无法按标签获取当前片段

Question

我有一个问题是通过id获取当前片段 用标签替换片段后 当试图获得相同的片段时，我发现它为空

       FragmentTransaction ft = getActivity().getSupportFragmentManager().beginTransaction();
    ft.replace(R.id.request_frame, requestFragment, "Confirm").commit();
    RequestFragment requestFragment1=(RequestFragment) getActivity().getSupportFragmentManager().findFragmentByTag("Confirm");
    if (null!=requestFragment1)
    {
        Toast.makeText(getActivity(), "framgent found", Toast.LENGTH_SHORT).show();
    }else {
        Toast.makeText(getActivity(), "framgent Not found", Toast.LENGTH_SHORT).show();

    }

总是收到片段未找到

Answer 1

试试这个

Fragment fragment = getActivity().getSupportFragmentManager().findFragmentById(R.id.YOUR_CONTAINER);

if (fragment != null && fragment.equals(RequestFragment.class.getSimpleName())) {
    RequestFragment requestFragment1 = (RequestFragment) fragment;
    Toast.makeText(getActivity(), "framgent found", Toast.LENGTH_SHORT).show();
} else {
    Toast.makeText(getActivity(), "framgent Not found", Toast.LENGTH_SHORT).show();
}