CODEWITHSUNDEEP
androiddatabaseandroid-emulatordb4o
user1456170
user1456170

Reputation: 155

db4o on android

I'm a new to developing for android.I use the db4o database in my first project. But I get an error with the following code:

 public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.main);
            //only want to get the configuration
       EmbeddedConfiguration configuration = Db4oEmbedded.newConfiguration();//This one will popup 
    }


the error log :
06-14 20:15:30.249: W/dalvikvm(445): threadid=3: thread exiting with uncaught exception (group=0x4001b188)
06-14 20:15:30.249: E/AndroidRuntime(445): Uncaught handler: thread main exiting due to uncaught exception
06-14 20:15:30.289: E/AndroidRuntime(445): java.lang.NoClassDefFoundError: com.db4o.Db4oEmbedded
06-14 20:15:30.289: E/AndroidRuntime(445):  at com.hlh.AtestActivity.onCreate(AtestActivity.java:34)
06-14 20:15:30.289: E/AndroidRuntime(445):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
06-14 20:15:30.289: E/AndroidRuntime(445):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2459)

I feel very confused why does it work when I use it in a java project but it does not work in an android project Are there some restrictions in Android for this?

Upvotes: 0

Views: 569

Answers (1)

Barak
Barak

Reputation: 16393

It sounds lilke you don't have the library .jar in the correct place.

For android it needs to be in a subfolder of your project called libs which should be on the same level as assets and res and the like (this was a recent change if you don't remember having to do this previously).

Simply create that folder and drop your jar in there and Eclipse will take care of the rest.

Upvotes: 1

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