ungathuthela kwesinye isiqeshana ngokusebenzisa i-FragmentManager transactions. I-fragment ayikwazi ukubizwa njengemisebenzi,. Izingcezu zikhona mayelana nokuba khona kwemisebenzi.
Uqala kanjani isiqeshana esisodwa kwesinye?
Okokuqala udinga isibonelo sesiqephu sesi-2. Ngemuva kwalokho kufanele ube nezinto ze-FragmentManager ne-FragmentTransaction. Ikhodi ephelele injengoba ingezansi, Fragment2 fragment2=new Fragment2(); FragmentManager fragmentManager=getActivity().
Ngisuka kanjani kwesinye isiqeshana siye kwesinye e-Kotlin?
Lesi sibonelo sibonisa indlela yokuthumela idatha kusuka kucezu olulodwa kuya kolunye usebenzisa i-Kotlin. Isinyathelo 1 − Dala iphrojekthi entsha ku-Android Studio, hamba kokuthi Ifayela ⇉ Iphrojekthi Entsha bese ugcwalisa yonke imininingwane edingekayo ukuze udale iphrojekthi entsha. Isinyathelo sesi-3 − Dala ama-FragmentActivity amabili bese wengeza amakhodi anikezwe ngezansi.
Ulubiza kanjani ucezu olusuka kwesinye isiqeshana?
I-Android FragmentManager kanye ne-FragmentTransaction Example | Buyisela Ucezu ngolunye Ucezu usebenzisa Inkinobho ye-OnClickListener
- beginTransaction(): Ngokubiza le ndlela, siqala umsebenzi wesiqephu bese sibuyisela i-FragmentTransaction.
- findFragmentById(int id) : Ngokudlula i-id, ibuyisela isibonelo sesiqephu.
9 awu. 2015 g.
Usifihla kanjani isiqeshana?
Ungaphazamisi ukubonakala kwamafulegi esiqukathi – FragmentTransaction. hide/show ikwenzela wena lokho ngaphakathi. Sawubona, uyakwenza ngokusebenzisa le ndlela, zonke izingcezu zizohlala esitsheni uma sezengezwe ekuqaleni bese sivele siveze ucezu olufunayo bese sifihla ezinye ngaphakathi kwesitsha.
Usibulala kanjani ucezu?
i-fragmentManager. beginTransaction(). esikhundleni (R.
Uzoyidlulisela kanjani idatha isuka kwesinye isiqeshana uye kwesinye ku-Android usebenzisa isixhumi esibonakalayo?
Indlela enhle yokwenza lokho ukuchaza isixhumi esibonakalayo se-callback ngaphakathi kwesiqephu futhi udinge ukuthi umsebenzi womsingathi akusebenzise. Uma umsebenzi uthola ukuphinda ushayelwe ngesixhumi esibonakalayo, ungabelana ngolwazi nezinye izingcezu zesakhiwo njengoba kudingeka.
Uzulazula kanjani usuka kwesinye isiqeshana uye kwesinye ku-Android usebenzisa ukuzulazula?
Uhamba Kanjani Phakathi Kwezicucu Ukusebenzisa Ingxenye Yokuzulazula
- Engeza ukuncika kwengxenye yokuzulazula.
- Dala insiza yegrafu yokuzulazula.
- Engeza i-NavHostFragment kusakhiwo se-MainActivity.
- Dala Izenzo ezivumela ukuzulazula phakathi kwezindawo okuyiwa kuzo ku-Navigation Graph.
- Sebenzisa i-NavController ukuze Uzulazule Ngokuhlelekile Phakathi Kwezingcezu.
Ithumela kanjani idatha kusuka kungcezu iye kumsebenzi ku-Android?
Ukuze uvumele Ucezu ukuthi luxhumane nomsebenzi walo, ungachaza isixhumi esibonakalayo ekilasini Locezu futhi ulusebenzise ngaphakathi Komsebenzi. I-Fragment ithwebula ukusetshenziswa kwesixhumi esibonakalayo phakathi nendlela yayo ye-onAttach() yomjikelezo wokuphila futhi ingashayela izindlela ze-Interface ukuze uxhumane nomsebenzi.
Ngisishintsha kanjani isiqeshana?
Sebenzisa i-replace() ukuze umiselele isiqeshana esikhona esitsheni ngesibonelo sesigaba esisha sesiqephu osinikezayo. I-calling replace() kulingana nokubiza okuthi susa() ngesiqephu esitsheni kanye nokwengeza isiqeshana esisha kuleso siqukathi esifanayo. ukuthengiselana. bophezela ();
Singakwazi kanjani ukudala ukuxhumana phakathi komsebenzi nocezu?
Ungakha isixhumi esibonakalayo esisesidlangalaleni ngesimemezelo somsebenzi kucezu futhi usebenzise isixhumi esibonakalayo emsebenzini. Khona-ke ungakwazi ukubiza umsebenzi kusukela kucezu. Ngisebenzisa i-Intents ukuxhumana ngezenzo emuva kumsebenzi oyinhloko.
Kuyini ucezu ngesiNgisi?
Izingcezu ziyimisho engaphelele. Ngokuvamile, izingcezu ziyizingcezu zemisho ezinqanyuliwe esigatshaneni esikhulu. Enye yezindlela ezilula zokuzilungisa ukususa inkathi phakathi kocezu nesigatshana somthetho. Ezinye izinhlobo zezimpawu zokubhala zingadingeka emshweni osanda kuhlanganiswa.
Wazi kanjani ukuthi ucezu luyabonakala?
I-isResumed() kuphela eyenza isiqiniseko sokuthi isiqeshana sakho siphambi komsebenzisi futhi umsebenzisi angaxhumana naso uma kuyilokho okufunayo. Into eyodwa okufanele uyiqaphele, ukuthi i-isVisible() ibuyisela isimo esibonakalayo sesiqephu samanje.
Iyini i-Android fragment?
I-Fragment imele ingxenye engasetshenziswa kabusha ye-UI yohlelo lwakho lokusebenza. Isiqeshana sichaza futhi silawule isakhiwo saso, sinomjikelezo waso wempilo, futhi singasingatha imicimbi yaso yokokufaka. Izingcezu azikwazi ukuphila ngokwazo–kumele zisingathwe umsebenzi noma esinye isiqephu.
Ngisinamathisela kanjani isiqeshana kumsebenzi?
Engeza isiqeshana kumsebenzi
Ungakwazi ukwengeza isiqeshana sakho ekubukeni kwesigaba somsebenzi ngokuchaza isiqeshana sefayela lesakhiwo somsebenzi wakho noma ngokuchaza isiqukathi sesiqephu sefayela lesakhiwo somsebenzi wakho bese wengeza ngokohlelo isiqeshana esivela ngaphakathi komsebenzi wakho.