Make a certain part of a android-textview align to the right

Question

I have this TextView. Some parts of it is supposed to be aligned to the left and some parts to the right. How would I do this in Java?

Basicly I want t

Answer 1

Inspired other solutions, but resolving multiline text issues and text overlap issue.

class LineOverlapSpan() : LineHeightSpan {
    var originalBottom: Int = 0
    var originalDescent: Int = 0
    var overlapSaved = false

    override fun chooseHeight(
        text: CharSequence?,
        start: Int,
        end: Int,
        spanstartv: Int,
        v: Int,
        fm: Paint.FontMetricsInt?
    ) {
        if (fm == null) {
            return
        }

        if (!overlapSaved) {
            originalBottom = fm.bottom
            originalDescent = fm.descent
            overlapSaved = true
        }

        if (text?.subSequence(start, end)?.endsWith("\n") == true) {
            fm.bottom += fm.top
            fm.descent += fm.top
        } else {
            fm.bottom = originalBottom
            fm.descent = originalDescent
        }
    }

}

Usage:

fun keyValueSpan(key: CharSequence, value: CharSequence) = span {
    span {
        alignment = "normal"
        +key
        span {
            textColor = Color.TRANSPARENT
            +value
        }
        span {
            +"\n"
            addSpan(LineOverlapSpan())
        }
    }
    span {
        alignment = "opposite"
        +value
    }
}

Kotlin solution is using Kpan library https://github.com/2dxgujun/Kpan