Umsebenzi umele isikrini esinye esinojongano lomsebenzisi njengefestile okanye isakhelo seJava. Umsebenzi we-Android yinxalenye yeklasi ye-ContextThemeWrapper. Ukuba usebenze ngoC, C++ okanye ulwimi lwenkqubo yeJava ngoko kufuneka ubone ukuba inkqubo yakho iqala kumsebenzi ongundoqo ().
Yintoni umsebenzi omiselweyo we-Android?
Kwi-Android, ungaqwalasela umsebenzi wokuqalisa (umsebenzi osele uhleli) wesicelo sakho ngokulandela "injongo-isihluzi" kwi-"AndroidManifest. xml". Jonga ikhowudi yamazwi alandelayo ukumisela iklasi yomsebenzi "logoActivity" njengomsebenzi osisiseko.
Zingaphi iintlobo zomsebenzi ezikhoyo kwi-Android?
Isithathu kwezine iindidi zamacandelo-imisebenzi, iinkonzo, kunye nabamkeli bosasazo-ziye zavulwa ngumyalezo ongahambelaniyo obizwa ngokuba yinjongo. Iinjongo zibophelela amalungu ngamanye ngexesha lokusebenza.
Uthini umahluko phakathi komsebenzi kunye nokujonga kwi-Android?
Imboniselo yiNkqubo yokuBonisa ye-Android apho uchaza ubeko ukubeka udidi oluphantsi lwemboniselo kuyo umz. Amaqhosha, iMifanekiso njl.njl. Kodwa uMsebenzi yiNkqubo yeSkrini ye-Android apho ubeka khona umboniso kunye nonxibelelwano lomsebenzisi, (okanye nayiphi na into enokuqulathwa kwifestile yesikrini esigcweleyo.)
Yintoni umahluko phakathi komsebenzi we-OnCreate kunye ne-OnStart?
onCreate () ibizwa ngokuba xa umsebenzi usenziwa okokuqala. onStart () ibizwa xa umsebenzi ubonakala kumsebenzisi.
Yintoni umsebenzi kwi-Android ngomzekelo?
Umsebenzi umele isikrini esinye esinojongano lomsebenzisi njengefestile okanye isakhelo seJava. Umsebenzi we-Android yinxalenye yeklasi yeContextThemeWrapper. Iklasi yoMsebenzi ichaza ezi call backs zilandelayo, okt iziganeko. Awudingi ukusebenzisa zonke iindlela zokufowuna.
Ndiwuseta njani umsebenzi omiselweyo?
Yiya kwi-AndroidManifest. xml kwisilawulo sengcambu yeprojekthi yakho kwaye utshintshe igama loMsebenzi ofuna ukuwenza kuqala. Ukuba usebenzisa iSitudiyo se-Android kwaye usenokuba ukhethe ngaphambili omnye uMsebenzi oza kuwusungula. Cofa ku Qhuba> Hlela uqwalaselo kwaye emva koko uqiniseke ukuba Qalisa umsebenzi ongagqibekanga ukhethiwe.
Uwubulala njani umsebenzi?
Qalisa isicelo sakho, vula uMsebenzi omtsha, yenza umsebenzi othile. Cofa iqhosha laseKhaya (isicelo siya kuba ngasemva, kwimeko yokumiswa). Bulala iSicelo - eyona ndlela ilula kukucofa nje iqhosha elibomvu elithi "yeka" kwi-Android Studio. Buyela emva kwisicelo sakho (ukuqaliswa kusetyenziso lwakutsha nje).
Yintoni umsebenzi?
Umsebenzi ubonelela ngefestile apho i-app izoba i-UI yayo. Le festile igcwalisa ikhusi, kodwa inokuba ncinane kunekhusi kwaye idande phezu kwezinye iifestile. Ngokubanzi, umsebenzi omnye usebenzisa isikrini esinye kwi-app.
Yintoni umsebenzi wesiqalisi se-Android?
Xa i-app iqaliswa ukusuka kwisikrini sasekhaya kwisixhobo se-Android, i-Android OS yenza umzekelo womsebenzi kwisicelo osibhengezile njengomsebenzi wesindululi. Xa uphuhlisa nge-Android SDK, oku kucacisiwe kwifayile ye-AndroidManifest.xml.
Isebenza njani injongo ye-Android?
Injongo yenjongo ithwele ulwazi olusetyenziswa yinkqubo ye-Android ukumisela ukuba leliphi ilungu ekufuneka liqalwe (elifana nelona gama lecandelo okanye udidi lwecandelo elifanele ukufumana injongo), kunye nolwazi olusetyenziswa licandelo lomamkeli ukuze likwazi ukwenza ngokufanelekileyo isenzo (ezifana ne inyathelo ekufuneka lithathwe kunye ...
Uthini umahluko phakathi komsebenzi kunye nenkonzo?
Umsebenzi kunye neNkonzo zibhloko zokwakha ezisisiseko ze-Android app. Ngokuqhelekileyo, uMsebenzi uphatha i-User Interface (UI) kunye nokusebenzisana nomsebenzisi, ngelixa inkonzo iphethe imisebenzi ngokusekelwe kwigalelo lomsebenzisi.
Ubiza njani iklasi kumsebenzi we-Android?
iklasi yoluntu uMsebenzi oPhambili wandisa i-AppCompatActivity {// Imeko yenye iClass ukuze isetyenziswe ngasese kwenye iClass enye iClass; @Override isithuba esikhuselweyo kwiCreate(I-Bundle savedInstanceState) {// Yenza umzekelo omtsha we- AnotherClass kunye // udlule umzekelo we-MainActivity ngokuthi "le" enye iClass = enye iClass entsha(le); …
Yintoni ukusetyenziswa kwe-OnStart kwi-Android?
onStart () Xa umsebenzi ungena kwimo yokuQalwa, inkqubo ibiza le callback. I-onStart () ifowuni yenza umsebenzi ubonakale kumsebenzisi, njengoko i-app ilungiselela umsebenzi wokungena kwi-foreground kwaye ibe yintsebenziswano. Umzekelo, le ndlela kulapho usetyenziso luqalisa khona ikhowudi egcina i-UI.
Uyisebenzisa njani i-OnCreate kwi-Android?
kwi-OnCreate(Inqwaba igciniweInstanceState) Umsebenzi kwi-Android:
Emva kokuba i-Orientation itshintshile emva koko i-OnCreate(Bundle savedInstanceState) iyakufowuna kwaye iphinde iwuphinde umsebenzi kwaye ilayishe yonke idatha kwi-savedInstanceState. Ngokusisiseko i-Bundle class isetyenziselwa ukugcina idatha yomsebenzi nanini na xa imeko ingaphezulu isenzeka kwi-app.
Yintoni inyanda Android?
Android Bundle isetyenziselwa ukudlulisa idatha phakathi kwemisebenzi. Amaxabiso aza kugqithiswa afakwe kwimephu kwizitshixo zeString ezithi kamva zisetyenziswe kumsebenzi olandelayo ukubuyisela amaxabiso. Okulandelayo ziindidi eziphambili ezigqithisiweyo/zifunyenwe kwi/kusuka kwi-Bundle.