在Android Java中更改另一个片段中的片段

我正在处理片段，在尝试从当前片段更改片段时遇到异常。 基本设计是：

具有框架布局的活动

最初放置在活动框架布局中的片段

片段A布局有一个框架布局，比如说框架A

最初加载到框架布局中的子片段

主要的设计思想是按下一个按钮Child_Fragment_a，在框架布局中加载Child_Fragment_B。 目前，在Child_Fragment_A中按钮的点击侦听器中，我使用以下代码实现此目的

if (v.getParent() != null) {
            FragmentTransaction transaction = getActivity().getSupportFragmentManager().beginTransaction();
            transaction.replace(R.id.child_fragment, new searchResults());
            transaction.addToBackStack(null);
            transaction.commit();
            Log.d("mActivity", "loadfragment()");
        }
        else{
            ((ViewGroup)v.getParent()).removeView(v);
            FragmentTransaction transaction = getActivity().getSupportFragmentManager().beginTransaction();
            transaction.replace(R.id.child_fragment, new searchResults());
            transaction.addToBackStack(null);
            transaction.commit();
            Log.d("mActivity", "loadfragment()");
        }

此onClick（）是在Child_Fragment_A的OnCreateView中实现的。但是，这会导致以下异常：

例外情况

D/AndroidRuntime: Shutting down VM
    
    
    --------- beginning of crash
E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.rehnsehan, PID: 2114
    java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
        at android.view.ViewGroup.addViewInner(ViewGroup.java:5235)
        at android.view.ViewGroup.addView(ViewGroup.java:5064)
        at android.view.ViewGroup.addView(ViewGroup.java:5004)
        at android.view.ViewGroup.addView(ViewGroup.java:4976)
        at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:887)
        at androidx.fragment.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManagerImpl.java:1238)
        at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:1303)
        at androidx.fragment.app.BackStackRecord.executeOps(BackStackRecord.java:439)
        at androidx.fragment.app.FragmentManagerImpl.executeOps(FragmentManagerImpl.java:2079)
        at androidx.fragment.app.FragmentManagerImpl.executeOpsTogether(FragmentManagerImpl.java:1869)
        at androidx.fragment.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManagerImpl.java:1824)
        at androidx.fragment.app.FragmentManagerImpl.execPendingActions(FragmentManagerImpl.java:1727)
        at androidx.fragment.app.FragmentManagerImpl$2.run(FragmentManagerImpl.java:150)
        at android.os.Handler.handleCallback(Handler.java:938)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:223)
        at android.app.ActivityThread.main(ActivityThread.java:7656)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:947)

---

希望我能充分解释我的问题，请指出我遗漏了什么或做错了什么。谢谢。

请包括整个堆栈trace@ianhanniballake在编辑中添加了它