How to create BackgroundColorSpan with padding

PaddingBackgroundColorSpan.java

import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.Rect;
import android.text.style.LineBackgroundSpan;

public class PaddingBackgroundColorSpan implements LineBackgroundSpan {
    private int mBackgroundColor;
    private int mPadding;
    private Rect mBgRect;

    public PaddingBackgroundColorSpan(int backgroundColor, int padding) {
        super();
        mBackgroundColor = backgroundColor;
        mPadding = padding;
        // Precreate rect for performance
        mBgRect = new Rect();
    }

    @Override
    public void drawBackground(Canvas c, Paint p, int left, int right, int top, int baseline, int bottom, CharSequence text, int start, int end, int lnum) {
        final int textWidth = Math.round(p.measureText(text, start, end));
        final int paintColor = p.getColor();
        // Draw the background
        mBgRect.set(left - mPadding,
                top - (lnum == 0 ? mPadding / 2 : - (mPadding / 2)),
                left + textWidth + mPadding,
                bottom + mPadding / 2);
        p.setColor(mBackgroundColor);
        c.drawRect(mBgRect, p);
        p.setColor(paintColor);
    }
}

Thanks for the code! Can this be modified to work with gravity="center" on the textView?

i work with a similar task, and also can not solve the problem with gravity = center.

Works for text if alignment is left, but when it's centered or right, then it doesn't work draws the background for the left aligned text.
I am working with converted code from this Java code to Kotlin.

For center-aligned text you really just need to subtract the width of the text from the width of the canvas and pad half the value on the left and right sides of the drawing Rect. F.ex.
`
val leftCalc = (right - left - it.toInt()) / 2

        bgRect.set(

            leftCalc - padding,

            top - (if (lnum == 0) padding / 2 else -1 * (padding / 2)),

            leftCalc + textWidth.toInt() + padding,

            bottom + padding / 2

        )`