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Trying to implement the Share Intent

deleted-user-ATjHIWsdQYmT

I am trying to implement the Android Share Intent in order to share out a screen shot of my map via email, facebook, twitter, etc. My thought was to export out the View as a jpg, then attach it. I'm able to export out the view, but the map shows up as black. Every other view element shows up - except for the map.
Here's my code:

View content = findViewById(R.id.mainlayout);   content.setDrawingCacheEnabled(true);
   Bitmap b = content.getDrawingCache();
   File sdCard = Environment.getExternalStorageDirectory();
   File file = new File(sdCard,"zzImage.jpg");
     if(file.exists()){
      file.delete();
     }    
   try {
    b.compress(CompressFormat.JPEG, 100, new FileOutputStream(file));
   } catch (FileNotFoundException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   }

I have also attached two images. One of what it's supposed to look like, and one of the results from the above code.

Any ideas?
[ATTACH=CONFIG]14605[/ATTACH][ATTACH=CONFIG]14606[/ATTACH]

FromShareIntent.jpg

SupposedToLookLike.PNG

ImportChangesFailed.png

screenshot_2.png

cjms_0-1785534389036.png

A Quarkue Sq.jpg

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Accepted answers

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AndyGup

For those who this bug applies to it has been logged under NIM081315.

-Andy

Anonymous User

Original User: andygup

Yes, it's been confirmed there is a bug. Please refer to Archana's comment here that includes a potential workaround: http://forums.arcgis.com/threads/46792-mapview.getMapDrawingCache()-returns-null?p=202231#post202231

-Andy

deleted-user-ATjHIWsdQYmT

After a little digging, It looks like I'm not the only one with this issue. I found this thread:
http://forums.arcgis.com/threads/46792-mapview.getMapDrawingCache()-returns-null

Has this been confirmed as a bug?

Anonymous User

Original User: andrewb

Another thought is that your drawing cache may be defaulting to a width/height of 0,0. According to the Android docs you may be missing a call to createBitmap(). And, that method calls for a width, height and Bitmap.Config.

Here's a code snippet that will hopefully re-point you down the right track:
View map = findViewById(R.id.map);
bitmap = Bitmap.createBitmap(map.getWidth(), map.getHeight(), Bitmap.Config.RGB_565);
If you already tried this, can you list out what patterns you've tried?

-Andy

Andy,
Same Result - black image.

I've tried exporting out just the mapView as a bitmap, the entire layout as a bitmap, using different bitmap configurations, using different output image types (jpg, png), moving the view onto a canvas. None seem to be working.

My current workaround is to get the minx/y, max x/y map extent and pass it to the REST endpoint and return an image. Downside to this is I don't have the graphicslayer overlaid, or the callout. I'm trying to figure out a way to write the callout to a separate bitmap as well as the graphicslayer(if possible) and overlay them all. Its a ton of work just to do a simple screen shot, but as of now at least I have a map. callout and graphicslayer is hopefully the next step. Downside is this requires another round trip to the server.

AndyGup

Another thought is that your drawing cache may be defaulting to a width/height of 0,0. According to the Android docs you may be missing a call to createBitmap(). And, that method calls for a width, height and Bitmap.Config.

Here's a code snippet that will hopefully re-point you down the right track:

View map = findViewById(R.id.map);
bitmap = Bitmap.createBitmap(map.getWidth(), map.getHeight(), Bitmap.Config.RGB_565);

If you already tried this, can you list out what patterns you've tried?

-Andy

Anonymous User

Original User: andrewb

I'm just guessing that this has do with MapView when you serialize/deserialize it as a bitmap at the bytecode level. Did you try any patterns similar to this link: http://www.brighthub.com/mobile/google-android/articles/30676.aspx?

-Andy

I tried, and wasn't successful. honestly, I had a hard time following the article.

Any other suggestions? Seems like no matter what I try (and I've tried a lot of patterns), all I get is a black image.

Thanks,
Andrew

AndyGup

I'm just guessing that this has do with MapView when you serialize/deserialize it as a bitmap at the bytecode level. Did you try any patterns similar to this link: http://www.brighthub.com/mobile/google-android/articles/30676.aspx?

-Andy

Anonymous User

Original User: andrewb

Too bad. I'd really like to try to find a workaround for this. I was hoping to "cheat" by just attaching a screen shot. that way it'll share exactly what the end user is viewing. It's odd how everything BUT the map gets exported. I tried writing out just the map to a bitmap as opposed to the entire layout. that came out just black too. Could it have something to do with the implementation of OpenGL as part of the MapView?

AndyGup

Andrew, sorry I can't help with that. Serializing screen captures on any client is tricky because issues related to Class reflection. The usual best practice is to create a URL to an external web map.

-Andy

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