【发布时间】：2015-11-15 06:59:11
【问题描述】：
我想在聊天中存储位置类型，以便可以根据位置搜索对话，因此我使用 Quickblox 管理面板创建了一个名为 MyDialog 的自定义对象。此自定义对象只有一个名为 location 的字段，类型为 Location。
我尝试了两种使用对话框保存位置数据的方法，但都给我带来了问题：
方法 1：存储一个 Double[]
Double myLocation[] = {locationManager.getLastLocation().getLatitude()
locationManager.getLastLocation().getLongitude()};
Map<String,String> customParameters = new HashMap<>();
customParameters.put("data[class_name]","MyDialog");
customParameters.put("data[location]", Arrays.toString(myLocation));
final QBDialog qbDialog = new QBDialog();
qbDialog.setName("Test");
qbDialog.setType(QBDialogType.GROUP);
qbDialog.setData(customParameters);
问题 1
这种方法的问题是创建的对话框总是有纬度'0'。以下是对话框创建响应：
{
"_id":"56448a1aa28f9ad7af000164",
"created_at":"2015-11-12T12:46:18Z",
"data":{"_qb_location":{"type":"Point","coordinates":[0,-42.6159729]},"class_name":"MyDialog"}, (...) }
方法 2：存储一个 QBLocation
QBLocation qbLocation = new QBLocation(locationManager.getLastLocation().getLatitude(),
locationManager.getLastLocation().getLongitude());
Map<String,String> customParameters = new HashMap<>();
customParameters.put("data[class_name]","MyDialog");
customParameters.put("data[location]", qbLocation.toString());
final QBDialog qbDialog = new QBDialog();
qbDialog.setName("Test");
qbDialog.setType(QBDialogType.GROUP);
qbDialog.setData(customParameters);
问题 2
这种方法的问题是创建的对话框总是有坐标：[0,0]。以下是对话框创建响应：
{
"_id":"56448a1aa28f9ad7af000164",
"created_at":"2015-11-12T12:46:18Z",
"data":{"_qb_location":{"type":"Point","coordinates":[0,0]},"class_name":"MyDialog"}, (...) }
要检索附近的对话，我有这个代码
Double[] myLocation = {locationManager.getLastLocation().getLatitude(),
locationManager.getLastLocation().getLongitude()};
final QBRequestGetBuilder requestBuilder = new QBRequestGetBuilder();
requestBuilder.setPagesLimit(5);
requestBuilder.near("data[location]",myLocation,NEARBY_ROOMS_DISTANCE);
QBChatService.getChatDialogs(QBDialogType.GROUP, requestBuilder,
new QBEntityCallbackImpl<ArrayList<QBDialog>>() {
@Override
public void onSuccess(final ArrayList<QBDialog> dialogs, Bundle args) {
if(dialogs.size()!=0) {
roomsEvents.setEvent(RoomsEvents.ROOM_RETRIEVED);
roomsEvents.setQbDialog(dialogs.get(0));
EventBus.getDefault().post(roomsEvents);
}else{
roomsEvents.setEvent(RoomsEvents.NO_ROOMS_NEARBY);
EventBus.getDefault().post(roomsEvents);
}
}
@Override
public void onError(List<String> errors) {
roomsEvents.setEvent(RoomsEvents.RETRIEVE_ROOM_ERROR);
EventBus.getDefault().post(roomsEvents);
}
});
}
我的位置经理：
public class LocationManagement implements LocationManager {
private Context mContext;
private GoogleApiClient mGoogleApiClient;
private Location mLastLocation;
private LocationRequest mLocationRequest;
@Inject
public LocationManagement(Context mContext){
this.mContext = mContext;
startGooglePlayServices();
}
private void startLocationUpdates(){
mLocationRequest = LocationRequest.create()
.setInterval(10000)
.setFastestInterval(5000)
.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient,
mLocationRequest, this);
}
@Override
public void onLocationChanged(Location location) {
mLastLocation = location;
shareOwnLocation(mLastLocation);
}
@Override
public void shareOwnLocation(Location location) {
double lat = location.getLatitude();
double lng = location.getLongitude();
QBLocation qbLocation = new QBLocation(lat, lng);
QBLocations.createLocation(qbLocation, new QBEntityCallbackImpl<QBLocation>() {
@Override
public void onSuccess(QBLocation qbLocation, Bundle bundle) {
LocationEvents locationEvent = new LocationEvents();
locationEvent.setEvent(LocationEvents.LOCATION_SHARED);
EventBus eventBus = EventBus.getDefault();
eventBus.post(locationEvent);
}
@Override
public void onError(List<String> list) {
// TODO
}
});
}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
}
@Override
public float distanceToMyLocation(Location destiny) {
return mLastLocation.distanceTo(destiny);
}
@Override
public Location buildLocation(double latitude, double longitude) {
Location mLocation = new Location("");
mLocation.setLatitude(latitude);
mLocation.setLongitude(longitude);
return mLocation;
}
@Override
public void onConnected(Bundle bundle) {
mLastLocation = LocationServices.FusedLocationApi.getLastLocation(
mGoogleApiClient);
if (mLastLocation != null) {
shareOwnLocation(mLastLocation);
}else{
startLocationUpdates();
}
}
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void startGooglePlayServices() {
this.mGoogleApiClient = new GoogleApiClient.Builder(mContext)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
}
@Override
public void disconnectToGoogleApi() {
mGoogleApiClient.disconnect();
}
@Override
public void connectToGoogleApi() {
mGoogleApiClient.connect();
}
@Override
public Location getLastLocation() {
return mLastLocation;
}
}
使用聊天存储位置类型并仍然能够检索附近房间的正确方法是什么？
【问题讨论】：
-
@MrsEd，我添加了用于检索聊天的代码，它只是一个使用EventBus 库通知已检索聊天的回调。而且，需要说明的是，我需要帮助将 Location 类型与 QBDialog 相关联，因为我使用了这两种方法，但它们都错误地存储了位置数据。跨度>
-
@MrsEd，我很确定问题不在于我的位置管理器，因为在检索聊天记录之前，我将当前位置存储在 Quickblox 服务器上，并以正确的纬度和经度。但是如果你想要的话，看看吧。我编辑了我的代码。
-
没问题@MrsEd ;-)。并感谢您的关注。
-
您可以发布您的 REST 请求日志吗？将分析并返回建议