Cannot lower case button text in android studio
You could add android:textAllCaps="false"
to the button.
The button text might be transformed to uppercase by your app's theme that applies to all buttons. Check themes / styles files for setting the attribute android:textAllCaps
.
<style name="AppTheme" parent="AppBaseTheme">
<item name="android:buttonStyle">@style/Button</item>
</style>
<style name="Button" parent="Widget.AppCompat.Button">
<item name="android:textAllCaps">false</item>
</style>