notifyDataSetChanged和键盘

Question

为什么键盘在我调用pagerAdapter.notifyDataSetChanged（）时隐藏; ?? 我正在使用https://github.com/romannurik/Android-WizardPager。 这个库使用ViewPager。当我调用notifyDataSetChanged并且软件键盘可见时，键盘隐藏。

public class WizardAdapter extends FragmentStatePagerAdapter {

        private int cutOffPage = -1;
        private BaseFragment primaryItem;

        public WizardAdapter(FragmentManager fm) {
            super(fm);
        }

        @Override
        public Fragment getItem(int i) {
            return pages.get(i).createFragment();
        }

        @Override
        public int getItemPosition(Object object) {
            if (object instanceof WizardFragment) {
                Page page = ((WizardFragment) object).getData();
                if (!pages.contains(page)) {
                    return POSITION_NONE;
                }
            }

            if (object == primaryItem) {
                // Re-use the current fragment (its position never changes)
                return POSITION_UNCHANGED;
            }

            return POSITION_NONE;
        }

        @Override
        public void setPrimaryItem(ViewGroup container, int position, Object object) {
            super.setPrimaryItem(container, position, object);

            primaryItem = (BaseFragment) object;
        }

        @Override
        public int getCount() {
            int count = 0;

            if (cutOffPage >= 0) {
                count = Math.min(cutOffPage + 1, pages.size());
            } else if (pages != null) {
                count = pages.size();
            }

            return count;
        }

        public int getCutOffPage() {
            return cutOffPage;
        }

        public void setCutOffPage(int cutOffPage) {
            this.cutOffPage = cutOffPage;
        }
    }

Answer 1

快速和脏修复可能是通过调用强制键盘显示：

((InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE)).toggleSoftInput(InputMethodManager.SHOW_FORCED, InputMethodManager.HIDE_IMPLICIT_ONLY);

或

getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);

Answer 2

尝试一下，这应该可行

//Import this
import android.view.inputmethod.InputMethodManager;

//Create object
private InputMethodManager imm;

imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);

imm.toggleSoftInput(InputMethodManager.SHOW_IMPLICIT, InputMethodManager.HIDE_IMPLICIT_ONLY);