package com.dayu.general.activity
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import android.os.Bundle
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import android.view.LayoutInflater
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import androidx.core.content.ContextCompat
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import androidx.fragment.app.Fragment
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import com.dayu.general.R
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import com.dayu.general.adapter.TabAdapter
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import com.dayu.general.databinding.ActivityMainBinding
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class MainActivity : BaseActivity() {
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var binding: ActivityMainBinding? = null
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private val fragments: ArrayList<Fragment> = ArrayList()
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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binding = ActivityMainBinding.inflate(LayoutInflater.from(this))
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setContentView(binding?.root)
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setupFragments()
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initView()
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initTab()
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}
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private fun initView() {
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binding!!.BSCardLL.setOnClickListener { v -> changeBottomState(Tab.BSC) }
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binding!!.rechargeLL.setOnClickListener { v -> changeBottomState(Tab.RECHARGE) }
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binding!!.myLL.setOnClickListener { v -> changeBottomState(Tab.MY) }
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}
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private fun setupFragments() {
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fragments.add(BSCardFragment())
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fragments.add(RechargeFragment())
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fragments.add(MyFragment())
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}
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private fun initTab() {
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binding?.viewPager?.adapter = TabAdapter(this, fragments)
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binding?.viewPager?.currentItem = (1)
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binding?.viewPager?.offscreenPageLimit = 3
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binding?.viewPager?.isUserInputEnabled = false
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}
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private enum class Tab {
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BSC, RECHARGE, MY
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}
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/**
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* 修改底部状态
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*/
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private fun changeBottomState(tab: Tab) {
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resetTabState()
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when (tab) {
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Tab.BSC -> updateTabUI(0, R.drawable.bottom_card_white, R.color.white)
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Tab.RECHARGE -> updateTabUI(1, R.drawable.bottom_recharge_white, R.color.white)
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Tab.MY -> updateTabUI(2, R.drawable.bottom_my_white, R.color.white)
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}
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}
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/**
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* 重置所有 Tab 的默认状态
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*/
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private fun resetTabState() {
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binding!!.BSCardImg.setImageDrawable(
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ContextCompat.getDrawable(
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this,
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R.drawable.bottom_card_black
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)
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)
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binding!!.BSCardText.setTextColor(ContextCompat.getColor(this, R.color.black))
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binding!!.rechargeImg.setImageDrawable(
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ContextCompat.getDrawable(
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this,
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R.drawable.bottom_recharge_black
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)
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)
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binding!!.rechargeText.setTextColor(ContextCompat.getColor(this, R.color.black))
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binding!!.myImg.setImageDrawable(
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ContextCompat.getDrawable(
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this,
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R.drawable.bottom_my_black
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)
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)
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binding!!.myText.setTextColor(ContextCompat.getColor(this, R.color.black))
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}
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/**
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* 更新某个 Tab 的 UI 状态
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*/
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private fun updateTabUI(position: Int, iconResId: Int, textColorResId: Int) {
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if (position == 1) {
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binding!!.viewPager.setCurrentItem(position, true)
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} else {
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binding!!.viewPager.setCurrentItem(position, false)
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}
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when (position) {
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0 -> {
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binding!!.BSCardImg.setImageDrawable(ContextCompat.getDrawable(this, iconResId))
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binding!!.BSCardText.setTextColor(ContextCompat.getColor(this, textColorResId))
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}
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1 -> {
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binding!!.rechargeImg.setImageDrawable(ContextCompat.getDrawable(this, iconResId))
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binding!!.rechargeText.setTextColor(ContextCompat.getColor(this, textColorResId))
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}
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2 -> {
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binding!!.myImg.setImageDrawable(ContextCompat.getDrawable(this, iconResId))
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binding!!.myText.setTextColor(ContextCompat.getColor(this, textColorResId))
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}
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}
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}
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}
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