1. Support the opening, closing, creation and saving of SuperMap GIS workspace files with extensions *.smwu and *.sxwu;
2. Support the opening, closing, creation, saving, etc. of SuperMap GIS data source files with the extension *.udb/*.udd/*.udbx;
3. Support opening and closing SuperMap GIS cache files with the extension *.sci as a file-based data source;
4. Support opening and closing SuperMap GIS image files with the extension *.sit as file-based data sources;
5. Support the opening, closing, query, modification, deletion, etc. of SuperMap GIS vector data sets. Among them, the SuperMap GIS vector data set includes: point data set, line data set, area data set, pure attribute data set (Tabular), text data set (Text), composite data set (CAD);
6. Support SuperMap GIS grid data set (grid) to open, close, create pyramids, etc. SuperMap GIS grid data sets belong to grid dataset types, such as elevation data sets (DEMs) and land-use maps;
7. Support the opening, closing and so on of SuperMap GIS image data sets (Image). SuperMap GIS image data set is used to describe image data and does not have attribute information, such as image maps (bmp, jpg), multi-band images and physical maps;
8. Support online or offline applications of SuperMapCloud, SuperMap iServer, MapWord, BaiduMap, Google Maps, OGC's WMTS service and other network map services.

The network map service is an independent data source type, which can be opened in the workspace, obtain the corresponding network map service data set, and add the data set to the map as a layer to display.

To open multiple online map services, you need to instantiate the connection parameters of multiple data sources, DatasourceConnectionInfo, and set the parameters of each online map service separately. A data source connection corresponds to an alias, and the alias in the data source connection parameters need to be inconsistent.

The mobile terminal cannot open the chart data directly, but you can first open the chart data in iDesktop, make a cache, and then publish it as a rest map service in iServer, open the rest map service on the mobile terminal, and load the map.

Publicly released network map services are usually encrypted and offset by data, such as Baidu map service; or use a specific projection coordinate system, such as Google map service; when such network map service is used as map superposition data, it is necessary to offset the superimposed data accordingly and convert it to the same projection coordinate system before it can be correctly superimposed.

The result is incorrect because the coordinate system is inconsistent. Use map.setdynamicprojection (true) to turn on the dynamic projection and then view it.

1. First confirm what coordinate system the sky map is used. If it is a sky map projected by Mercator, you need to add "&topleftcornerexchange=1" after the url, because the Mercator sky map is drawn from the upper left by default;
2. If it is still not displayed, delete the cache data in sdcard/SuperMap/data/ in the mobile phone directory and then reload it;
3. If it is still not displayed, it is recommended to change the network environment.

The map range after dynamic projection is no longer the original range of the sky map. You should get the data set of the sky map, then get the bounds of the sky map data set, and then use map.setviewbounds to set the corresponding display range.

Set the map HD display before adding or opening the map: map.setHighDefinitionMode(true).

The reason is that the symbol is a built-in symbol in the desktop software symbol library. If you want to display it on the mobile terminal, you need to import this built-in symbol in the format of picture symbols on iDesktop before you can open the display directly on the mobile terminal.

The common reason is that the displayed data set does not establish a spatial index. It is recommended to use SuperMap iDesktop to establish a spatial index for relevant data sets, which will greatly improve the display speed of lines and surfaces on mobile terminals.

Use mapControl.setMapParamChangedListener (MapParameterChangedListener listener) to set the map parameter change listener and listen in the callback event. Change of graph parameters.

Use the map parameter change monitoring method of the MapControl class setMapParamChangedListener (MapParameterChangedListener) to listen to the map scale and corner. Degree, range and size changes.

1. Close the Map object Map.Close();
2. Close the MapControl object MapControl.dispose();
3. Close Workspace objects Workspace.Close() and Workspace.dispose().

You can use LayerSettingImage.setTransparent(true) to set the transparent display of the background color of the image layer.

First, set the short-press or long-press method in the user's gesture recognizer to obtain the screen coordinate Point of the touch screen position through the setGestureDetector() under the MapControl class, and then use the map.pixelToMap() method to turn the screen point to the map. Point coordinates Point2D.

When Action does not roam for PAN, if you want to move the map, you need to press and hold the screen with two fingers and drag to move the map.

In the addNew(Geometry geometry, java.util.Map values) method, the Geometry parameter is empty, and the fields and field values that need to be passed in are stored in the Map object.

It can be updated in real time on Android and dynamically. Just clear the data set and the cache of the layer. The code is as follows:

Layer imageLayer=mapControl.getMap().getLayers().get("rest");

DatasetImage image=(DatasetImage) imageLayer.getDataset();

imageLayer.removeCache();

image.getMapCacheService().removeCache();

Mainly because at a small scale, the thematic label is larger than the size of the line and surface object, which is not displayed by default. ThemeLabel.setSmallGeometryLabeled(true) can also be displayed on a small scale.

There are two situations:

1. If you just don't show the tags of some small objects, you can set the themeLabel.setSmallGeometryLabeled(false) property.

2. If some specific label objects are not displayed, the following settings can be made:

QueryParameter parameter=new QueryParameter();

parameter.setAttributeFilter("SMID=5");

themeLabelLayer.setDisplayFilter(parameter);

mapcontrol.getMap().refresh();

The common reason is the lack of voice resources. Please copy the voice folder under the Resource folder in the product package to the assets folder in the project directory.

1. Models of which ids need to be checked are invisible;

2. Set whether the model queue of the specified id is visible through Layer3DOSGBFile.setObjectsVisible(int[] ids, boolean value).

1. You need to find out which ids are highlighted;

2. Set the display color of the model queue of the specified id through Layer3DOSGBFile.setObjectsColor(int[] ids, Color value).

Get all the property information of the last selected model through the Layer3DOSGBFile.getAllFieldValueOfLastSelectedObject() method.

Use the scene.pixelToGlobe (Point point, PixelToGlobeMode mode) method to convert the pixel coordinates of the screen into three-dimensional coordinates.

Get the device ID through environment.getDeviceID(). When obtaining it, you need to pay attention to: 1. The wifi permission of the device must be turned on; 2. TargetSDKVersion version is not more than 28.

Use RecycleLicenseManager.queryLicenseCount(String), and then get the quantity through the callback function.

This error can be checked from the following points:

1. Whether the .so file and jar package version of iMobile for Android referenced in the project are consistent;

2. In addition to referring to the .so file in iMobile for Android, the project also refers to the .so file of a third party, resulting in conflicts;

3. Engineering.

1. First, check whether the data and permissions used by the example program are placed in the location specified by the code.

2. Check whether the minimum permissions of the project are fully configured, click the permissions page in the AndroidManifest.xml node of the project, and add the following "Uses Permission":

  1)<uses-permission android:name="android.permission.INTERNET"/>

  2)<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION&quo T;/>

  3)<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/ ≫

  4)<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE&q Uot;/>

  5)<uses-permissionandroid:name="android.permission.CHANGE_WIFI_STATE"> ;

3. Whether to add the tools and platform-tools folder paths in android-sdk-windows to the environment variable.

4. When the amount of data used by SampleCode is large, it is necessary to check whether the capacity of SdCard is satisfied. If not, the capacity of SdCard should be expanded first.

5. Sometimes SampleCode does not run, you can try to uninstall the sample program first and run it again to prevent conflicts caused by incomplete uninstallation of SampleCode before.