DialogFragment使用中show()方法遇到的IllegalStateException

[yangchong211]

已经解决

    public void show(FragmentManager fragmentManager) {
        if (fragmentManager != null) {
            //show(fragmentManager, getFragmentTag());

            //主要是为了解决Can not perform this action after onSaveInstanceState异常
            //发生场景：Activity即将被销毁，再给它添加Fragment就会出错。
            FragmentTransaction ft = fragmentManager.beginTransaction();
            ft.add(this, getFragmentTag());
            ft.commitAllowingStateLoss();
        } else {
            Log.e("show", "需要设置setFragmentManager");
            throw new NullPointerException("需要设置setFragmentManager");
        }
    }