How to set Text Alignment Justified for the text ?

[icstar]

I am happy to work with this library. For now, I want to add justify alignment on the text. The text justified property will need to be kept for both status Expanded and Collapsed. how can I do it?

[aci9evil]

private static void justify(final TextView textView) {

    final AtomicBoolean isJustify = new AtomicBoolean(false);

    final String textString = textView.getText().toString();

    final TextPaint textPaint = textView.getPaint();

    final SpannableStringBuilder builder = new SpannableStringBuilder();

    textView.post(() -> {

        if (!isJustify.get()) {

            final int lineCount = textView.getLineCount();
            final int textViewWidth = textView.getWidth() - 1;

            for (int i = 0; i < lineCount; i++) {

                int lineStart = textView.getLayout().getLineStart(i);
                int lineEnd = textView.getLayout().getLineEnd(i);

                String lineString = textString.substring(lineStart, lineEnd);

                if (i == lineCount - 1) {
                    builder.append(new SpannableString(lineString));
                    break;
                }

                String trimSpaceText = lineString.trim();
                String removeSpaceText = lineString.replaceAll(" ", "");

                float removeSpaceWidth = textPaint.measureText(removeSpaceText);
                float spaceCount = trimSpaceText.length() - removeSpaceText.length();

                float eachSpaceWidth = (textViewWidth - removeSpaceWidth) / spaceCount;

                SpannableString spannableString = new SpannableString(lineString);
                for (int j = 0; j < trimSpaceText.length(); j++) {
                    char c = trimSpaceText.charAt(j);
                    if (c == ' ') {
                        Drawable drawable = new ColorDrawable(0x00ffffff);
                        drawable.setBounds(0, 0, (int) eachSpaceWidth, 0);
                        ImageSpan span = new ImageSpan(drawable);
                        spannableString.setSpan(span, j, j + 1, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
                    }
                }

                builder.append(spannableString);
            }

            textView.setText(builder);
            isJustify.set(true);
        }
    });
}