TabLayout 选中加粗

  tablayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
            @Override
            public void onTabSelected(TabLayout.Tab tab) {
                if (tab == null || tab.getText() == null) {
                    return;
                }
                String trim = tab.getText().toString().trim();
                SpannableString spStr = new SpannableString(trim);
                StyleSpan styleSpan_B = new StyleSpan(Typeface.BOLD);
                spStr.setSpan(styleSpan_B, 0, trim.length(), Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
                tab.setText(spStr);

            }

            @Override
            public void onTabUnselected(TabLayout.Tab tab) {
                if (tab == null || tab.getText() == null) {
                    return;
                }
                String trim = tab.getText().toString().trim();
                SpannableString spStr = new SpannableString(trim);
                StyleSpan styleSpan_B = new StyleSpan(Typeface.NORMAL);
                spStr.setSpan(styleSpan_B, 0, trim.length(), Spanned.SPAN_INCLUSIVE_EXCLUSIVE);
                tab.setText(spStr);
            }

            @Override
            public void onTabReselected(TabLayout.Tab tab) {
            }
        });