Vertical TextView

VericalTextView.java

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Typeface;
import android.text.TextPaint;
import android.util.AttributeSet;
import android.view.Gravity;

public class VerticalTextView extends android.support.v7.widget.AppCompatTextView {
    final boolean topDown;
    public static final String ANDROID_SCHEMA = "http://schemas.android.com/apk/res/android";

    public VerticalTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
        final int gravity = getGravity();
        if (Gravity.isVertical(gravity) && (gravity & Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) {
            setGravity((gravity & Gravity.HORIZONTAL_GRAVITY_MASK) | Gravity.TOP);
            topDown = false;
        } else
            topDown = true;
        applyCustomFont(context, attrs);
    }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        super.onMeasure(heightMeasureSpec, widthMeasureSpec);
        setMeasuredDimension(getMeasuredHeight(), getMeasuredWidth());
    }

    @Override
    protected void onDraw(Canvas canvas) {
        TextPaint textPaint = getPaint();
        textPaint.setColor(getCurrentTextColor());
        textPaint.drawableState = getDrawableState();

        canvas.save();

        if (topDown) {
            canvas.translate(getWidth(), 0);
            canvas.rotate(90);
        } else {
            canvas.translate(0, getHeight());
            canvas.rotate(-90);
        }


        canvas.translate(getCompoundPaddingLeft(), getExtendedPaddingTop());

        getLayout().draw(canvas);
        canvas.restore();
    }

    private void applyCustomFont(Context context, AttributeSet attrs) {
        int textStyle = attrs.getAttributeIntValue(ANDROID_SCHEMA, "textStyle", Typeface.NORMAL);
        setTypeface(selectTypeface(context, textStyle));
    }

    private Typeface selectTypeface(Context context, int textStyle) {
        switch (textStyle) {
            case Typeface.BOLD:
                return Typeface.createFromAsset(context.getAssets(), "ProzaLibre-Medium.ttf");
            case Typeface.NORMAL:
                return Typeface.createFromAsset(context.getAssets(), "ProzaLibre-Regular.ttf");// regular
            default:
                return Typeface.createFromAsset(context.getAssets(), "ProzaLibre-Regular.ttf");// regular
        }
    }
}