地图上显示了错误的注释视图

Question

I am inserting a new kind of annotations and, differently from the previous ones, they behave crazily. When the map of an area is shown, the delegate is passed annotation belonging to a far away zone, reporting their own features. Yet they appear exactly in the positions in which the right annotations should appear! This happens 90% of the times with the rest being the correct annotations, and the annotations being displayed always belong to a strict subset of the available ones.

What could it be to produce this weird behavior and how to solve it?

The problem was I used a static identifier as suggested quite everywhere. Once I used a string with an identifier dependent on the annotation, everything got sorted out.

Answer 1

实际上，我必须为每个注释使用一个标识符：太糟糕了，它们很多，但是它们带来了不同的信息，所以我不能使它们全部相同。