Question

I have the following activity which extends ListActivity:

public class TweetActivity extends ListActivity {

    SharedPreferences settings = this.getSharedPreferences("NewsTweetSettings", 0);

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    ....
  }
} 

The line where I set the sharePreferences always causes the app to crash in the emulator, and I can’t find a reason why. Any ideas?

Answer 1

use the line in your oncreate() after calling the onCreate() super class implementation . It may help you

public class TweetActivity extends ListActivity {

    SharedPreferences settings;

    @Override
    public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    settings=this.getSharedPreferences("NewsTweetSettings", 0); 
    ....
  }
} 

The reason is we dont have any value for ‘this’ before the line super.onCreate(savedInstanceState);

Happy Coding