bluetooth chat only works with android sdk 3.0? -

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as 1 of first android projects downloaded bluetooth chat sample code

http://developer.android.com/resources/samples/bluetoothchat/index.html

and tried build it. seems can build project android sdk 3.0 - when using sdk 2.2 there compile time errors, classes not found.

i wondering if there version of bluetooth chat compatible 2.2? reason i'm asking dev phone running android 2.2 (tmobile comet), , apk built 3.0 crashes on dev phone.

the sdk contains samples different api versions. can download bluetoothchat app android 2.2 using sdk manager selecting "samples sdk api 8". after downloading, find in samples/android-8/bluetoothchat in sdk directory.


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