C# ViewPager.SetCurrentItem方法代码示例

        protected override void OnCreate(Bundle savedInstanceState) {
            base.OnCreate(savedInstanceState);
            SetContentView(R.Layouts.fragment_pager);

            mAdapter = new MyAdapter(GetSupportFragmentManager());

            mPager = (ViewPager)FindViewById(R.Ids.pager);
            mPager.SetAdapter(mAdapter);

            // Watch for button clicks.
            Button button = (Button)FindViewById(R.Ids.goto_first);
            button.Click += (o,a) => mPager.SetCurrentItem(0);
            
            button = (Button)FindViewById(R.Ids.goto_last);
            button.Click += (o,a) =>  mPager.SetCurrentItem(NUM_ITEMS-1);
        }

        protected override void OnCreate(Bundle savedInstanceState)
        {
            base.OnCreate(savedInstanceState);

            var vp = new ViewPager(this)
                {
                    Id = "VP".GetHashCode()
                };
            SetContentView(vp);

            vp.PageSelected += (sender, args) =>
                {
                    switch (args.P0)
                    {
                        case 0:
                            SlidingMenu.TouchModeAbove = TouchMode.Fullscreen;
                            break;
                        default:
                            SlidingMenu.TouchModeAbove = TouchMode.Margin;
                            break;
                    }
                };

            vp.Adapter = new ColorPagerAdapter(SupportFragmentManager);
            vp.SetCurrentItem(0, true);
            SlidingMenu.TouchModeAbove = TouchMode.Fullscreen;
        }

        protected override void OnCreate(Bundle bundle)
        {
            //SetTheme(Resource.Style.Theme_Sherlock_Light);
            SetTheme(Resource.Style.Theme_Example);
            base.OnCreate(bundle);
            RequestWindowFeature(WindowFeatures.IndeterminateProgress);
            SetSupportProgressBarIndeterminateVisibility(false);
            Sherlock.ActionBar.SetDisplayHomeAsUpEnabled(true);

            SetContentView(Resource.Layout.Main);
            // Show tabs
            ActionBar.NavigationMode = ActionBarNavigationMode.Tabs;
            
            // attach adapter to the viewpager
            _pageAdapter = new ArtistPagerAdapter(SupportFragmentManager);
            _viewPager = FindViewById<ViewPager>(Resource.Id.myViewPager);
            _viewPager.Adapter = _pageAdapter;
            _viewPager.SetOnPageChangeListener(this);
            // startindex
            _viewPager.SetCurrentItem(0, true);

            var jsonArtist = Intent.GetStringExtra("Artist");
            _artist = JsonConvert.DeserializeObject<Artist>(jsonArtist);
            var jsonTopTracks = Intent.GetStringExtra("TopTracks");
            _topTracks = JsonConvert.DeserializeObject<TopTracks>(jsonTopTracks);
            var jsonTopAlbums = Intent.GetStringExtra("TopAlbums");
            _topAlbums = JsonConvert.DeserializeObject<TopAlbums>(jsonTopAlbums);

            _bitmapExtension = new BitmapExtension();
            try
            {
                _imageBitmap = _bitmapExtension.GetImageBitmapFromUrl(_artist.GetImageUrlOfSize("large"));
            }
            catch (Exception ex)
            {
                Toast.MakeText(this, "Error: " + ex.Message, ToastLength.Short).Show();
            }

            //TABS
            var tab1 = Sherlock.ActionBar.NewTab();
            tab1.SetText("Artist");
            tab1.SetTabListener(this);

            var tab2 = Sherlock.ActionBar.NewTab();
            tab2.SetText("Similar Artists");
            tab2.SetTabListener(this);

            var tab3 = Sherlock.ActionBar.NewTab();
            tab3.SetText("Top 15 Tracks");
            tab3.SetTabListener(this);

            var tab4 = Sherlock.ActionBar.NewTab();
            tab4.SetText("Top 5 Albums");
            tab4.SetTabListener(this);

            Sherlock.ActionBar.AddTab(tab1);
            Sherlock.ActionBar.AddTab(tab2);
            Sherlock.ActionBar.AddTab(tab3);
            Sherlock.ActionBar.AddTab(tab4);
        }

        protected override void OnCreate(Android.OS.Bundle savedInstanceState)
        {
            //RequestWindowFeature(Android.Views.WindowFeatures.ActionBar);
            base.OnCreate(savedInstanceState);
            CrimePagerActivity.context = this;
            mViewPager = new ViewPager(this);
            mViewPager.Id = (Resource.Id.viewPager);
            SetContentView(mViewPager);

            mCrimes = CrimeLab.GetInstance(CrimePagerActivity.context).Crimes;

            Title = mCrimes[0].Title;
            CrimePagerAdapter adapter = new CrimePagerAdapter(SupportFragmentManager);
            mViewPager.Adapter = adapter;
            mViewPager.PageSelected += (object sender, ViewPager.PageSelectedEventArgs e) => {
                var crime = mCrimes[e.Position];
                if (crime.Title != null)
                    Title = crime.Title;
            };

            //			mViewPager.SetOnPageChangeListener(this);

            string crimeId = Intent.GetStringExtra(CrimeFragment.EXTRA_CRIME_ID);
            for (int i = 0; i < mCrimes.Count; i++) {
                if (mCrimes[i].Id == crimeId) {
                    mViewPager.SetCurrentItem(i, false);
                    break;
                }
            }
        }

        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);

            // Set our view from the "main" layout resource
            SetContentView(Resource.Layout.MainMenuForGuest);

            _context = this;

            _pager = FindViewById<ViewPager>(Resource.Id.pager);
            _adapter = new ViewPagerAdapter(this, FragmentManager);

            _pager.SetPageTransformer(true, new ParallaxPageTransformer());
            _pager.Adapter = _adapter;
            _adapter.ViewPager = _pager;

            ViewPagerChangeListener pageChangeListener = new ViewPagerChangeListener(_pager, delegate(int position, int positionOffsetPixels)
                {
                    // Write something
                });

            _pager.AddOnPageChangeListener(pageChangeListener);

            _adapter.Campaigns = ItemFactory.Create();
            _pager.SetCurrentItem(1, false);
        }

		public MovieViewHolder (View itemView, MoviesRecyeclerAdapter parentAdapter) : base (itemView)
		{
			_context = itemView.Context;
			this.parentAdapter = parentAdapter;
			viewPager = itemView.FindViewById<ViewPager> (Resource.Id.viewPager).JavaCast<ViewPager> ();
			adapter = new ValuePagerAdapter (itemView.Context);
			viewPager.Adapter = adapter;
			viewPager.AddOnPageChangeListener (this);
			viewPager.SetCurrentItem (1, false);
		}

 private void AssignButtonFunction(RecipeStepTimerHandler t, Button button, ViewPager vp)
 {
     //ViewGroup timerFrame = t.getTimerFrame ();
     button.Click += delegate {
         if (t.IsActive ()) {
             DeactivateTimer(t, button);
         } else {
             ActivateTimer(t, button);
             //ViewPager vp = ((StepsActivity)Activity).GetViewPager();
             int pos = vp.CurrentItem + 1;
             vp.SetCurrentItem (pos, true);
             /*t.StartTimer ();
             button.SetText (Resource.String.pause);
             timerFrame.Visibility = ViewStates.Visible;*/
         }
     };
 }

		protected override void OnCreate (Bundle bundle)
		{
			base.OnCreate (bundle);

			SetContentView (Resource.Layout.Main);


			pager = FindViewById<ViewPager>(Resource.Id.myviewpager);
			adapter = new MyPagerAdapter(this, this.SupportFragmentManager);
			pager.Adapter = adapter;
			pager.SetOnPageChangeListener (adapter);

			pager.SetCurrentItem (FIRST_PAGE,true);

			pager.OffscreenPageLimit = 3;

			pager.PageMargin = Convert.ToInt32 (GetString(Resource.String.pagermargin));
		}

		protected override void OnElementChanged (ElementChangedEventArgs<TabbedPage> e)
		{
			base.OnElementChanged (e);


			 tabbedPage = e.NewElement as PrettyTabbedPage;

			 viewPager = (ViewPager)GetChildAt (0);
		
			tabs = this.FindViewById<TabLayout> (Resource.Id.sliding_tabs);

			tabs.TabSelected+=(s,a)=>{

				var page=tabbedPage.Children [a.Tab.Position];

				if(page is TabPage)
				{
					var tPage =(TabPage)page;

					SetTab(a.Tab,tPage.SelectedIcon.File);

				}

				viewPager.SetCurrentItem(a.Tab.Position,false);


			};

			tabs.TabUnselected += (s, a) => {

				var page=tabbedPage.Children [a.Tab.Position];

				if(page is TabPage)
				{
					SetTab(a.Tab,page.Icon.File);
				}

			};
		}

		private void InitViewPager() {
			alarmViewPager = (ViewPager) View.FindViewById<ViewPager>(Resource.Id.alarmViewPager);
			fragmentsList = new List<Fragment>();

			_myAlarmFrag = new MyAlarmFrag();
			_otherAlarmFrag = new OtherAlarmFrag();

			fragmentsList.Add(_myAlarmFrag);
			fragmentsList.Add(_otherAlarmFrag);

			//关闭预加载，默认一次只加载一个Fragment
			alarmViewPager.OffscreenPageLimit =1;

			alarmViewPager.Adapter = new ViewFragmentPagerAdapter(fragmentsList,ChildFragmentManager);
			alarmViewPager.AddOnPageChangeListener (this);
			alarmViewPager.SetCurrentItem (0, true);

		}

		private void InitViewPager() {
			adviceViewPager = (ViewPager) FindViewById<ViewPager>(Resource.Id.adviceViewPager);
			fragmentsList = new List<Android.Support.V4.App.Fragment>();

			_writeAdviceFrag = new WriteAdviceFragment();
			_recordAdviceFrag = new RecordAdviceFragment();

			fragmentsList.Add(_writeAdviceFrag);
			fragmentsList.Add(_recordAdviceFrag);

			//关闭预加载，默认一次只加载一个Fragment
			adviceViewPager.OffscreenPageLimit =1;

			adviceViewPager.Adapter = new ViewFragmentPagerAdapter(fragmentsList,SupportFragmentManager);
			adviceViewPager.AddOnPageChangeListener (this);
			adviceViewPager.SetCurrentItem (0, true);

		}

        //Called when the page is created
        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate (bundle);

            int mealId = Intent.GetIntExtra ("mealId", 0);
            Console.WriteLine ("Recipe Id: " + mealId);

            SetContentView (Resource.Layout.Walkthrough);
            vp = FindViewById<ViewPager> (Resource.Id.walkthrough_pager);

            //Store pointers to timer frames to be referenced by the fragments
            timerFrames = new ViewGroup[5];
            timerFrames [0] = (ViewGroup) FindViewById (Resource.Id.walkthrough_frame_1);
            timerFrames [1] = (ViewGroup) FindViewById (Resource.Id.walkthrough_frame_2);
            timerFrames [2] = (ViewGroup) FindViewById (Resource.Id.walkthrough_frame_3);
            timerFrames [3] = (ViewGroup) FindViewById (Resource.Id.walkthrough_frame_4);
            timerFrames [4] = (ViewGroup) FindViewById (Resource.Id.walkthrough_frame_5);

            timerPoolHandler = new TimerPoolHandler (timerFrames);

            //TODO fix
            steps = WebUtils.getRecipeSteps (mealId);
            fragmentCount = steps.Length + 1;

            vp.Adapter = new StepFragmentPagerAdapter (SupportFragmentManager, steps, timerPoolHandler);

            //Set up the progress dots to appear at the bottom of the screen
            ViewGroup pd = (ViewGroup) FindViewById (Resource.Id.walkthrough_progress_dots);
            NavDot[] progressDots = new NavDot[fragmentCount];
            Drawable open = Resources.GetDrawable (Resource.Drawable.circle_open);

            for (int i = 0; i < progressDots.Length; i++) {
                NavDot dot = new NavDot (this);
                dot.SetMaxWidth(30);
                dot.SetImageDrawable (open);
                pd.AddView (dot);
                dot.Num = i;
                dot.Click += delegate {
                    Console.WriteLine("Going to page " + dot.Num);
                    vp.SetCurrentItem (dot.Num, true);
                };
                progressDots [i] = dot;
            }
            progressDots[0].SetImageDrawable (Resources.GetDrawable(Resource.Drawable.circle_closed));

            ViewGroup pbs = (ViewGroup)FindViewById (Resource.Id.walkthrough_progress_bars);

            vp.AddOnPageChangeListener (new StepChangeListener (progressDots, open, Resources.GetDrawable(Resource.Drawable.circle_closed), pbs));
        }

		protected override void OnCreate (Bundle bundle)
		{
			base.OnCreate (bundle);

			// Create your application here
			SetContentView(Resource.Layout.ScrollImages);

			var position = Intent.GetIntExtra(POSITION, 0);

			viewPager = FindViewById<ViewPager>(Resource.Id.pager);
			viewPager.SetClipToPadding(false);
			//viewPager.PageMargin = DimensionHelper.DpToPx(12);


			//More documentation is available on this page
			//https://channel9.msdn.com/Series/Windows-Phone-8-Development-for-Absolute-Beginners/Part-26-Retrieving-a-Photo-from-Flickrs-API
			string[] licenses = { "4", "5", "6", "7" };
			string license = String.Join(",", licenses);
			license = license.Replace(",", "%2C");

			string url = "https://api.flickr.com/services/rest/" +
				"?method=flickr.photos.search" +
				"&api_key={0}" +
				"&user_id={1}" +
				"&format=json" +
				"&page={2}" +
				"&per_page={3}" +
				"&nojsoncallback=1";

			var baseUrl = string.Format(url,
				ImageConfig.flickrApiKey,
				ImageConfig.userId,
				ImageConfig.page,
				ImageConfig.per_page);

		
			var client = new System.Net.Http.HttpClient ();
			client.GetStringAsync (baseUrl).ContinueWith ((requestString) => {

				var flickrResult = requestString.Result;
				FlickrData apiData = JsonConvert.DeserializeObject<FlickrData>(flickrResult);
				int counter = 0;
				if (apiData.stat == "ok")
				{
					foreach (Photo data in apiData.photos.photo)
					{
						// To retrieve one photo, use this format:
						//http://farm{farm-id}.staticflickr.com/{server-id}/{id}_{secret}{size}.jpg
						counter = counter+1;
						string photoUrl = "https://farm{0}.staticflickr.com/{1}/{2}_{3}_{4}.jpg";
						string largeFlickrUrl  =  string.Format(photoUrl,data.farm,data.server,data.id,data.secret,"b");
						string name = string.Format("Image{0}", counter);
						items.Add(new ScrollImages(){Images=largeFlickrUrl , Activity=this});

					}
				}

				viewPager.Adapter = new SwipeGalleryStateAdapter(SupportFragmentManager, items);
				viewPager.SetCurrentItem(position, false);

			});

		

		}

		private void InitView( ) {
			
			btnTabmyGuardian = View.FindViewById<Button>(Resource.Id.btn_tab_myGuardian);
			btnTabotherGuardian = View.FindViewById<Button>(Resource.Id.btn_tab_otherGuardian);
			btnTabmyGuardian.SetTextColor(Resources.GetColor(Resource.Color.blue));

			btnTabmyGuardian.SetOnClickListener(this);
			btnTabotherGuardian.SetOnClickListener(this);

			//设置viewpager
			guardianViewPager = (ViewPager) View.FindViewById<ViewPager>(Resource.Id.guardianViewpager);
			fragmentsList = new List<Fragment>();

			_myGuardianFrag = new MyGuardianFrag();
			_otherGuardianFrag = new OtherGuardianFrag();

			fragmentsList.Add(_myGuardianFrag);
			fragmentsList.Add(_otherGuardianFrag);

			//关闭预加载，默认一次只加载一个Fragment
			guardianViewPager.OffscreenPageLimit =1;

			guardianViewPager.Adapter = new ViewFragmentPagerAdapter(fragmentsList,ChildFragmentManager);

			guardianViewPager.AddOnPageChangeListener (this);
			guardianViewPager.SetCurrentItem (0, true);

			ll_actionBar = View.FindViewById<LinearLayout> (Resource.Id.ll_actionBar);
			//弹出popupwindow，绑定监护人和监护人申请
			btn_bindGuardian = View.FindViewById<Button> (Resource.Id.btn_BindGuardian);
			btn_bindGuardian.Click += (sender, e) => 
			{
				BackgroundAlpha(0.5f);
				if(guardianPopupWindow!=null)
					guardianPopupWindow.ShowAsDropDown(ll_actionBar,-100,1,GravityFlags.Right|GravityFlags.Top);

				else
				{
					InitPopupWindow();
				}
			};

		}

        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);

            IsFirstInitialization = true;
            _persoon = Gegevens.GetPerson();
            _groep = Gegevens.CurrentGroup();

            SetContentView(Resource.Layout.Hoofdscherm);

            _toolbar = FindViewById<Toolbar>(Resource.Id.toolbar);
            _totalDebt = _toolbar.FindViewById<TextView>(Resource.Id.TotalDebt);
            _title = _toolbar.FindViewById<TextView>(Resource.Id.Title);
            _title.Text = _persoon.Id;
            TotalDebt = _persoon.TotaalSchuld();

            SetSupportActionBar(_toolbar);
            SupportActionBar.Title = "";

            _fragments = new HoofdschermFragment[]
            {
                new SessionFragment(),
                new PayFragment(),
                new ContactFragment()
            };

            var titles = CharSequence.ArrayFromStringArray(new[]
                {
                    "Sessions",
                    "Payments",
                    "Contacts"
                });

            _viewPager = FindViewById<ViewPager>(Resource.Id.viewpager);
            _viewPager.Adapter = new TabsFragmentPagerAdapter(SupportFragmentManager, _fragments, titles);
            _viewPager.SetCurrentItem(1, true);

            _tabLayout = FindViewById<TabLayout>(Resource.Id.sliding_tabs);
            _tabLayout.SetupWithViewPager(_viewPager);

            _tabLayout.SetOnTabSelectedListener(this);
        }