如何在MainActivity中设置片段的数据

<FrameLayout
    android:id="@+id/fragment_container"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();

YourFragment fragment = new YourFragment();
Bundle bundle = new Bundle();
bundle.putString("key", "value"); // 设置需要传递的数据，可以根据需要设置不同类型的数据
fragment.setArguments(bundle);

fragmentTransaction.add(R.id.fragment_container, fragment);
fragmentTransaction.commit();