Question

Commented out almost everything still can’t find the null ?? I only get this error on 2.1 any higher all works well ?? Thanks for the help.

public class BizProfiles extends Activity {

    private Button button;
    private Button btnFbLogin;
    private Button btnPostToWall;
    private Button btnTLogin;
     // Facebook APP ID
    private static String APP_ID = "App ID here"; // 

    // Instance of Facebook Class
    private Facebook facebook;
    @SuppressWarnings("unused")
    private AsyncFacebookRunner mAsyncRunner;
    String FILENAME = "AndroidSSO_data";
    private SharedPreferences mPrefs;


    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        final Context context = this;
        super.onCreate(savedInstanceState);
        facebook = new Facebook(APP_ID);
        mAsyncRunner = new AsyncFacebookRunner(facebook);



        /////////////////////////////////////////////////////////////////////////////////
        Display display = getWindowManager().getDefaultDisplay(); 
        int width = display.getWidth();
        int height = display.getHeight();
        if (width == 320 && height == 480)
        {
              setContentView(R.layout.bizprofiles320); 
              Log.v("blah", "320 layout");
        }
        else
        {
            Log.v("blah", "480 800 layout");


            setContentView(R.layout.bizprofiles);
        //////
        }
//      String name = getIntent().getExtras().getString("BizName");
//      String address = getIntent().getExtras().getString("BizAddress");
//      String phone = getIntent().getExtras().getString("BizPhone");
//      String about = getIntent().getExtras().getString("BizAbout");
//      String monfri = getIntent().getExtras().getString("BizMonFri");
//      String satsun = getIntent().getExtras().getString("BizSatSun");
//      String imgname = getIntent().getExtras().getString("BizImg");
//      final String website = getIntent().getExtras().getString("BizWeb");


        //////
        button = (Button) findViewById(R.id.button1);
        button.setOnClickListener(new View.OnClickListener() {

          public void onClick(View arg0) {
            Intent intent = new Intent(context, BizWebSite.class);
         //   intent.putExtra("BizWeb", website.toString());
            startActivity(intent);
          } });

        btnFbLogin = (Button) findViewById(R.id.button2);
        btnFbLogin.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                    loginToFacebook();
                }
        });

        btnPostToWall = (Button) findViewById(R.id.Button01);
        btnPostToWall.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                postToWall();
            }
        });


        btnTLogin = (Button) findViewById(R.id.tlogin);
        btnTLogin.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
//              Intent intent = new Intent(context, TweetPage.class);
//           //   intent.putExtra("BizWeb", website.toString());
//              startActivity(intent);

                 new Twitter_Dialog(BizProfiles.this,"http://twitter.com/?status="+Uri.encode("Twitter Post")).show();

            }
        });

       // String getimg = imgname;
//        int resID = getResources().getIdentifier(imgname, "drawable", "com.RforR.ForPlay1");
//      ImageView image = (ImageView) findViewById(R.id.imageView3); //null;
//      image.setImageResource(resID);
        //System.out.println(resID);
        //Log.v("blah*************", resID);

//      AutoResizeTextView obtar = new AutoResizeTextView(context);
//      obtar tvme = (TextView) findViewById(R.id.tvName);

//        TextView theTextView = (TextView) findViewById(R.id.tvName);
//        theTextView.setText(name);
//        TextView theAdd = (TextView) findViewById(R.id.tvAddress);
//        theAdd.setText(address);
//        TextView thePhone = (TextView) findViewById(R.id.tvPhone);
//        thePhone.setText(phone);

    }



    public void onGetNames(View gn)
    {

//      String name = getIntent().getExtras().getString("BizName");
//      String address = getIntent().getExtras().getString("BizAddress");
//      String phone = getIntent().getExtras().getString("BizName");
//      String about = getIntent().getExtras().getString("BizAbout");
//      String monfri = getIntent().getExtras().getString("BizMonFri");
//      String satsun = getIntent().getExtras().getString("BizSatSun");
//      
//      System.out.println(name);
//      System.out.println(about);
//      System.out.println(satsun);


        Log.v("blah", "blah blah");

    }


    public void loginToFacebook() {
        mPrefs = getPreferences(MODE_PRIVATE);
        String access_token = mPrefs.getString("access_token", null);
        long expires = mPrefs.getLong("access_expires", 0);

        if (access_token != null) {
            facebook.setAccessToken(access_token);
        }

        if (expires != 0) {
            facebook.setAccessExpires(expires);
        }

        if (!facebook.isSessionValid()) {
            facebook.authorize(this,
                    new String[] { "email", "publish_stream" },
                    new DialogListener() {

                        public void onCancel() {
                            // Function to handle cancel event
                        }

                        public void onComplete(Bundle values) {
                            // Function to handle complete event
                            // Edit Preferences and update facebook acess_token
                            SharedPreferences.Editor editor = mPrefs.edit();
                            editor.putString("access_token",
                                    facebook.getAccessToken());
                            editor.putLong("access_expires",
                                    facebook.getAccessExpires());
                            editor.commit();
                        }

                        public void onError(DialogError error) {
                            // Function to handle error

                        }

                        public void onFacebookError(FacebookError fberror) {
                            // Function to handle Facebook errors

                        }

                    });
        }
    }


    public void postToWall() {
        // post on user's wall.
        facebook.dialog(this, "feed", new DialogListener() {

            public void onFacebookError(FacebookError e) {
            }

            public void onError(DialogError e) {
            }

            public void onComplete(Bundle values) {
            }

            public void onCancel() {
            }
        });

    }



    public void onGoBk(View cc)
    {

        finish();
    }


}

logcat

Answer 1

You are getting your null pointer exception on 21 and below because getHeight and getWidth were added then. Try this ;

if (  Integer.valueOf(android.os.Build.VERSION.SDK_INT) < 13 ) {
     Display display = getWindowManager().getDefaultDisplay(); 
     int width = display.getWidth();
     int height = display.getHeight();
   } else {
       Display display = getWindowManager().getDefaultDisplay();
          Point size = new Point();
          display.getSize(size);
          int width = size.x;
          int height = size.y;
   }

You may need to play around with the API level (I can’t remember what 2.1 is)