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@Dmuasya
Created December 7, 2020 05:01
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package com.dennis.doublepull
import android.graphics.drawable.AnimationDrawable
import android.os.Bundle
import android.view.View
import android.view.ViewTreeObserver
import android.widget.RelativeLayout
import androidx.appcompat.app.AppCompatActivity
import androidx.recyclerview.widget.LinearLayoutManager
import androidx.recyclerview.widget.RecyclerView
import com.dennis.doublepull.adapter.ScrollAdapter
import kotlinx.android.synthetic.main.main_in.*
import kotlinx.android.synthetic.main.main_out.*
import dennis.pull.ScrollState
import dennis.pull.listener.OnScrollChangedListener
import dennis.pull.listener.OnStateChangeListener
class MainActivity : AppCompatActivity(), OnStateChangeListener,
View.OnClickListener, OnScrollChangedListener {
private var mHeaderHeight: Int = 0
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_main)
initData()
initListener()
}
private fun initData() {
main_rcv.layoutManager = LinearLayoutManager(this)
main_rcv.adapter = ScrollAdapter()
}
private fun initListener() {
main_body.setOnStateChangeListener(this)
main_root.setOnScrollChangedListener(this)
main_open_iv.setOnClickListener(this)
main_rcv.addOnScrollListener(object : RecyclerView.OnScrollListener() {
override fun onScrolled(recyclerView: RecyclerView, dx: Int, dy: Int) {
super.onScrolled(recyclerView, dx, dy)
if (main_body.state === ScrollState.HIDE) {
main_root.scrollBy(dx, dy)
}
}
})
main_body.viewTreeObserver.addOnGlobalLayoutListener(object : ViewTreeObserver.OnGlobalLayoutListener {
override fun onGlobalLayout() {
mHeaderHeight = main_header.measuredHeight
val iconHeight = main_haibao.measuredHeight
val pullRelMarTop = mHeaderHeight - iconHeight / 2
setPullRelativeLayoutMarTop(pullRelMarTop)
setContentViewMarTop(iconHeight / 2)
main_body.setMaxOffset(iconHeight / 2)
initOpenAnim()
main_body.viewTreeObserver.removeGlobalOnLayoutListener(this)
}
})
}
private fun initOpenAnim() {
main_header.isScrollShow = true
main_body.hide(100)
main_body.open()
main_header.scrollShow()
val animationDrawable = main_open_iv.drawable as AnimationDrawable
animationDrawable.start()
}
private fun setPullRelativeLayoutMarTop(top: Int) {
val mPullLayoutParams = main_body.layoutParams as RelativeLayout.LayoutParams
mPullLayoutParams.setMargins(0, top, 0, 0)
}
private fun setContentViewMarTop(top: Int) {
val mContentViewParams = main_content.layoutParams as RelativeLayout.LayoutParams
mContentViewParams.setMargins(0, top, 0, 0)
}
override fun pullViewShow(state: ScrollState) {
main_root.setPullRelativeLayoutState(state)
main_info.visibility = View.VISIBLE
}
override fun pullViewHide(state: ScrollState) {
main_root.setPullRelativeLayoutState(state)
main_header.visibility = View.INVISIBLE
}
override fun pullViewMove(state: ScrollState, offset: Int) {
main_root.setPullRelativeLayoutState(state)
main_info.visibility = View.INVISIBLE
}
override fun pullViewOpenStart() {
if (main_header.isScrollShow) {
main_root.scrollTo(0, 0)
}
main_header.visibility = View.VISIBLE
main_info.visibility = View.VISIBLE
main_header_mask.visibility = View.INVISIBLE
}
override fun pullViewOpenFinish() {
main_header_mask.visibility = View.VISIBLE
val manager = main_rcv.layoutManager as LinearLayoutManager?
manager!!.scrollToPosition(0)
}
override fun onClick(v: View) {
if (v.id == R.id.main_open_iv) {
openOutUi()
}
}
private fun openOutUi() {
main_body.open()
main_header.scrollShow()
}
override fun onBackPressed() {
if (main_body.state === ScrollState.HIDE) {
openOutUi()
} else {
super.onBackPressed()
android.os.Process.killProcess(android.os.Process.myPid())
}
}
override fun onScrollChange(v: View, scrollX: Int, scrollY: Int, oldScrollX: Int, oldScrollY: Int) {
val offset = (mHeaderHeight * 0.7).toInt()
if (scrollY > offset && main_body.state === ScrollState.HIDE) {
main_header.isScrollShow = true
}
}
}
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