android.support.v4.view.ViewPager#setOnPageChangeListener ( )源码实例Demo

public void setViewPager(ViewPager view) {
    if (view == null) {
        removeAllViews();
        this.mViewPager = null;
    } else if (this.mViewPager != view) {
        if (this.mViewPager != null) {
            this.mViewPager.setOnPageChangeListener(null);
        }
        if (view.getAdapter() == null) {
            throw new IllegalStateException("ViewPager does not have adapter instance.");
        }
        this.mViewPager = view;
        view.setOnPageChangeListener(this);
        notifyDataSetChanged();
    }
}
 

@Override
public void setViewPager(ViewPager view) {
    if (mViewPager == view) {
        return;
    }
    if (mViewPager != null) {
        mViewPager.setOnPageChangeListener(null);
    }
    PagerAdapter adapter = view.getAdapter();
    if (adapter == null) {
        throw new IllegalStateException("ViewPager does not have adapter instance.");
    }
    mViewPager = view;
    view.setOnPageChangeListener(this);
    notifyDataSetChanged();
}
 

@Override
public void setViewPager(ViewPager view) {
    if (mViewPager == view) {
        return;
    }
    if (mViewPager != null) {
        mViewPager.setOnPageChangeListener(null);
    }
    final PagerAdapter adapter = view.getAdapter();
    if (adapter == null) {
        throw new IllegalStateException("ViewPager does not have adapter instance.");
    }
    mViewPager = view;
    view.setOnPageChangeListener(this);
    notifyDataSetChanged();
}
 

@Override
public void setViewPager(ViewPager view) {
    if (mViewPager == view) {
        return;
    }
    if (mViewPager != null) {
        mViewPager.setOnPageChangeListener(null);
    }
    final PagerAdapter adapter = view.getAdapter();
    if (adapter == null) {
        throw new IllegalStateException("ViewPager does not have adapter instance.");
    }
    mViewPager = view;
    view.setOnPageChangeListener(this);
    notifyDataSetChanged();
}
 

public void setViewPager(ViewPager pager) {
	this.pager = pager;

	if (pager.getAdapter() == null) {
		throw new IllegalStateException("ViewPager does not have adapter instance.");
	}

	pager.setOnPageChangeListener(pageListener);

	notifyDataSetChanged();
}
 

@Override
protected void onCreate(final Bundle savedInstanceState) {
	super.onCreate(savedInstanceState);
	overridePendingTransition(R.anim.slide_in_right, 0);
	setContentView(R.layout.network_monitor_content);

	// final ActionBar actionBar = getSupportActionBar();
	// actionBar.setDisplayHomeAsUpEnabled(true);

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

	final FragmentManager fm = getSupportFragmentManager();

	if (pager != null) {
		final ViewPagerTabs pagerTabs = (ViewPagerTabs) findViewById(R.id.network_monitor_pager_tabs);
		pagerTabs.addTabLabels(R.string.network_monitor_peer_list_title,
				R.string.network_monitor_block_list_title);

		final PagerAdapter pagerAdapter = new PagerAdapter(fm);

		pager.setAdapter(pagerAdapter);
		pager.setOnPageChangeListener(pagerTabs);
		pager.setPageMargin(2);
		pager.setPageMarginDrawable(R.color.bg);

		peerListFragment = new PeerListFragment();
		blockListFragment = new BlockListFragment();
	} else {
		peerListFragment = (PeerListFragment) fm
				.findFragmentById(R.id.peer_list_fragment);
		blockListFragment = (BlockListFragment) fm
				.findFragmentById(R.id.block_list_fragment);
	}
	// flTitleBar = (FrameLayout) findViewById(R.id.fl_title_bar);
	ibtnBack = (ImageButton) findViewById(R.id.ibtn_back);
	ibtnBack.setOnClickListener(new IBackClickListener());
       findViewById(R.id.ibtn_option).setOnClickListener(optionClick);
   }
 

/**
 * Sets the associated view pager. Note that the assumption here is that the pager content
 * (number of tabs and tab titles) does not change after this call has been made.
 */
public void setViewPager(ViewPager viewPager) {
    mTabStrip.removeAllViews();

    mViewPager = viewPager;
    if (viewPager != null) {
        viewPager.setOnPageChangeListener(new InternalViewPagerListener());
        populateTabStrip();
    }
}
 

public void setViewPager(ViewPager pager) {
    this.pager = pager;

    if (pager.getAdapter() == null) {
        throw new IllegalStateException("ViewPager does not have adapter instance.");
    }

    pager.setOnPageChangeListener(pageListener);

    notifyDataSetChanged();
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_icons);
    res = this.getResources();
    // init toolbar (old action bar)

    Toolbar toolbar = (Toolbar) this.findViewById(R.id.toolbar);
    toolbar.setTitleTextColor(Color.WHITE);
    this.setSupportActionBar(toolbar);

    tabHost = (MaterialTabHost) this.findViewById(R.id.tabHost);
    pager = (ViewPager) this.findViewById(R.id.pager);
    // init view pager
    pagerAdapter = new ViewPagerAdapter(getSupportFragmentManager());
    pager.setAdapter(pagerAdapter);
    pager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
        @Override
        public void onPageSelected(int position) {
            // when user do a swipe the selected tab change
            tabHost.setSelectedNavigationItem(position);
        }
    });
    // insert all tabs from pagerAdapter data
    for (int i = 0; i < pagerAdapter.getCount(); i++) {
        tabHost.addTab(
                tabHost.newTab()
                        .setIcon(getIcon(i))
                        .setTabListener(this)
        );
    }
}
 

public void setViewPager(ViewPager pager) {
    this.pager = pager;

    if (pager.getAdapter() == null) {
        throw new IllegalStateException("ViewPager does not have adapter instance.");
    }

    pager.setOnPageChangeListener(pageListener);

    notifyDataSetChanged();
}
 

public void setViewPager(ViewPager pager) {
		this.pager = pager;

		if (pager.getAdapter() == null) {
			throw new IllegalStateException("ViewPager does not have adapter instance.");
		}

		pager.setOnPageChangeListener(pageListener);

//		notifyDataSetChanged();
	}
 

/**
 * Sets the associated view pager. Note that the assumption here is that the pager content
 * (number of tabs and tab titles) does not change after this call has been made.
 */
public void setViewPager(ViewPager viewPager) {
    mTabStrip.removeAllViews();

    mViewPager = viewPager;
    if (viewPager != null) {
        viewPager.setOnPageChangeListener(new InternalViewPagerListener());
        populateTabStrip();
    }
}
 

private void init(Context context) {
    LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context
            .LAYOUT_INFLATER_SERVICE);
    inflater.inflate(R.layout.keyboard_media_layout, this);
    vpContent = (ViewPager) findViewById(R.id.popup_media_pager);
    ivIndicator = (IndicatorView) findViewById(R.id.popup_media_indicator);
    vpContent.setOnPageChangeListener(this);  //compatible for android 22
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    // createFontAwesomeEngine();
    IconicFontEngine.addDefaultEngine(
            new FontAwesomeEngine(Typeface.createFromAsset(getAssets(), "fonts/fontawesome-webfont.ttf")));
    IconicFontEngine.addDefaultEngine(
            new TypiconsEngine(Typeface.createFromAsset(getAssets(), "fonts/typicons.ttf")));

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    // Set up the action bar.
    final ActionBar actionBar = getSupportActionBar();
    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);

    // Create the adapter that will return a fragment for each of the three
    // primary sections of the activity.
    mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());

    // Set up the ViewPager with the sections adapter.
    mViewPager = (ViewPager) findViewById(R.id.pager);
    mViewPager.setAdapter(mSectionsPagerAdapter);

    // When swiping between different sections, select the corresponding
    // tab. We can also use ActionBar.Tab#select() to do this if we have
    // a reference to the Tab.
    mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
        @Override
        public void onPageSelected(int position) {
            actionBar.setSelectedNavigationItem(position);
        }
    });

    // For each of the sections in the app, add a tab to the action bar.
    for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
        // Create a tab with text corresponding to the page title defined by
        // the adapter. Also specify this Activity object, which implements
        // the TabListener interface, as the callback (listener) for when
        // this tab is selected.
        actionBar.addTab(
                actionBar.newTab()
                        .setText(mSectionsPagerAdapter.getPageTitle(i))
                        .setTabListener(this));
    }
}
 

public void initUI() {
    ActionBar actionBar = getSupportActionBar();
    actionBar.setDisplayHomeAsUpEnabled(true);
    viewPager = (ViewPager) findViewById(R.id.viewpager);
    viewPager.setOnPageChangeListener(this);
}
 

private void synchronizePager(ViewPager pager, int i) {
	pager.setOnPageChangeListener(null);
	pager.setCurrentItem(i);
	pager.setOnPageChangeListener(FreeFragment.this);
}
 

/**
 * 初始化控件
 */
private View createContentView() {
	
	rootContainer = new RelativeLayout(context);
	rootContainer.setBackgroundColor(Color.parseColor("#000000"));
	rootContainer.setLayoutParams(new LayoutParams(MATCH_PARENT, MATCH_PARENT));
	
	LayoutParams contentParams = new LayoutParams(MATCH_PARENT, WRAP_CONTENT);
	contentParams.addRule(RelativeLayout.CENTER_IN_PARENT, RelativeLayout.TRUE);
	contentContainer = new ViewPager(context);
	contentContainer.setAdapter(imageAdapter);
	contentContainer.setLayoutParams(contentParams);
	contentContainer.setOnPageChangeListener(onPageChangeListener);
	
	LayoutParams params = new LayoutParams(MATCH_PARENT, WRAP_CONTENT);
	params.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
	indexContainer = new LinearLayout(context);
	indexContainer.setLayoutParams(params);
	indexContainer.setPadding(0, 0, 0, DP * 20);
	indexContainer.setGravity(Gravity.CENTER);
	indexContainer.setOrientation(LinearLayout.HORIZONTAL);
	
	LayoutParams params2 = new LayoutParams(60 * DP, 32 * DP);
	params2.addRule(RelativeLayout.ALIGN_PARENT_LEFT, RelativeLayout.TRUE);
	params2.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM, RelativeLayout.TRUE);
	params2.setMargins(10 * DP, 0, 0, 10 * DP);
	actionButton = new UIButton(context);
	actionButton.setLayoutParams(params2);
	actionButton.setText("删除");
	actionButton.setTextSize(14);
	actionButton.setVisibility(View.GONE);
	actionButton.setTextColor(Color.WHITE);
	actionButton.setBackgroundColor(Color.RED);
	actionButton.setOnClickListener(onClickListener);
	
	rootContainer.addView(contentContainer);
	rootContainer.addView(indexContainer);
	rootContainer.addView(actionButton);
	
	return rootContainer;
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    mInstance = this;

    setContentView(R.layout.activity_settings);

    prefs = new PrefsGet(getSharedPreferences(getPackageName(), Context.MODE_MULTI_PROCESS));

    mContext = this;
    mIsLollipop = Tools.isLollipop(true);
    mIsAtLeastLollipop = Tools.isLollipop(false);

    if (showChangelog(prefs)) {
        launchChangelog();
    }

    if (mIsAtLeastLollipop && needsUsPermission()) {
        launchUsPermission(mContext);
    }

    display = getWindowManager().getDefaultDisplay();
    updateDisplayWidth();

    myService = new ServiceCall(mContext);
    myService.setConnection(mConnection);

    // Set up the action bar.
    final ActionBar actionBar = getActionBar();

    actionBar.setTitle(R.string.title_activity_settings);
    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
    actionBar.setCustomView(R.layout.action_spinner);
    setUpSpinner((Spinner) actionBar.getCustomView().findViewById(R.id.config_spinner));
    actionBar.setDisplayShowCustomEnabled(true);


    mSectionsPagerAdapter = new SectionsPagerAdapter(getFragmentManager());

    // Set up the ViewPager with the sections adapter.
    mViewPager = (ViewPager) findViewById(R.id.pager);
    mViewPager.setAdapter(mSectionsPagerAdapter);
    mViewPager.setOffscreenPageLimit(4);

    mGetFragments = new GetFragments();
    mGetFragments.setFm(getFragmentManager());
    mGetFragments.setVp(mViewPager);

    ViewPager.OnPageChangeListener pageChangeListener = new ViewPager.SimpleOnPageChangeListener() {
        @Override
        public void onPageSelected(int position) {
            actionBar.setSelectedNavigationItem(position);
        }
    };

    mViewPager.setOnPageChangeListener(pageChangeListener);

    for (int i = 0; i < mSectionsPagerAdapter.getCount(); i++) {
        actionBar.addTab(
                actionBar.newTab()
                        .setText(mSectionsPagerAdapter.getPageTitle(i))
                        .setTabListener(this));
    }
    pageChangeListener.onPageSelected(GENERAL_TAB);

}
 

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

  setContentView(R.layout.activity_intro);

  FragmentManager fm = getFragmentManager();
  mTaskFragment = (IntroXMLTaskFragment) fm.findFragmentByTag("task");

  // If the Fragment is non-null, then it is currently being
  // retained across a configuration change.
  if (mTaskFragment == null) {
    mTaskFragment = new IntroXMLTaskFragment();
    fm.beginTransaction().add(mTaskFragment, "task").commit();
  }

  mCloseButton = (Button) findViewById(R.id.close_button);
  mCloseButton.setOnClickListener(new View.OnClickListener() {
    public void onClick(View v) {
      finish();
    }
  });

  mViewPager = (ViewPager) findViewById(R.id.intro_pager);

  introPagerAdapter = new IntroPagerAdapter(this, getSupportFragmentManager());
  introPagerAdapter.setPages(mTaskFragment.getPages());
  mViewPager.setAdapter(introPagerAdapter);

  final LinePageIndicator ind = (LinePageIndicator) findViewById(R.id.line_indicator);
  ind.setViewPager(mViewPager);

  mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener() {
    @Override
    public void onPageSelected(int position) {
      ind.updatePage(position);
      boolean lastPage = position == introPagerAdapter.getCount() - 1;

      mCloseButton.setText((lastPage) ? "Close" : "Read later");
    }
  });

  // show player if activity was destroyed and recreated
  if (savedInstanceState != null) {
    // must wait for the pages to load before we can restore it, so save it here
    mSavedIndex = savedInstanceState.getInt("pager_index");
  }
}
 

@Override
protected void onFinishInflate() {
    mTabHost = (TabHost)findViewById(R.id.emoji_category_tabhost);
    mTabHost.setup();
    for (final EmojiCategory.CategoryProperties properties
            : mEmojiCategory.getShownCategories()) {
        addTab(mTabHost, properties.mCategoryId);
    }
    mTabHost.setOnTabChangedListener(this);
    final TabWidget tabWidget = mTabHost.getTabWidget();
    tabWidget.setStripEnabled(mCategoryIndicatorEnabled);
    if (mCategoryIndicatorEnabled) {
        // On TabWidget's strip, what looks like an indicator is actually a background.
        // And what looks like a background are actually left and right drawables.
        tabWidget.setBackgroundResource(mCategoryIndicatorDrawableResId);
        tabWidget.setLeftStripDrawable(mCategoryIndicatorBackgroundResId);
        tabWidget.setRightStripDrawable(mCategoryIndicatorBackgroundResId);
    }

    mEmojiPalettesAdapter = new EmojiPalettesAdapter(mEmojiCategory, this);

    mEmojiPager = (ViewPager)findViewById(R.id.emoji_keyboard_pager);
    mEmojiPager.setAdapter(mEmojiPalettesAdapter);
    mEmojiPager.setOnPageChangeListener(this);
    mEmojiPager.setOffscreenPageLimit(0);
    mEmojiPager.setPersistentDrawingCache(PERSISTENT_NO_CACHE);
    mEmojiLayoutParams.setPagerProperties(mEmojiPager);

    mEmojiCategoryPageIndicatorView =
            (EmojiCategoryPageIndicatorView)findViewById(R.id.emoji_category_page_id_view);
    mEmojiCategoryPageIndicatorView.setColors(
            mCategoryPageIndicatorColor, mCategoryPageIndicatorBackground);
    mEmojiLayoutParams.setCategoryPageIdViewProperties(mEmojiCategoryPageIndicatorView);

    setCurrentCategoryId(mEmojiCategory.getCurrentCategoryId(), true /* force */);

    final LinearLayout actionBar = (LinearLayout)findViewById(R.id.emoji_action_bar);
    mEmojiLayoutParams.setActionBarProperties(actionBar);

    // deleteKey depends only on OnTouchListener.
    mDeleteKey = (ImageButton)findViewById(R.id.emoji_keyboard_delete);
    mDeleteKey.setBackgroundResource(mFunctionalKeyBackgroundId);
    mDeleteKey.setTag(Constants.CODE_DELETE);
    mDeleteKey.setOnTouchListener(mDeleteKeyOnTouchListener);

    // {@link #mAlphabetKeyLeft}, {@link #mAlphabetKeyRight, and spaceKey depend on
    // {@link View.OnClickListener} as well as {@link View.OnTouchListener}.
    // {@link View.OnTouchListener} is used as the trigger of key-press, while
    // {@link View.OnClickListener} is used as the trigger of key-release which does not occur
    // if the event is canceled by moving off the finger from the view.
    // The text on alphabet keys are set at
    // {@link #startEmojiPalettes(String,int,float,Typeface)}.
    mAlphabetKeyLeft = (TextView)findViewById(R.id.emoji_keyboard_alphabet_left);
    mAlphabetKeyLeft.setBackgroundResource(mFunctionalKeyBackgroundId);
    mAlphabetKeyLeft.setTag(Constants.CODE_ALPHA_FROM_EMOJI);
    mAlphabetKeyLeft.setOnTouchListener(this);
    mAlphabetKeyLeft.setOnClickListener(this);
    mAlphabetKeyRight = (TextView)findViewById(R.id.emoji_keyboard_alphabet_right);
    mAlphabetKeyRight.setBackgroundResource(mFunctionalKeyBackgroundId);
    mAlphabetKeyRight.setTag(Constants.CODE_ALPHA_FROM_EMOJI);
    mAlphabetKeyRight.setOnTouchListener(this);
    mAlphabetKeyRight.setOnClickListener(this);
    mSpacebar = findViewById(R.id.emoji_keyboard_space);
    mSpacebar.setBackgroundResource(mSpacebarBackgroundId);
    mSpacebar.setTag(Constants.CODE_SPACE);
    mSpacebar.setOnTouchListener(this);
    mSpacebar.setOnClickListener(this);
    mEmojiLayoutParams.setKeyProperties(mSpacebar);
    mSpacebarIcon = findViewById(R.id.emoji_keyboard_space_icon);
}