private void initViewPagerAndTabs() {
   ViewPager viewPager = (ViewPager) findViewById(R.id.viewPager);
   PagerAdapter pagerAdapter = new PagerAdapter(getSupportFragmentManager());
   pagerAdapter.addFragment(PartThreeFragment.createInstance(20), "One");
   pagerAdapter.addFragment(PartThreeFragment.createInstance(4), "Two");
   viewPager.setAdapter(pagerAdapter);
   TabLayout tabLayout = (TabLayout) findViewById(R.id.tabLayout);
   tabLayout.setupWithViewPager(viewPager);
 }
Example #2
0
 void updateAdapter(PagerAdapter oldAdapter, PagerAdapter newAdapter) {
   if (oldAdapter != null) {
     oldAdapter.unregisterDataSetObserver(mPageListener);
   }
   if (newAdapter != null) {
     newAdapter.registerDataSetObserver(mPageListener);
   }
   if (mPager != null) {
     mLastKnownCurrentPage = -1;
     mLastKnownPositionOffset = -1;
     updateText(mPager.getCurrentItem(), newAdapter);
     requestLayout();
   }
 }
Example #3
0
 /**
  * Adds a new slide
  *
  * @param fragment Instance of Fragment which should be added as slide
  */
 public void addSlide(@NonNull Fragment fragment) {
   fragments.add(fragment);
   if (isWizardMode) {
     setOffScreenPageLimit(fragments.size());
   }
   mPagerAdapter.notifyDataSetChanged();
 }
Example #4
0
  /**
   * Called before a slide change happens. By returning false, one can disallow the slide change.
   *
   * @return true, if the slide change should be allowed, else false
   */
  private boolean handleBeforeSlideChanged() {
    Fragment currentFragment = mPagerAdapter.getItem(pager.getCurrentItem());

    LogHelper.d(
        TAG,
        String.format(
            "User wants to move away from slide: %s. Checking if this should be allowed...",
            currentFragment));

    // Check if the current fragment implements ISlidePolicy, else a change is always allowed
    if (currentFragment instanceof ISlidePolicy) {
      ISlidePolicy slide = (ISlidePolicy) currentFragment;

      LogHelper.d(TAG, "Current fragment implements ISlidePolicy.");

      // Check if policy is fulfilled
      if (!slide.isPolicyRespected()) {
        LogHelper.d(TAG, "Slide policy not respected, denying change request.");
        return false;
      }
    }

    LogHelper.d(TAG, "Change request will be allowed.");
    return true;
  }
Example #5
0
  private void handleIllegalSlideChangeAttempt() {
    Fragment currentFragment = mPagerAdapter.getItem(pager.getCurrentItem());

    if (currentFragment != null && currentFragment instanceof ISlidePolicy) {
      ISlidePolicy slide = (ISlidePolicy) currentFragment;

      if (!slide.isPolicyRespected()) {
        slide.onUserIllegallyRequestedNextPage();
      }
    }
  }
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main_activity);

    final ActionBar actionBar = getActionBar();
    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

    viewPager = (ViewPager) findViewById(R.id.pager);
    PagerAdapter adapter = new PagerAdapter(getSupportFragmentManager(), this);
    viewPager.setAdapter(adapter);
    viewPager.setOnPageChangeListener(
        new ViewPager.SimpleOnPageChangeListener() {
          @Override
          public void onPageSelected(int position) {
            actionBar.setSelectedNavigationItem(position);
          }
        });

    for (int i = 0; i < adapter.getCount(); i++) {
      actionBar.addTab(actionBar.newTab().setText(adapter.getPageTitle(i)).setTabListener(this));
    }
  }
Example #7
0
  void updateText(int currentItem, PagerAdapter adapter) {
    final int itemCount = adapter != null ? adapter.getCount() : 0;
    mUpdatingText = true;

    CharSequence text = null;
    if (currentItem >= 1 && adapter != null) {
      text = adapter.getPageTitle(currentItem - 1);
    }
    mPrevText.setText(text);

    mCurrText.setText(adapter != null ? adapter.getPageTitle(currentItem) : null);

    text = null;
    if (currentItem + 1 < itemCount && adapter != null) {
      text = adapter.getPageTitle(currentItem + 1);
    }
    mNextText.setText(text);

    // Measure everything
    final int width = getWidth() - getPaddingLeft() - getPaddingRight();
    final int childHeight = getHeight() - getPaddingTop() - getPaddingBottom();
    final int childWidthSpec =
        MeasureSpec.makeMeasureSpec((int) (width * 0.8f), MeasureSpec.AT_MOST);
    final int childHeightSpec = MeasureSpec.makeMeasureSpec(childHeight, MeasureSpec.EXACTLY);
    mPrevText.measure(childWidthSpec, childHeightSpec);
    mCurrText.measure(childWidthSpec, childHeightSpec);
    mNextText.measure(childWidthSpec, childHeightSpec);

    mLastKnownCurrentPage = currentItem;

    if (!mUpdatingPositions) {
      updateTextPositions(currentItem, mLastKnownPositionOffset);
    }

    mUpdatingText = false;
  }
Example #8
0
 @NonNull
 public List<MyFragment> getSlides() {
   return mPagerAdapter.getFragments();
 }
Example #9
0
 public void addSlide(@NonNull MyFragment fragment) {
   fragments.add(fragment);
   mPagerAdapter.notifyDataSetChanged();
 }
Example #10
0
 public void addSlide(@NonNull Fragment fragment, @NonNull Context context) {
   fragments.add(Fragment.instantiate(context, fragment.getClass().getName()));
   mPagerAdapter.notifyDataSetChanged();
 }
Example #11
0
 private void initFragment() {
   ViewPager viewPager = (ViewPager) findViewById(R.id.viewPager);
   PagerAdapter pagerAdapter = new PagerAdapter(getSupportFragmentManager());
   pagerAdapter.addFragment(DetailsFragment.createInstance(_deposit.get_id()), "Details");
   viewPager.setAdapter(pagerAdapter);
 }