onSaveInstanceState 的基本使用

1.//保存imgPager（PagerView）状态 @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); outState.putInt("pager_current_item",pagerImages.getCurrentItem()); }

2.恢复保存的状态

@Override public void onActivityCreated(@Nullable Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); if (savedInstanceState != null){ int currentItem = savedInstanceState.getInt("pager_current_item"); pagerImages.setCurrentItem(currentItem); } }