Question

我有一个视图寻呼机，在一个标签中我有父片段，其中包含两个子片段。

候选列表是具有框架容器的父片段我替换了该容器内的一个子项（ candidatelistfragment ）但是当我更换了一个子项（候选事件开始）时它说没有找到视图。

我用来替换父片段容器中的第一个子代码的代码是（这很好用）

Fragment childFragment = new CandidateListFragment();
FragmentTransaction transaction = getChildFragmentManager().beginTransaction();
transaction.replace(R.id.childContainer, childFragment,"listfragment").commit();

这里childContainer是父容器的ID，现在当我必须在其中添加一个孩子时，它说找不到视图。

 Fragment childFragment = new CandidateStartEvent();
 FragmentTransaction transaction =getChildFragmentManager().beginTransaction();
 transaction.replace(R.id.childContainer, childFragment).commit();

Answer 1

我已经解决了在我使用getFragmentManager

的第二个子片段上发布的问题

CandidateStartEvent childFragment = new CandidateStartEvent();
FragmentTransaction transaction =getFragmentManager().beginTransaction();
transaction.replace(R.id.childContainer, childFragment).addToBackStack(null).commit();

Answer 2

你可以在Parent片段中添加子片段我在这里使用微调器选择替换片段。 1）reports_main_segment.xml 2）ReportFragment .java（父片段）

我有两个像

这样的子片段

1）LeadsReportFragment 2）OccupancyFragment

1）reports_main_segment.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:layout_width="match_parent"
              android:layout_height="match_parent"
              android:background="@color/gini_white_color"
              android:orientation="vertical">

    <Spinner
        android:id="@+id/report_spinner"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:layout_margin="@dimen/_10sdp"
        android:background="@drawable/gray_border_edittext"
        android:dropDownVerticalOffset="80dp"
        android:entries="@array/reports_status"
        android:padding="@dimen/_5sdp"
        android:textColor="@color/gini_gray_color_b7b7b7"/>


    <LinearLayout
        android:id="@+id/child_fragment_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical"></LinearLayout>
</LinearLayout>

2）ReportFragment.java

public class ReportFragment extends Fragment {
    private ViewGroup root;
    private Spinner report_spinner;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        root = (ViewGroup) inflater.inflate(R.layout.reports_main_segment,
                null);
        return root;
    }

    @Override
    public void onResume() {
        super.onResume();
        FindViewById();
    }


    private void FindViewById() {
        report_spinner = (Spinner) root.findViewById(R.id.report_spinner);
        report_spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
                String selected = adapterView.getItemAtPosition(i).toString();
                if (selected.equalsIgnoreCase("Leads")) {
                    setFragment(1);
                } else if (selected.equalsIgnoreCase("Occupancy")) {
                    setFragment(2);
                }
            }

            @Override
            public void onNothingSelected(AdapterView<?> adapterView) {
                // ToDo nothing selection
            }
        });

    }

    public void setFragment(int type) {
        FragmentManager fragmentManager = getFragmentManager();
        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
        if (type == 1) {
            LeadsReportFragment fragment = new LeadsReportFragment();
            fragmentTransaction.replace(R.id.child_fragment_view, fragment);
        } else if (type == 2) {
            OccupancyFragment fragment = new OccupancyFragment();
            fragmentTransaction.replace(R.id.child_fragment_view, fragment);
        }
        fragmentTransaction.addToBackStack(null);
        fragmentTransaction.commit();

    }


}

我们可以在视图寻呼机中的一个父片段中嵌套两个子片段吗？

2 个答案:

1）LeadsReportFragment 2）OccupancyFragment