How to show a circle tab indicator along Viewpager?

user_4387357 0
Viewed 6472

I want to show a tabindicator as in the image below.

tabIndicator

I am using viewpager. I already tried TabLayout with viewpager, in which we can only adjust tab indicator color and height. How can I implement this.

android-tabs android-tablayout android-layout android
3 Answers

Keep it simple and just use one XML file.

tab_indicator_circle.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="4dp"
    android:useLevel="false">

    <size
        android:width="4dp"
        android:height="4dp" />

    <solid android:color="@color/colorAccent" />
</shape>

Usage:

<com.google.android.material.tabs.TabLayout
    android:id="@+id/myTabLayout"
    android:layout_width="0dp"
    android:layout_height="wrap_content"
    app:tabIndicator="@drawable/tab_indicator_circle"
    app:layout_constraintLeft_toLeftOf="parent"
    app:layout_constraintRight_toRightOf="parent"
    app:layout_constraintTop_toTopOf="parent"
    app:tabIndicatorHeight="10dp"
    app:tabGravity="center" />

Note that I'm using TabLayout from
implementation "com.google.android.material:material:1.1.0-alpha10"

user_11599300

Here's how I achieved it

tab_indicator.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item
            android:width="8dp"
            android:height="8dp"
            android:bottom="16dp"
            android:end="8dp"
            android:gravity="center"
            android:start="8dp"
            android:top="8dp">
        
        <shape android:shape="rectangle">
            <size android:width="8dp" android:height="8dp" />
            <corners android:radius="4dp" />
            <solid android:color="?attr/colorAccent" />
        </shape>
    </item>
</layer-list>

Important thing is to have fixed width and height.

Usage:

<com.google.android.material.tabs.TabLayout
                android:id="@+id/tab_layout"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                app:tabIndicatorHeight="8dp"
                app:tabIndicator="@drawable/tab_indicator" />
user_16279520
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