Ezimweni eziningi, lonke uhlelo lokusebenza lwe-Android lusebenza ngenqubo yalo ye-Linux. … Kunalokho, kunqunywa isistimu ngenhlanganisela yezingxenye zohlelo uhlelo ezaziyo ukuthi ziyasebenza, ukuthi lezi zinto zibaluleke kangakanani kumsebenzisi, nokuthi ingakanani inkumbulo iyonke etholakala ohlelweni.
Kungani i-Android isebenzisa uhlelo lokusebenza ngaphakathi kwenqubo ehlukile?
Izinqubo ze-Android: zichazwe!
Kanjalo, uhlelo lokusebenza ngalunye lusebenza ngenqubo yalo (nge-PID ehlukile): lokhu ivumela uhlelo lokusebenza ukuthi luphile endaweni engayodwa, lapho ingeke ivinjwe ezinye izinhlelo zokusebenza/izinqubo.
Zingaki izinqubo ezenzeka kumjikelezo wempilo we-android?
The Izimpilo ezintathu ye-Android
Ukuphila Konke: isikhathi esiphakathi kwekholi yokuqala eya ku-onCreate() ocingweni olulodwa lokugcina oluya ku-onDestroy(). Singase sicabange ngalokhu njengesikhathi esiphakathi kokusetha isimo sokuqala somhlaba sohlelo lokusebenza ku-onCreate() kanye nokukhishwa kwazo zonke izisetshenziswa ezihlotshaniswa nohlelo lokusebenza ku-onDestroy().
Iyini inqubo ye-android?
Ungakwazi futhi ukusetha i-android:process ukuze izingxenye zezinhlelo zokusebenza ezahlukene zisebenza ngenqubo efanayo-kuncike ekutheni izinhlelo zokusebenza zabelana nge-ID yomsebenzisi we-Linux futhi zisayinwe ngezitifiketi ezifanayo. … Inqubo iyaqalwa futhi kulezo zingxenye uma kunomsebenzi okufanele ziwenze.
Iyini inqubo ebonakalayo ku-Android?
Inqubo ebonakalayo yi-a inqubo lapho umsebenzi ungabonakala kumsebenzisi. Umsebenzisi akasebenzisani ngokuqondile nale nqubo, njengoba umsebenzi uhambisana nale nqubo uzohlanganiswa kancane ngomunye umsebenzi futhi inqubo izoba kusimo se-onPause() somjikelezo wokuphila.
Ingabe isevisi ye-Android iyinqubo ehlukile?
Isexwayiso: Isevisi isebenza kuchungechunge oluyinhloko lwenqubo yokubamba; isevisi ayidali intambo yayo futhi ayisebenzi ngenqubo ehlukile ngaphandle uma usho okuhlukile. Kufanele uqalise noma yimiphi imisebenzi yokuvimbela kuchungechunge oluhlukene ngaphakathi kwesevisi ukuze ugweme amaphutha e-Application Not Responding (ANR).
Yiziphi izinhlobo ezimbili eziyinhloko zentambo ku-Android?
I-Android inezinhlobo ezine eziyisisekelo zochungechunge. Uzobona amanye amadokhumenti ekhuluma nakakhulu, kodwa sizogxila ku-Thread, Isibambi , AsyncTask , nento ebizwa ngokuthi i-HandlerThread . Kungenzeka ukuthi uzwile i-HandlerThread esanda kubizwa nge-“Handler/Looper combo”.
Uyini umjikelezo wempilo wohlelo lokusebenza lwe-Android?
Imiqondo yomjikelezo wokuphila womsebenzi
Ukuze uzulazule ezinguqukweni phakathi kwezigaba zomjikelezo wempilo yomsebenzi, ikilasi Lomsebenzi lihlinzeka ngesethi eyinhloko yama-callback ayisithupha: onCreate() , onStart() , onResume() , onPause() , onStop() , futhi onDestroy() . Isistimu icela ukushayelwa ngakunye kwalokhu njengoba umsebenzi ungena esimweni esisha.
Iyini indlela ye-onCreate ku-Android?
onCreate is esetshenziswa ukuqala umsebenzi. i-super isetshenziselwa ukubiza umakhi wekilasi lomzali. I-setContentView isetshenziselwa ukusetha i-xml.
Yiziphi izingxenye eziyinhloko ku-Android?
Izinhlelo zokusebenza ze-Android zihlukaniswe izingxenye ezine eziyinhloko: imisebenzi, amasevisi, abahlinzeki bokuqukethwe, nabamukeli bokusakaza. Ukusondela ku-Android kusuka kulezi zingxenye ezine kunikeza unjiniyela umkhawulo wokuncintisana ukuze abe i-trendsetter ekuthuthukisweni kwesicelo seselula.
Yini umsebenzi ku-Android ngesibonelo?
Usebenzisa umsebenzi njengesigaba esingaphansi sekilasi Lomsebenzi. Umsebenzi inikeza iwindi lapho uhlelo lokusebenza ludonsa i-UI yalo. … Ngokuvamile, umsebenzi owodwa usebenzisa isikrini esisodwa kuhlelo lokusebenza. Ngokwesibonelo, omunye wemisebenzi yohlelo lokusebenza ungase usebenzise isikrini esithi Okuthandwayo, kuyilapho omunye umsebenzi usebenzisa okuthi Khetha isikrini sesithombe.
Iyini ukusetshenziswa kwekilasi lesicelo ku-Android?
Ikilasi Lohlelo lokusebenza ku-Android yikilasi lesisekelo ngaphakathi kohlelo lokusebenza lwe-Android oluqukethe zonke ezinye izingxenye ezifana nemisebenzi namasevisi. Ikilasi lohlelo lokusebenza, nanoma yisiphi isigaba esingaphansi sesigaba sohlelo lokusebenza, siqalwa ngaphambi kwanoma yisiphi esinye isigaba lapho inqubo yesicelo/iphakheji yakho idalwa.