1、选中标题后，高亮标题
@Override        public void onPageSelected(int position) {            setSelectTextColor(position);            if (delegatePageListener != null) {                delegatePageListener.onPageSelected(position);            }        }

private void setSelectTextColor(int position) {        for (int i = 0; i < tabCount; i++) {            View view = tabsContainer.getChildAt(i);            if (view instanceof ImageButton) {            } else if (view instanceof RelativeLayout) {                View viewText = ((RelativeLayout) view).getChildAt(0);                TextView tabTextView = (TextView) viewText;                if (viewText instanceof TextView) {                    if (position == i) {                        tabTextView.setTextColor(自定义颜色);                    } else {                        tabTextView.setTextColor(tabTextColor);                    }                }            }        }    }

    private void updateTabStyles() {        for (int i = 0; i < tabCount; i++) {            View v = tabsContainer.getChildAt(i);            v.setBackgroundResource(tabBackgroundResId);            if (v instanceof RelativeLayout) {                View v1 = ((RelativeLayout) v).getChildAt(0);                if (v1 instanceof TextView) {                    TextView tab = (TextView) v1;                    tab.setTextSize(TypedValue.COMPLEX_UNIT_PX, tabTextSize);                    tab.setTypeface(tabTypeface, tabTypefaceStyle);                    if (i == 0) {                        tab.setTextColor(自定义颜色);                    } else {                        tab.setTextColor(tabTextColor);                    }                    if (textAllCaps) {                        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {                            tab.setAllCaps(true);                        } else {                            tab.setText(tab.getText().toString().toUpperCase(locale));                        }                    }                }            }        }    }