Re: [android-developers] Re: Toast - I can't get it to work in Eclipse...

2009-11-04 Thread Mark Murphy 
furby wrote:
 To be sure that you have some idea of what I am talking about, here is
 the code for the entire class :
 
 import java.util.ArrayList;
 
 import android.graphics.drawable.Drawable;
 import android.widget.Toast;
 
 import com.google.android.maps.ItemizedOverlay;
 import com.google.android.maps.OverlayItem;
 
 public class HelloItemizedOverlay extends ItemizedOverlay {
   private ArrayListOverlayItem mOverlays = new ArrayListOverlayItem
 ();
 
   public HelloItemizedOverlay(Drawable defaultMarker) {
   super(boundCenterBottom(defaultMarker));
   }
 
   @Override
   protected OverlayItem createItem(int i) {
 return mOverlays.get(i);
   }
 
 
   @Override
   public int size() {
   return mOverlays.size();
   }
 
   public void addOverlay(OverlayItem overlay) {
   mOverlays.add(overlay);
   populate();
   }
 
   protected boolean onTap(int index) {
   Toast.makeText(HelloItemizedOverlay.this, TEST,
 Toast.LENGTH_SHORT).show();
 return super.onTap(index);
}
 }

The first parameter to makeText() needs to be a Context, such as an
Activity.

-- 
Mark Murphy (a Commons Guy)
http://commonsware.com | http://twitter.com/commonsguy

_Android Programming Tutorials_ Version 1.0 Available!

-- 
You received this message because you are subscribed to the Google
Groups Android Developers group.
To post to this group, send email to android-developers@googlegroups.com
To unsubscribe from this group, send email to
android-developers+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en

Re: [android-developers] Re: Toast - I can't get it to work in Eclipse...

2009-11-04 Thread Mark Murphy 
furby wrote:
 Hmmm Am I putting the onTap handler in the wrong place? I thought
 that it would go in the overlay handler

Your onTap() is in the correct place. However, HelloItemizedOverlay is
not a Context, and so it cannot be used as the first parameter to
makeText().

Either make HelloItemizedOverlay an inner class of your MapActivity, or
pass the MapActivity as a parameter to the HelloItemizedOverlay
constructor, or something, then use that object as the first parameter
to makeText().

-- 
Mark Murphy (a Commons Guy)
http://commonsware.com | http://twitter.com/commonsguy

Android Consulting/App Development: http://commonsware.com/consulting

-- 
You received this message because you are subscribed to the Google
Groups Android Developers group.
To post to this group, send email to android-developers@googlegroups.com
To unsubscribe from this group, send email to
android-developers+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en

Re: [android-developers] Re: Toast - I can't get it to work in Eclipse...

2009-11-04 Thread Mark Murphy 
furby wrote:
 Perhaps I am going about this the wrong way... it seems like a lot of
 shifting of code around to get a simple message to display in google
 maps.

Not really.

 Let me rephrase the question : Is there a simple way to get the two
 String parameters to display (That are sent to the OverlayItem class)
 when a point is clicked on? I would assume that google maps woudl have
 somethign built in (I am used to using maps in Javascript where it's
 pretty much just a onClick event handler...).

You are using the simple way. You just have the wrong type for the first
parameter to the makeText() method. It would similarly fail if you tried
passing an integer for the first parameter, or a boolean.

You can see an example of using a Toast from an ItemizedOverlay in one
of my book examples. I don't have these examples up on github just yet
(probably this weekend), so I can't directly link to it. For now, visit:

http://commonsware.com/Android/

Scroll down and click on the Source Code link opposite the table of
contents. In the ZIP file, you will see Maps/NooYawk/. Look for the
onTap() implementation there.

Since my ItemizedOverlay is an inner class of my MapActivity, I already
have access to a suitable Context to provide to makeText().

-- 
Mark Murphy (a Commons Guy)
http://commonsware.com | http://twitter.com/commonsguy

Android Development Wiki: http://wiki.andmob.org

-- 
You received this message because you are subscribed to the Google
Groups Android Developers group.
To post to this group, send email to android-developers@googlegroups.com
To unsubscribe from this group, send email to
android-developers+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en