Java tutorial
/* Copyright 2015 Esri * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * */ package com.arcgis.android.samples.geometrysample; import android.graphics.Color; import android.os.Bundle; import android.support.v4.app.Fragment; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.Button; import android.widget.CheckBox; import android.widget.RadioButton; import android.widget.RadioGroup; import android.widget.RadioGroup.OnCheckedChangeListener; import android.widget.Toast; import com.esri.android.map.GraphicsLayer; import com.esri.android.map.MapView; import com.esri.android.map.ags.ArcGISTiledMapServiceLayer; import com.esri.android.map.event.OnSingleTapListener; import com.esri.core.geometry.Geometry; import com.esri.core.geometry.GeometryEngine; import com.esri.core.geometry.MultiPath; import com.esri.core.geometry.MultiPoint; import com.esri.core.geometry.Point; import com.esri.core.geometry.Polygon; import com.esri.core.geometry.Polyline; import com.esri.core.geometry.SpatialReference; public class SpatialRelationshipsFragment extends Fragment { final static String ARG_POSITION = "position"; int mCurrentPosition = -1; MapView mapView; ArcGISTiledMapServiceLayer tileLayer = null; GraphicsLayer firstGeomLayer = null; GraphicsLayer secondGeomLayer = null; GraphicsLayer resultGeomLayer = null; Button addsecGeometry; Button resetButton; RadioGroup operationType = null; RadioButton point; RadioButton line; RadioButton polygon; int geomNumWorkon = 1; Geometry firstGeometry = null; Geometry secondGeometry = null; boolean isStartPointSet1 = false; boolean isStartPointSet2 = false; volatile int countTap = 0; private String TAG = SpatialRelationshipsFragment.class.getSimpleName(); GEOMETRY_TYPE firstGeoType = GEOMETRY_TYPE.point; GEOMETRY_TYPE secondGeoType = GEOMETRY_TYPE.point; boolean isSketchingEnabled = true; int plusButtonCount = 0; CheckBox within = null; CheckBox touches = null; CheckBox equals = null; CheckBox crosses = null; CheckBox contains = null; enum GEOMETRY_TYPE { point, multi_points, polyline, polygon } SpatialReference spatialRef = SpatialReference.create(102100); /** * Create a new instance of SpatialRelationshipsFragment, initialized to * show the text at 'index'. */ public static SpatialRelationshipsFragment newInstance(int index) { SpatialRelationshipsFragment f = new SpatialRelationshipsFragment(); // Supply index input as an argument. Bundle args = new Bundle(); args.putInt("index", index); f.setArguments(args); return f; } public int getShownIndex() { return getArguments().getInt("index", 0); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // If activity recreated (such as from screen rotate), restore // the previous article selection set by onSaveInstanceState(). // This is primarily necessary when in the two-pane layout. if (savedInstanceState != null) { mCurrentPosition = savedInstanceState.getInt(ARG_POSITION); } // Inflate the layout for this fragment return inflater.inflate(R.layout.spatialrelationships, container, false); // return inflater.inflate(R.layout.article_view, container, false); } @Override public void onStart() { super.onStart(); // During startup, check if there are arguments passed to the fragment. // onStart is a good place to do this because the layout has already // been // applied to the fragment at this point so we can safely call the // method // below that sets the article text. Bundle args = getArguments(); if (args != null) { // Set article based on argument passed in updateArticleView(args.getInt(ARG_POSITION)); } else if (mCurrentPosition != -1) { // Set article based on saved instance state defined during // onCreateView updateArticleView(mCurrentPosition); } } public void updateArticleView(int position) { mapView = (MapView) getActivity().findViewById(R.id.map); mapView.enableWrapAround(true); // Add Tile layer to the MapView String tileURL = getActivity().getResources().getString(R.string.tileServiceURL); ArcGISTiledMapServiceLayer tilelayer = new ArcGISTiledMapServiceLayer(tileURL); mapView.addLayer(tilelayer); firstGeomLayer = new GraphicsLayer(); mapView.addLayer(firstGeomLayer); secondGeomLayer = new GraphicsLayer(); mapView.addLayer(secondGeomLayer); resultGeomLayer = new GraphicsLayer(); mapView.addLayer(resultGeomLayer); /** * Single tap listener for MapView *************** */ mapView.setOnSingleTapListener(new OnSingleTapListener() { private static final long serialVersionUID = 1L; public void onSingleTap(float x, float y) { if (isSketchingEnabled) { try { singleTapAct(x, y); } catch (Exception ex) { String err = ex.getMessage(); Log.d(TAG, err); } } } }); // Set the message in the toast Toast.makeText(getActivity(), "Draw two intersecting polygons by tapping on the map", Toast.LENGTH_LONG) .show(); // set the behavior of all buttons setButtons(); mCurrentPosition = position; } /** * SET BUTTONS ************************** */ void setButtons() { point = (RadioButton) getActivity().findViewById(R.id.point); line = (RadioButton) getActivity().findViewById(R.id.line); polygon = (RadioButton) getActivity().findViewById(R.id.polygon); within = (CheckBox) getActivity().findViewById(R.id.within); touches = (CheckBox) getActivity().findViewById(R.id.touches); equals = (CheckBox) getActivity().findViewById(R.id.equals); crosses = (CheckBox) getActivity().findViewById(R.id.crosses); contains = (CheckBox) getActivity().findViewById(R.id.contains); operationType = (RadioGroup) getActivity().findViewById(R.id.geometrytype); operationType.setOnCheckedChangeListener(new OnCheckedChangeListener() { @Override public void onCheckedChanged(RadioGroup group, int checkedId) { switch (checkedId) { case R.id.point: if (plusButtonCount == 0) { firstGeoType = GEOMETRY_TYPE.point; secondGeoType = GEOMETRY_TYPE.point; } else if (plusButtonCount == 1) { secondGeoType = GEOMETRY_TYPE.point; } break; case R.id.line: if (plusButtonCount == 0) { firstGeoType = GEOMETRY_TYPE.polyline; secondGeoType = GEOMETRY_TYPE.polyline; } else if (plusButtonCount == 1) { secondGeoType = GEOMETRY_TYPE.polyline; } break; case R.id.polygon: if (plusButtonCount == 0) { firstGeoType = GEOMETRY_TYPE.polygon; secondGeoType = GEOMETRY_TYPE.polygon; } else if (plusButtonCount == 1) { secondGeoType = GEOMETRY_TYPE.polygon; } break; } } }); resetButton = (Button) getActivity().findViewById(R.id.reset); resetButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { firstGeometry = null; secondGeometry = null; firstGeomLayer.removeAll(); secondGeomLayer.removeAll(); resultGeomLayer.removeAll(); addsecGeometry.setEnabled(true); point.setChecked(true); line.setChecked(false); polygon.setChecked(false); firstGeoType = GEOMETRY_TYPE.point; secondGeoType = GEOMETRY_TYPE.point; within.setChecked(false); touches.setChecked(false); equals.setChecked(false); crosses.setChecked(false); contains.setChecked(false); geomNumWorkon = 1; plusButtonCount = 0; isSketchingEnabled = true; } }); addsecGeometry = (Button) getActivity().findViewById(R.id.addsecgeometry); addsecGeometry.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { // first geometry is done start second geometry plusButtonCount++; if (plusButtonCount < 3) { geomNumWorkon = 2; if (plusButtonCount == 2) { doOperation(); } } } }); } void doOperation() { if (plusButtonCount == 2) { addsecGeometry.setEnabled(false); operationType.setEnabled(false); isSketchingEnabled = false; plusButtonCount++; } if (firstGeometry != null && secondGeometry != null) { // Set the checkboxes if the relationship is true within.setChecked(GeometryEngine.within(firstGeometry, secondGeometry, mapView.getSpatialReference())); touches.setChecked( GeometryEngine.touches(firstGeometry, secondGeometry, mapView.getSpatialReference())); equals.setChecked(GeometryEngine.equals(firstGeometry, secondGeometry, mapView.getSpatialReference())); crosses.setChecked( GeometryEngine.crosses(firstGeometry, secondGeometry, mapView.getSpatialReference())); contains.setChecked( GeometryEngine.contains(firstGeometry, secondGeometry, mapView.getSpatialReference())); } } void displayResultGeometry(Geometry geometry) throws Exception { if (geometry == null) return; Geometry[] geometries = new Geometry[1]; geometries[0] = geometry; int red = Color.RED; resultGeomLayer.removeAll(); GeometryUtil.highlightGeometriesWithColor(geometries, resultGeomLayer, red); } void singleTapAct(float x, float y) throws Exception { countTap++; Point point = mapView.toMapPoint(x, y); Log.d("sigle tap on screen:", "[" + x + "," + y + "]"); Log.d("sigle tap on map:", "[" + point.getX() + "," + point.getY() + "]"); if (geomNumWorkon == 1) { if (firstGeometry == null) { if (firstGeoType == GEOMETRY_TYPE.point) { firstGeometry = point; } else if (firstGeoType == GEOMETRY_TYPE.multi_points) { firstGeometry = new MultiPoint(); ((MultiPoint) firstGeometry).add(point); } else if (firstGeoType == GEOMETRY_TYPE.polygon) { firstGeometry = new Polygon(); ((MultiPath) firstGeometry).startPath(point); isStartPointSet1 = true; Log.d("geometry step " + countTap, GeometryEngine.geometryToJson(mapView.getSpatialReference(), firstGeometry)); } else if (firstGeoType == GEOMETRY_TYPE.polyline) { isStartPointSet1 = true; firstGeometry = new Polyline(); ((MultiPath) firstGeometry).startPath(point); } } } else if (geomNumWorkon == 2) { if (secondGeometry == null) { if (secondGeoType == GEOMETRY_TYPE.point) { secondGeometry = point; } else if (secondGeoType == GEOMETRY_TYPE.multi_points) { secondGeometry = new MultiPoint(); ((MultiPoint) secondGeometry).add(point); } else if (secondGeoType == GEOMETRY_TYPE.polygon) { secondGeometry = new Polygon(); ((MultiPath) secondGeometry).startPath(point); isStartPointSet2 = true; } else if (secondGeoType == GEOMETRY_TYPE.polyline) { isStartPointSet2 = true; secondGeometry = new Polyline(); ((MultiPath) secondGeometry).startPath(point); } } } if (geomNumWorkon == 1) { if (firstGeoType == null) return; // int blue = Color.BLUE; int color1 = Color.BLUE; drawGeomOnGraphicLyr(firstGeometry, firstGeomLayer, point, firstGeoType, color1, isStartPointSet1); Log.d("geometry step " + countTap, GeometryEngine.geometryToJson(mapView.getSpatialReference(), firstGeometry)); } else if (geomNumWorkon == 2) { if (secondGeoType == null) return; int green = Color.GREEN; int color2 = Color.argb(100, Color.red(green), Color.green(green), Color.blue(green)); drawGeomOnGraphicLyr(secondGeometry, secondGeomLayer, point, secondGeoType, color2, isStartPointSet2); } } void drawGeomOnGraphicLyr(Geometry geometryToDraw, GraphicsLayer glayer, Point point, GEOMETRY_TYPE geoTypeToDraw, int color, boolean startPointSet) { if (geoTypeToDraw == GEOMETRY_TYPE.point) { geometryToDraw = point; } else if (geoTypeToDraw == GEOMETRY_TYPE.multi_points) { ((MultiPoint) geometryToDraw).add(point); } else { if (startPointSet) { if (geoTypeToDraw == GEOMETRY_TYPE.polygon) { ((Polygon) geometryToDraw).lineTo(point); } else if (geoTypeToDraw == GEOMETRY_TYPE.polyline) { ((Polyline) geometryToDraw).lineTo(point); } } } Geometry[] geoms = new Geometry[1]; geoms[0] = geometryToDraw; try { glayer.removeAll(); GeometryUtil.highlightGeometriesWithColor(geoms, glayer, color); } catch (Exception e) { e.printStackTrace(); } } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); // Save the current article selection in case we need to recreate the // fragment outState.putInt(ARG_POSITION, mCurrentPosition); } }