How to place an image(+sign) at the center of map?

by Jitendra Kumar » Thu Mar 06, 2008 12:59 pm

by plusminus » Fri Mar 07, 2008 12:29 am

Hello Jitendra Kumar,

what about using less abbrevs.

You can easily do this by using a RelativeLayout, like this (it centers an image in the bottom over the mapview).

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Using xml Syntax Highlighting

1. <?xml version="1.0" encoding="utf-8"?>
2. <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
3.         android:layout_width="fill_parent"
4.         android:layout_height="fill_parent">
5.         <view class="com.google.android.maps.MapView"
6.                 android:id="@+id/map_map"
7.                 android:layout_width="fill_parent"
8.                 android:layout_height="fill_parent"/>
9.         <ImageView
10.                 android:id="@+id/iv_map_logo_googlemaps"
11.                 android:layout_alignParentBottom="true"
12.                 android:layout_width="fill_parent"
13.                 android:layout_height="wrap_content"
14.                 android:scaleType="fitCenter"
15.                 android:gravity="center_horizontal"
16.                 android:src="@drawable/logo_googlemaps"
17.                 android:padding="5px"/>
18. </RelativeLayout>

Parsed in 0.003 seconds, using GeSHi 1.0.8.4

Regards,
plusminus

| Android Development Community / Tutorials

by plusminus » Fri Mar 07, 2008 12:31 am

Just realized you want to display the user-position, like this:

have a look here: viewtopic.php?t=92

Regards,
plusminus

| Android Development Community / Tutorials

by Jitendra Kumar » Fri Mar 07, 2008 6:03 am

by plusminus » Fri Mar 07, 2008 2:34 pm

Hello Jitendra,

you want the icon represent the GPS-location of the device, or just a dumb icon in the middle

Regards,
plusminus

PS: Please use no more abbreviations, because others maybe won't find your problems via search!

| Android Development Community / Tutorials

by Jitendra Kumar » Mon Mar 10, 2008 5:41 am

by plusminus » Mon Mar 10, 2008 3:06 pm

Hello Jutendra,

I am assuming you don't need it clickable. Like a crosshair
So try this:

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Using java Syntax Highlighting

1. this.myMapView.createOverlayController().add(new MyOverlay(this), true);

Parsed in 0.030 seconds, using GeSHi 1.0.8.4

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Using java Syntax Highlighting

1.         class MyOverlay extends Overlay{
2.  
3.                 Bitmap crossHair;
4.  
5.                 Paint p;
6.  
7.                
8.  
9.                 MyOverlay(Context ctx){
10.  
11.                         this.crossHair = BitmapFactory.decodeResource(ctx.getResources(), R.drawable.crosshair);
12.  
13.                         this.p = new Paint();
14.  
15.                 }
16.  
17.                
18.  
19.                 public void draw(Canvas canvas, PixelCalculator pxC, boolean b) {
20.  
21.                         int centerX = canvas.getBitmapWidth() / 2; // Not 100% sure if correct values are returned
22.  
23.                         int centerY = canvas.getBitmapHeight() / 2;
24.  
25.                         canvas.drawBitmap(this.crossHair,
26.  
27.                                         centerX - (this.crossHair.width() / 2),
28.  
29.                                         centerY - (this.crossHair.height() / 2),
30.  
31.                                         this.p);
32.  
33.                 }
34.  
35.         }

Parsed in 0.033 seconds, using GeSHi 1.0.8.4

Regards,
plusminus

| Android Development Community / Tutorials

by Jitendra Kumar » Tue Mar 11, 2008 6:23 am

Hi Plus Minus . Many many thanx to U. I was confused whether to draw a canvas or to create an overlay . Thnax a lot