SuperMap iMobile for Android 地图添加POI兴趣点

作者：程溯

简介

Demo按类型往地图里添加POI兴趣点，并添加兴趣点的名称（name）与详细信息(detail)。地图上不同类型的POI兴趣点采用不同符号来表示。

示例数据

Data： mypoi.udb、mypoi.udd、mypoi.smwu

关键类型/成员

GeoStyle类

GeoPoint类

Environment类

WorkspaceConnectionInfo类

Map.setWorkspace()方法

MapControl.addGeometryAddedListener()方法

DatasetVector.query()方法

Recordset.edit()方法

Recordset.setGeometry()类

Recordset.setFieldValue()方法

Recordset.update()方法

使用步骤

(1) 将iMobile for android根目录的libs目录下的armeabi目录、com.supermap.data.jar、 com.supermap.mapping.jar拷贝至MyPoi工程目录的libs目录。 (2) elcipse导入MyPoi工程，如果需要，修改工程属性。 (3)需要将数据文件拷贝至android手机或模拟器的指定目录下。 (4) 编译运行程序，通过类型下拉列表选择POI类型，单击“添加”按钮，设置添加操作状态。 (5) 在地图上需要的位置单击，添加兴趣点，添加之后再单击“提交”按钮，提交操作。 在弹出的页面中填写名称和详细信息，单击“添加”按钮返回地图页面，地图窗口中显示了POI的符号和名称。

代码块

MainActivity：

import com.supermap.data.*; import com.supermap.mapping.*; import com.supermap.test.R; import android.app.Activity; import android.content.Intent; import android.os.Bundle; import android.util.Log; import android.view.MotionEvent; import android.view.View; import android.view.View.OnClickListener; import android.view.View.OnTouchListener; import android.widget.AdapterView; import android.widget.AdapterView.OnItemSelectedListener; import android.widget.ArrayAdapter; import android.widget.Button; import android.widget.Spinner; import android.widget.ZoomControls; public class MainActivity extends Activity implements OnTouchListener, GeometryAddedListener { private final int REQUEST_INFO = 1001; private MapControl mapControl; private Workspace workspace; private MapView mapView; private ZoomControls zoomControls; private Spinner spinnerPoiType; private Button addButton; private Button add; private DatasetVector datasetVector; private String strSymbolName = "银行"; private int nSymbolID = 907971; private GeometryEvent curEvent; private static final String[] types = { "银行", "医院", "小区", "停车场", "商场", "公园", "药店", "小区", "餐厅" }; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Environment.setLicensePath(getString(R.string.license_path)); Environment.setTemporaryPath(getString(R.string.temp_path)); Environment.setWebCacheDirectory(getString(R.string.cache_path)); Environment.initialization(this); setContentView(R.layout.main); openData(); initView(); } private void openData() { workspace = new Workspace(); WorkspaceConnectionInfo info = new WorkspaceConnectionInfo(); info.setServer(getString(R.string.data_path)); info.setType(WorkspaceType.SMWU); if (workspace.open(info)) { mapView = (MapView) findViewById(R.id.mapview); mapControl = mapView.getMapControl(); mapControl.getMap().setWorkspace(workspace); boolean isOpenMap = mapControl.getMap().open("map"); if (isOpenMap) { mapControl.addGeometryAddedListener(this); mapControl.getMap().refresh(); Layer layer = mapControl.getMap().getLayers().get(1); layer.setEditable(true); Dataset dataset = workspace.getDatasources().get(0) .getDatasets().get(0); if (dataset != null) { datasetVector = (DatasetVector) dataset; } } } } private void initView() { add = (Button) findViewById(R.id.add); zoomControls = (ZoomControls) findViewById(R.id.zoomControls1); zoomControls.setOnZoomOutClickListener(new OnClickListener() { public void onClick(View v) { mapControl.getMap().zoom(0.5); mapControl.getMap().refresh(); } }); zoomControls.setOnZoomInClickListener(new OnClickListener() { public void onClick(View v) { mapControl.getMap().zoom(2); mapControl.getMap().refresh(); } }); addButton = (Button) findViewById(R.id.btn_add); addButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { mapControl.setAction(Action.CREATEPOINT); } }); spinnerPoiType = (Spinner) findViewById(R.id.spn_poi_type); ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_spinner_item, types); adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item); spinnerPoiType.setAdapter(adapter); spinnerPoiType.setOnItemSelectedListener(new OnItemSelectedListener() { public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) { if (spinnerPoiType.getSelectedItem() != null) { strSymbolName = spinnerPoiType.getSelectedItem().toString(); } strSymbolName = spinnerPoiType.getSelectedItem().toString(); if (strSymbolName.equals("")) { return; } else { Symbol symbol = workspace.getResources().getMarkerLibrary() .findSymbol(strSymbolName); if (symbol != null) { nSymbolID = symbol.getID(); } else { nSymbolID = 0; } } } public void onNothingSelected(AdapterView<?> arg0) { } }); } public void add(View view) { mapControl.submit(); } @Override public void geometryAdded(GeometryEvent arg0) { curEvent = arg0; Intent intent = new Intent(getBaseContext(), InfoWnd.class); intent.putExtra(InfoWnd.Poi_Type, strSymbolName); startActivityForResult(intent, REQUEST_INFO); } public synchronized void onActivityResult(final int requestCode, int resultCode, final Intent data) { if (resultCode == Activity.RESULT_OK) { if (requestCode == REQUEST_INFO) { String strName = data.getStringExtra(InfoWnd.INFO_NAME); String strDetail = data.getStringExtra(InfoWnd.INFO_DETAIL); setPointInfo(strName, strDetail); } } else { deletePoint(); } mapControl.getMap().refresh(); mapControl.setAction(Action.PAN); } private void setPointInfo(String strName, String strDetail) { try { if (datasetVector == null) { return; } String strFilter = "SmID = " + String.valueOf(curEvent.getID()); Recordset recordset = null; recordset = datasetVector.query(strFilter, CursorType.DYNAMIC); Geometry geometry = recordset.getGeometry(); GeoPoint geoPoint = null; if (geometry != null) { geoPoint = (GeoPoint) geometry; GeoStyle geoStyle = new GeoStyle(); geoStyle.setMarkerSize(new Size2D(8, 8)); geoStyle.setMarkerSymbolID(nSymbolID); geoPoint.setStyle(geoStyle); } recordset.edit(); if (geoPoint != null) { recordset.setGeometry(geoPoint); } if (!strName.isEmpty()) { recordset.setFieldValue("name", strName); } if (!strDetail.isEmpty()) { recordset.setFieldValue("detail", strDetail); } recordset.update(); recordset.dispose(); mapControl.getMap().refresh(); } catch (Exception e) { Log.e("MyPoit", e.getMessage()); } } private void deletePoint() { if (datasetVector == null) { return; } String strFilter = "SmID = " + String.valueOf(curEvent.getID()); Recordset recordset = null; recordset = datasetVector.query(strFilter, CursorType.DYNAMIC); recordset.delete(); recordset.dispose(); } public boolean onTouch(View v, MotionEvent event) { mapControl.onMultiTouch(event); return true; } public void onDestroy() { workspace.close(); super.onDestroy(); } }

InfoWnd：

import com.supermap.test.R; import android.app.Activity; import android.os.Bundle; import android.view.View; import android.view.View.OnClickListener; import android.widget.*; public class InfoWnd extends Activity implements OnClickListener{ public static final String Poi_Type = "PoiType"; public static final String INFO_NAME = "Name"; public static final String INFO_DETAIL = "Detail"; private EditText etName; private EditText etDetail; private Button btnAdd; private Button btnCancel; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.infownd); etName = (EditText) findViewById(R.id.editName); etDetail = (EditText) findViewById(R.id.editDetail); btnAdd = (Button) findViewById(R.id.btn_add); btnAdd.setOnClickListener(this); btnCancel = (Button) findViewById(R.id.btn_cancel); btnCancel.setOnClickListener(this); etName = (EditText)findViewById(R.id.editName); etDetail = (EditText)findViewById(R.id.editDetail); String strName = getIntent().getStringExtra(Poi_Type); etName.setText(strName); } @Override protected void onDestroy() { super.onDestroy(); } public void onClick(View view) { if (view == btnAdd) { addPoint(); } else if (view == btnCancel) { finish(); } } private void addPoint() { String strName = etName.getText().toString(); String strDetail = etDetail.getText().toString(); getIntent().putExtra(INFO_NAME, strName); getIntent().putExtra(INFO_DETAIL, strDetail); setResult(RESULT_OK, getIntent()); finish(); } }

main.xml：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <RelativeLayout android:id="@+id/map_panel" android:layout_width="fill_parent" android:layout_height="wrap_content" > <com.supermap.mapping.MapView android:id="@+id/mapview" android:layout_width="fill_parent" android:layout_height="fill_parent" > </com.supermap.mapping.MapView> <ZoomControls android:id="@+id/zoomControls1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentBottom="true" android:layout_alignParentRight="true" /> </RelativeLayout> <RelativeLayout android:id="@+id/toolbar" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_margin="6dp" android:background="@drawable/toolbar_selector" android:paddingBottom="2dp" android:paddingLeft="6dp" android:paddingRight="6dp" android:paddingTop="6dp" > <TextView android:id="@+id/txt_poi_type" android:layout_width="wrap_content" android:layout_height="40dp" android:layout_alignParentLeft="true" android:gravity="center" android:text="@string/poitype" android:textColor="#ff000000" /> <Spinner android:id="@+id/spn_poi_type" android:layout_width="fill_parent" android:layout_height="40dp" android:layout_toLeftOf="@+id/btn_add" android:layout_toRightOf="@+id/txt_poi_type" /> <Button android:id="@+id/btn_add" android:layout_width="52dp" android:layout_height="40dp" android:layout_toLeftOf="@+id/add" android:text="@string/stradd" /> <Button android:id="@+id/add" android:layout_width="52dp" android:layout_height="40dp" android:layout_alignParentRight="true" android:onClick="add" android:text="提交" /> </RelativeLayout> </RelativeLayout>

infownd.xml：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <EditText android:id="@+id/editName" android:layout_width="fill_parent" android:layout_height="wrap_content" android:hint="@string/inputname" /> <EditText android:id="@+id/editDetail" android:layout_width="fill_parent" android:layout_height="100dp" android:hint="@string/inputdetail" android:scrollbars="vertical" /> <LinearLayout android:id="@+id/linearLayout1" android:layout_width="fill_parent" android:layout_height="wrap_content" > <Button android:id="@+id/btn_add" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/stradd" /> <Button android:id="@+id/btn_cancel" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/strcancel" /> </LinearLayout> </LinearLayout>

运行效果