Hey,
After the instantiation of TileView I set the scale mode. Because I'm reusing the instance I call setSize() after that a couple of times leading to a not working setScale() (mEffectiveMinScale was infinity because of the mBaseWidth == 0).

To avoid frustrating searches for the "bug" could you please add a hint in the documentation for setMinimumScaleMode() that setSize() has to be called first or recalculate the scaling limits when the size is set?
Thanks for the great framework.