Android Android SDK source will not compile using Eclipse Indigo

Question

Finally, after the Android Facebook SDK correctly imported thanks to this , I found that eclipse did not recognize the onclick override in FbDialog.java:

mCrossImage.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { mListener.onCancel(); FbDialog.this.dismiss(); } }); 

Nor does it recognize the onServiceConnected and onServiceDisconnected overrides in the TokenRefreshServiceConnection ServiceConnection override

 @Override public void onServiceConnected(ComponentName className, IBinder service) { messageSender = new Messenger(service); refreshToken(); } @Override public void onServiceDisconnected(ComponentName arg) { serviceListener.onError(new Error("Service disconnected")); // We returned an error so there no point in // keeping the binding open. mAuthActivity.unbindService(TokenRefreshServiceConnection.this); } 

All three methods say in a warning that the method should override the superclass method. I have not changed the code yet. I checked that Eclipse recognizes the types as the same in the corresponding superclasses, and I tried pressing control-shift-o to organize the import, which was fixed in this answer for a similar task.

These overrides are part of the SDK, not a separate project. I configured the project to use the Android SDK 2.2, as shown in the Facebook instructions, and 4.0.3, which should be theoretically compatible with all previous versions. I have not yet received my own Facebook code to work. As a note, is there a jar that I can use instead? That would make it a lot easier.

Answer 1

Guess your project properties -> Java Compiler Compiler. The compiler's compliance level is set to 1.5, not 1.6 (or higher).

Change it.

Why javac doesn't work with @Override annotation

Answer 2

A lazy, quick and easy fix is ​​to remove @Override annotations. The correct fix is ​​to verify that the project compiles in Java 1.5 or higher, to use the “fix project properties” from Eclipse and possibly verify that the Facebook library project uses the same Android SDK to compile as your project.