Question

我希望我的Fragment包含一个可交互的地图和下面的ListView。但是我在尝试合并这两个元素时遇到了困难，因为看起来Map主导了片段（尽管我的XML代码很可能是错误的）。

此外，我偶尔会遇到此错误：

Caused by: java.lang.IllegalArgumentException: Binary XML file line #8: Duplicate id 0x7f04003b, tag null, or parent id 0x0 with another fragment for com.google.android.gms.maps.SupportMapFragment.

我的XML是：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:map="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >

<RelativeLayout
    android:id="@+id/map"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    class="com.google.android.gms.maps.SupportMapFragment" />

<ListView
    android:id="@+id/map_frag_view"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

我的片段代码是：

public class MapFrag extends SherlockFragment {
protected ListView assocListView;
protected View mapFragView;
protected String[] assocArrayItems; 
protected ArrayAdapter<String> mapAdapter;
protected List assocList;

public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
    if (mapFragView != null) {
        ViewGroup parent = (ViewGroup) mapFragView.getParent();
        if (parent != null)
            parent.removeView(mapFragView);
    }
    try {
        mapFragView = inflater.inflate(R.layout.maptab, null, false);
    } catch (InflateException e) {
        /* map is already there, just return view as it is */
    }


    //Creating MapFragment from SharedPreferences recently stored information 
    SharedPreferences tmpManager = MainActivity.getInstance().prefs;

    System.out.println("now within the Map Fragment...");
    String recLatitude = tmpManager.getString("recentLatitude", "default");
    String recLongitude = tmpManager.getString("recentLongitude", "default");
    String recWordAssoc = tmpManager.getString("wordAssociations", "default");

    //Most Recent Items List
    String[] theList = null; 

    //TODO: ERROR HERE !!!!!!!!ClassCastException NoSaveStateFrameLayout 
    assocListView = (ListView) mapFragView.findViewById(R.id.map_frag_view);

    mapAdapter = new ArrayAdapter<String>(getActivity(), android.R.layout.simple_list_item_1,  theList);

    assocListView.setAdapter(mapAdapter);
    ((BaseAdapter) assocListView.getAdapter()).notifyDataSetChanged();

    if(mapFragView != null) { return mapFragView;}

    ((ViewGroup) assocListView.getParent()).removeView(assocListView);

    container.addView(assocListView);
    container.addView(mapFragView);

    return container;
}
}

Answer 1

尝试

android:layout_height="0dp"
android:layout_weight="1"
android:layout_width="match_parent"

两个元素。

重复ID问题与使用嵌套片段的错误方式有关。

来自：http://developer.android.com/about/versions/android-4.2.html#NestedFragments

注意：当布局包含<fragment>时，您无法将布局扩展为片段。只有动态添加到片段时才支持嵌套片段。

请在此处查看我的回答：MapFragment in Fragment, alternatives?

在同一片段中包含Map和ListView

1 个答案: