我尝试实施此库https://github.com/mrmans0n/clusterer时出错。
我收到NullPointerException并且我不知道为什么,如果有人可以帮我解决这个问题。
FATAL EXCEPTION: main java.lang.NullPointerException
at io.nlopez.clusterer.QuadTreeBoundingBox.containsData(QuadTreeBoundingBox.java:51)
at io.nlopez.clusterer.QuadTree$QuadTreeNode.insertData(QuadTree.java:99)
at io.nlopez.clusterer.QuadTree.insertData(QuadTree.java:33)
at io.nlopez.clusterer.Clusterer.addAll(Clusterer.java:148)
at greatlifedevelopers.studentrental.fragments.MapsV2General.initClusterer(MapsV2General.java:358)
at greatlifedevelopers.studentrental.fragments.MapsV2General.moveMap(MapsV2General.java:353)
at greatlifedevelopers.studentrental.fragments.MapsV2General.access$300(MapsV2General.java:57)
at greatlifedevelopers.studentrental.fragments.MapsV2General$AllAlojamientos.onPostExecute(MapsV2General.java:341)
at greatlifedevelopers.studentrental.fragments.MapsV2General$AllAlojamientos.onPostExecute(MapsV2General.java:231)
at android.os.AsyncTask.finish(AsyncTask.java:602)
at android.os.AsyncTask.access$600(AsyncTask.java:156)
at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:615)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4441)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
at dalvik.system.NativeStart.main(Native Method)
这是我填充List
的AsynTaskpublic class AllAlojamientos extends AsyncTask<String, String, String>{
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(MapsV2General.this.getActivity());
pDialog.setMessage("Please wait a moment..");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
@Override
protected String doInBackground(String... args) {
pointAlojamientoses = new ArrayList<PointAlojamientos>();
List<NameValuePair> params = new ArrayList<NameValuePair>();
JSONObject json = jParser.makeHttpRequest(url_todos_alojamientos, "GET", params);
/*JSONObject jsons = jParser.makeHttpRequest(url_todos_servicios, "GET", params);*/
try{
int success = json.getInt(TAG_SUCCESS);
if (success == 1) {
alojamiento = json.getJSONArray(TAG_ALOJAMIENTO);
for (int i = 0; i < alojamiento.length(); i++) {
JSONObject c = alojamiento.getJSONObject(i);
name = c.getString(TAG_NOMBRE);
directions = c.getString(TAG_DIRECCION);
pointAlojamientoses.add(new PointAlojamientos(new LatLng(Double.parseDouble(c.getString(TAG_LATITUD)), Double.parseDouble(c.getString(TAG_LONGITUD))), name, directions));
}
} else {
//
}
} catch (JSONException e){
pDialog.dismiss();
e.printStackTrace();
} catch (NullPointerException e){
pDialog.dismiss();
}
return null;
}
@Override
protected void onPostExecute(String a) {
super.onPostExecute(a);
pDialog.dismiss();
moveMap();
initClusterer();
}
}
这是我的initClusterer,我收到错误。
private void initClusterer() {
clusterer = new Clusterer<PointAlojamientos>(this.getActivity(), googleMap);
clusterer.addAll(pointAlojamientoses);
clusterer.setAnimationEnabled(true);
clusterer.setMarkerAnimation(new MarkerAnimation() {
@Override
public void animateMarker(Marker marker, float interpolation) {
// Basic fading animation
marker.setAlpha(interpolation);
}
});
clusterer.setClustererListener(new Clusterer.ClustererClickListener<PointAlojamientos>() {
@Override
public void markerClicked(PointAlojamientos marker) {
Log.e("Cluster", "marker clicked");
}
@Override
public void clusterClicked(io.nlopez.clusterer.Cluster position) {
Log.e("Clusterer", "cluster clicked");
}
});
clusterer.setOnPaintingMarkerListener(new OnPaintingClusterableMarkerListener<PointAlojamientos>() {
@Override
public void onMarkerCreated(Marker marker, PointAlojamientos clusterable) {
}
@Override
public MarkerOptions onCreateMarkerOptions(PointAlojamientos poi) {
return new MarkerOptions().position(poi.getPosition()).title(poi.getName()).snippet(poi.getDescription());
}
});
clusterer.setOnPaintingClusterListener(new OnPaintingClusterListener<PointAlojamientos>() {
@Override
public void onMarkerCreated(Marker marker, io.nlopez.clusterer.Cluster<PointAlojamientos> cluster) {
}
@Override
public MarkerOptions onCreateClusterMarkerOptions(io.nlopez.clusterer.Cluster<PointAlojamientos> cluster) {
return new MarkerOptions()
.title("Clustering" + cluster.getWeight() + "items")
.position(cluster.getCenter())
.icon(BitmapDescriptorFactory.fromBitmap(getClusteredLabel(cluster.getWeight(), getActivity())));
}
});
}