title: The application's PagerAdapter changed the adapter's contents
body: <p>I'm trying to build a pager to display images, sequentially. But I am getting this error. </p>
  
  <pre><code>The application's PagerAdapter changed the adapter's contents without calling PagerAdapter#notifyDataSetChanged! 
  Expected adapter item count: 0, found: 1 Pager id:.
  </code></pre>
  
  <p>Please someone guide to fix it.</p>
  
  <p>This is my code:</p>
  
  <p><strong>MatChedUserProfile Activity</strong></p>
  
  <pre><code>public class MatChedUserProfile extends Activity implements OnClickListener {
      private static final String TAG = "MatChedUserProfile";
      private static boolean mDebugLog = true;
      private static String mDebugTag = "MatChedUserProfile";
      private ExtendedGallery imageExtendedGallery;
      private LinearLayout image_count;
      private TextView usernametextivew, ueragetextviw, distancetextview,
              activetimetextview, abouttextview, abouttextviewvalues,
              viewMatchedProfiletextview, statusTextView;
      private RelativeLayout Aboutuseragelayout, likedislikebuttonlayout;
      private Button likeButton, dislikebutton;
      private ArrayList&lt;GellaryData&gt; imageList;
  
  //private ImageAdapterForGellary mAdapterForGellary;
  private ProgressDialog mDialog;
  private int[] imageHeightandWIdth;
  private ConnectionDetector cd;
  private RelativeLayout.LayoutParams layoutParams;
  private int count;
  private TextView[] page_text;
  private SharedPreferences preferences;
  
  //new viewpager....
  private ViewPager viewPager;
  private MyViewPagerAdapter mAdapterForGellary;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
  
      setContentView(R.layout.matcheduserprofile);
      //Thread.setDefaultUncaughtExceptionHandler(new CrashLogger(getApplicationContext()));
      cd = new ConnectionDetector(this);
      if (!cd.isConnectingToInternet()) {
          Toast.makeText(this, "No Internet", Toast.LENGTH_SHORT).show();
          return;
      }
      preferences = PreferenceManager.getDefaultSharedPreferences(this);
  
      initLayoutResource();
  
      imageList = new ArrayList&lt;GellaryData&gt;();
      //listOfItems=new ArrayList&lt;GellaryData&gt;();
  
      mAdapterForGellary = new MyViewPagerAdapter(imageList);
  
      //imageExtendedGallery.setAdapter(mAdapterForGellary);
      viewPager.setAdapter(mAdapterForGellary);
  
  
      Ultilities ultilities = new Ultilities();
  
      imageHeightandWIdth = ultilities
              .getImageHeightAndWidthForProfileGellary(this);
      Bundle bundle = getIntent().getExtras();
      if (bundle != null) {
          if (bundle.getBoolean(Constant.isFromChatScreen)) {
              likedislikebuttonlayout.setVisibility(View.GONE);
          } else {
  
          }
      }
  
  
      Settings.addLoggingBehavior(LoggingBehaviors.INCLUDE_ACCESS_TOKENS);
  
  
      try {
          likeButton.setOnClickListener(this);
          dislikebutton.setOnClickListener(this);
      } catch (Exception e) {
      }
  
      RelativeLayout.LayoutParams rlp = new RelativeLayout.LayoutParams(
              imageHeightandWIdth[1], imageHeightandWIdth[0]);
      rlp.addRule(RelativeLayout.CENTER_HORIZONTAL);
  
      layoutParams = ultilities.getRelativelayoutParams(
              LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
      layoutParams.addRule(RelativeLayout.CENTER_HORIZONTAL);
  
      layoutParams.setMargins(0, 5, 0, 0);
  
      layoutParams = ultilities.getRelativelayoutParams(
              LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
      layoutParams.addRule(RelativeLayout.CENTER_HORIZONTAL);
  
      layoutParams.setMargins(0, 5, 0, 0);
  
      cd = new ConnectionDetector(getApplicationContext());
  
      if (cd.isConnectingToInternet()) {
          getUserProfile();
          // getUserShareeInterest();
      } else {
          AlertDialogManager
                  .internetConnetionErrorAlertDialog(MatChedUserProfile.this);
      }
  
      //myViewPagerAdapter = new MyViewPagerAdapter(imageList);
  
      viewPager.setAdapter(mAdapterForGellary);
      viewPager.setCurrentItem(0);
      viewPager.setOnPageChangeListener(viewPagerPageChangeListener);
  
  /*  imageExtendedGallery
              .setOnItemSelectedListener(new OnItemSelectedListener() {
  
                  @Override
                  public void onItemSelected(AdapterView&lt;?&gt; parent,
                          View view, int pos, long id) {
  
                      for (int i = 0; i &lt; count; i++) {
                          page_text[i]
                                  .setTextColor(android.graphics.Color.GRAY);
                      }
                      page_text[pos]
                              .setTextColor(android.graphics.Color.LTGRAY);
  
                  }
  
                  @Override
                  public void onNothingSelected(AdapterView&lt;?&gt; arg0) {
  
                  }
              });*/
  
  }
  
  //  page change listener
  ViewPager.OnPageChangeListener viewPagerPageChangeListener = new ViewPager.OnPageChangeListener() {
  
      @Override
      public void onPageSelected(int position) {
  
          for (int i = 0; i &lt; count; i++) {
              page_text[i]
                      .setTextColor(android.graphics.Color.GRAY);
          }
          page_text[position]
                  .setTextColor(android.graphics.Color.LTGRAY);
  
      }
  
      @Override
      public void onPageScrolled(int arg0, float arg1, int arg2) {
  
      }
  
      @Override
      public void onPageScrollStateChanged(int arg0) {
  
      }
  };
  
  
  
  private void initLayoutResource() {
  
      viewMatchedProfiletextview = (TextView) findViewById(R.id.viewMatchedProfiletextview);
      likeButton = (Button) findViewById(R.id.likeButton);
      dislikebutton = (Button) findViewById(R.id.dislikebutton);
      //imageExtendedGallery = (ExtendedGallery) findViewById(R.id.imageExtendedGallery);
  
      viewPager = (ViewPager)findViewById(R.id.viewPager);
      image_count = (LinearLayout) findViewById(R.id.image_count);
      usernametextivew = (TextView) findViewById(R.id.usernametextivew);
      ueragetextviw = (TextView) findViewById(R.id.ueragetextviw);
      distancetextview = (TextView) findViewById(R.id.distancetextview);
      activetimetextview = (TextView) findViewById(R.id.activetimetextview);
      statusTextView = (TextView) findViewById(R.id.txtMatchedUserStatus);
      // userfriendgallery = (HorizontalListView)
      // findViewById(R.id.userfriendgallery);
      // userIntestedgallery = (HorizontalListView)
      // findViewById(R.id.userIntestedgallery);
      abouttextview = (TextView) findViewById(R.id.abouttextview);
      Aboutuseragelayout = (RelativeLayout) findViewById(R.id.Aboutuseragelayout);
      Aboutuseragelayout.setVisibility(View.GONE);
      likedislikebuttonlayout = (RelativeLayout) findViewById(R.id.likedislikebuttonlayout);
      abouttextviewvalues = (TextView) findViewById(R.id.abouttextviewvalues);
  
  
      Typeface HelveticaInseratLTStd_Roman = Typeface.createFromAsset(
              getAssets(), "fonts/HelveticaInseratLTStd-Roman.otf");
      Typeface HelveticaLTStd_Light = Typeface.createFromAsset(getAssets(),
              "fonts/HelveticaLTStd-Light.otf");
      viewMatchedProfiletextview.setTypeface(HelveticaLTStd_Light);
      viewMatchedProfiletextview.setTextColor(Color.rgb(255, 255, 255));
      viewMatchedProfiletextview.setTextSize(20);
  
      usernametextivew.setTypeface(HelveticaInseratLTStd_Roman);
      usernametextivew.setTextColor(Color.rgb(124, 124, 124));
      ((TextView) findViewById(R.id.txtst))
              .setTypeface(HelveticaInseratLTStd_Roman);
      ((TextView) findViewById(R.id.txtst)).setTextColor(Color.rgb(124, 124,
              124));
      statusTextView.setTypeface(HelveticaInseratLTStd_Roman);
      statusTextView.setTextColor(Color.rgb(124, 124, 124));
      // usernametextivew.setTextSize(20);
  
      ueragetextviw.setTypeface(HelveticaLTStd_Light);
      ueragetextviw.setTextColor(Color.rgb(124, 124, 124));
  
      abouttextview.setTypeface(HelveticaInseratLTStd_Roman);
      abouttextview.setTextColor(Color.rgb(92, 92, 92));
      abouttextview.setTextSize(15);
  
      abouttextviewvalues.setTypeface(HelveticaInseratLTStd_Roman);
      abouttextviewvalues.setTextColor(Color.rgb(131, 131, 131));
      abouttextviewvalues.setTextSize(15);
  
      distancetextview.setTypeface(HelveticaInseratLTStd_Roman);
      distancetextview.setTextColor(Color.rgb(92, 92, 92));
      distancetextview.setTextSize(15);
  
      activetimetextview.setTypeface(HelveticaInseratLTStd_Roman);
      activetimetextview.setTextColor(Color.rgb(131, 131, 131));
      activetimetextview.setTextSize(15);
  }
  
  private void getUserProfile() {
      SessionManager mSessionManager = new SessionManager(this);
  
      String macheduserFacebookid = mSessionManager
              .getMatchedUserFacebookId();
      AppLog.Log(TAG, "Matched UserFacebook ID:" + macheduserFacebookid);
      // String userSessionToken = mSessionManager.getUserToken();
      String userDeviceId = Ultilities.getDeviceId(this);
      if (macheduserFacebookid != null &amp;&amp; macheduserFacebookid.length() &gt; 0) {
          // String[] params = { userSessionToken, userDeviceId,
          // macheduserFacebookid };
          String[] params = { macheduserFacebookid };
          new BackGroundTaskForUserProfile().execute(params);
      } else {
          ErrorMessageMandetoryFiledMissing(
                  getResources().getString(R.string.alert), getResources()
                          .getString(R.string.retriedmessage));
      }
  }
  
  private class BackGroundTaskForUserProfile extends
          AsyncTask&lt;String, Void, Void&gt; {
      Ultilities mUltilities = new Ultilities();
      private String getProfileResponse;
      private List&lt;NameValuePair&gt; userProfileNameValuePairList;
      private userProFileData mUserProFileData;
      private GellaryData mGellaryData;
  
      @Override
      protected Void doInBackground(String... params) {
          try {
  
              userProfileNameValuePairList = mUltilities
                      .getUserProfileParameter(params);
              getProfileResponse = mUltilities.makeHttpRequest(
                      Constant.getProfile_url, Constant.methodeName,
                      userProfileNameValuePairList);
  
              // logDebug("BackGroundTaskForUserProfile  getProfileResponse "+getProfileResponse);
              Gson gson = new Gson();
              mUserProFileData = gson.fromJson(getProfileResponse,
                      userProFileData.class);
  
              String[] images = mUserProFileData.getImages();
  
  
              for (int i = 0; i &lt; images.length; i++) {
                  mGellaryData = new GellaryData();
  
                  mGellaryData.setImageUrl(images[i]);
                  imageList.add(mGellaryData);
  
              }
  
              runOnUiThread(new Runnable() {
                  @Override
                  public void run() {
  
                      if (mDialog != null) {
                          mDialog.dismiss();
                      }
  
                      page_text = new TextView[imageList.size()];
                      count = imageList.size();
                      image_count.removeAllViews();
                      for (int i = 0; i &lt; imageList.size(); i++) {
                          page_text[i] = new TextView(MatChedUserProfile.this);
                          page_text[i].setText(".");
                          page_text[i].setTextSize(45);
                          page_text[i].setTypeface(null, Typeface.BOLD);
                          page_text[i]
                                  .setTextColor(android.graphics.Color.GRAY);
                          image_count.addView(page_text[i]);
  
                      }
  
                      //Log.d("shanImage", Array.toString(mUserProFileData.getImages()));
                      mAdapterForGellary.notifyDataSetChanged();
  
                      if (mUserProFileData.getStatus() != null
                              &amp;&amp; !mUserProFileData.getStatus().equals("")) {
                          statusTextView
                                  .setText(mUserProFileData.getStatus());
                      } else {
                          statusTextView.setText("N/A");
                      }
                      ueragetextviw.setText("" + mUserProFileData.getAge());
                      usernametextivew.setText(""
                              + mUserProFileData.getFirstName());
                      viewMatchedProfiletextview.setText(""
                              + mUserProFileData.getFirstName());
  
  
                      SessionManager sessionManager = new SessionManager(
                              MatChedUserProfile.this);
                      String DistanceUinit = null;
                      if (sessionManager.getDistaceUnit().equals("Km")) {
                          DistanceUinit = "Km.";
                      } else {
                          DistanceUinit = "Mi.";
                      }
  
                      distancetextview.setText("Less than "
                              + mUserProFileData.getDistance() + " "
                              + DistanceUinit + " away");
                      String gmtTime = mUserProFileData.getLastActive();
                      // gmtTime=gmtTime.replaceAll("-", " ");
  
                      String localTime = UltilitiesDate.getLocalTime(gmtTime);
                      Ultilities ultilities = new Ultilities();
                      // String
                      // curentTime=ultilities.getCurrentDateYYYYMMdd();
                      String dataString = UltilitiesDate
                              .datesString(localTime);
                      UltilitiesDate ultilitiesDate = new UltilitiesDate();
                      int days = ultilitiesDate.getDays();
                      int hours = ultilitiesDate.getHours();
  
                      activetimetextview.setText("active " + days + " -d  "
                              + hours + "- Hour ago");
                      if (mUserProFileData.getPersDesc() != null
                              &amp;&amp; mUserProFileData.getPersDesc().length() &gt; 0) {
                          Aboutuseragelayout.setVisibility(View.VISIBLE);
                          abouttextview.setText("About  " + ""
                                  + mUserProFileData.getFirstName());
                          abouttextviewvalues.setText(""
                                  + mUserProFileData.getPersDesc());
  
                      } else {
                          Aboutuseragelayout.setVisibility(View.GONE);
                      }
                  }
              });
  
          } catch (Exception e) {
              AppLog.Log(TAG,
                      "BackGroundTaskForUserProfile   doInBackground Exception"
                              + e);
          }
          return null;
      }
  
      @Override
      protected void onPostExecute(Void result) {
          super.onPostExecute(result);
  
          try {
  
              if (mDialog != null) {
                  mDialog.dismiss();
              }
  
          } catch (Exception e) {
              AppLog.Log(TAG,
                      "BackGroundTaskForUserProfile   onPostExecute Exception  "
                              + e);
          }
      }
  
      @Override
      protected void onPreExecute() {
          super.onPreExecute();
          mDialog = mUltilities.GetProcessDialog(MatChedUserProfile.this);
          mDialog.setMessage("Please Wait..");
          mDialog.setCancelable(false);
          mDialog.show();
      }
  
  }
  </code></pre>
  
  <p><strong>ImageAdapterForGellary Adapter</strong></p>
  
  <pre><code>private class ImageAdapterForGellary extends PagerAdapter {
      Activity mActivity;
      private LayoutInflater mInflater;
      private Ultilities mUltilities = new Ultilities();
  
      private int[] imageheightandWidth = mUltilities
              .getImageHeightAndWidthForGellary(MatChedUserProfile.this);
  
      public ImageAdapterForGellary(
              List&lt;GellaryData&gt; objects) {
  
          //mActivity = context;
          mInflater = (LayoutInflater) mActivity
                  .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
      }
  
  
      @Override
      public int getCount() {
          return super.getCount();
      }
  
      @Override
      public GellaryData getItem(int position) {
          return super.getItem(position);
      }
  
      @Override
      public View getView(int position, View convertView, ViewGroup parent) {
          ViewHolder holder;
          if (convertView == null) {
              holder = new ViewHolder();
              convertView = mInflater.inflate(R.layout.galleritem, null);
              holder.imageview = (ImageView) convertView
                      .findViewById(R.id.thumbImage);
              // holder.mProgressBar = (ProgressBar) convertView
              // .findViewById(R.id.pbGalleryItemImage);
              convertView.setTag(holder);
          } else {
              holder = (ViewHolder) convertView.getTag();
          }
  
          // holder.mProgressBar.setId(position);
          holder.imageview.setId(position);
  
          Picasso.with(MatChedUserProfile.this) //
                  .load(getItem(position).getImageUrl()) //
                  .error(R.drawable.error) //
                  .resize(imageHeightandWIdth[1], imageHeightandWIdth[0]) //
                  .into(holder.imageview);
  
          return convertView;
      }
  
      class ViewHolder {
          ImageView imageview;
          // ProgressBar mProgressBar;
  
      }
  }
  </code></pre>
  
  <p><strong>MyViewPagerAdapter Adapter</strong></p>
  
  <pre><code>//  adapter
  public class MyViewPagerAdapter extends PagerAdapter {
      private LayoutInflater layoutInflater;
  
      //private ArrayList&lt;Integer&gt; items;
      private List&lt;GellaryData&gt; items;
  
      public MyViewPagerAdapter(List&lt;GellaryData&gt; objects) {
          this.items = objects;
      }
  
      @Override
      public Object instantiateItem(ViewGroup container, int position) {
  
          layoutInflater = (LayoutInflater) getApplicationContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
          View view = layoutInflater.inflate(R.layout.galleritem, container,false);
  
          ImageView galleimageview = (ImageView) view
                  .findViewById(R.id.thumbImage);
  
  
          Picasso.with(MatChedUserProfile.this) //
                  .load(imageList.get(position).getImageUrl()) //
                  .error(R.drawable.error) //
                  .resize(imageHeightandWIdth[1], imageHeightandWIdth[0]) //
                  .into(galleimageview);
  
          ((ViewPager) container).addView(view);
  
          return view;
      }
  
  
      @Override
      public int getCount() {
          return items.size();
      }
  
      @Override
      public boolean isViewFromObject(View view, Object obj) {
          return view == ((View)obj);
      }
  
  
      @Override
      public void destroyItem(ViewGroup container, int position, Object object) {
          View view = (View)object;
          ((ViewPager) container).removeView(view);
      }
  }
  
  
  @Override
  public void onStart() {
      super.onStart();
  
      // Session.getActiveSession().addCallback(statusCallback);
      // FlurryAgent.onStartSession(this, Constant.flurryKey);
  
  }
  
  @Override
  public void onStop() {
      super.onStop();
      // Session.getActiveSession().removeCallback(statusCallback);
      // FlurryAgent.onEndSession(this);
  
  }
  }
  </code></pre>
  
  <p>And this is my error:</p>
  
  <pre><code>FATAL EXCEPTION: main
  
  java.lang.IllegalStateException: The application's PagerAdapter changed the adapter's contents without calling PagerAdapter#notifyDataSetChanged! Expected adapter item count: 0, found: 1 Pager id: com.crushmatic.pro:id/viewPager Pager class: class android.support.v4.view.ViewPager Problematic adapter: class com.fresh.slidingmenu.MatChedUserProfile$MyViewPagerAdapter
  at android.support.v4.view.ViewPager.populate(ViewPager.java:1000)
  at android.support.v4.view.ViewPager.populate(ViewPager.java:952)
  at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1474)
  at android.view.View.measure(View.java:16677)
  at android.widget.LinearLayout.measureVertical(LinearLayout.java:847)
  at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
  at android.view.View.measure(View.java:16677)
  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5286)
  at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
  at android.view.View.measure(View.java:16677)
  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5286)
  at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404)
  at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
  at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
  at android.view.View.measure(View.java:16677)
  at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5286)
  at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
  at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2421)
  at android.view.View.measure(View.java:16677)
  at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1927)
  at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1119)
  at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1301)
  at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1006)
  at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5652)
  at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
  at android.view.Choreographer.doCallbacks(Choreographer.java:574)
  at android.view.Choreographer.doFrame(Choreographer.java:544)
  at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
  at android.os.Handler.handleCallback(Handler.java:733)
  at android.os.Handler.dispatchMessage(Handler.java:95)
  at android.os.Looper.loop(Looper.java:136)
  at android.app.ActivityThread.main(ActivityThread.java:5433)
  at java.lang.reflect.Method.invokeNative(Native Method)
  at java.lang.reflect.Method.invoke(Method.java:515)
  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1268)
  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1084)
  at dalvik.system.NativeStart.main(Native Method)
  </code></pre>