Example usage for android.support.v4.view ViewPager setOnPageChangeListener

List of usage examples for android.support.v4.view ViewPager setOnPageChangeListener

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  4. android.support.v4.view.*
  5. ViewPager
  6. setOnPageChangeListener

Introduction

In this page you can find the example usage for android.support.v4.view ViewPager setOnPageChangeListener.

Prototype

public void setOnPageChangeListener(OnPageChangeListener listener)

Source Link

Document

Set a listener that will be invoked whenever the page changes or is incrementally scrolled.

Usage

From source file:com.bei.test.view.tab.PagerSlidingTabStrip.java

public void setViewPager(ViewPager pager) {
    this.mPager = pager;
    if (pager.getAdapter() == null) {
        throw new IllegalStateException("ViewPager does not have adapter instance.");
    }/* w  ww. java  2s  .c  o m*/

    isCustomTabs = pager.getAdapter() instanceof CustomTabProvider;
    pager.setOnPageChangeListener(mPageListener);
    pager.getAdapter().registerDataSetObserver(mAdapterObserver);
    mAdapterObserver.setAttached(true);
    notifyDataSetChanged();
}

From source file:com.github.shareme.gwspagerslidingtabstrip.library.PagerSlidingTabStrip.java

@SuppressWarnings("deprecation")
public void setViewPager(ViewPager pager) {
    this.mPager = pager;
    if (pager.getAdapter() == null) {
        throw new IllegalStateException("ViewPager does not have adapter instance.");
    }/*from   ww  w  .  j a va 2 s. com*/

    isCustomTabs = pager.getAdapter() instanceof CustomTabProvider;
    //TODO: depreciated fix
    pager.setOnPageChangeListener(mPageListener);
    pager.getAdapter().registerDataSetObserver(mAdapterObserver);
    mAdapterObserver.setAttached(true);
    notifyDataSetChanged();
}

From source file:com.qingsongchou.library.widget.tab.PagerSlidingTabStrip.java

public void setViewPager(ViewPager pager) {
    this.mPager = pager;
    if (pager.getAdapter() == null) {
        throw new IllegalStateException("ViewPager does not have adapter instance.");
    }/*from  w ww  . j  a v a2 s  .co  m*/

    isCustomTabs = pager.getAdapter() instanceof CustomTabProvider;
    pager.setOnPageChangeListener(mPageListener);
    pager.getAdapter().registerDataSetObserver(mAdapterObserver);
    mAdapterObserver.setAttached(true);
    configTab();
}

From source file:com.audiokernel.euphonyrmt.MainMenuActivity.java

private ViewPager initializeNowPlayingPager() {
    final ViewPager nowPlayingPager = (ViewPager) findViewById(R.id.pager);
    if (nowPlayingPager != null) {
        nowPlayingPager.setAdapter(new MainMenuPagerAdapter());
        nowPlayingPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
            @Override/*from  w  w  w  .  ja  v a2 s  . c  o  m*/
            public void onPageSelected(final int position) {
                refreshQueueIndicator(position != 0);
            }
        });
    }

    return nowPlayingPager;
}

From source file:ti.modules.titanium.ui.widget.TiUIScrollableView.java

private ViewPager buildViewPager(Context context, ViewPagerAdapter adapter) {
    ViewPager pager = (new ViewPager(context) {
        @Override/* w  ww.ja  v  a2s .  c  om*/
        public boolean onTouchEvent(MotionEvent event) {
            if (mEnabled) {
                return super.onTouchEvent(event);
            }

            return false;
        }

        @Override
        public boolean onInterceptTouchEvent(MotionEvent event) {
            if (mEnabled) {
                return super.onInterceptTouchEvent(event);
            }

            return false;
        }
    });

    pager.setAdapter(adapter);
    pager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
        private boolean isValidScroll = false;
        private boolean justFiredDragEnd = false;

        @Override
        public void onPageScrollStateChanged(int scrollState) {
            if ((scrollState == ViewPager.SCROLL_STATE_IDLE) && isValidScroll) {
                int oldIndex = mCurIndex;

                if (mCurIndex >= 0) {
                    if (oldIndex >= 0 && oldIndex != mCurIndex && oldIndex < mViews.size()) {
                        // Don't know what these focused and unfocused
                        // events are good for, but they were in our previous
                        // scrollable implementation.
                        // cf. https://github.com/appcelerator/titanium_mobile/blob/20335d8603e2708b59a18bafbb91b7292278de8e/android/modules/ui/src/ti/modules/titanium/ui/widget/TiScrollableView.java#L260
                        TiEventHelper.fireFocused(mViews.get(oldIndex));
                    }

                    TiEventHelper.fireUnfocused(mViews.get(mCurIndex));
                    if (oldIndex >= 0) {
                        // oldIndex will be -1 if the view has just
                        // been created and is setting currentPage
                        // to something other than 0. In that case we
                        // don't want a `scrollend` to fire.
                        ((ScrollableViewProxy) proxy).fireScrollEnd(mCurIndex, mViews.get(mCurIndex));
                    }

                    if (shouldShowPager()) {
                        showPager();
                    }
                }

                // If we don't use this state variable to check if it's a valid
                // scroll, this event will fire when the view is first created
                // because on creation, the scroll state is initialized to 
                // `idle` and this handler is called.
                isValidScroll = false;
            } else if (scrollState == ViewPager.SCROLL_STATE_SETTLING) {
                ((ScrollableViewProxy) proxy).fireDragEnd(mCurIndex, mViews.get(mCurIndex));

                // Note that we just fired a `dragend` so the `onPageSelected`
                // handler below doesn't fire a `scrollend`.  Read below comment.
                justFiredDragEnd = true;
            }
        }

        @Override
        public void onPageSelected(int page) {

            // If we didn't just fire a `dragend` event then this is the case
            // where a user drags the view and settles it on a different view.
            // Since the OS settling logic is never run, the
            // `onPageScrollStateChanged` handler is never run, and therefore
            // we forgot to inform the Javascripters that the user just scrolled
            // their thing.

            if (!justFiredDragEnd && mCurIndex != -1) {
                ((ScrollableViewProxy) proxy).fireScrollEnd(mCurIndex, mViews.get(mCurIndex));

                if (shouldShowPager()) {
                    showPager();
                }
            }
        }

        @Override
        public void onPageScrolled(int positionRoundedDown, float positionOffset, int positionOffsetPixels) {
            isValidScroll = true;

            // When we touch and drag the view and hold it inbetween the second
            // and third sub-view, this function will have been called with values
            // similar to:
            //      positionRoundedDown:   1
            //      positionOffset:          0.5
            // ie, the first parameter is always rounded down; the second parameter
            // is always just an offset between the current and next view, it does
            // not take into account the current view.

            // If we add positionRoundedDown to positionOffset, positionOffset will
            // have the 'correct' value; ie, will be a natural number when we're on
            // one particular view, something.5 when inbetween views, etc.
            float positionFloat = positionOffset + positionRoundedDown;

            // `positionFloat` can now be used to calculate the correct value for
            // the current index. We add 0.5 so that positionFloat will be rounded
            // half up; ie, if it has a value of 1.5, it will be rounded up to 2; if
            // it has a value of 1.4, it will be rounded down to 1.
            mCurIndex = (int) Math.floor(positionFloat + 0.5);
            ((ScrollableViewProxy) proxy).fireScroll(mCurIndex, positionFloat, mViews.get(mCurIndex));

            // Note that we didn't just fire a `dragend`.  See the above comment
            // in `onPageSelected`.
            justFiredDragEnd = false;
        }
    });
    return pager;
}

From source file:piuk.blockchain.android.ui.WalletAddressesActivity.java

@Override
protected void onCreate(final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.address_book_content);

    final ActionBarFragment actionBar = getActionBarFragment();

    actionBar.setPrimaryTitle(R.string.address_book_activity_title);

    actionBar.setBack(new OnClickListener() {
        public void onClick(final View v) {
            finish();/*from ww w. j  ava 2s .  c o  m*/
        }
    });

    actionBar.addButton(android.R.drawable.ic_menu_more).setOnClickListener(new OnClickListener() {
        public void onClick(final View v) {
            openOptionsMenu();
        }
    });

    final ViewPager pager = (ViewPager) findViewById(R.id.address_book_pager);

    if (pager != null) {
        final ViewPagerTabs pagerTabs = (ViewPagerTabs) findViewById(R.id.address_book_pager_tabs);
        pagerTabs.addTabLabels(R.string.address_book_list_receiving_title,
                R.string.address_book_list_archived_title, R.string.address_book_list_sending_title);

        final ProxyOnPageChangeListener pagerListener = new ProxyOnPageChangeListener(pagerTabs) {
            @Override
            public void onPageSelected(final int position) {
                super.onPageSelected(position);

                pagerPosition = position;
            }
        };

        final PagerAdapter pagerAdapter = new PagerAdapter(getSupportFragmentManager());

        pager.getCurrentItem();

        pager.setAdapter(pagerAdapter);
        pager.setOnPageChangeListener(pagerListener);
        final int position = getIntent().getBooleanExtra(EXTRA_SENDING, true) == true ? 2 : 0;
        pager.setCurrentItem(position);
        pager.setPageMargin(2);
        pager.setPageMarginDrawable(R.color.background_less_bright);

        pagerListener.onPageSelected(position);
        pagerListener.onPageScrolled(position, 0, 0);

        archivedAddressesFragment = new WalletArchivedAddressesFragment();
        activeAddressesFragment = new WalletActiveAddressesFragment();
        sendingAddressesFragment = new SendingAddressesFragment();
    }

    updateFragments();
}

From source file:com.google.samples.apps.iosched.ui.SessionLivestreamActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    requestWindowFeature(Window.FEATURE_ACTION_BAR_OVERLAY);
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_session_livestream);
    mIsTablet = UIUtils.isTablet(this);

    // Set up YouTube player
    mYouTubeFragment = (YouTubePlayerFragment) getFragmentManager().findFragmentById(R.id.livestream_player);
    mYouTubeFragment.initialize(Config.YOUTUBE_API_KEY, this);

    // Views that are common over all layouts
    mMainLayout = (LinearLayout) findViewById(R.id.livestream_mainlayout);
    adjustMainLayoutForActionBar();//from   w  w w  .  j  a v a2s.c  o m
    mPlayerContainer = (LinearLayout) findViewById(R.id.livestream_player_container);
    mFullscreenCaptions = (FrameLayout) findViewById(R.id.fullscreen_captions);
    final LayoutParams params = (LayoutParams) mFullscreenCaptions.getLayoutParams();
    params.setMargins(0, getActionBarHeightPx(), 0, getActionBarHeightPx());
    mFullscreenCaptions.setLayoutParams(params);
    mTabsContentLayout = (LinearLayout) findViewById(R.id.livestream_tabs_layout);

    // Set up ViewPager and adapter
    ViewPager viewPager = (ViewPager) findViewById(R.id.livestream_pager);
    viewPager.setOffscreenPageLimit(2);
    viewPager.setPageMargin(getResources().getDimensionPixelSize(R.dimen.page_margin_width));
    mTabsAdapter = new TabsAdapter(getFragmentManager());
    viewPager.setAdapter(mTabsAdapter);
    viewPager.setOnPageChangeListener(mTabsAdapter);

    if (mIsTablet) {
        // Tablet UI specific views
        mVideoLayout = (LinearLayout) findViewById(R.id.livestream_video_layout);
    }

    mTabsAdapter.addTab(getString(R.string.session_livestream_info), new SessionSummaryFragment(),
            TABNUM_SESSION_SUMMARY);

    mTabsAdapter.addTab(getString(R.string.session_livestream_captions), new SessionCaptionsFragment(),
            TABNUM_LIVE_CAPTIONS);

    // Set up sliding tabs w/ViewPager
    SlidingTabLayout slidingTabLayout = (SlidingTabLayout) findViewById(R.id.livestream_sliding_tabs);
    slidingTabLayout.setCustomTabView(R.layout.tab_indicator, android.R.id.text1);

    Resources res = getResources();
    slidingTabLayout.setSelectedIndicatorColors(res.getColor(R.color.tab_selected_strip));
    slidingTabLayout.setDistributeEvenly(true);
    slidingTabLayout.setViewPager(viewPager);

    // Reload all other data in this activity
    reloadFromIntent(getIntent());

    // Update layout based on current configuration
    updateLayout(getResources().getConfiguration());

    // Set up action bar
    if (!mLoadFromExtras) {
        // Start sessions query to populate action bar navigation spinner
        getLoaderManager().initLoader(SessionsQuery._TOKEN, null, this);
        mLivestreamAdapter = new LivestreamAdapter(getActionBar().getThemedContext());
    }
}

From source file:net.ibaixin.chat.view.PagerSlidingTabStrip.java

public void setViewPager(ViewPager viewPager) {
    if (mViewPager == viewPager) {
        return;/*from   w w  w .j ava  2  s  .  co  m*/
    }
    if (mViewPager != null) {
        mViewPager.setOnPageChangeListener(null);
    }
    final PagerAdapter adapter = viewPager.getAdapter();
    if (adapter == null) {
        throw new IllegalStateException("ViewPager does not have adapter instance.");
    }

    this.mViewPager = viewPager;

    //        viewPager.setOnPageChangeListener(pageListener);
    viewPager.setOnPageChangeListener(this);

    notifyDataSetChanged();
}

From source file:com.nachiket.titan.LibraryActivity.java

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

    if (state == null) {
        checkForLaunch(getIntent());//from   ww w . jav  a 2  s  . co m
    }

    setContentView(R.layout.library_content);

    mSearchBox = findViewById(R.id.search_box);

    mTextFilter = (TextView) findViewById(R.id.filter_text);
    mTextFilter.addTextChangedListener(this);

    mClearButton = findViewById(R.id.clear_button);
    mClearButton.setOnClickListener(this);

    mLimiterScroller = (HorizontalScrollView) findViewById(R.id.limiter_scroller);
    mLimiterViews = (ViewGroup) findViewById(R.id.limiter_layout);

    LibraryPagerAdapter pagerAdapter = new LibraryPagerAdapter(this, mLooper);
    mPagerAdapter = pagerAdapter;

    ViewPager pager = (ViewPager) findViewById(R.id.pager);
    pager.setAdapter(pagerAdapter);
    mViewPager = pager;

    SharedPreferences settings = PlaybackService.getSettings(this);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
        pager.setOnPageChangeListener(pagerAdapter);

        View controls = getLayoutInflater().inflate(R.layout.actionbar_controls, null);
        mTitle = (TextView) controls.findViewById(R.id.title);
        mArtist = (TextView) controls.findViewById(R.id.artist);
        mCover = (ImageView) controls.findViewById(R.id.cover);
        controls.setOnClickListener(this);
        mActionControls = controls;
    } else {
        TabPageIndicator tabs = new TabPageIndicator(this);
        tabs.setViewPager(pager);
        tabs.setOnPageChangeListener(pagerAdapter);
        mTabs = tabs;

        LinearLayout content = (LinearLayout) findViewById(R.id.content);
        content.addView(tabs, 0, new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT,
                LinearLayout.LayoutParams.WRAP_CONTENT));

        if (settings.getBoolean(PrefKeys.CONTROLS_IN_SELECTOR, false)) {
            getLayoutInflater().inflate(R.layout.library_controls, content, true);

            mControls = findViewById(R.id.controls);

            mTitle = (TextView) mControls.findViewById(R.id.title);
            mArtist = (TextView) mControls.findViewById(R.id.artist);
            mCover = (ImageView) mControls.findViewById(R.id.cover);
            View previous = mControls.findViewById(R.id.previous);
            mPlayPauseButton = (ImageButton) mControls.findViewById(R.id.play_pause);
            View next = mControls.findViewById(R.id.next);

            mCover.setOnClickListener(this);
            previous.setOnClickListener(this);
            mPlayPauseButton.setOnClickListener(this);
            next.setOnClickListener(this);

            mShuffleButton = (ImageButton) findViewById(R.id.shuffle);
            mShuffleButton.setOnClickListener(this);
            registerForContextMenu(mShuffleButton);
            mEndButton = (ImageButton) findViewById(R.id.end_action);
            mEndButton.setOnClickListener(this);
            registerForContextMenu(mEndButton);

            mEmptyQueue = findViewById(R.id.empty_queue);
            mEmptyQueue.setOnClickListener(this);
        }
    }

    loadTabOrder();
    int page = settings.getInt(PrefKeys.LIBRARY_PAGE, 0);
    if (page != 0) {
        pager.setCurrentItem(page);
    }

    loadAlbumIntent(getIntent());
}

From source file:com.saarang.samples.apps.iosched.ui.SessionLivestreamActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    requestWindowFeature(Window.FEATURE_ACTION_BAR_OVERLAY);
    super.onCreate(savedInstanceState);
    setContentView(com.saarang.samples.apps.iosched.R.layout.activity_session_livestream);
    mIsTablet = UIUtils.isTablet(this);

    // Set up YouTube player
    mYouTubeFragment = (YouTubePlayerFragment) getFragmentManager()
            .findFragmentById(com.saarang.samples.apps.iosched.R.id.livestream_player);
    mYouTubeFragment.initialize(Config.YOUTUBE_API_KEY, this);

    // Views that are common over all layouts
    mMainLayout = (LinearLayout) findViewById(com.saarang.samples.apps.iosched.R.id.livestream_mainlayout);
    adjustMainLayoutForActionBar();//from   w  ww .j ava 2 s. co m
    mPlayerContainer = (LinearLayout) findViewById(
            com.saarang.samples.apps.iosched.R.id.livestream_player_container);
    mFullscreenCaptions = (FrameLayout) findViewById(com.saarang.samples.apps.iosched.R.id.fullscreen_captions);
    final LayoutParams params = (LayoutParams) mFullscreenCaptions.getLayoutParams();
    params.setMargins(0, getActionBarHeightPx(), 0, getActionBarHeightPx());
    mFullscreenCaptions.setLayoutParams(params);
    mTabsContentLayout = (LinearLayout) findViewById(
            com.saarang.samples.apps.iosched.R.id.livestream_tabs_layout);

    // Set up ViewPager and adapter
    ViewPager viewPager = (ViewPager) findViewById(com.saarang.samples.apps.iosched.R.id.livestream_pager);
    viewPager.setOffscreenPageLimit(2);
    viewPager.setPageMargin(
            getResources().getDimensionPixelSize(com.saarang.samples.apps.iosched.R.dimen.page_margin_width));
    mTabsAdapter = new TabsAdapter(getFragmentManager());
    viewPager.setAdapter(mTabsAdapter);
    viewPager.setOnPageChangeListener(mTabsAdapter);

    if (mIsTablet) {
        // Tablet UI specific views
        mVideoLayout = (LinearLayout) findViewById(
                com.saarang.samples.apps.iosched.R.id.livestream_video_layout);
    }

    mTabsAdapter.addTab(getString(com.saarang.samples.apps.iosched.R.string.session_livestream_info),
            new SessionSummaryFragment(), TABNUM_SESSION_SUMMARY);

    mTabsAdapter.addTab(getString(com.saarang.samples.apps.iosched.R.string.session_livestream_captions),
            new SessionCaptionsFragment(), TABNUM_LIVE_CAPTIONS);

    // Set up sliding tabs w/ViewPager
    SlidingTabLayout slidingTabLayout = (SlidingTabLayout) findViewById(
            com.saarang.samples.apps.iosched.R.id.livestream_sliding_tabs);
    slidingTabLayout.setCustomTabView(com.saarang.samples.apps.iosched.R.layout.tab_indicator,
            android.R.id.text1);

    Resources res = getResources();
    slidingTabLayout.setSelectedIndicatorColors(
            res.getColor(com.saarang.samples.apps.iosched.R.color.tab_selected_strip));
    slidingTabLayout.setDistributeEvenly(true);
    slidingTabLayout.setViewPager(viewPager);

    // Reload all other data in this activity
    reloadFromIntent(getIntent());

    // Update layout based on current configuration
    updateLayout(getResources().getConfiguration());

    // Set up action bar
    if (!mLoadFromExtras) {
        // Start sessions query to populate action bar navigation spinner
        getLoaderManager().initLoader(SessionsQuery._TOKEN, null, this);
        mLivestreamAdapter = new LivestreamAdapter(getActionBar().getThemedContext());
    }
}