If you are looking to make Custom Font in android check the below code example. For this first download the required fonts on your system and then place it in fonts folder. After putting fonts in the assets/fonts folder then I have used java code through Typeface class. See Below code example it will clearly described you how to create Custom font function.

Step(1)-styles.xml

<style name="TextStyle">
 <item name="android:layout_width">match_parent</item>
 <item name="android:layout_height">wrap_content</item>
 <item name="android:textSize">@dimen/text_size</item>
 <item name="android:layout_marginTop">@dimen/text_margin_top</item>
</style>

Step(2)-dimens.xml

<resources>
    <dimen name="activity_padding">10dp</dimen>
    <dimen name="text_size">40sp</dimen>
    <dimen name="text_margin_top">25dp</dimen>
</resources>

Step(3)-activity_main.xml

<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="@dimen/activity_padding"
    tools:context=".MainActivity">


    <TextView
        android:id="@+id/Evon"
        style="@style/TextStyle"
        android:text="Evon" />


    <TextView
        android:id="@+id/Apple"
        style="@style/TextStyle"
        android:text="Apple" />


    <TextView
        android:id="@+id/Microsoft"
        style="@style/TextStyle"
        android:text="Microsoft" />

</LinearLayout>

Step(4)MainActivity-

public class MainActivity extends AppCompatActivity {

    private TextView mEvon = null;
    private TextView mApple = null;
    private TextView mMicrosoft = null;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        initViews();


        Typeface face_01 = Typeface.createFromAsset(getAssets(), "customfont/libertylegion.ttf");

         mEvon.setTypeface(face_01);




Typeface face_02 = Typeface.createFromAsset(getAssets(),"customfont/ChronicDelivery.ttf");

        mApple.setTypeface(face_02);




Typeface face_03 = Typeface.createFromAsset(getAssets(),"customfont/MilasianMediumPERSONAL.ttf");

        mMicrosoft.setTypeface(face_03);


    }

    private void initViews() {
        mEvon = (TextView) findViewById(R.id.evon);
        mApple = (TextView) findViewById(R.id.apple);
        mMicrosoft = (TextView) findViewById(R.id.microsoft);
    }
}