(The advanced tutorial for Android experts explains the use of the all-around BaseAdapter. The effect of the adapter is mainly used to fill in data for example (Spinner, ListView, GridView). (Spinner, ListView, GridView) all have their own adapters (remember the trouble). BaseAdapter has now implemented the interfaces of ListAdapter and SpinnerAdapter, while the ListAdapter interface of GridView is just two-dimensional. So BaseAdapter is universal for the three. This document includes the following annexes:
Codefans Advanced Course for Android Masters (XVI) -- Use of the all-around BaseAdapter (Spinner, ListView, GridView) in Android pdf
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