效果图

主要代码

1. 主界面

• MainActivity.kt

class MainActivity : AppCompatActivity() {

    private val pageTitles = arrayOf("Page 1", "Page 2", "Page 3", "Page 4", "Page 5")

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        viewPager.adapter = object : PagerAdapter() {
            override fun instantiateItem(container: ViewGroup, position: Int): Any {
                val inflater = LayoutInflater.from(this@MainActivity)
                val rootView = inflater.inflate(R.layout.view_page, container, false) as ViewGroup
                val textView = rootView.findViewById<TextView>(R.id.textView)
                textView.text = getPageTitle(position)
                container.addView(rootView)
                return rootView
            }

            override fun getItemPosition(obj: Any): Int {
                return POSITION_NONE
            }

            override fun destroyItem(container: ViewGroup, position: Int, obj: Any) {
                container.removeView(obj as View)
            }

            override fun getPageTitle(position: Int): CharSequence? {
                return pageTitles[position]
            }

            override fun getCount(): Int {
                return pageTitles.size
            }

            override fun isViewFromObject(view: View, obj: Any): Boolean {
                return view === obj
            }
        }
    }
}

• 布局文件:activity_main.xml

<androidx.viewpager.widget.ViewPager xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/viewPager"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <com.google.android.material.tabs.TabLayout
        android:id="@+id/tabLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:tabBackground="@android:color/white"
        app:tabIndicatorColor="@android:color/holo_red_light"
        app:tabIndicatorHeight="2dp"
        app:tabMode="scrollable"
        app:tabSelectedTextColor="@android:color/holo_red_light"
        app:tabTextColor="@android:color/darker_gray" />

</androidx.viewpager.widget.ViewPager>