TabLayout使用以及自定义tab标签

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:app="http://schemas.android.com/apk/res-auto"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"><com.google.android.material.tabs.TabLayoutandroid:id="@+id/tab"android:layout_width="match_parent"android:layout_height="wrap_content"app:layout_constraintStart_toStartOf="parent"app:layout_constraintTop_toTopOf="parent"app:tabTextAppearance="@style/myTab"style="@style/myTabLayout"tools:ignore="SpeakableTextPresentCheck" /><androidx.viewpager2.widget.ViewPager2android:id="@+id/vp"android:layout_width="match_parent"android:layout_height="wrap_content"app:layout_constraintStart_toStartOf="parent"app:layout_constraintTop_toBottomOf="@+id/tab" /></androidx.constraintlayout.widget.ConstraintLayout>

package com.example.myapplicationimport android.os.Bundle
import android.view.View
import android.widget.TextView
import androidx.appcompat.app.AppCompatActivity
import androidx.fragment.app.Fragment
import androidx.fragment.app.FragmentManager
import androidx.lifecycle.Lifecycle
import androidx.recyclerview.widget.RecyclerView
import androidx.viewpager2.adapter.FragmentStateAdapter
import com.example.myapplication.databinding.TestVp2Binding
import com.google.android.material.tabs.TabLayoutMediatorclass VP2Demo : AppCompatActivity() {override fun onCreate(savedInstanceState: Bundle?) {super.onCreate(savedInstanceState)val inflate = TestVp2Binding.inflate(layoutInflater)setContentView(inflate.root)val mutableListOf = mutableListOf<Fragment>()val fragment = Fragment(R.layout.test_a)val fragment2 = Fragment(R.layout.test_view)val fragment3 = Fragment(R.layout.test_net)val childAt = inflate.vp.getChildAt(0)(childAt as? RecyclerView)?.setOverScrollMode(View.OVER_SCROLL_NEVER)mutableListOf.add(fragment)mutableListOf.add(fragment2)mutableListOf.add(fragment3)inflate.vp.adapter = MyVpAdapter(mutableListOf, supportFragmentManager, lifecycle)val titles = mutableListOf<String>()titles.add("新闻")titles.add("新闻2")titles.add("新闻3")TabLayoutMediator(inflate.tab, inflate.vp) { p0, index ->run {p0.setText(titles[index])p0.setIcon(R.drawable.zc)if(index==1){val textView = TextView(baseContext)textView.text = "我是自定义的标签哈哈~~~"p0.setCustomView(textView)}}}.attach()}class MyVpAdapter(list: MutableList<Fragment>, fm: FragmentManager, lf: Lifecycle) :FragmentStateAdapter(fm, lf) {private var listS = emptyList<Fragment>()init {listS = list}override fun getItemCount(): Int {return listS.size}override fun createFragment(position: Int): Fragment {return listS[position]}}}

  <style name="myTab" parent="@android:style/TextAppearance.Widget.TabWidget"><item name="textAllCaps">false</item><item name="android:textSize">30sp</item></style><style name="myTabLayout" parent="Widget.Design.TabLayout"><item name="tabIndicatorColor">#00FF00</item><item name="tabSelectedTextColor">#FF0000</item><item name="tabTextColor">#0000FF</item><item name="tabRippleColor">@color/yellow</item></style>