Custom TextView with font support

attrs.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <declare-styleable name="TextView">
        <attr name="fontName" format="enum">
            <enum name="NotoSans_Bold" value="0" />
            <enum name="NotoSans_BoldItalic" value="1" />
            <enum name="NotoSans_Italic" value="2" />
            <enum name="NotoSans_Regular" value="3" />
            <enum name="NotoSansUI_Bold" value="4" />
            <enum name="NotoSansUI_BoldItalic" value="5" />
            <enum name="NotoSansUI_Italic" value="6" />
            <enum name="NotoSansUI_Regular" value="7" />
        </attr>
    </declare-styleable>
</resources>

strings.xml

<resources>
    <string name="NotoSans_Bold">NotoSans/Bold.ttf</string>
    <string name="NotoSans_BoldItalic">NotoSans/BoldItalic.ttf</string>
    <string name="NotoSans_Italic">NotoSans/Italic.ttf</string>
    <string name="NotoSans_Regular">NotoSans/Regular.ttf</string>
    <string name="NotoSansUI_Bold">NotoSans/UI-Bold.ttf</string>
    <string name="NotoSansUI_BoldItalic">NotoSans/UI-BoldItalic.ttf</string>
    <string name="NotoSansUI_Italic">NotoSans/UI-Italic.ttf</string>
    <string name="NotoSansUI_Regular">NotoSans/UI-Regular.ttf</string>
</resources>

TextView.java

package com.omerucel.widget;

import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Typeface;
import android.os.Build;
import android.support.annotation.RequiresApi;
import android.util.AttributeSet;

public class TextView extends android.widget.TextView {
    public TextView(Context context) {
        super(context);
    }

    public TextView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init(attrs);
    }

    public TextView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init(attrs);
    }

    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
    public TextView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
        super(context, attrs, defStyleAttr, defStyleRes);
        init(attrs);
    }

    protected void init(AttributeSet attributeSet) {
        readAttributes(attributeSet);
    }

    protected void readAttributes(AttributeSet attributeSet) {
        TypedArray typedArray = getContext().obtainStyledAttributes(attributeSet, R.styleable.TextView);
        Integer fontType = typedArray.getInteger(R.styleable.TextView_fontName, R.string.NotoSans_Regular);
        switch (fontType) {
            case 0:
                setFont(R.string.NotoSans_Bold);
                break;
            case 1:
                setFont(R.string.NotoSans_BoldItalic);
                break;
            case 2:
                setFont(R.string.NotoSans_Italic);
                break;
            case 3:
                setFont(R.string.NotoSans_Regular);
                break;
            case 4:
                setFont(R.string.NotoSansUI_Bold);
                break;
            case 5:
                setFont(R.string.NotoSansUI_BoldItalic);
                break;
            case 6:
                setFont(R.string.NotoSansUI_Italic);
                break;
            case 7:
                setFont(R.string.NotoSansUI_Regular);
                break;
        }
        typedArray.recycle();
    }

    protected void setFont(int resId) {
        setTypeface(Typeface.createFromAsset(getContext().getAssets(), getResources().getString(resId)));
    }
}