Umsebenzi umele isikrini esisodwa esinokusetshenziswa kubonwa njengewindi noma ifremu ye-Java. Umsebenzi we-Android uyingxenye yekilasi le-ContextThemeWrapper. Uma usebenze ngolimi lokuhlela lwe-C, C++ noma i-Java kufanele ngabe ubonile ukuthi uhlelo lwakho luqala ku-main() function.
Uyini umsebenzi ozenzakalelayo we-Android?
Ku-Android, ungamisa umsebenzi wokuqala (umsebenzi ozenzakalelayo) wohlelo lwakho lokusebenza ngokulandela "isihlungi senhloso" ku-"AndroidManifest. xml". Bona amazwibela ekhodi alandelayo ukuze ulungiselele isigaba somsebenzi "logoActivity" njengomsebenzi ozenzakalelayo.
Zingaki izinhlobo zomsebenzi ezikhona ku-Android?
Izinhlobo ezintathu kwezine zezingxenye—imisebenzi, amasevisi, nabamukeli bokusakaza—kwenziwa kusebenze umlayezo ongavumelaniyo obizwa ngokuthi inhloso. Izinhloso zihlanganisa izingxenye ezingazodwana kwenye ngesikhathi sokusebenza.
Uyini umehluko phakathi komsebenzi nokubuka ku-Android?
Ukubuka Isistimu Yokubonisa ye-Android lapho uchaza khona isakhiwo ukuze ufake izigaba ezingaphansi Zokubuka kuso isb. Izinkinobho, Izithombe njll. Kodwa Umsebenzi Uhlelo Lwesikrini lwe-Android lapho ubeka khona isibonisi kanye nokusebenzisana komsebenzisi, (noma yini engaqukethwe ewindini lesikrini esigcwele.)
Uyini umehluko phakathi komsebenzi we-OnCreate kanye ne-OnStart?
i-onCreate() ibizwa ngokuthi lapho umsebenzi udalwa okokuqala. i-onStart() ibizwa lapho umsebenzi usubonakala kumsebenzisi.
Yini umsebenzi ku-Android ngesibonelo?
Umsebenzi umele isikrini esisodwa esinokusetshenziswa kubonwa njengewindi noma ifremu ye-Java. Umsebenzi we-Android yikilasi le-ContextThemeWrapper. Ikilasi Lomsebenzi lichaza lezi zingcingo ezilandelayo okuyizehlakalo. Awudingi ukusebenzisa zonke izindlela zokuphinda ushayele.
Ngiwumisa kanjani umsebenzi ozenzakalelayo?
Iya ku-AndroidManifest. xml kufolda yempande yephrojekthi yakho bese ushintsha igama lomsebenzi ofuna ukulisebenzisa kuqala. Uma usebenzisa i-Android Studio futhi kungenzeka ukuthi wawukhethe ngaphambilini omunye Umsebenzi ozowuqalisa. Chofoza okuthi Run > Hlela ukucushwa bese uqinisekisa ukuthi Umsebenzi Wokuqalisa ozenzakalelayo ukhethiwe.
Uwubulala kanjani umsebenzi?
Yethula uhlelo lwakho lokusebenza, vula Umsebenzi omusha, yenza umsebenzi othile. Chofoza inkinobho ethi Ikhaya (uhlelo lokusebenza luzoba ngemuva, esimweni sokumiswa). Bulala Isicelo — indlela elula iwukuba uvele uchofoze inkinobho ebomvu ethi “misa” ku-Android Studio. Buyela emuva kuhlelo lwakho lokusebenza (qalisa ngezinhlelo zokusebenza zakamuva).
Yini umsebenzi?
Umsebenzi uhlinzeka ngewindi lapho uhlelo lokusebenza ludweba i-UI yalo. Leli windi ngokuvamile ligcwalisa isikrini, kodwa lingase libe lincane kunesikrini futhi lintante phezu kwamanye amawindi. Ngokuvamile, umsebenzi owodwa usebenzisa isikrini esisodwa kuhlelo lokusebenza.
Uyini umsebenzi wesiqalisi se-Android?
Uma uhlelo lokusebenza lwethulwa kusukela kusikrini sasekhaya kudivayisi ye-Android, i-Android OS idala isibonelo somsebenzi kuhlelo lokusebenza olumemezele njengomsebenzi wesiqalisi. Uma uthuthukiswa nge-Android SDK, lokhu kucaciswa kufayela le-AndroidManifest.xml.
Isebenza kanjani i-Android Intent?
Into Yenhloso iphethe ulwazi olusetshenziswa isistimu ye-Android ukunquma ukuthi iyiphi ingxenye okufanele iqale (njengegama lengxenye okuyiyonayona noma isigaba sengxenye okufanele sithole inhloso), kanye nolwazi olusetshenziswa ingxenye yomamukeli ukuze yenze isenzo kahle (njenge isenzo okufanele sithathwe kanye…
Uyini umehluko phakathi komsebenzi nesevisi?
Umsebenzi Nesevisi yizingqimba zokwakha eziyisisekelo zohlelo lokusebenza lwe-Android. Ngokuvamile, Umsebenzi uphatha Isixhumi Esibonakalayo somsebenzisi (i-UI) nokusebenzisana nomsebenzisi, kuyilapho isevisi isingatha imisebenzi ngokusekelwe kokokufaka komsebenzisi.
Ulishayela kanjani ikilasi kumsebenzi we-Android?
ikilasi lomphakathi i-MainActivity inweba i-AppCompatActivity {// I-Instance of AnotherClass ukuze isetshenziswe esikhathini esizayo esiyimfihlo i- AnotherClass anotherClass; @Override protected void onCreate(Bundle savedInstanceState) {// Dala isenzakalo esisha se-OtherClass kanye // nesibonelo sokudlula se-MainActivity ngokuthi “lokhu” anotherClass = new AnotherClass(lokhu); …
Iyini ukusetshenziswa kwe-onStart ku-Android?
onStart() Uma umsebenzi ungena kusimo sokuQaliswa, isistimu icela lokhu kuphinda kushayelwe. Ikholi ye-onStart() yenza umsebenzi ubonakale kumsebenzisi, njengoba uhlelo lokusebenza lulungiselela umsebenzi ukuze lungene ngaphambili futhi lusebenzisane. Isibonelo, le ndlela ilapho uhlelo lokusebenza luqalisa khona ikhodi egcina i-UI.
Uyisebenzisa kanjani i-OnCreate ku-Android?
Umsebenzi we-onCreate(Bundle savedInstanceState) ku-Android:
Ngemuva kokuthi ukuqondiswa kushintshile bese kuthi okuthiDala(Inqwaba igcinweIstanceState) izoshayela futhi idale kabusha umsebenzi futhi ilayishe yonke idatha esuka ku-savedInstanceState. Ikilasi le-Bundle ngokuyisisekelo lisetshenziselwa ukugcina idatha yomsebenzi noma nini lapho isimo esingaphezulu senzeka kuhlelo lokusebenza.
Iyini inqwaba ye-Android?
I-Android Bundle isetshenziselwa ukudlulisa idatha phakathi kwemisebenzi. Amanani azodluliswa afakwe kumephu kokuthi String keys ezisetshenziswa kamuva emsebenzini olandelayo ukuze kutholwe amanani. Okulandelayo yizinhlobo ezinkulu ezidluliswayo/ezibuyiswa ku/kusuka kunqwaba.