package cn.flightfeather.thirdappmodule.view
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import android.annotation.SuppressLint
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import android.content.Context
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import android.graphics.Color
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import android.support.v4.content.ContextCompat
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import android.support.v4.view.ViewPager
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import android.util.AttributeSet
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import android.view.Gravity
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import android.view.View
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import android.view.ViewGroup
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import android.widget.LinearLayout
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import android.widget.RelativeLayout
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import android.widget.TextView
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import cn.flightfeather.thirdappmodule.R
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import cn.flightfeather.thirdappmodule.util.dp
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import io.reactivex.Observable
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import io.reactivex.android.schedulers.AndroidSchedulers
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import io.reactivex.schedulers.Schedulers
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import org.jetbrains.anko.alignParentBottom
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import org.jetbrains.anko.alignParentEnd
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import org.jetbrains.anko.backgroundResource
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/**
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* @author riku
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* Date: 2019/5/20
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* 轮播ViewPager
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*/
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class BannerView : RelativeLayout {
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constructor(context: Context) : super(context){
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mContext = context
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}
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constructor(context: Context, attrs: AttributeSet?) : super(context, attrs){
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mContext = context
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}
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constructor(context: Context, attrs: AttributeSet?, defStyleAttr: Int) : super(context, attrs, defStyleAttr){
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mContext = context
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}
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private var mContext: Context? = null
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private val viewPager = MyViewPager(context)
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private val dots = LinearLayout(context)
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private val index = LinearLayout(context)
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private var currentIndex: TextView? = null
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private var curPos = 0
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private var lastPos = 0
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var isAlive = true
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set(value) {
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field = value
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if (value) initObservable()
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}
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var dataList = listOf<View>()
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set(value) {
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field = value
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initViewPager()
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initDots()
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initIndex()
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// initObservable()
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}
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fun refresh() {
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viewPager.adapter?.notifyDataSetChanged()
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}
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private fun initObservable() {
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Observable.create<Boolean> {
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while (isAlive) {
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Thread.sleep(3000)
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it.onNext(true)
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}
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it.onComplete()
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}.subscribeOn(Schedulers.io()).observeOn(AndroidSchedulers.mainThread()).doOnNext {
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if (curPos == dataList.size - 1) {
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curPos = 0
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viewPager.setCurrentItem(0, false)
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} else {
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curPos++
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viewPager.setCurrentItem(curPos, true)
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}
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}.subscribe()
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}
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private fun initViewPager(){
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val viewPagerParams = LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT)
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viewPager.adapter = ViewPagerAdapter(dataList)
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viewPager.currentItem = 0
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viewPager.addOnPageChangeListener(object : ViewPager.OnPageChangeListener {
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override fun onPageScrollStateChanged(p0: Int) {
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}
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override fun onPageScrolled(p0: Int, p1: Float, p2: Int) {
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}
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@SuppressLint("SetTextI18n")
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override fun onPageSelected(p0: Int) {
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val newPos = p0 % dataList.size
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dots.getChildAt(lastPos).isEnabled = false
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dots.getChildAt(newPos).isEnabled = true
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lastPos = newPos
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(index.getChildAt(0) as TextView).text = "${p0 + 1}"
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}
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})
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addView(viewPager, viewPagerParams)
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}
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private fun initDots() {
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val dotsParams = LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)
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dotsParams.alignParentBottom()
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dots.apply {
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setPadding(4.dp, 4.dp, 4.dp, 4.dp)
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orientation = LinearLayout.HORIZONTAL
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gravity = Gravity.CENTER
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}.layoutParams = dotsParams
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repeat(dataList.size) {
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val dot = View(context)
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dot.backgroundResource = R.drawable.point_background
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val params = LinearLayout.LayoutParams(8.dp, 8.dp)
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params.leftMargin = 4.dp
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dot.layoutParams = params
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dot.isEnabled = false
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dots.addView(dot)
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}
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if (dataList.isNotEmpty()) {
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dots.getChildAt(0).isEnabled = true
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}
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addView(dots)
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}
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private fun initIndex() {
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val indexParams = LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT)
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indexParams.alignParentBottom()
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indexParams.alignParentEnd()
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index.apply {
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setPadding(4.dp, 4.dp, 4.dp, 4.dp)
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setBackgroundColor(ContextCompat.getColor(context, R.color.gray))
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orientation = LinearLayout.HORIZONTAL
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gravity = Gravity.CENTER
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}.layoutParams = indexParams
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val textParams = LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT)
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currentIndex = TextView(context).apply {
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text = "1"
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setTextColor(Color.WHITE)
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}
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val divider = TextView(context).apply {
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text = "/"
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setTextColor(Color.WHITE)
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}
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val totalIndex = TextView(context).apply {
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text = dataList.size.toString()
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setTextColor(Color.WHITE)
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}
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index.addView(currentIndex, textParams)
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index.addView(divider, textParams)
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index.addView(totalIndex, textParams)
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addView(index)
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}
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}
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