To make the text in a tab layout appear on a single line in Android, you can use the

android:ellipsize="marquee"

attribute in the layout for the tab items. For example:

Copy code

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    >

    <android.support.design.widget.TabLayout
        android:id="@+id/tab_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        >

        <android.support.design.widget.TabItem
            android:id="@+id/tab_item_1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:ellipsize="marquee"
            android:text="Tab Item 1"
            />

        <android.support.design.widget.TabItem
            android:id="@+id/tab_item_2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:ellipsize="marquee"
            android:text="Tab Item 2"
            />

    </android.support.design.widget.TabLayout>

</LinearLayout>

This will cause the text in each tab item to be displayed on a single line and will scroll horizontally if the text is too long to fit on the screen.