I had a textview and what was weird is that I could not get it to always assume capital after a period. Here is what I learned:

android:capitalize

If set, specifies that this TextView has a textual input method and should automatically capitalize what the user types. The default is "none".

Must be one of the following constant values.

Constant     Value    Description
none         0        Don't automatically capitalize anything.
sentences    1        Capitalize the first word of each sentence.
words        2        Capitalize the first letter of every word.
characters   3        Capitalize every character.

This corresponds to the global attribute resource symbol capitalize.

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