Android Programming Tutorials

Seeking the Proper Level

if (sdk< 5 ) { return(new OldMobileContacts()); }

return(new NewMobileContacts()); }

The buildBridge() method looks at the SDK value and chooses an

implementation to use. The sendSMS() message takes the Cursor and field

name from the bridge and pours that information into the

AlertDialog.Builder.

You can now compile and run LunchList on both Android 2.x and Android

1.x.

Extra Credit

Here are some things you can try beyond those step-by-step instructions:

Rather than determining which API to use by looking at the SDK
version, check to see if the ContactsContract class exists, since that

class does not exist on Android 1.x.

Experiment with using pure reflection to get at the Uri for the

content provider based on the version of Android the code is running on.