CODEWITHSUNDEEP
androidandroid-tablayout
Sarah
Sarah

Reputation: 1235

TabLayout Indicator customization

i have been searching how to change the indicator in Tablayout to be circular, like this enter image description here

but i don't know how to do so, any help!

Upvotes: 5

Views: 8916

Answers (3)

Mina Wissa
Mina Wissa

Reputation: 10971

From the source code, the tab indicator is defined as:

<style name="Base.Widget.Design.TabLayout" parent="android:Widget">
        <item name="tabMaxWidth">@dimen/design_tab_max_width</item>
        <item name="tabIndicatorColor">?attr/colorAccent</item>
        <item name="tabIndicatorHeight">2dp</item>
        <item name="tabPaddingStart">12dp</item>
        <item name="tabPaddingEnd">12dp</item>
        <item name="tabBackground">?attr/selectableItemBackground</item>
        <item name="tabTextAppearance">@style/TextAppearance.Design.Tab</item>
        <item name="tabSelectedTextColor">?android:textColorPrimary</item>
    </style>

and the tabIndicatorColor attribute is defined as:

<declare-styleable name="TabLayout">
        <attr name="tabIndicatorColor" format="color"/>
        <attr name="tabIndicatorHeight" format="dimension"/>

so I believe you can't change it to a drawable (shape), you can only change its color.

An alternative is to define a custom view for the tabs and handle the indicator state yourself

Upvotes: 2

Yrgl
Yrgl

Reputation: 653

I think you should use custom view for tabs and change it with your TabLayout.OnTabSelectedListener

Upvotes: 0

Mateus Gondim
Mateus Gondim

Reputation: 5542

1) Create layouts for your tab states(Ex: tab_selected.xml and tab_unselected.xml)

2) Set a custom view for your tabs using your layouts:

//get your tab item
TabLayout.Tab tabItem = tabLayout.getTabAt(i);
//inflate your layout to a view and set it as the tab's custom view
tabItem.setCustomView(customView);

3) Then, using setOnTabSelectedListener, keep listening to which tab is selected and update its custom view accordingly(using setCustomView)

Upvotes: 0

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