how to draw a white dot in android studio-CodePudding

I was trying to use white dot as tab icon in tablayout in android studio.

I have use a example from online to define the dot:

ic_tab_default.xml:

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:innerRadius="0dp"
    android:shape="ring"
    android:thickness="24dp"
    android:useLevel="false">
    <solid android:color="@android:color/white"/>

</shape>

And I add it in my tablayout to preview it mainactivity.xml:

    <com.google.android.material.tabs.TabLayout
        android:id="@ id/mainTablayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="@color/black"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:tabGravity="center"
        app:tabIconTint="@color/white"
        tools:ignore="SpeakableTextPresentCheck">

        <com.google.android.material.tabs.TabItem
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:icon="@drawable/tab_selected" />

        <com.google.android.material.tabs.TabItem
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:icon="@drawable/tab_default" />
    </com.google.android.material.tabs.TabLayout>

        <androidx.viewpager2.widget.ViewPager2
            android:id="@ id/mainViewPager"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            app:layout_constraintStart_toStartOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            app:layout_constraintBottom_toBottomOf="parent"
            app:layout_constraintTop_toBottomOf="@id/mainTablayout" />

however, it became a square after I add it, how can I make it to a dot?

CodePudding user response：

Perhaps this would work

<vector xmlns:android="http://schemas.android.com/apk/res/android"
    android:width="10dp"
    android:height="10dp"
    android:tint="#ffffff"
    android:viewportWidth="24"
    android:viewportHeight="24">
    <path
        android:fillColor="#ffffff"
        android:pathData="M12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM10,9z" />
</vector>

CodePudding user response：

tab_default.xml

<?xml version="1.0" encoding="utf-8"?>
<shape android:shape="oval"
    xmlns:android="http://schemas.android.com/apk/res/android">
    <solid android:color="#FFFFFF"/>
</shape>