加载谷歌地图时接收模糊的天空屏幕

Question

当我在设备上加载谷歌地图时,我有时会收到下面的屏幕.如第二次加载,如下所示. 否则它完全像正常的谷歌地图与路线我使用SupportmapFragment并获得googleMap对象.

 supportMapFragment = (SupportMapFragment) getChildFragmentManager().findFragmentById(R.id.map_view_fragment);

下面是在activity/fragment中显示map的代码

public static void drawRouteIntoMap(final List<? extends MapHelper> position, final GoogleMap googleMap) {
        /*List<MapHelper> position = new ArrayList<MapHelper>();
        for (int i = lastPosition; i < maps.size(); i++) {
            position.add(maps.get(i));
        }*/
        final LatLngBounds.Builder mapBounds = new LatLngBounds.Builder();
        if (position.size() > 0 && Validator.isNotNull(googleMap)) {
            googleMap.clear();
            List<PolylineOptions> polylineOptionses = new ArrayList<PolylineOptions>();
            PolylineOptions option = null;
            Boolean lastPause = null;
            for (MapHelper map : position) {
                if (map.isPause()) {
                    if (Validator.isNull(lastPause) || !lastPause) {
                        option = new PolylineOptions().width(5).color(Color.rgb(255, 0, 155)).geodesic(true);
                        polylineOptionses.add(option);
                    }
                    mapBounds.include(new LatLng(map.getLatitude(),map.getLongitude()));
                    option.add(new LatLng(map.getLatitude(), map.getLongitude()));
                } else {
                    if (Validator.isNull(lastPause) || lastPause) {
                        option = new PolylineOptions().width(5).color(Color.rgb(0, 179, 253)).geodesic(true);
                        polylineOptionses.add(option);
                    }
                    mapBounds.include(new LatLng(map.getLatitude(),map.getLongitude()));
                    option.add(new LatLng(map.getLatitude(), map.getLongitude()));
                }
                lastPause = map.isPause();
            }
            for (PolylineOptions options : polylineOptionses) {
                googleMap.addPolyline(options);
            }
            if(Validator.isNotNull(option)){
                //List<LatLng> points = option.getPoints();


                googleMap.setOnMapLoadedCallback(new GoogleMap.OnMapLoadedCallback() {
                    @Override
                    public void onMapLoaded() {
                        LatLng startPoint = new LatLng(position.get(0).getLatitude(), position.get(0).getLongitude());
                        googleMap.addMarker(new MarkerOptions().position(startPoint).title("start").icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_GREEN)));
                        mapBounds.include(startPoint);
                        LatLng endPoint = new LatLng(position.get(position.size() - 1).getLatitude(), position.get(position.size() - 1).getLongitude());
                        mapBounds.include(endPoint);
                        googleMap.addMarker(new MarkerOptions().position(endPoint).title("finish").icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_RED)));
                        googleMap.setPadding(15, 205, 10, 110);
                        googleMap.moveCamera(CameraUpdateFactory.newLatLngBounds(mapBounds.build(), 0));
                        //googleMap.animateCamera(CameraUpdateFactory.newLatLngBounds(mapBounds.build(), 10));
                        googleMap.moveCamera(CameraUpdateFactory.zoomOut());

                    }
                });
            }

        }
    }


 supportMapFragment.getMapAsync(new OnMapReadyCallback() {
            @Override
            public void onMapReady(GoogleMap googleMap) {
                if (Validator.isNotNull(googleMap)) {
                    googleMap.setMyLocationEnabled(false);
                    googleMap.clear();
                    googleMap.setOnMapClickListener(new GoogleMap.OnMapClickListener() {
                        @Override
                        public void onMapClick(LatLng latLng) {
                            if (activity.preferences.isSaveScreen()) {
                                facebook.setChecked(false);
                                twitter.setChecked(false);
                                activity.replaceFragment(new FullMapFragment(), null);
                            }
                            if (!activity.preferences.isSaveScreen()) {
                                activity.preferences.setHistoryScreen(true);
                                activity.replaceFragment(new FullMapFragment(), null);
                            }
                        }
                    });
                    if (gps) {
                        nonGpsSummary.setVisibility(View.GONE);
                        List<HistoryMap> historyMaps = new ArrayList<HistoryMap>();
                        if (Validator.isNotNull(activity.preferences.getUserHistory().getHistoryMaps())) {
                            historyMaps.addAll(Arrays.asList(activity.preferences.getUserHistory().getHistoryMaps()));
                        }
                        if (historyMaps.size() > 0) {
                            if (Validator.isNotNull(googleMap)) {
                              drawRouteIntoMap(historyMaps, googleMap);
                            }
                        } else {
                            mapFrame.setVisibility(View.GONE);
                        }
                    } else {
                        gpsSummary.setVisibility(View.GONE);
                    }
                }
            }
        });

这个问题与缩放特定路线谷歌地图有关.通过使用我得到mapbounds的正确路线,但我不知道为什么这个屏幕显示.

我没有收到cordinates 0.0我调试,api键也是正确的.

Answer 1

你打了moveCamera两次电话.第一个尝试移动相机,但第二个不等待第一个结束并执行缩小.

这可能不会一直发生,并且可能在不同设备上表现不同.

最好的选择是在你的上面设置一个填充CameraUpdateFactory.newLatLngBounds(mapBounds.build(), 0)而不是0