Java Code Examples for androidx.viewpager.widget.ViewPager#setOffscreenPageLimit()

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_sample_fragments);

    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);

    mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());

    mViewPager = (ViewPager) findViewById(R.id.container);
    mViewPager.setOffscreenPageLimit(2);
    mViewPager.setAdapter(mSectionsPagerAdapter);

    TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);

    mViewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
    tabLayout.addOnTabSelectedListener(new TabLayout.ViewPagerOnTabSelectedListener(mViewPager));

}
 

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mContext = this;
        setContentView(R.layout.activity_vpanim2);
        initDatas();
//        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
//        setSupportActionBar(toolbar);
        // 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.container);
        mViewPager.setPageMargin(20);
        mViewPager.setAdapter(mSectionsPagerAdapter);
        mViewPager.setOffscreenPageLimit(3);
        mViewPager.setPageTransformer(true, new MyTranformer());
    }
 

@Override
public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    final View view = super.onCreateView(inflater, container, savedInstanceState);
    viewPager = (ViewPager) (view != null ? view.findViewById(R.id.fragment_device_detail_child_view_pager) : null);
    if (viewPager != null) {
        viewPager.setOffscreenPageLimit(1);
    }
    populate();

    viewPager.removeOnPageChangeListener(onPageChangeListener);
    viewPager.addOnPageChangeListener(onPageChangeListener);
    return view;
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.activity_awesomedesign);

    setTitle("SimpleChartDemo");

    ViewPager pager = findViewById(R.id.pager);
    pager.setOffscreenPageLimit(3);

    PageAdapter a = new PageAdapter(getSupportFragmentManager());
    pager.setAdapter(a);


    AlertDialog.Builder b = new AlertDialog.Builder(this);
    b.setTitle("This is a ViewPager.");
    b.setMessage("Swipe left and right for more awesome design examples!");
    b.setPositiveButton("OK", new OnClickListener() {

        @Override
        public void onClick(DialogInterface dialog, int which) {
            dialog.dismiss();
        }
    });
    b.show();
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_demo_fragment);
    setTitle(getClass().getSimpleName());
    setActionBarBack();

    for(int i = 0; i < 3; i++){
        fragmentList.add(DemoFragment.newInstance(i));
    }
    ViewPager vp = (ViewPager) findViewById(R.id.vp);
    vp.setOffscreenPageLimit(1);
    vp.setAdapter(new DemoAdapter(getSupportFragmentManager()));
}
 

@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_downloads);

    initToolBar();

    SupportedDownloads.KernelContent content = new SupportedDownloads.KernelContent(getIntent().getStringExtra(JSON_INTENT));
    getSupportActionBar().setTitle(Utils.htmlFrom(content.getName()).toString());

    final ViewPager viewPager = findViewById(R.id.viewpager);

    LinkedHashMap<String, Fragment> items = new LinkedHashMap<>();

    List<SupportedDownloads.KernelContent.Feature> features = content.getFeatures();
    List<SupportedDownloads.KernelContent.Download> downloads = content.getDownloads();

    if (content.getShortDescription() != null && content.getLongDescription() != null) {
        items.put(getString(R.string.about), AboutFragment.newInstance(content));
    }

    if (features.size() > 0) {
        items.put(getString(R.string.features), FeaturesFragment.newInstance(features));
    }

    if (downloads.size() > 0) {
        items.put(getString(R.string.downloads), DownloadKernelFragment.newInstance(downloads));
    }

    viewPager.setOffscreenPageLimit(items.size());
    PagerAdapter pagerAdapter = new PagerAdapter(getSupportFragmentManager(), items);
    viewPager.setAdapter(pagerAdapter);

    TabLayout tabLayout = findViewById(R.id.tablayout);
    tabLayout.setupWithViewPager(viewPager);

    viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
}
 

public void bind(ViewPager viewPager, TabLayout tabLayout,
                 FloatingActionButton navigationFab, FloatingActionButton genericFab) {
    viewPager.setPageMargin(viewPager.getResources().getDimensionPixelOffset(R.dimen.divider));
    viewPager.setPageMarginDrawable(R.color.blackT12);
    viewPager.setOffscreenPageLimit(2);
    viewPager.setAdapter(this);
    tabLayout.setupWithViewPager(viewPager);
    mTabListener = new TabLayout.ViewPagerOnTabSelectedListener(viewPager) {
        @Override
        public void onTabSelected(TabLayout.Tab tab) {
            super.onTabSelected(tab);
            toggleFabs(viewPager.getCurrentItem() == 0, navigationFab, genericFab);
            Fragment fragment = getItem(viewPager.getCurrentItem());
            if (fragment != null) {
                ((LazyLoadFragment) fragment).loadNow();
            }
        }

        @Override
        public void onTabReselected(TabLayout.Tab tab) {
            Fragment fragment = getItem(viewPager.getCurrentItem());
            if (fragment != null) {
                ((Scrollable) fragment).scrollToTop();
            }
        }
    };
    tabLayout.addOnTabSelectedListener(mTabListener);
    viewPager.setCurrentItem(mDefaultItem);
    toggleFabs(mDefaultItem == 0, navigationFab, genericFab);

}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    address = getIntent().getStringExtra("ADDRESS");
    type = getIntent().getByteExtra("TYPE", SCANNED_WALLET);

    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayShowTitleEnabled(false);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    title = (TextView) findViewById(R.id.toolbar_title);
    String walletname = AddressNameConverter.getInstance(this).get(address);
    title.setText(type == OWN_WALLET ? (walletname == null ? "Unnamed Wallet" : walletname) : "Address");

    coord = (CoordinatorLayout) findViewById(R.id.main_content);
    appbar = (AppBarLayout) findViewById(R.id.appbar);

    fragments = new Fragment[3];
    fragments[0] = new FragmentDetailShare();
    fragments[1] = new FragmentDetailOverview();
    fragments[2] = new FragmentTransactions();
    Bundle bundle = new Bundle();
    bundle.putString("ADDRESS", address);
    bundle.putDouble("BALANCE", getIntent().getDoubleExtra("BALANCE", 0));
    bundle.putByte("TYPE", type);
    fragments[0].setArguments(bundle);
    fragments[1].setArguments(bundle);
    fragments[2].setArguments(bundle);

    mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());

    mViewPager = (ViewPager) findViewById(R.id.container);
    mViewPager.setAdapter(mSectionsPagerAdapter);

    TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
    tabLayout.setupWithViewPager(mViewPager);
    tabLayout.setupWithViewPager(mViewPager);

    tabLayout.getTabAt(0).setIcon(R.drawable.ic_action_share);
    tabLayout.getTabAt(1).setIcon(R.drawable.ic_wallet);
    tabLayout.getTabAt(2).setIcon(R.drawable.ic_transactions);
    mViewPager.setCurrentItem(1);

    mViewPager.setOffscreenPageLimit(3);
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    // Create the adapter that will return a fragment for each of the three
    // primary sections of the activity.
    /*
      The {@link android.support.v4.view.PagerAdapter} that will provide
    fragments for each of the sections. We use a
    {@link FragmentPagerAdapter} derivative, which will keep every
    loaded fragment in memory. If this becomes too memory intensive, it
    may be best to switch to a
    {@link android.support.v4.app.FragmentStatePagerAdapter}.
     */
    SectionsPagerAdapter mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager(), getResources());

    // Set up the ViewPager with the sections adapter.
    mViewPager = (ViewPager) findViewById(R.id.container);
    if (mViewPager == null) return;

    mViewPager.setOffscreenPageLimit(4);
    mViewPager.setAdapter(mSectionsPagerAdapter);

    TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
    tabLayout.setupWithViewPager(mViewPager);

    initBluetooth();
    initUDP();
    initBroadcastReceiverForUsbPermissions();
    initUSB();
    retrieveAndStoreAppVersion(getApplicationContext());
    AppState.getInstance().textSpeaker = new TextSpeaker(getApplicationContext(),
            AppState.getInstance().shouldSpeakEnglishOnly);
    AppState.getInstance().preferences = getPreferences(MODE_PRIVATE);
    AppPreferences.applyAll();

    AppState.getInstance().addListener(new IDataListener() {
        @Override
        public void onDataChange(DataAction dataItemName) {
            switch (dataItemName) {
                case WrongApiVersion:
                    MainActivity.this.showWrongApiDialog();
            }
        }
    });
    //Ensure permissions permissions before any disk IO
    ensurePermissions();
    //this will cleanup csv reports after 2 weeks (14 days)
    cleanUpCSVReports();
}
 

@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);
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    address = getIntent().getStringExtra("ADDRESS");
    type = getIntent().getByteExtra("TYPE", SCANNED_WALLET);

    Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setDisplayShowTitleEnabled(false);
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
    title = (TextView) findViewById(R.id.toolbar_title);
    String walletname = AddressNameConverter.getInstance(this).get(address);
    title.setText(type == OWN_WALLET ? (walletname == null ? "Unnamed Wallet" : walletname) : "Address");

    coord = (CoordinatorLayout) findViewById(R.id.main_content);
    appbar = (AppBarLayout) findViewById(R.id.appbar);

    fragments = new Fragment[3];
    fragments[0] = new FragmentDetailShare();
    fragments[1] = new FragmentDetailOverview();
    fragments[2] = new FragmentTransactions();
    Bundle bundle = new Bundle();
    bundle.putString("ADDRESS", address);
    bundle.putDouble("BALANCE", getIntent().getDoubleExtra("BALANCE", 0));
    bundle.putByte("TYPE", type);
    fragments[0].setArguments(bundle);
    fragments[1].setArguments(bundle);
    fragments[2].setArguments(bundle);

    mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());

    mViewPager = (ViewPager) findViewById(R.id.container);
    mViewPager.setAdapter(mSectionsPagerAdapter);

    TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
    tabLayout.setupWithViewPager(mViewPager);
    tabLayout.setupWithViewPager(mViewPager);

    tabLayout.getTabAt(0).setIcon(R.drawable.ic_action_share);
    tabLayout.getTabAt(1).setIcon(R.drawable.ic_wallet);
    tabLayout.getTabAt(2).setIcon(R.drawable.ic_transactions);
    mViewPager.setCurrentItem(1);

    mViewPager.setOffscreenPageLimit(3);
}
 

@Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        context = getApplicationContext();
        fragmentManager = getSupportFragmentManager();

        YouTubeSqlDb.getInstance().init(this);

        toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        if (getSupportActionBar() != null) {
            getSupportActionBar().setDisplayHomeAsUpEnabled(false);
        }

        playbackControlsFragment = (PlaybackControlsFragment) fragmentManager
                .findFragmentById(R.id.fragment_playback_controls);

        viewPager = (ViewPager) findViewById(R.id.viewpager);
        viewPager.setOffscreenPageLimit(3);
        setupViewPager(viewPager);

        tabLayout = (TabLayout) findViewById(R.id.tabs);
        tabLayout.setupWithViewPager(viewPager);

        setupTabIcons();
        loadColor();

        checkAndRequestPermissions();
        networkConf = new NetworkHelper(this);


        // Connect a media browser just to get the media session token. There are other ways
        // this can be done, for example by sharing the session token directly.
//        mMediaBrowser = new MediaBrowserCompat(
//                this,
//                new ComponentName(this, BackgroundExoAudioService.class),
//                mConnectionCallback, null
//        );
    }