活动销毁片段交易

Question

我正在开发一款应用，但我遇到了一个问题，

我每次收到广播时都会在活动b中从片段1替换为3，如果点击按钮，应用程序将返回活动a，但是当我再次尝试进入活动b时出现错误

致命异常：主要ava.lang.IllegalStateException：活动已被销毁

我一直在阅读，很多人都用这个来修理它：

try {
        Field childFragmentManager = Fragment.class.getDeclaredField("mChildFragmentManager");
        childFragmentManager.setAccessible(true);
        childFragmentManager.set(this, null);

    } catch (NoSuchFieldException e) {
        throw new RuntimeException(e);
    } catch (IllegalAccessException e) {
        throw new RuntimeException(e);
    }

但在我的情况下它没有用。

这是我的片段管理代码：

FragmentManager fm = getFragmentManager();
                FragmentTransaction ft = fm.beginTransaction();
                fragmento_2 fragment2 = new fragmento_2();
                Bundle m = new Bundle();
                m.putInt("numero_cuenta", tempo);
                fragment2.setArguments(m);
                ft.replace(R.id.layout,fragment2);
                ft.commitAllowingStateLoss();




             FragmentManager fm = getFragmentManager();
        FragmentTransaction ft = fm.beginTransaction();
        fragmento_3 fragment3 = new fragmento_3();
        Bundle n = new Bundle();
        n.putInt("numero_cuenta",tempo);
        fragment3.setArguments(n);
        ft.replace(R.id.layout,fragment3);
        ft.commitAllowingStateLoss();



    FragmentManager fm = getFragmentManager();
    FragmentTransaction ft = fm.beginTransaction();
    fragmento_1 fragment1 = new fragmento_1();
    ft.add(R.id.layout, fragment1);
    ft.commitAllowingStateLoss(); 

感谢