Android Android.util.patterns.email_address Strange Behaviour

Today we experienced strange pattern behaviour. For instance, on tablet with 3.2 stock rom(previously 4.0.+) it works well. But on some other 3.2 tablets and 4.0 devices it doesn't

Solution 1:

Get the value of pattern using Pattern.pattern() function from a device on which is works and make your own Pattern object out of it. This way you won't have differences in implementations across devices. Same goes for Geocoder, which didn't work for me on some devices.

Solution 2:

Our current solution, which worked:

[a-zA-Z0-9\\+\\.\\_\\%\\-\\+]{1,256}[\\@]{1}[a-zA-Z0-9][a-zA-Z0-9\\-]{0,64}([\\.]{1}[a-zA-Z0-9][a-zA-Z0-9\\-]{0,25})+