TEXT FIELD

From google material design documentation.

Text fields allow the user to input text, select text (cut, copy, paste), and lookup data via auto-completion.

HOW TO ADD?

I. In your build.gradle add latest appcompat library.

dependencies {  
    compile 'com.android.support:appcompat-v7:X.X.X' // where X.X.X version
}

II. Make your activity extend android.support.v7.app.AppCompatActivity.

public class MainActivity extends AppCompatActivity {  
    ...
}

III. Declare your EditText inside any layout.xml file.

<EditText  
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:hint="Hint text"/>

I. Declare custom style in your styles.xml file.

<style name="MyEditText" parent="Theme.AppCompat.Light">  
    <item name="colorControlNormal">@color/indigo</item>
    <item name="colorControlActivated">@color/pink</item>
</style>

II. Apply this style to your EditText via android:theme attribute.

<EditText  
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:hint="Hint text"
    android:theme="@style/MyEditText"/>