What is different between @+id/android:list and @id/android:list ??

by James Lee » Sat, 17 Jul 2010 09:14:11 GMT


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 Hello Everyone ~

I've develop android application, and one question.

As you know, When we use LiveActivity, we must specify @id/
android:list for ListView ID.

But, When I use @+id/android:list instead of @id/android:list, it is
working fine.

What is different between @+id/android:list and @id/android:list ??

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Other Threads

1. com.google Authenticator for the new android.accounts.AccountManager API.

I am working on writing (and eventually releasing on the Android
marketplace) a Google authenticator that will authenticate with Google
and return a Google Auth Token (see: 
http://code.google.com/apis/gdata/docs/auth/overview.html).
The ultimate goal is to have this authenticator mirror the behavior of
the com.google authenticator that comes with the Motorola Droid.

This will hopefully allow developers to have such an authenticator
available to them on the SDK emulator as well as end-users with any
phone running Android 2.0 that does not have the official Google
version of the authenticator (ie: custom ROMs, future phones that
don't get the full Google package, etc.).

Also, since there is no word on how long before any phones besides the
Motorola Droid get Android 2.0, this will hopefully allow developers
to start leveraging the new AccountManager APIs sooner rather than
later (ie: via the SDK emulator).

I have created an open source project for this endeavor (see link
below) that contains the first bit of work I have done on getting the
Authenticator writen.  If you are interested in contributing let me
know, I am definitely open to the help or if you can offer insight as
to the proper use of the new AccountManager API or some place I am
using it wrong it would be much appreciated.  Worst case scenario I'll
plug away at this in my free time and at least people can use it as a
reference for writing their own Authenticators in the future.

http://code.google.com/p/google-authenticator-for-android/

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2. AccountManager and Google App Engine

I am also interested in this.  If it is indeed possible to access the
authentication token for the Google accounts associated with the phone
itself, and to subsequently pass those to GAE so that backend
functionality can proceed to use the various GAE and other Google
services without requiring authentication, it seems like it's going to
be a significant draw to GAE for Android devs.




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