Googleマップでは、ユーザーの現在地にピンをドロップしていますが、ユーザーがそのピンを手動でドラッグして地図上の任意の場所にドロップできるという別の機能をユーザーに提供したいと思います。また、ユーザーがピンを手動でドロップするまでに、受け取ることができます。ユーザーがそのピンをドロップした位置の経度と緯度を取得するコールバック。
あなたが私にいくつかの例を与えることができれば、それは非常に高く評価されるでしょう。
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5069 次
3 に答える
3
ここ数日で、あなたが説明したこれらの機能を実装する方法をようやく見つけました。この質問には答えがなかったので、あなたが尋ねてから長い時間が経ち、別の答えが見つかるかもしれませんが、見つけたものを投稿することにしましたあなた自身。
そこで、このgitのコードを使用しました。私はそのように試していないというコールバックを除いて、あなたが望むことをすべて行うことができました。ボタンを押した後、ピンの位置を取得しています。
投稿する必要はありませんAndroidManifest。場所の表示に問題はないと読んだので、必要な権限は問題ありませんでした。
必要な唯一のことは、という名前のアクティビティを作成することでしたMapsActivity。これはその全内容です：
import com.google.android.gms.maps.*;
import com.google.android.gms.maps.model.*;
import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageButton;
import android.widget.Toast;
import common.logger.Log;
public class MapsActivity extends Activity implements
OnMapReadyCallback, GoogleMap.OnInfoWindowClickListener,
GoogleMap.OnMarkerDragListener {
LatLng position = new LatLng(34.6767, 33.04455);
final Marker marker_final = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
MapFragment mapFragment = (MapFragment) getFragmentManager()
.findFragmentById(R.id.
map);
mapFragment.getMapAsync(this);
ImageButton returnback = (ImageButton)findViewById(R.id.returnback);
returnback.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Toast.makeText(MapsActivity.this.getApplicationContext(), position.latitude + ":" + position.longitude, Toast.LENGTH_LONG).show();
}
});
}
@Override
public void onMapReady(GoogleMap map) {
map.setMyLocationEnabled(true);
map.moveCamera(CameraUpdateFactory.newLatLngZoom(position, 13));
CameraUpdate zoom = CameraUpdateFactory.zoomTo(15);
map.animateCamera(zoom);
map.addMarker(new MarkerOptions()
.title("Shop")
.snippet("Is this the right location?")
.position(position))
.setDraggable(true);
// map.setInfoWindowAdapter(new PopupAdapter(getLayoutInflater()));
map.setOnInfoWindowClickListener(this);
map.setOnMarkerDragListener(this);
}
@Override
public void onInfoWindowClick(Marker marker) {
Toast.makeText(this, marker.getTitle(), Toast.LENGTH_LONG).show();
}
@Override
public void onMarkerDragStart(Marker marker) {
LatLng position0 = marker.getPosition();
Log.d(getClass().getSimpleName(), String.format("Drag from %f:%f",
position0.latitude,
position0.longitude));
}
@Override
public void onMarkerDrag(Marker marker) {
LatLng position0 = marker.getPosition();
Log.d(getClass().getSimpleName(),
String.format("Dragging to %f:%f", position0.latitude,
position0.longitude));
}
@Override
public void onMarkerDragEnd(Marker marker) {
position = marker.getPosition();
Log.d(getClass().getSimpleName(), String.format("Dragged to %f:%f",
position.latitude,
position.longitude));
}
}
これが私のactivity_maps.xmlレイアウトです (編集テキストも追加しましたが、使用する必要はありません):
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:descendantFocusability="beforeDescendants"
android:focusableInTouchMode="true"
android:background="#ecf0f1">
<ScrollView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/scrollView3" >
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:weightSum="1"
android:layout_height="wrap_content">
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_weight="0.9"
android:id="@+id/locationsearch" />
<ImageButton
android:layout_width="40dp"
android:layout_height="40dp"
android:id="@+id/search"
android:layout_weight="0.1"
android:background="@drawable/search" />
</LinearLayout>
<fragment xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/map"
android:layout_width="match_parent"
android:layout_height="405dp"
android:name="com.google.android.gms.maps.MapFragment"/>
<ImageButton
android:layout_width="60dp"
android:layout_height="60dp"
android:id="@+id/returnback"
android:background="@drawable/less" />
</LinearLayout>
</ScrollView>
</LinearLayout>
于 2015-02-08T01:28:03.447 に答える
0
こんにちは、以下のコードを使用してください。
ドロップされたピンの位置が得られます。
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.ItemizedOverlay;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
import com.google.android.maps.MyLocationOverlay;
import com.google.android.maps.OverlayItem;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.graphics.Canvas;
import android.graphics.Point;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.location.Address;
import android.location.Criteria;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.MotionEvent;
import android.view.View;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.Toast;
public class rescue extends MapActivity {
private LocationManager myLocationManager;
private LocationListener myLocationListener;
private MapView myMapView;
private MapController myMapController;
private String provider;
private MyLocationOverlay me=null;
private int defaultLat =(int)(51.51216124955517);
private int defaultLong =(int)(-0.1373291015625);
private GeoPoint defaultGeoPint = new GeoPoint(defaultLat,defaultLong);
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.rescue);
setCurrentLocation();
}
@Override
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}
private void setCurrentLocation()
{
myMapView = (MapView)findViewById(R.id.rescueMapView);
myMapView.setTraffic(true);
///myMapView.setBuiltInZoomControls(true);
myMapController = myMapView.getController();
myMapController.setZoom(16); //Fixed Zoom Level
myLocationManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
myLocationListener = new MyLocationListener();
try
{
Criteria criteria = new Criteria();
provider = myLocationManager.getBestProvider(criteria, false);
Location location = myLocationManager.getLastKnownLocation(provider);
myLocationManager.requestLocationUpdates(
provider,
0,
0,
myLocationListener);
Location lastLocation = myLocationManager.getLastKnownLocation(provider);
if(lastLocation != null)
{
int lastLocLat =(int)(lastLocation.getLatitude()*1000000);
int lastLocLong =(int)(lastLocation.getLongitude()*1000000);
//Get the current location in start-up
GeoPoint initGeoPoint = new GeoPoint(lastLocLat,lastLocLong);
CenterLocatio(initGeoPoint);
}
else
{
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Location Services Disabled")
.setMessage("The location service on the device are disabled, your location is not able to be found, please call AXA uding the button below to be rescued")
.setCancelable(false)
.setPositiveButton("Drop pin", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
//do things
CenterLocatio(defaultGeoPint);
}
});
builder.create().show();
}
}
catch (Exception e)
{
// TODO: handle exception
Context context = getApplicationContext();
String toasttext = e.getMessage();
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context, toasttext, duration);
toast.show();
}
}
private void CenterLocatio(GeoPoint centerGeoPoint)
{
myMapView.getOverlays().clear();
myMapController.animateTo(centerGeoPoint);
Drawable marker=getResources().getDrawable(R.drawable.marker);
marker.setBounds(0, 0, marker.getIntrinsicWidth(),
marker.getIntrinsicHeight());
int lat = centerGeoPoint.getLatitudeE6();
int lon = centerGeoPoint.getLongitudeE6();
double lat1 = centerGeoPoint.getLatitudeE6()/1E6;
double lon1 = centerGeoPoint.getLongitudeE6()/1E6;
ArrayList<Double> passing = new ArrayList<Double>();
passing.add(lat1);
passing.add(lon1);
Context context = getApplicationContext();
ReverseGeocodeLookupTask task = new ReverseGeocodeLookupTask();
task.applicationContext = context;
task.activityContext = rescue.this;
task.execute(passing);
myMapView.getOverlays().add(new SitesOverlay(marker,lat, lon ));
me=new MyLocationOverlay(this, myMapView);
myMapView.getOverlays().add(me);
};
private class MyLocationListener implements LocationListener{
@Override
public void onLocationChanged(Location argLocation) {
// TODO Auto-generated method stub
GeoPoint myGeoPoint = new GeoPoint(
(int)(argLocation.getLatitude()*1000000),
(int)(argLocation.getLongitude()*1000000));
//CenterLocatio(myGeoPoint);
}
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
public void onStatusChanged(String provider,
int status, Bundle extras) {
// TODO Auto-generated method stub
}
}
private GeoPoint getPoint(int lat, int lon) {
return(new GeoPoint(lat, lon));
/*
return(new GeoPoint((int)(lat*1000000.0),
(int)(lon*1000000.0)));
*/
}
private class SitesOverlay extends ItemizedOverlay<OverlayItem> {
private List<OverlayItem> items=new ArrayList<OverlayItem>();
private Drawable marker=null;
private OverlayItem inDrag=null;
private ImageView dragImage=null;
private int xDragImageOffset=0;
private int yDragImageOffset=0;
private int xDragTouchOffset=0;
private int yDragTouchOffset=0;
public SitesOverlay(Drawable marker, int lat, int longitude) {
super(marker);
this.marker=marker;
dragImage=(ImageView)findViewById(R.id.drag);
xDragImageOffset=dragImage.getDrawable().getIntrinsicWidth()/2;
yDragImageOffset=dragImage.getDrawable().getIntrinsicHeight();
items.add(new OverlayItem(getPoint(lat,
longitude),
"UN", "United Nations"));
/*
items.add(new OverlayItem(getPoint(40.76866299974387,
-73.98268461227417),
"Lincoln Center",
"Home of Jazz at Lincoln Center"));
*/
populate();
}
@Override
protected OverlayItem createItem(int i) {
return(items.get(i));
}
@Override
public void draw(Canvas canvas, MapView mapView,
boolean shadow) {
super.draw(canvas, mapView, shadow);
boundCenterBottom(marker);
}
@Override
public int size() {
return(items.size());
}
@Override
public boolean onTouchEvent(MotionEvent event, MapView mapView) {
final int action=event.getAction();
final int x=(int)event.getX();
final int y=(int)event.getY();
boolean result=false;
if (action==MotionEvent.ACTION_DOWN) {
for (OverlayItem item : items) {
Point p=new Point(0,0);
myMapView.getProjection().toPixels(item.getPoint(), p);
if (hitTest(item, marker, x-p.x, y-p.y)) {
result=true;
inDrag=item;
items.remove(inDrag);
populate();
xDragTouchOffset=0;
yDragTouchOffset=0;
setDragImagePosition(p.x, p.y);
dragImage.setVisibility(View.VISIBLE);
xDragTouchOffset=x-p.x;
yDragTouchOffset=y-p.y;
break;
}
}
}
else if (action==MotionEvent.ACTION_MOVE && inDrag!=null) {
setDragImagePosition(x, y);
result=true;
}
else if (action==MotionEvent.ACTION_UP && inDrag!=null) {
dragImage.setVisibility(View.GONE);
GeoPoint pt=myMapView.getProjection().fromPixels(x-xDragTouchOffset,
y-yDragTouchOffset);
String title = inDrag.getTitle();
OverlayItem toDrop=new OverlayItem(pt, title,
inDrag.getSnippet());
items.add(toDrop);
populate();
double lat = pt.getLatitudeE6()/1E6;
double lon = pt.getLongitudeE6()/1E6;
ArrayList<Double> passing = new ArrayList<Double>();
passing.add(lat);
passing.add(lon);
Context context = getApplicationContext();
ReverseGeocodeLookupTask task = new ReverseGeocodeLookupTask();
task.applicationContext = context;
task.activityContext = rescue.this;
task.execute(passing);
//CenterLocatio(pt);
inDrag=null;
result=true;
}
return(result || super.onTouchEvent(event, mapView));
}
private void setDragImagePosition(int x, int y) {
RelativeLayout.LayoutParams lp=
(RelativeLayout.LayoutParams)dragImage.getLayoutParams();
lp.setMargins(x-xDragImageOffset-xDragTouchOffset,
y-yDragImageOffset-yDragTouchOffset, 0, 0);
dragImage.setLayoutParams(lp);
}
}
public class ReverseGeocodeLookupTask extends AsyncTask <ArrayList<Double>, Void, String>
{
private ProgressDialog dialog;
protected Context applicationContext;
protected Context activityContext;
@Override
protected void onPreExecute()
{
this.dialog = ProgressDialog.show(activityContext, "Please wait",
"Requesting location", true);
}
protected String doInBackground(ArrayList<Double>... params)
{
String foundAddress = "";
String localityName = "";
ArrayList<Double> passed = params[0];
double lat = passed.get(0);
double lon = passed.get(1);
try
{
List<Address> addresses = new Geocoder(applicationContext,Locale.getDefault()).getFromLocation(lat,lon, 1);
if (addresses.size() > 0)
{
String addressLine = "";
for(Integer i = 0; i < addresses.get(0).getMaxAddressLineIndex(); i++)
{
if(!addressLine.equals(""))
{
addressLine+= ", ";
}
addressLine+= addresses.get(0).getAddressLine(i);
}
if(addressLine!="")
{
foundAddress+= addressLine;
}
}
}
catch (Exception e) {
// TODO: handle exception
}
finally
{
}
return foundAddress;
}
@Override
protected void onPostExecute(String result)
{
this.dialog.cancel();
showToast(result);
}
}
public void showToast(String message)
{
Context context = getApplicationContext();
String toasttext = message;
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context, toasttext, duration);
toast.show();
}
}
マニフェスト ファイルで以下の権限を使用する
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<uses-library android:name="com.google.android.maps" />
<activity
android:label="@string/app_name"
android:name=".DragAndDropPinActivity" >
</activity>
<activity
android:label="@string/app_name"
android:name=".rescue" >
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
于 2013-01-08T06:38:43.583 に答える