public void hideSoftInput(Activity activity) {
        // 关闭软键盘
        if (activity.getCurrentFocus() != null) {
            if (activity.getCurrentFocus().getWindowToken() != null) {
                InputMethodManager inputMethodManager = (InputMethodManager) activity.getSystemService(Context.INPUT_METHOD_SERVICE);
                inputMethodManager.hideSoftInputFromWindow(activity.getCurrentFocus().getWindowToken(),InputMethodManager.HIDE_NOT_ALWAYS);
            }
        }
    }