Android基于ViewPager Fragment实现选项卡

animation = new TranslateAnimation(position_two, position_one, 0, 0); tvTabFriends.setTextColor(resources.getColor(R.color.lightwhite));

} else if (currIndex == 3) { animation = new TranslateAnimation(position_three, position_one, 0, 0);

tvTabChat.setTextColor(resources.getColor(R.color.lightwhite)); }

tvTabGroups.setTextColor(resources.getColor(R.color.white)); break;

case 2: if (currIndex == 0) {

animation = new TranslateAnimation(0, position_two, 0, 0); tvTabActivity.setTextColor(resources.getColor(R.color.lightwhite));

} else if (currIndex == 1) { animation = new TranslateAnimation(position_one, position_two, 0, 0);

tvTabGroups.setTextColor(resources.getColor(R.color.lightwhite)); } else if (currIndex == 3) {

animation = new TranslateAnimation(position_three, position_two, 0, 0); tvTabChat.setTextColor(resources.getColor(R.color.lightwhite));

} tvTabFriends.setTextColor(resources.getColor(R.color.white));

break; case 3:

if (currIndex == 0) { animation = new TranslateAnimation(0, position_three, 0, 0);

tvTabActivity.setTextColor(resources.getColor(R.color.lightwhite)); } else if (currIndex == 1) {

animation = new TranslateAnimation(position_one, position_three, 0, 0); tvTabGroups.setTextColor(resources.getColor(R.color.lightwhite));

} else if (currIndex == 2) { animation = new TranslateAnimation(position_two, position_three, 0, 0);

tvTabFriends.setTextColor(resources.getColor(R.color.lightwhite)); }

tvTabChat.setTextColor(resources.getColor(R.color.white)); break;

} currIndex = arg0;

animation.setFillAfter(true); animation.setDuration(300);

ivBottomLine.startAnimation(animation); }

@Override public void onPageScrolled(int arg0, float arg1, int arg2) {

} @Override

public void onPageScrollStateChanged(int arg0) { }