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我正在创建一个应用程序，我想在我的CustomMapFragment和ListFragment. 如果我启动应用程序并调用replaceFragment：

private void replaceFragment(final Fragment fragment) {
    final FragmentManager fragmentManager = mActivity.getFragmentManager();
    fragmentManager.beginTransaction()
            .replace(R.id.main_content_frame, fragment)
            .commit();
}

replaceFragment(new CustomMapFragment())看起来Map应该。

这CustomMapFragment是一个片段，我将 a 替换FrameLayout为 native MapFragment，使其与代码分开。

如果我在按钮单击或其他东西上再次调用替换方法，使用不同Fragment的（ListFragment例如），FrameLayout被替换为这个，一切都很好。

CustomMapFragment如果我Map现在尝试再次Marker用CustomMapFragment.

CustomMapFragment：

public class CustomMapFragment extends BaseFragment {

    private static final String LOG_TAG = PosMapFragment.class.getSimpleName();
    private MapFragment mMapFragment;
    private GoogleMap   mMap;
    private ImageLoader mImageLoader;

    private Context     mContext;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        mContext = getActivity();

        final RequestQueue reqQueue = Volley.newRequestQueue(mContext);
        mImageLoader = new ImageLoader(reqQueue, new BitmapLruCache(mContext));
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.maps_fragment, container, false);
    }

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        mMapFragment = MapFragment.newInstance();
        replaceFragment(mMapFragment);
    }

    private void postMapInitialisation() {
        new View(getActivity()).post(new Runnable() {
            @Override
            public void run() {
                addTestMarker(0, 0, "http://www.jimis-cyberstore.com/store/media/gp_batman_tshirts.jpg");
                addTestMarker(10, 10, "http://img.netzwelt.de/software/icons/2012/8842/android-sdk.png");
                addTestMarker(50, 50, "http://fs02.androidpit.info/ali/x84/4053084-1374511678988-80x80.png");
                addTestMarker(5, 0, "http://im.wk.io/images/77e3e40/kitkat-chromium-ubernimmt-in-android.jpeg");
                addTestMarker(0, 10, "http://www.mchme.de/cms/kategorien/18_Software/dateien/fb_logo_80.jpg");
                addTestMarker(15, 5, "http://navigator.ptvgroup.com/uploads/pics/PTV_Navigator_Android_Windows2_80x80px_01.png");
            }
        });
    }

    @Override
    public void onResume() {
        super.onResume();
        setUpMapIfNeeded();
        postMapInitialisation();
        EventBusProvider.getInstance().register(this);
    }

    private void replaceFragment(final Fragment fragment) {
        final FragmentManager fragmentManager = getFragmentManager();
        fragmentManager.beginTransaction()
                .replace(R.id.maps, fragment)
                .commit();
    }

    private void setUpMapIfNeeded() {
        if (mMap == null) {
            mMap = mMapFragment.getMap();
            if (mMap != null) {
                mMap.setMyLocationEnabled(true);
                mMap.setInfoWindowAdapter(this);
                mMap.setOnInfoWindowClickListener(this);
            }
        }
    }

    private void addTestMarker(final double lat, final double lng, String url){
        if(mMap != null){
            final NetworkImageMarker networkImageMarker = new NetworkImageMarker(mContext, url);
            final Marker marker = mMap.addMarker(networkImageMarker.getMarkerOptions(lat, lng, mImageLoader));
            networkImageMarker.setMarker(marker);
            networkImageMarker.setReloadListener(new OnReloadListener() {
                @Override
                public void reAddNetworkImageMarker(Bitmap bitmap) {
                    mMap.addMarker(networkImageMarker.getMarkerOptions(lat, lng, bitmap));
                }
            });
        }
    }

    @Subscribe
    public void onLocationChanged(final LocationChangedEvent event) {
        centerMap(event.mLocation);
    }

    private void centerMap(Location location){
        double latitude = location.getLatitude();
        double longitude = location.getLongitude();
        LatLng latLng = new LatLng(latitude, longitude);
        centerMapAtLocation(latLng);
    }

    private void centerMapAtLocation(LatLng location) {
        mMap.moveCamera(CameraUpdateFactory.newLatLng(location));
        mMap.animateCamera(CameraUpdateFactory.zoomTo(14));
    }
}

主要布局只是 a FrameLayout，它被替换为不同Fragment的 s。我还尝试仅加载一个同时加载Fragment了CustomMapFragment和的ListFragment两个FrameLayouts，因此它们彼此堆叠，但最终以相同的行为结束。

MapFragment（不是）似乎有问题SupportMapFragment。

  • MapFragment在开始时加载=MapFragment看起来很完美
  • MapFragment-> ListFragment-> MapFragment=MapFragment是一个空地图
  • ListFragment-> MapFragment=MapFragment是一个空地图
  • MapFragment-> MapFragment=MapFragment是一个空地图
4

1 回答 1

4

因为您试图替换另一个片段中的片段，所以您应该在替换方法中使用 getChildFragmentManager() 而不是 getFragmentManager()。

private void replaceFragment(final Fragment fragment) {
    final FragmentManager fragmentManager = getChildFragmentManager();
    fragmentManager.beginTransaction()
            .replace(R.id.maps, fragment)
            .commit();
}

不幸的是 getChildFragmentManager() 仅支持 api lvl >= 17，因此您可能必须使用 android-support-v4 库。

于 2014-04-11T08:53:59.977 回答