Class to support TextView with FontAwesome

FontAwesomeIcon.java

/**
 * Clase para cargar los iconos de FontAwesome v4.7.0
 * Usar {@link FontAwesomeIcon#setCodeText(String)} para hacer el set del texto en el codigo
 * @author oscarcid
 */
public class FontAwesomeIcon extends AppCompatTextView {

    int c1,c2,c3;
    Shader shader;

    public FontAwesomeIcon(Context context) {
        super(context);
        intitTypeFace();
    }

    public FontAwesomeIcon(Context context, @Nullable AttributeSet attrs) {
        super(context, attrs);
        intitTypeFace();
    }

    public FontAwesomeIcon(Context context, @Nullable AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        intitTypeFace();
    }

    private void intitTypeFace(){
        Typeface tf = Typeface.createFromAsset(getContext().getAssets(),"fontawesome-webfont.ttf");
        setTypeface(tf);
        setLayerType(LAYER_TYPE_SOFTWARE,null);
        createShader();
    }

    public void setCodeText(String textCode) {
        if (!textCode.equalsIgnoreCase("null")) {
            String finalText = "";
            if (textCode.contains("&#")) {
                String replaceText = textCode.replace("&#x","").replace(";","");
                finalText = new String(Character.toChars(Integer.parseInt(replaceText,16)));
            } else if (textCode.length()>4) {
                int sizeText = textCode.length();
                String replaceText = textCode.substring(sizeText - 4);
                finalText = new String(Character.toChars(Integer.parseInt(replaceText,16)));
            } else {
                finalText = new String(Character.toChars(Integer.parseInt(textCode,16)));
            }
            setText(finalText);
        }
    }

    private void createShader(){
        c1 = getResources().getColor(R.color.gradient_color_top);
        c2 = getResources().getColor(R.color.gradient_color_middle);
        c3 = getResources().getColor(R.color.gradient_color_bottom);

        /*shader = new LinearGradient(0, 0, getTextSize(), getTextSize(),
                new int[]{c3, c2, c1},
                null, Shader.TileMode.CLAMP);*/

        shader = new LinearGradient(0, 0, 0, getTextSize(),
                new int[]{c3, c2, c1},
                null, Shader.TileMode.MIRROR);

        getPaint().setShader(shader);
    }
}