Spannable Click TextView Android

click_phrase.java

private SpannableString addClickablePart2(String str) {
        final SpannableString ss = new SpannableString(str);
        final List<String> items = Arrays.asList(str.split("\\s*,\\s"));
        int start = 0, end;
        for (final String item : items) {
            end = start + item.length();
            if (start < end) {
                ss.setSpan(new ClickableSpan() {
                    @Override
                    public void onClick(View widget) {
                        Toast.makeText(MainActivity.this, item,
                                Toast.LENGTH_SHORT).show();
                    }
                }, start, end, 0);
            }
            start += item.length() + 2;//comma and space in the original text ;)
        }

        return ss;
    }

Click_word.java

 //click từng kí tự
 private SpannableStringBuilder addClickablePart1(String str) {
        SpannableStringBuilder ssb = new SpannableStringBuilder(str);
        String[] array = str.split(" ");
        int next = 0;
        int start = 0;
        for (final String s : array) {
            start = str.indexOf(s, next);
            ssb.setSpan(new NonUnderlinedClickableSpan() {
                @Override
                public void onClick(View widget) {
                    widget.setBackgroundColor(0xff0000);
                    widget.invalidate();
//                    Toast.makeText(MainActivity.this, s,
//                            Toast.LENGTH_SHORT).show();

                    tvText.setText(s);
                }
            }, start, next = start + s.length(), 0);
        }
        return ssb;
    }