I have added android:textAllCaps="false", but all letter are still capitalization, why?

Question

The following code is created by Android Studio 3.2.1 Tabbed Activity wizard, all tab text are capitalization.

I hope only first letter is capitalization for tab text, so I add android:textAllCaps="false" to layout xml file.

But I find that all tab text are still capitalization, how can I fix it?

Code

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
                                                 xmlns:tools="http://schemas.android.com/tools"
                                                 xmlns:app="http://schemas.android.com/apk/res-auto"
                                                 android:id="@+id/main_content"
                                                 android:layout_width="match_parent"
                                                 android:layout_height="match_parent"
                                                 android:fitsSystemWindows="true"
                                                 tools:context=".MainActivity">

    <android.support.design.widget.AppBarLayout
            android:id="@+id/appbar"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:paddingTop="@dimen/appbar_padding_top"
            android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar
                android:id="@+id/toolbar"
                app:title="@string/app_name"
                android:layout_width="match_parent"
                android:layout_height="?attr/actionBarSize"
                android:layout_weight="1"
                android:background="?attr/colorPrimary"
                app:popupTheme="@style/AppTheme.PopupOverlay"
                app:layout_scrollFlags="scroll|enterAlways">

        </android.support.v7.widget.Toolbar>

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

            <android.support.design.widget.TabItem
                    android:id="@+id/tabItem"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:textAllCaps="false"
                    android:text="@string/tab_text_1"/>

            <android.support.design.widget.TabItem
                    android:id="@+id/tabItem2"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="@string/tab_text_2"/>

            <android.support.design.widget.TabItem
                    android:id="@+id/tabItem3"
                    android:layout_width="wrap_content"
                    android:layout_height="wrap_content"
                    android:text="@string/tab_text_3"/>

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

    <android.support.v4.view.ViewPager
            android:id="@+id/container"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            app:layout_behavior="@string/appbar_scrolling_view_behavior"/>

    <android.support.design.widget.FloatingActionButton
            android:id="@+id/fab"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="end|bottom"
            android:layout_margin="@dimen/fab_margin"
            app:srcCompat="@android:drawable/ic_dialog_email"/>

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

Style

<resources>

    <!-- Base application theme. -->
    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>
    <style name="AppTheme.NoActionBar">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
    </style>
    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar"/>
    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light"/>

</resources>

Image

Is this the same problem？ [android:textAllCaps=“false” not working for TabLayout design Support](https://stackoverflow.com/questions/31295116/androidtextallcaps-false-not-working-for-tablayout-design-support) — 余生皆假期, Dec 04 '18 at 03:51

score 1 · Accepted Answer · answered Dec 04 '18 at 03:54

add this line in tablayout

app:tabTextAppearance="@android:style/TextAppearance.Widget.TabWidget"

like below

 <android.support.design.widget.AppBarLayout
        android:id="@+id/appbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:tabTextAppearance="@android:style/TextAppearance.Widget.TabWidget"
        android:paddingTop="@dimen/appbar_padding_top"
        android:theme="@style/AppTheme.AppBarOverlay">

I have added android:textAllCaps="false", but all letter are still capitalization, why?

1 Answers1