@jvr: thanks for the tip, now the android marker icon appears
correctly using in HelloItemizedOverlay constructor:
/*
* file: "HelloItemizedOverlay.java"
*/
// Class constructor
public HelloItemizedOverlay(Drawable defaultMarker, Context context)
{
super(boundCenterBottom(defaultMarker));
mContext = context;
}
I wonder how the Drawable is positionned if no method is applied
(boundCenter or boundCenterBottom)... Because the drawable icon was'nt
visible..at all without passing it to the boundCenterBottom method.
For the main application, I've either tryied to pass
"this.getApplicationContext" and "this" as Context, but only the
following version works (this is still unclear for me...):
/*
* file: "HelloGoogleMaps.java"
*/
// ...
HelloItemizedOverlay itemizedoverlay = new
HelloItemizedOverlay(drawable,this);
// ...
@Vadid: thx for the feedback and sorry for misspelling your name...
Complete (tested) code below:
1 ) HelloGoogleMaps.java
-------------------------------------------------
package com.tests;
import java.util.List;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import com.google.android.maps.GeoPoint;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapView;
import com.google.android.maps.Overlay;
import com.google.android.maps.OverlayItem;
public class HelloGoogleMaps extends MapActivity
{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
MapView mapView = (MapView) findViewById(R.id.mapview);
mapView.setBuiltInZoomControls(true);
List<Overlay> mapOverlays = mapView.getOverlays();
Drawable drawable =
this.getResources().getDrawable(R.drawable.androidmarker);
HelloItemizedOverlay itemizedoverlay = new
HelloItemizedOverlay(drawable,this);
GeoPoint point = new GeoPoint(19240000,-99120000);
OverlayItem overlayitem = new OverlayItem(point, "Hola,
Mundo!", "I'm in Mexico City!");
GeoPoint point2 = new GeoPoint(35410000, 139460000);
OverlayItem overlayitem2 = new OverlayItem(point2, "Sekai,
konichiwa!", "I'm in Japan!");
itemizedoverlay.addOverlay(overlayitem);
itemizedoverlay.addOverlay(overlayitem2);
mapOverlays.add(itemizedoverlay);
}
@Override
protected boolean isRouteDisplayed()
{
return false;
}
}
2 ) HelloItemizedOverlay.java
-------------------------------------------------
package com.tests;
import java.util.ArrayList;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.content.Context;
import android.graphics.drawable.Drawable;
import com.google.android.maps.ItemizedOverlay;
import com.google.android.maps.OverlayItem;
public class HelloItemizedOverlay extends ItemizedOverlay
{
private ArrayList<OverlayItem> mOverlays = new
ArrayList<OverlayItem>();
private Context mContext;
public HelloItemizedOverlay(Drawable defaultMarker, Context context)
{
super(boundCenterBottom(defaultMarker));
mContext = context;
}
public void addOverlay(OverlayItem overlay)
{
mOverlays.add(overlay);
populate();
}
@Override
protected OverlayItem createItem(int i)
{
return mOverlays.get(i);
}
@Override
public int size()
{
return mOverlays.size();
}
@Override
protected boolean onTap(int index)
{
OverlayItem item = mOverlays.get(index);
AlertDialog.Builder dialog = new AlertDialog.Builder(mContext);
dialog.setTitle(item.getTitle());
dialog.setMessage(item.getSnippet());
dialog.show();
return true;
}
}
Thanks again guys
On 4 mar, 15:09, jvr <[email protected]> wrote:
> I had the same problem.
>
> i solved it by changing the following:
>
> in HelloGoogleMaps,java:
>
> HelloItemizedOverlay itemizedoverlay = new
> HelloItemizedOverlay(drawable);
>
> replace by:
>
> HelloItemizedOverlay itemizedoverlay = new
> HelloItemizedOverlay(drawable, this);
>
> and in HelloItemizedOverlay.java change the new constructor with the
> boundCenterBottom method to see the marker:
>
> public HelloItemizedOverlay(Drawable defaultMarker, Context
> context)
> {
> super(boundCenterBottom(defaultMarker));
> mContext = context;
> }
>
> On 24 feb, 16:23, yodaa <[email protected]> wrote:
>
> > Hi,
>
> > I followed the Google Map View tutorial located
> > at:http://developer.android.com/resources/tutorials/views/hello-mapview....
>
> > I'm running Eclipse Galileo (up to date) under Windows XP SP3.
>
> > The tutorial projet is runs within the emulator but clicking on one
> > of the drawable "androidmarker" positionned on the map leads to the
> > following Error message:
>
> > Sorry!
> > The applications HelloGoogleMaps (process com.tests) has stopped
> > unexpectedly. Please try again.
>
> > 1 ) File :AndroidManifest.xml :
> > ----------------------------------------------------
> > <?xml version="1.0" encoding="utf-8"?>
> > <manifest xmlns:android="http://schemas.android.com/apk/res/android";
> > package="com.tests"
> > android:versionCode="1"
> > android:versionName="1.0">
> > <application android:icon="@drawable/icon" android:label="@string/
> > app_name">
> > <uses-library android:name="com.google.android.maps" />
> > <activity android:name=".HelloGoogleMaps"
> > android:label="@string/app_name"
> >
> > android:theme="@android:style/Theme.NoTitleBar">
> > <intent-filter>
> > <action android:name="android.intent.action.MAIN" />
> > <category
> > android:name="android.intent.category.LAUNCHER" />
> > </intent-filter>
> > </activity>
> > </application>
> > <uses-permission android:name="android.permission.INTERNET" />
> > <uses-sdk android:minSdkVersion="7" />
> > </manifest>
> > 2 ) File : res/layout/main.xml :
> > ----------------------------------------------------
> > <?xml version="1.0" encoding="utf-8" ?>
> > <com.google.android.maps.MapView
> > xmlns:android="http://schemas.android.com/apk/res/android";
> > android:id="@+id/mapview"
> > android:layout_width="fill_parent"
> > android:layout_height="fill_parent"
> > android:clickable="true"
> > android:apiKey="myapikey..." />
>
> > 3 ) File : HelloGoogleMaps.java :
> > ----------------------------------------------------
> > package com.tests;
>
> > import java.util.List;
>
> > import android.graphics.drawable.Drawable;
> > import android.os.Bundle;
> > import com.google.android.maps.GeoPoint;
> > import com.google.android.maps.MapActivity;
> > import com.google.android.maps.MapView;
> > import com.google.android.maps.Overlay;
> > import com.google.android.maps.OverlayItem;
>
> > public class HelloGoogleMaps extends MapActivity
> > {
> > /** Called when the activity is first created. */
> > @Override
> > public void onCreate(Bundle savedInstanceState)
> > {
> > super.onCreate(savedInstanceState);
> > setContentView(R.layout.main);
> > MapView mapView = (MapView) findViewById(R.id.mapview);
> > mapView.setBuiltInZoomControls(true);
> > List<Overlay> mapOverlays = mapView.getOverlays();
> > Drawable drawable =
> > this.getResources().getDrawable(R.drawable.androidmarker);
> > HelloItemizedOverlay itemizedoverlay = new
> > HelloItemizedOverlay(drawable);
> > GeoPoint point = new GeoPoint(19240000,-99120000);
> > OverlayItem overlayitem = new OverlayItem(point, "Hola,
> > Mundo!", "I'm in Mexico City!");
> > itemizedoverlay.addOverlay(overlayitem);
> > mapOverlays.add(itemizedoverlay);
> > }
> > @Override
> > protected boolean isRouteDisplayed()
> > {
> > return false;
> > }
>
> > }
>
> > 4 ) File : HelloItemizedOverlay.java :
> > ----------------------------------------------------
> > package com.tests;
>
> > import java.util.ArrayList;
> > import android.app.AlertDialog;
> > import android.content.Context;
> > import android.graphics.drawable.Drawable;
> > import com.google.android.maps.ItemizedOverlay;
> > import com.google.android.maps.OverlayItem;
>
> > public class HelloItemizedOverlay extends ItemizedOverlay
> > {
> > private ArrayList<OverlayItem> mOverlays = new
> > ArrayList<OverlayItem>();
> > private Context mContext;
> > // First constructor
> > public HelloItemizedOverlay(Drawable defaultMarker)
> > {
> > super(boundCenterBottom(defaultMarker));
> > }
> > // Second constructor
> > public HelloItemizedOverlay(Drawable defaultMarker, Context context)
> > {
> > super(defaultMarker);
> > mContext = context;
> > }
> > public void addOverlay(OverlayItem overlay)
> > {
> > mOverlays.add(overlay);
> > populate();
> > }
> > @Override
> > protected OverlayItem createItem(int i)
> > {
> > return mOverlays.get(i);
> > }
> > @Override
> > public int size()
> > {
> > return mOverlays.size();
> > }
> > @Override
> > protected boolean onTap(int index)
> > {
> > OverlayItem item = mOverlays.get(index);
> > AlertDialog.Builder dialog = new AlertDialog.Builder(mContext);
> > dialog.setTitle(item.getTitle());
> > dialog.setMessage(item.getSnippet());
> > dialog.show();
> > return true;
> > }
>
> > }
>
> > I suspect something gone wrong within the "onTap" method of
> > "HelloItemizedOverlay"...
>
> > Could anyone give me a clue on that?
> > Thanks
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