Round bottom corners on Android Bitmap?

Question

Hey all, what would be best practice for clipping the bottom borders of a Bitmap? Just manipulate the Bitmap itself or overlay an alpha mask drawable or ...?

The whole story:

I've a Listview which looks like the iPhone's grouped UITableView style. I would like to display a Bitmap in the last row, but for now the Bitmap overlaps my custom background drawable of the Listview cell.

Thx in advance!

score 4 · Accepted Answer · answered Mar 12 '10 at 20:02

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Fyi: I've found this code snippet: http://www.ruibm.com/?p=184 .

As in my case, I only wanted the bottom corners to be rounded, so I added an additional drawRect (with smaller height than the drawRoundRect) to the canvas.

answered Mar 12 '10 at 20:02

alexleutgoeb

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score 0 · Answer 2 · edited May 23 '17 at 12:19

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I think your answer can be found here: How do I create a ListView with rounded corners in Android?

edited May 23 '17 at 12:19

Community

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answered Feb 12 '10 at 22:38

RickNotFred

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Sry, not really, this thread shows how to set a custom background to the listview (what I've done in a similar way actually), but the content does not get clipped anyway, so my Bitmap would still overlay the rounded corners. alex – alexleutgoeb Feb 12 '10 at 23:33

score 0 · Answer 3 · edited May 23 '17 at 12:22

I needed to do the same thing - but I wanted to do it right in the XML, rather than java code.

I have explained what I did in an answer on this question: Android XML rounded clipped corners.

It was the masking that appealed to me - it can be overlaid over any layout, with minimal problems. Very easy to scale over a whole project, and to change the exact masking, by just modifying one 9Patch masking file.

Round bottom corners on Android Bitmap?

3 Answers3