mapview.getMapDrawingCache() returns null

[SwatiGadey]

I am trying to create a bitmap image of the Map (MapView object) as follows:

Bitmap drawingCache = mapview.getDrawingCache(true);
Btimap bitmap = mapview.getDrawingMapCache(0, 0, mapview.getWidth(), mapview.getHeight());
Bitmap drawingCache = mapview.getDrawingCache(false);

This returns a null in my 'bitmap' object. What is the correct way of using mapview.getMapDrawingCache method for getting map image?

[ArchanaAgarwal]

Please try getDrawingMapCache()

[SwatiGadey]

Sorry for the confusion. I meant using mapview.getDrawingMapCache() (Sorry about the typo). This returns null.
Earlier, I had been using mapview.getDrawingCache() to get the map image, which is not working either. Instead of the map's image, now I get a blank image with black background.

[SwatiGadey]

@Archana - Meanwhile, I had implemented getting the map image using the following snippet:

          // Code in "OnLongPressListener"
                       ------------
                       ------------
                        map.setDrawingCacheEnabled(true);

   Bitmap drawingCache = map.getDrawingCache(true);
   Log.d(TAG,"Drawing cache = " + drawingCache.getWidth()); // 480

   Bitmap bitmap = Bitmap.createBitmap(drawingCache, 0, 0, drawingCache.getWidth(), drawingCache.getHeight());
   Log.d(TAG,"Bitmap cache = " + bitmap.getWidth()); // 480
   map.setDrawingCacheEnabled(false);

                       ------------
                       ------------


                       protected void onDraw(Canvas canvas) {
   if (X > 0 && Y > 0) {

    Bitmap croppedBitmap = Bitmap.createBitmap(bitmap, (int) X - 35, (int) Y - 35, 70, 70);
    Log.d(TAG, "cropped bitmap = " + croppedBitmap.getWidth());   // 70

    int left = (int) X - 75;
    int top = (int) Y - 150;
    int right = (int) X + 75;
    int bottom = (int) Y;
    RectF dst = new RectF(left, top, right, bottom);

    canvas.drawBitmap(croppedBitmap, null, dst, new Paint());
                                -------------
                                -------------
                       }

This worked before the SDK release (with the Beta version). However, returns me a black image now (and not a map image). Am I going wrong somewhere here?
Thanks for your help.

[BradFrecker]

I'm seeing the same thing.  Is this a problem with the SDK, or are we doing something wrong?

[SwatiGadey]

My understanding is that this is a bug, which ESRI is working on.

You may also want to check out the response from ESRI DEV in Thread: Magnify tool
http://forums.arcgis.com/threads/45706-Magnify-tool

[ArchanaAgarwal]

Fundamentally the first two coordinates must be screen coordinates. If you have that correct it should just work.
We will be releasing shortly, this functionality should work.

map.setOnSingleTapListener(new OnSingleTapListener() {
  
   @Override
   public void onSingleTap(float arg0, float arg1) {
                                Bitmap bitmap =  map.getDrawingMapCache(arg0,arg1,100,100);   
    ImageView img = new ImageView(ClassName.this);
    img.setImageBitmap(bitmap);
   
    map.addView(img);}});

[SimonKlein]

This still does not work for me in 1.1
I copied this code in the onSingleTap of the Rotation sample.
The Bitmap is always null.
Tested on Android 4.0.4. and 3.2.

[SimonKlein]

Did anybody find a solution for this?

[SimonKlein]

ok i found one. ugly but it works:

while (mailBitmap == null) {
     mailBitmap = mMapView.getDrawingMapCache(0f, 0f,
       mMapView.getWidth(), mMapView.getHeight());
    }

The first time you try it it takes up to 1400 attempts, but after that it gets quicker.