I-ViewPager yiwijethi evumela umsebenzisi ukuba aswayiphe ekhohlo okanye ekunene ukuze abone isikrini esitsha ngokupheleleyo. Ngandlela ithile, yindlela entle yokubonisa umsebenzisi iithebhu ezininzi. Ikwanesakhono sokongeza kunye nokususa amaphepha (okanye iithebhu) nangaliphi na ixesha.
Yintoni i-ViewPager?
Umphathi wobeko ovumela umsebenzisi ukuba ajikelezise ekhohlo nasekunene kumaphepha edatha. Unikezela ngokuphunyezwa kwePagerAdapter ukuvelisa amaphepha aboniswa ngumbono. I-ViewPager isetyenziswa rhoqo ngokudibeneyo ne-android.
Isebenza njani iViewPager?
Umbono kukuba i-ViewPager isebenza nayo i-PageAdapter ukubonelela ngokuBonisa okumele iphepha ngalinye. Uluvo olusisiseko kukuba i-ViewPager igcina umkhondo weliphi iphepha ekufuneka libonakale kwiscreen kwaye emva koko icela iPagerAdapter ifumane i-View hierarchy efuna ukuboniswa.
Yintoni umahluko kwi-ViewPager kunye ne-ViewPager2?
Jonga iPager2 yi uguqulelo oluphuculweyo lwethala leencwadi leViewPager enika usebenziso olwandisiweyo kunye needilesi zobunzima obuqhelekileyo ngokusebenzisa iViewPager . Ukuba i-app yakho sele isebenzisa i-ViewPager , funda eli phepha ukufunda ngakumbi malunga nokufudukela kwi-ViewPager2.
Ndiyimisa njani i-ViewPager swayipha?
Ukwenza / ukuvala ukuswayipha, vele ugqithise iindlela ezimbini: onTouchEvent kunye ne-onInterceptTouchEvent . Zombini ziya kubuya "zingeyonyani" ukuba i-paging ivaliwe. Kufuneka nje ubize i-setPagingEnabled indlela ngobuxoki kwaye abasebenzisi abayi kukwazi ukuswayipha ukuya kwi-paginate.
Ngaba i-ViewPager iyekisiwe?
Ngokobuchwephesha, I-ViewPager ayirhoxiswa, kodwa ukuphunyezwa kwePagerAdapter ezimbini eziphathekayo - iFragmentPagerAdapter kunye neFragmentStatePagerAdapter - zitshitshisiwe. Ngokufanelekileyo, tshintshela kwenye into, efana ne-ViewPager2 okanye i-pager composable kwi-Accompanist. Le klasi ivaliwe.
Ndiyisebenzisa njani iTabLayout kwi-Android?
Android TabLayout
- I-TabLayout isetyenziselwa ukuphumeza iithebhu ezithe tye. I-TabLayout ikhutshwa yi-Android emva kokuyekiswa kwe-ActionBar. …
- Ifayile: umsebenzi.xml. Yenza umsebenzi. …
- Ifayile: build.gradle. …
- Ifayile: MainActivity.java. …
- Ifayile: MyAdapter.java. …
- Ifayile: HomeFragment.java. …
- Ifayile: fragment_home.xml. …
- Ifayile: SportFragment.java.
Yintoni iPagerAdapter?
destroyItem(ViewGroup, int, Object) getCount() isViewFromObject(Jonga, Object) … IViewPager inxulumanisa iphepha ngalinye nesitshixo seNto endaweni yokusebenza ngokuJonga ngokuthe ngqo. Eli qhosha lisetyenziselwa ukulandelela kunye chonga ngokukodwa iphepha elinikiweyo elizimeleyo yokuma kwayo kwiadaptha.
Ndingasebenzisa ntoni endaweni yeFragmentpageradapter?
Le klasi ivaliwe. Tshintshela kwi-ViewPager2 kwaye usebenzise FragmentStateAdapter endaweni yoko.
Ndiyifakela njani iViewPager kwi-Android?
Iwijethi ye-Android ViewPager ifumaneka kwithala leencwadi kwaye ivumela umsebenzisi ukuba aswayiphe ngasekhohlo okanye ngasekunene ukuze abone isikrini esitsha ngokupheleleyo. Namhlanje sisebenzisa iViewPager ngo usebenzisa iiJongo kunye nePagerAdapter. Nangona sinokusebenzisa okufanayo ngokusebenzisa amaqhekeza, kodwa siza kuxubusha oko kwisifundo esilandelayo.
Ndiyikhupha njani iViewPager kwi-Android?
pagerAdapter = iPagerAdapter entsha(getSupportFragmentManager()); mViewPager = (ViewPager) fumanaViewById(R. id. isikhongozeli); kuba (int i = 0; i <10; i++) {newfragment fragobj = newfragment (); ifragobj.
Ndiyenza njani i-ViewPager ethe nkqo kwi-Android?
Ndinesisombululo esindisebenzelayo ngamanyathelo amabini.
- onInstantiateItem() yePagerAdapter , yenza imboniselo kwaye uyijikelezise ngo -90: view.setRotation(-90f) Ukuba usebenzisa FragmentPagerAdapter , ngoko: objFragment.getView().setRotation(-90)
- Jikelezisa imboniselo yePager ngama-90 degree: objViewPager.setRotation(90)
Yintoni ukusetyenziswa kweViewPager kwi-Android?
I-ViewPager yiwijethi leyo ivumela umsebenzisi ukuba aswayiphe ekhohlo okanye ekunene ukuze abone isikrini esitsha ngokupheleleyo. Ngandlela ithile, yindlela entle yokubonisa umsebenzisi iithebhu ezininzi. Ikwanesakhono sokongeza kunye nokususa amaphepha (okanye iithebhu) nangaliphi na ixesha.
Yintoni umahluko phakathi kweFragmentPagerAdapter kunye neFragmentStatePagerAdapter?
Njengoko ndichaze iFragmentPagerAdapter igcina yonke iqhekeza kwinkumbulo, kwaye inokunyusa inkumbulo ngaphezulu kwentloko ukuba isixa esikhulu samaqhekeza sisetyenziswa kwiViewPager. Ngokuchaseneyo nomntakwenu, iFragmentStatePagerAdapter igcina kuphela iStateInstanceState egciniweyo yamaqhekeza, kwaye itshabalalisa onke amaqhekeza xa ephulukana nokugxila.
Ndiyifakela njani iViewPager?
Yongeza i-ViewPager
- Icwangcisa imboniselo yesiqulatho ibe luyilo ngeViewPager.
- Yenza udidi olwandisa iFragmentStatePagerAdapter iklasi engabonakaliyo kwaye iphumeze indlela ye getItem () ukunika imizekelo yeScreenSlidePageFragment njengamaphepha amatsha. …
- Idibanisa iPagerAdapter kwiViewPager.