How can set the EditText line height?

Question

In my application I am using EditText. As we know that in new versions EditText does not have a border and it just displays a bottom line.

Now I want to set the height/thickness of the bottom line as 1dp.

Answer 1

Just use the standard TextInputLayout with a Filled Box style: Widget.MaterialComponents.TextInputLayout.FilledBox.

Something like:

<com.google.android.material.textfield.TextInputLayout
    style="@style/Widget.MaterialComponents.TextInputLayout.FilledBox"
    ...>

    <com.google.android.material.textfield.TextInputEditText
        .../>

</com.google.android.material.textfield.TextInputLayout>

It is the result:

The default value of the underline stroke in a filled box when it is not focused is 1dp.

If you would like to customize the width you can use these attribute in the layout:

app:boxStrokeWidth="xxdp"
app:boxStrokeWidthFocused="xxdp"

or in a custom style:

<item name="boxStrokeWidth">xxdp</item>
<item name="boxStrokeWidthFocused">xxdp</item>

Note: it requires the version 1.1.0.

Answer 2

<?xml version="1.0" encoding="utf-8" ?>

<shape xmlns:android="http://schemas.android.com/apk/r..."
   android:thickness="3dp"
   android:shape="rectangle">
  <stroke android:width="3dp" android:color="#4799E8"/>
</shape>

add this in drawable resource file and in edit text change its background:

<EditText    
      android:background="@drawable/drawableResourceFileName"/>