TabLayout 自定义

实现效果

一、依赖配置

dependencies {
       api("com.google.android.material:material:1.11.0")
}

二、使用

<com.google.android.material.tabs.TabLayout
    android:id="@+id/tabLayout"
    android:layout_width="match_parent"
    android:layout_height="32dp"
    app:tabBackground="@null"                               // 去除点击时水波纹效果
    app:tabIndicator="@drawable/layer_tab_indicator"        // 自定义指示器
    app:tabIndicatorColor="@color/colorAccent"
    app:tabMode="scrollable"                                // 设置Tab可滚动
    app:tabRippleColor="@null" />                           // 去除点击时水波纹效果

layer_tab_indicator.xml

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:gravity="center">
        <shape>
            <size
                android:width="16dp"
                android:height="3dp" />
            <solid android:color="@color/colorAccent" />
            <corners android:radius="9dp" />
        </shape>
    </item>
</layer-list>

代码

mTabTitles.forEach {
    val tabView = LayoutInflater.from(mActivity).inflate(R.layout.item_order_tab, null)
    tabView.findViewById<TextView>(R.id.tv_tab).text = it
    mTabLayout?.addTab(mTabLayout!!.newTab().setCustomView(tabView))
}
mTabLayout?.addOnTabSelectedListener(object : TabLayout.OnTabSelectedListener {
    override fun onTabSelected(tab: TabLayout.Tab?) {
        // Others
        tab?.view?.findViewById<TextView>(R.id.tv_tab)?.setTextColor(Color.BLACK)
    }

    override fun onTabUnselected(tab: TabLayout.Tab?) {
        tab?.view?.findViewById<TextView>(R.id.tv_tab)
                    ?.setTextColor(resources.getColor(R.color.color9A9A9A, null))
    }

    override fun onTabReselected(tab: TabLayout.Tab?) {}
})

item_order_tab.xml

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="wrap_content"
    android:layout_height="32dp">

    <TextView
        android:id="@+id/tv_tab"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:gravity="center"
        android:textSize="14sp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>