示例#1
0
  private void refreshAccountDetails() {
    // we only want to show user details for WordPress.com users
    if (AccountHelper.isSignedIn()) {
      Account defaultAccount = AccountHelper.getDefaultAccount();

      mDisplayNameTextView.setVisibility(View.VISIBLE);
      mUsernameTextView.setVisibility(View.VISIBLE);
      mAvatarFrame.setVisibility(View.VISIBLE);

      int avatarSz = getResources().getDimensionPixelSize(R.dimen.avatar_sz_large);
      String avatarUrl = GravatarUtils.fixGravatarUrl(defaultAccount.getmAvatar(), avatarSz);
      mAvatarImageView.setImageUrl(avatarUrl, LeaNetworkImageView.ImageType.AVATAR);

      mUsernameTextView.setText("@" + defaultAccount.getmUserName());
      mLoginLogoutTextView.setText(R.string.me_disconnect_from_leanote_com);

      String displayName = defaultAccount.getmUserName();
      if (!TextUtils.isEmpty(displayName)) {
        mDisplayNameTextView.setText(displayName);
      } else {
        mDisplayNameTextView.setText(defaultAccount.getmUserName());
      }
    } else {
      mDisplayNameTextView.setVisibility(View.GONE);
      mUsernameTextView.setVisibility(View.GONE);
      mAvatarFrame.setVisibility(View.GONE);
      mLoginLogoutTextView.setText(R.string.me_connect_to_leanote_com);
    }
  }
示例#2
0
  void displaySong(String bookName, Song song) {
    song_container.setVisibility(song != null ? View.VISIBLE : View.GONE);
    no_song_data_container.setVisibility(song != null ? View.GONE : View.VISIBLE);

    if (song != null) {
      bChangeBook.setText(bookName);
      bChangeCode.setText(song.code);

      // construct rendition of scripture references
      String scripture_references = renderScriptureReferences(PROTOCOL, song.scriptureReferences);
      templateCustomVars.putString("scripture_references", scripture_references); // $NON-NLS-1$

      FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
      ft.replace(
          R.id.song_container,
          SongFragment.create(song, "templates/song.html", templateCustomVars)); // $NON-NLS-1$
      ft.commitAllowingStateLoss();

      currentBookName = bookName;
      currentSong = song;

      { // save latest viewed song TODO optimize using new preferences fw
        Preferences.setString(Prefkey.song_last_bookName, bookName);
        Preferences.setString(Prefkey.song_last_code, song.code);
      }
    }
  }
示例#3
0
 private void setFirstViewVisibility(boolean visible) {
   if (firstView != null) {
     firstView.setVisibility(visible ? View.VISIBLE : View.GONE);
   }
   validationBar.setVisibility(visible ? View.GONE : View.VISIBLE);
   settingsContainer.setVisibility(visible ? View.GONE : View.VISIBLE);
 }
  private void updateUserInterfaceVisibility(boolean visibility) {
    mUserIfVisible = visibility;

    ViewGroup playerv = (ViewGroup) findViewById(R.id.player);
    ViewGroup drawer = (ViewGroup) findViewById(R.id.list_drawer);

    if (visibility) {
      getWindow()
          .clearFlags(
              WindowManager.LayoutParams.FLAG_FULLSCREEN
                  | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN);
      playerv.setVisibility(View.VISIBLE);
      drawer.setVisibility(View.VISIBLE);
    } else {
      getWindow()
          .addFlags(
              WindowManager.LayoutParams.FLAG_FULLSCREEN
                  | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN);
      playerv.setVisibility(View.GONE);
      drawer.setVisibility(View.GONE);
    }

    if (sNavUiCanBeHidden) setNavVisibility(visibility);

    fitVideoSurfaceToScreen(Orientation.SYSTEM);
  }
示例#5
0
 public void showFixSuggestion(String title) {
   if (!TextUtils.isEmpty(title)) {
     ((TextView) mFixActionBar.findViewById(R.id.action_bar_text)).setText(title);
   }
   mCategoryLayout.setVisibility(View.GONE);
   mQuestionsLayout.setVisibility(View.GONE);
   mFixViewLayout.setVisibility(View.VISIBLE);
 }
  public void switchToNavigateMode() {
    mMode = MODE_NAVIGATION;

    mNavigatorContainer.setVisibility(View.VISIBLE);
    mStatusLayout.setVisibility(View.GONE);

    updateButtonVisibility();
  }
 private void updateData() {
   if (mDataVisible) {
     mDataActivity.setImageResource(mDataActivityId);
     mDataGroup.setVisibility(View.VISIBLE);
   } else {
     mDataGroup.setVisibility(View.GONE);
   }
 }
  /**
   * 具体的转屏执行函数--使用父窗口方式
   *
   * @param container
   * @param isFullScreen
   */
  private void setIsFullModeUsingContainer(ViewGroup container, boolean isFullScreen) {
    if (container == null) {
      VDLog.e(VDVideoFullModeController.TAG, "videoview---setIsFullMode---container--return null");
      throw new IllegalArgumentException("container is null");
    }
    if (mVideoViewParams == null) {
      VDLog.e(
          VDVideoFullModeController.TAG,
          "videoview---setIsFullMode---mVideoViewParams--return null");
      mVideoViewParams = getLayoutParams();
    }
    mVideoView.beginChangeParentView();

    if (mVideoFullScreenContainer != null) {
      mVideoFullScreenContainer.removeAllViews();
    }

    if (mVideoFullScreenContainer.getParent() == null) {
      changeToRoot(mVideoFullScreenContainer);
    }
    VDVideoViewController controller = VDVideoViewController.getInstance(mContext);
    if (controller != null) {
      controller.notifyScreenOrientationSwitch(isFullScreen);
      if (mVideoView.isPlaying()) {
        controller.notifyOnShowHideADContainer(true);
      }
    }
    if (isFullScreen) {
      if (mExternalFullScreenContainer != null) {
        mExternalFullScreenContainer.setVisibility(VISIBLE);
      }
      // 横屏
      VDVideoScreenOrientation.setStatusBarVisible(mContext, true);
      mVideoFullScreenContainer.setVisibility(View.VISIBLE);

      container.removeView(this);
      mVideoFullScreenContainer.addView(
          this, ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT);
    } else {
      if (mExternalFullScreenContainer != null) {
        mExternalFullScreenContainer.setVisibility(GONE);
      }
      VDVideoScreenOrientation.setStatusBarVisible(mContext, false);
      mVideoFullScreenContainer.setVisibility(View.GONE);
      // 竖屏
      if (getParent() == null) {
        container.addView(this, mVideoViewParams);
      }
    }
    for (VDVideoViewLayerContext item : mVDVideoViewLayerData.getLayerList()) {
      if (item.mIsComplexLayerType) {
        // 有复杂模式才进行横竖屏转换
        if (controller != null) item.setFullMode(isFullScreen, controller.isInsertAD());
      }
    }
    mVideoView.endChangeParentView();
    mVideoView.requestVideoLayout();
  }
 private void updateDataVoice() {
   if (mMobileDataVoiceVisible) {
     mMobileSignalData.setImageResource(mMobileSignalDataId);
     mMobileSignalVoice.setImageResource(mMobileSignalVoiceId);
     mMobileDataVoiceGroup.setVisibility(View.VISIBLE);
   } else {
     mMobileDataVoiceGroup.setVisibility(View.GONE);
   }
 }
  // Run after each indicator change.
  private void apply() {
    if (mWifiGroup == null) return;

    if (mWifiVisible) {
      mWifiGroup.setVisibility(View.VISIBLE);
      mWifi.setImageResource(mWifiStrengthId);
      mWifiActivity.setImageResource(mWifiActivityId);
      mWifiGroup.setContentDescription(mWifiDescription);
    } else {
      mWifiGroup.setVisibility(View.GONE);
    }

    if (DEBUG)
      Slog.d(
          TAG,
          String.format(
              "wifi: %s sig=%d act=%d",
              (mWifiVisible ? "VISIBLE" : "GONE"), mWifiStrengthId, mWifiActivityId));

    if (mMobileVisible && !mIsAirplaneMode) {
      mMobileGroup.setVisibility(View.VISIBLE);
      mMobile.setImageResource(mMobileStrengthId);
      mMobileActivity.setImageResource(mMobileActivityId);
      mMobileType.setImageResource(mMobileTypeId);
      mMobileGroup.setContentDescription(mMobileTypeDescription + " " + mMobileDescription);
    } else {
      mMobileGroup.setVisibility(View.GONE);
    }

    if (mIsAirplaneMode) {
      mAirplane.setVisibility(View.VISIBLE);
      mAirplane.setImageResource(mAirplaneIconId);
    } else {
      mAirplane.setVisibility(View.GONE);
    }

    if (mMobileVisible && mWifiVisible && mIsAirplaneMode) {
      mSpacer.setVisibility(View.INVISIBLE);
    } else {
      mSpacer.setVisibility(View.GONE);
    }

    if (DEBUG)
      Slog.d(
          TAG,
          String.format(
              "mobile: %s sig=%d act=%d typ=%d",
              (mMobileVisible ? "VISIBLE" : "GONE"),
              mMobileStrengthId,
              mMobileActivityId,
              mMobileTypeId));

    mMobileType.setVisibility(!mWifiVisible ? View.VISIBLE : View.GONE);

    updateSettings();
  }
  private void displayTags(SessionDetailModel data) {
    if (data.getTagMetadata() == null || data.getTagsString() == null) {
      mTagsContainer.setVisibility(View.GONE);
      return;
    }

    if (TextUtils.isEmpty(data.getTagsString())) {
      mTagsContainer.setVisibility(View.GONE);
    } else {
      mTagsContainer.setVisibility(View.VISIBLE);
      mTags.removeAllViews();
      LayoutInflater inflater = LayoutInflater.from(getContext());
      String[] tagIds = data.getTagsString().split(",");

      List<TagMetadata.Tag> tags = new ArrayList<TagMetadata.Tag>();
      for (String tagId : tagIds) {
        if (Config.Tags.SESSIONS.equals(tagId) || Config.Tags.SPECIAL_KEYNOTE.equals(tagId)) {
          continue;
        }

        TagMetadata.Tag tag = data.getTagMetadata().getTag(tagId);
        if (tag == null) {
          continue;
        }

        tags.add(tag);
      }

      if (tags.size() == 0) {
        mTagsContainer.setVisibility(View.GONE);
        return;
      }

      Collections.sort(tags, TagMetadata.TAG_DISPLAY_ORDER_COMPARATOR);

      for (final TagMetadata.Tag tag : tags) {
        TextView chipView =
            (TextView) inflater.inflate(R.layout.include_session_tag_chip, mTags, false);
        chipView.setText(tag.getName());
        chipView.setContentDescription(getString(R.string.talkback_button, tag.getName()));
        chipView.setOnClickListener(
            new View.OnClickListener() {
              @Override
              public void onClick(View view) {
                Intent intent =
                    new Intent(getContext(), ExploreSessionsActivity.class)
                        .putExtra(ExploreSessionsActivity.EXTRA_FILTER_TAG, tag.getId())
                        .addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
                startActivity(intent);
              }
            });

        mTags.addView(chipView);
      }
    }
  }
示例#12
0
 public void showLoading(boolean yes) {
   if (yes) {
     mContext.findViewById(R.id.examine_loading).setVisibility(View.VISIBLE);
     mCategoryLayout.setVisibility(View.GONE);
     mQuestionsLayout.setVisibility(View.GONE);
     mFixViewLayout.setVisibility(View.GONE);
   } else {
     mContext.findViewById(R.id.examine_loading).setVisibility(View.GONE);
   }
 }
示例#13
0
  /** prevent bottom view get any touch event. Especially in LayDown mode. */
  private void safeBottomView() {
    Status status = getOpenStatus();
    ViewGroup bottom = getBottomView();

    if (status == Status.Close) {
      if (bottom.getVisibility() != INVISIBLE) bottom.setVisibility(INVISIBLE);
    } else {
      if (bottom.getVisibility() != VISIBLE) bottom.setVisibility(VISIBLE);
    }
  }
 private void showOffline() {
   // show offline container
   ViewGroup containerContent = (ViewGroup) mRootView.findViewById(R.id.container_content);
   ViewGroup containerProgress = (ViewGroup) mRootView.findViewById(R.id.container_progress);
   ViewGroup containerOffline = (ViewGroup) mRootView.findViewById(R.id.container_offline);
   containerContent.setVisibility(View.GONE);
   containerProgress.setVisibility(View.GONE);
   containerOffline.setVisibility(View.VISIBLE);
   mViewState = ViewState.OFFLINE;
 }
示例#15
0
 /** Toggles visibility of chart/data UI parts. */
 protected void toggleChartData(MenuItem item) {
   if (View.VISIBLE == chartframe.getVisibility()) {
     chartframe.setVisibility(View.GONE);
     dataframe.setVisibility(View.VISIBLE);
     item.setIcon(this.getResources().getDrawable(R.drawable.icon_graph));
   } else {
     chartframe.setVisibility(View.VISIBLE);
     dataframe.setVisibility(View.GONE);
     item.setIcon(this.getResources().getDrawable(R.drawable.icon_data));
   }
 }
 private void showEmpty() {
   // show empty container
   ViewGroup containerContent = (ViewGroup) mRootView.findViewById(R.id.container_content);
   ViewGroup containerProgress = (ViewGroup) mRootView.findViewById(R.id.container_progress);
   ViewGroup containerOffline = (ViewGroup) mRootView.findViewById(R.id.container_offline);
   ViewGroup containerEmpty = (ViewGroup) mRootView.findViewById(R.id.container_empty);
   containerContent.setVisibility(View.GONE);
   containerProgress.setVisibility(View.GONE);
   containerOffline.setVisibility(View.GONE);
   containerEmpty.setVisibility(View.VISIBLE);
   mViewState = ViewState.EMPTY;
 }
示例#17
0
 private void loadData() {
   for (int i = mNumVisible - 1; i >= 0; i--) {
     ViewGroup parent = (ViewGroup) viewCollection.get(i);
     int index = (mIndex + mNumVisible - 1) - i;
     if (index > mAdapter.getCount() - 1) {
       parent.setVisibility(View.GONE);
     } else {
       View child = mAdapter.getView(index, getContentView(), this);
       parent.addView(child);
       parent.setVisibility(View.VISIBLE);
     }
   }
 }
 private void visibilitySwitcher(boolean isSignedIn) {
   if (isSignedIn) {
     userProfileContainer.setVisibility(View.VISIBLE);
     getStartedContainer.setVisibility(View.INVISIBLE);
     swipeRefreshLayout.setVisibility(View.VISIBLE);
     signInButton.setText(getString(R.string.sign_out_button));
   } else {
     userProfileContainer.setVisibility(View.INVISIBLE);
     getStartedContainer.setVisibility(View.VISIBLE);
     swipeRefreshLayout.setVisibility(View.GONE);
     signInButton.setText(getString(R.string.sign_in_button));
   }
 }
示例#19
0
  public void showType(final String typeCode) {
    ViewGroup v = (ViewGroup) this.expandBarResultListener;

    resetResult();
    if (typeCode.equals(ServiceCode.BANK_TRANSFER_PAYMENT)) {
      v.setVisibility(View.VISIBLE);
    } else if (typeCode.equals(ServiceCode.TRANSFER_ENTRY_PAYMENT)) {
      v.setVisibility(View.VISIBLE);
    } else if (typeCode.equals(ServiceCode.SIM_TOP_UP)) {
      v.setVisibility(View.GONE);
    } else if (typeCode.equals(ServiceCode.CARD_RECHARGE_PAYMENT)) {
      v.setVisibility(View.GONE);
    }
  }
示例#20
0
 /** package* */
 void toggleWordWrap() {
   ViewGroup vSrc = this.mWordWrap ? this.mWordWrapView : this.mNoWordWrapView;
   ViewGroup vDst = this.mWordWrap ? this.mNoWordWrapView : this.mWordWrapView;
   ViewGroup vSrcParent =
       this.mWordWrap ? this.mWordWrapView : (ViewGroup) this.mNoWordWrapView.getChildAt(0);
   ViewGroup vDstParent =
       this.mWordWrap ? (ViewGroup) this.mNoWordWrapView.getChildAt(0) : this.mWordWrapView;
   vSrc.setVisibility(View.GONE);
   vSrcParent.removeView(this.mEditor);
   vDstParent.addView(this.mEditor);
   vDst.setVisibility(View.VISIBLE);
   vDst.scrollTo(0, 0);
   this.mWordWrap = !this.mWordWrap;
 }
    public void update(int position) {
      if (!isHeaderShow) {
        tvTitle.setText(topic.getTitle());
        tvTab.setText(topic.isTop() ? R.string.tab_top : topic.getTab().getNameId());
        tvTab.setBackgroundResource(
            topic.isTop()
                ? R.drawable.topic_tab_top_background
                : R.drawable.topic_tab_normal_background);
        tvTab.setTextColor(
            activity
                .getResources()
                .getColor(topic.isTop() ? android.R.color.white : R.color.text_color_secondary));
        tvVisitCount.setText(topic.getVisitCount() + "次浏览");
        Picasso.with(activity)
            .load(topic.getAuthor().getAvatarUrl())
            .placeholder(R.drawable.image_placeholder)
            .into(imgAvatar);
        tvLoginName.setText(topic.getAuthor().getLoginName());
        tvCreateTime.setText(
            activity.getString(R.string.post_at_$)
                + FormatUtils.getRecentlyTimeText(topic.getCreateAt()));
        iconGood.setVisibility(topic.isGood() ? View.VISIBLE : View.GONE);

        // TODO 这里直接使用WebView,有性能问题
        webReplyContent.loadRenderedContent(topic.getRenderedContent());

        isHeaderShow = true;
      }

      layoutNoReply.setVisibility(topic.getReplies().size() > 0 ? View.GONE : View.VISIBLE);
    }
  /** Rebuild the editor to match our underlying {@link #mEntityDeltaList} object. */
  private void bindEditor() {
    if (mEntityDeltaList == null) {
      throw new IllegalStateException();
    }

    // If no valid raw contact (to insert the data) was found, we won't have an editable
    // account type to use. In this case, display an error message and hide the "OK" button.
    if (mIsReadOnly) {
      mReadOnlyWarningView.setText(getString(R.string.contact_read_only));
      mReadOnlyWarningView.setVisibility(View.VISIBLE);
      mEditorContainerView.setVisibility(View.GONE);
      findViewById(R.id.btn_done).setVisibility(View.GONE);
      // Nothing more to be done, just show the UI
      showDialogContent();
      return;
    }

    // Otherwise display an editor that allows the user to add the data to this raw contact.
    for (DataKind kind : mEditableAccountType.getSortedDataKinds()) {
      // Skip kind that are not editable
      if (!kind.editable) continue;
      if (mMimetype.equals(kind.mimeType)) {
        for (ValuesDelta valuesDelta : mRawContactDelta.getMimeEntries(mMimetype)) {
          // Skip entries that aren't visible
          if (!valuesDelta.isVisible()) continue;
          if (valuesDelta.isInsert()) {
            inflateEditorView(kind, valuesDelta, mRawContactDelta);
            return;
          }
        }
      }
    }
  }
示例#23
0
  public static void hideProgress(ViewGroup mCover) {
    if (null == mCover) return;

    if (mCover.getVisibility() == View.VISIBLE) {
      mCover.setVisibility(View.GONE);
    }
  }
 @Override
 public void onHideCustomView() {
   // This method must be manually (internally) called on video end in the case of VideoView
   // (typically API level <11)
   // This method must be manually (internally) called on video end in the case of
   // HTML5VideoFullScreen (typically API level 11+) because it's not always called automatically
   // This method must be manually (internally) called on back key press (from this class'
   // onBackPressed() method)
   if (isVideoFullscreen()) {
     // Hide the video view, remove it, and show the non-video view
     activityVideoView.setVisibility(View.GONE); // 播放视频的
     activityVideoView.removeView(videoViewContainer);
     activityNonVideoView.setVisibility(View.VISIBLE);
     ((Activity) activityNonVideoView.getContext())
         .setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); // 强制当前页面在手机中竖屏
     // Call back
     if (videoViewCallback != null) videoViewCallback.onCustomViewHidden();
     // Reset video related variables
     isVideoFullscreen = false;
     videoViewContainer = null;
     videoViewCallback = null;
     // Notify full-screen change
     if (toggledFullscreenCallback != null) {
       toggledFullscreenCallback.toggledFullscreen(false);
     }
   }
 }
示例#25
0
        @Override
        public void handleMessage(Message msg) {
          if (msg.what == 0) {
            // 加载成功
            if (_appList.size() == 0) {
              // 没有数据
              _loadingTextView.setText("暂时没有数据!");
              _loadingAnimation.cancel();
              _loadingImageView.setAnimation(null);
              _loadingImageView.setVisibility(View.GONE);
            } else {
              // TODO: update
              _adapter.notifyDataSetChanged();
              _listView.setVisibility(View.VISIBLE);

              _loadingAnimation.cancel();
              _loadingImageView.setAnimation(null);
              _loadingLayer.setVisibility(View.INVISIBLE);
            }
          } else {
            _loadingAnimation.cancel();
            _loadingImageView.setAnimation(null);
            _loadingImageView.setVisibility(View.GONE);
            _loadingTextView.setText("加载数据失败,请稍后再试一次!");
          }
        }
示例#26
0
 public static void setActionButton(
     Activity activity, int id, int icon, View.OnClickListener listener) {
   ViewGroup button = (ViewGroup) activity.findViewById(id);
   button.setOnClickListener(listener);
   ((ImageView) button.findViewById(R.id.icon)).setImageResource(icon);
   button.setVisibility(View.VISIBLE);
 }
示例#27
0
  public void showCustomView(View view, WebChromeClient.CustomViewCallback callback) {
    // This code is adapted from the original Android Browser code, licensed under the Apache
    // License, Version 2.0
    Log.d(TAG, "showing Custom View");
    // if a view already exists then immediately terminate the new one
    if (mCustomView != null) {
      callback.onCustomViewHidden();
      return;
    }

    // Store the view and its callback for later (to kill it properly)
    mCustomView = view;
    mCustomViewCallback = callback;

    // Add the custom view to its container.
    ViewGroup parent = (ViewGroup) this.getParent();
    parent.addView(view, COVER_SCREEN_GRAVITY_CENTER);

    // Hide the content view.
    this.setVisibility(View.GONE);

    // Finally show the custom view container.
    parent.setVisibility(View.VISIBLE);
    parent.bringToFront();
  }
示例#28
0
 public HeaderFactory(ViewGroup mRootView) {
   this.mRootView = mRootView;
   mRootView.setVisibility(View.VISIBLE);
   mRootView.setBackgroundColor(Color.parseColor(setParentBackgroundColor()));
   onClickListener = setOnClickListener();
   setUp();
 }
  @Subscribe
  public void scanQRcodeEvent(ScanCodeEvent event) {
    progressBarLlyt = (ViewGroup) findViewById(R.id.progress_bar_llyt);
    progressBarLlyt.setVisibility(View.VISIBLE);

    String imagePath = event.getImageUrl();
    if (!TextUtils.isEmpty(imagePath)) {
      int myWidth = getResources().getDisplayMetrics().widthPixels;
      int myHeight = getResources().getDisplayMetrics().heightPixels;

      Glide.with(getApplicationContext())
          .load("file://" + imagePath)
          .asBitmap()
          .into(
              new SimpleTarget<Bitmap>(myWidth, myHeight) {
                @Override
                public void onResourceReady(
                    Bitmap resource, GlideAnimation<? super Bitmap> glideAnimation) {
                  progressBarLlyt.setVisibility(View.GONE);

                  Result resultZxing =
                      new DecodeUtils(DecodeUtils.DECODE_DATA_MODE_ALL).decodeWithZxing(resource);
                  handleDecode(resultZxing, null);
                }
              });
    }
  }
示例#30
0
  private void updateWeatherInfo(WeatherForecast weatherForecast) {
    if (!weatherForecast.isSuccessed()) {
      notifier.alert(getString(R.string.weather_not_updated), Toast.LENGTH_LONG);
      return;
    }

    weatherContainer.setVisibility(View.VISIBLE);
    this.weatherForecast = weatherForecast;
    swipeIndicatorPresenter =
        new SwipeIndicatorPresenter(indicatorLayout, weatherForecast.getForecastList().size());

    updateUI();
    viewPager.setAdapter(new WeatherPagerAdapter(this, weatherForecast.getForecastList()));
    viewPager.setOnPageChangeListener(
        new ViewPager.OnPageChangeListener() {
          @Override
          public void onPageScrolled(int i, float v, int i2) {}

          @Override
          public void onPageSelected(int i) {
            updateUI(i);
          }

          @Override
          public void onPageScrollStateChanged(int i) {}
        });
  }