[android] Cannot lower case button text in android studio

I have a trivial question that has been bothering me for a while. I tried to google this but no one seems to have the same problem as me or doesn't see it as an issue. When I make a button in activity_my.xml under layout

 <Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/button_1_name"
    android:id="@+id/button2"
    android:layout_marginTop="140dp"
    android:layout_below="@+id/textView"
    android:layout_centerHorizontal="true" />

I get a button that looks like

even though my strings code is:

<resources>

<string name="app_name">HelloWorld</string>
<string name="hello_world">Hello world!</string>
<string name="action_settings">Settings</string>
<string name="button_1_name">BuTtOn 1</string>

I know I am definitely missing something small here, but how do I get lower case/upper case working in the button text?

Thanks!

This is fixable in the application code by setting the button's TransformationMethod null, e.g.

mButton.setTransformationMethod(null);

add android:textAllCaps="false" in xml button It's true with this issue.

I have faced this issue in TextView. I have tried

android:textAllCaps="false", 
mbutton.setAllCaps(false);   
<item name="android:textAllCaps">false</item> 

none of that worked for me. Finally I fed up and I have hard coded text, it is working.

tv.setText("Mytext");

tv is object of TextView. But as per coding standards, it is bad practice.

In your .xml file within Button add this line--

android:textAllCaps="false"

<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>

in XML: android:textAllCaps="false"

Programmatically:

mbutton.setAllCaps(false);

There is a property in <Button> that is android:textAllCaps="false" that make characters in which you want in your own Small and caps. By Default its became True so write this code and make textAllCaps=false then you can write text on button in small and Caps letter as per your requirement. Complete code for a Button which allow use to write letters as per our requirement.

 <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/btnLogin"
            android:text="Login for Chat"
            android:textAllCaps="false"/>

there are 3 ways to do it.

1.Add the following line on style.xml to change entire application

<item name="android:textAllCaps">false</item>

2.Use

android:textAllCaps="false"

in your layout-v21

mButton.setTransformationMethod(null);

3. add this line under the element(button or edit text) in xml

android:textAllCaps="false"

regards

You could set like this

button.setAllCaps(false);

programmatically

in XML Code
add this line android:textAllCaps="false" like bellow code

 <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/button_1_name"
        android:id="@+id/button2"
        android:layout_marginTop="140dp"
        android:layout_below="@+id/textView"
        android:layout_centerHorizontal="true"
       ** android:textAllCaps="false" ** />

or

in Java code (programmatically)
add this line to your button setAllCaps(false)

Button btn = (Button) findViewById(R.id.button2);
btn.setAllCaps(false);