android软键盘

InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
                boolean isOpen=imm.isActive();//isOpen若返回true，则表示输入法打开
                if (isOpen){
//                    imm.toggleSoftInput(0,InputMethodManager.HIDE_NOT_ALWAYS);
                    View view = getWindow().peekDecorView();
                    if (view!=null&&view.getWindowToken()!=null){
                        imm.hideSoftInputFromWindow(view.getWindowToken(),0);
                    }
                }