android - 如何从 fragment 中获取 getSupportFragmentManager()

Question

getSupportFragmentManager 无法在 fragment 内工作

Fragment tFragment = MainActivity.newInstance();

        FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
        ft.replace(R.id.frame_container, tFragment);
        ft.commit();

任何答案都将是可观的

Answer 1

private FragmentActivity myContext;

覆盖 fragment 的 onAttach 方法:

@Override
public void onAttach(Activity activity) {
    myContext=(FragmentActivity) activity;
    super.onAttach(activity);
}

当您需要获得支持 fragment 管理器调用时:

FragmentManager fragManager = myContext.getSupportFragmentManager();

或

FragmentManager fragManager = getActivity().getSupportFragmentManager();

请参阅以下链接:-

How can I access getSupportFragmentManager() in a fragment?