结束阈值
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*/
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@JvmOverloads
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fun registerSwipeAdd(
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event: MotionEvent?,
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listener: OnTouchRangeListener? = null,
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layoutId: Int = R.layout.default_add_layout,
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slideOffset: Float = -1f,
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start: Float = 0.1f,
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end: Float = 0.5f
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) {
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if (event == null) return
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// 设置了侧滑监听，使用侧滑数据
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if (slideOffset != -1f) {
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// 如果滑动偏移，超过了动画起始位置，开始显示浮窗，并执行偏移动画
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if (slideOffset >= start) {
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val progress = minOf((slideOffset - start) / (end - start), 1f)
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setAddView(event, progress, listener, layoutId)
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} else dismissAdd()
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} else {
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// 未提供侧滑监听，根据手指坐标信息，判断浮窗信息
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screenWidth = DisplayUtils.getScreenWidth(LifecycleUtils.application)
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offset = event.rawX / screenWidth
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when (event.action) {
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MotionEvent.ACTION_DOWN -> downX = event.rawX
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MotionEvent.ACTION_MOVE -> {
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// 起始值小于最小边界值，并且当前偏离量大于最小边界
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if (downX < start * screenWidth && offset >= start) {
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val progress = minOf((offset - start) / (end - start), 1f)
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setAddView(event, progress, listener, layoutId)
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} else dismissAdd()
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}
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MotionEvent.ACTION_UP, MotionEvent.ACTION_CANCEL -> {
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downX = 0f
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setAddView(event, offset, listener, layoutId)
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}
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}
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}
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}
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private fun setAddView(
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event: MotionEvent,
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progress: Float,
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listener: OnTouchRangeListener? = null,
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layoutId: Int
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) {
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// 设置触摸状态监听
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addView?.let {
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it.setTouchRangeListener(event, listener)
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it.translationX = it.width * (1 - progress)
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it.translationY = it.width * (1 - progress)
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}
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// 手指抬起或者事件取消，关闭添加浮窗
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if (event.action == MotionEvent.ACTION_UP || event.action == MotionEvent.ACTION_CANCEL) dismissAdd()
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else showAdd(layoutId)
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}
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private fun showAdd(layoutId: Int) {
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if (EasyFloat.isShow(ADD_TAG)) return
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EasyFloat.with(LifecycleUtils.application)
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.setLayout(layoutId)
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.setShowPattern(ShowPattern.CURRENT_ACTIVITY)
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.setTag(ADD_TAG)
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.setDragEnable(false)
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.setSidePattern(SidePattern.BOTTOM)
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.setGravity(Gravity.BOTTOM or Gravity.END)
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.setAnimator(null)
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.registerCallback {
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createResult { isCreated, _, view ->
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if (!isCreated || view == null) return@createResult
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if ((view as ViewGroup).childCount > 0) {
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// 获取区间判断布局
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view.getChildAt(0).apply {
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if (this is BaseSwitchView) {
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addView = this
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translationX = width.toFloat()
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translationY = width.toFloat()
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}
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}
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}
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}
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dismiss { addView = null }
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}
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.show()
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}
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/**
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* 注册侧滑关闭浮窗
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* @param event 浮窗的触摸事件
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* @param listener 关闭区域触摸事件回调
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* @param layoutId 关闭区域的布局文件
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* @param showPattern 关闭区域的浮窗类型
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* @param appFloatAnimator 关闭区域的浮窗出入动画
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*/
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@JvmOverloads
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fun registerDragClose(
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event: MotionEvent,
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listener: OnTouchRangeListener? = null,
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layoutId: Int = R.layout.default_close_layout,
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showPattern: ShowPattern = ShowPattern.CURRENT_ACTIVITY,
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appFloatAnimator: OnFloatAnimator? = DefaultAnimator()
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) {
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showClose(layoutId, showPattern, appFloatAnimator)
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// 设置触摸状态监听
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closeView?.setTouchRangeListener(event, listener)
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// 抬起手指时，关闭删除选项
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if (event.action == MotionEvent.ACTION_UP || event.action == MotionEvent.ACTION_CANCEL) dismissClose()
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}
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private fun showClose(
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layoutId: Int,
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showPattern: ShowPattern,
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appFloatAnimator: OnFloatAnimator?
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) {
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if (EasyFloat.isShow(CLOSE_TAG)) return
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EasyFloat.with(LifecycleUtils.application)
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.setLayout(layoutId)
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.setShowPattern(showPattern)
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.setMatchParent(widthMatch = true)
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.setTag(CLOSE_TAG)
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.setSidePattern(SidePattern.BOTTOM)
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.setGravity(Gravity.BOTTOM)
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.setAnimator(appFloatAnimator)
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.registerCallback {
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createResult { isCreated, _, view ->
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if (!isCreated || view == null) return@createResult
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if ((view as ViewGroup).childCount > 0) {
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// 获取区间判断布局
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view.getChildAt(0).apply { if (this is BaseSwitchView) closeView = this }
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}
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}
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dismiss { closeView = null }
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}
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.show()
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}
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private fun dismissAdd() = EasyFloat.dismiss(ADD_TAG)
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private fun dismissClose() = EasyFloat.dismiss(CLOSE_TAG)
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}
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