How to show a balloon above a marker in a MapActivity? Isn't there a widget?

I dont get the point, why I have to code so much for it. Like, I dont want to care about...

• the position of the bal开发者_如何学JAVAloon (I just want to assign a geopoint)
• the layout of a basic balloon (Later on I might want to implement a xml based layout)
• the number of shown balloons (only display one at a time)
• the open/close behaviour of the balloon (close, when an other bollon is tabbed)

Update

Solved it! See my answer below...

Here is the "the missing widget"...

• Balloons without icons: https://github.com/jgilfelt/android-mapviewballoons#readme

• Balloons with icons (extends Jeff Gilfelt's project): https://github.com/galex/android-mapviewballoons (Offline, see comments to this answer)