Menene ayyukan Android?
Android sabis ne bangaren da ake amfani da shi don yin ayyuka a bango kamar kunna kiɗa, sarrafa ma'amalar cibiyar sadarwa, masu samar da abun ciki masu mu'amala da sauransu. Ba shi da UI (mai amfani da ke dubawa). Sabis ɗin yana aiki a bango har abada ko da aikace-aikacen ya lalace.
Menene manyan nau'ikan ayyuka guda biyu a cikin Android?
Android tana da ayyuka iri biyu: ayyuka masu ɗaure da marasa iyaka. Sabis da ba a ɗaure ba zai yi aiki a bayan tsarin aiki na wani lokaci mara iyaka, koda lokacin da aikin da ya fara wannan sabis ɗin zai ƙare nan gaba. Sabis mai ɗaure zai yi aiki har sai aikin da ya fara sabis ɗin ya ƙare.
Lokacin da ake kiran sabis na farawa () wane sabis ɗin aka ƙirƙira?
Fara sabis
Tsarin Android yana kira Hanyar onStartCommand() sabis ɗin kuma ya wuce shi da niyya , wanda ke fayyace sabis ɗin farawa. Lura: Idan app ɗinku yana hari matakin API 26 ko sama da haka, tsarin yana sanya hani akan amfani ko ƙirƙirar sabis na bango sai dai idan app ɗin yana kan gaba.
Menene tsarin rayuwar sabis?
Zagayowar rayuwa samfurin/sabis shine tsarin da ake amfani da shi don gano matakin da samfur ko sabis ke cin karo da shi a wancan lokacin. Matakansa guda huɗu - gabatarwa, girma, balaga, da raguwa - kowanne yana bayyana abin da samfur ko sabis ɗin ke faruwa a wancan lokacin.
Me ake nufi da jigo a Android?
Taken shine tarin sifofi da aka yi amfani da su ga ɗaukacin app, ayyuka, ko matsayi na gani-ba kawai ra'ayi na mutum ɗaya ba. Lokacin da kuka yi amfani da jigo, kowane kallo a cikin ƙa'idar ko aiki yana aiki da kowane sifofin jigon da yake goyan bayan.
Menene Android BroadcastReceiver?
Mai karɓar watsa shirye-shirye shine wani bangaren Android wanda ke ba ka damar aikawa ko karɓar tsarin Android ko abubuwan aikace-aikacen. Misali, aikace-aikace na iya yin rajista don abubuwan da suka faru na tsarin daban-daban kamar boot cikakke ko ƙarancin baturi, kuma tsarin Android yana aika watsa shirye-shirye lokacin da takamaiman abin ya faru.
Menene Android ViewGroup?
ViewGroup ra'ayi ne na musamman wanda zai iya ƙunsar wasu ra'ayoyi. ViewGroup shine Base class for Layouts in android, kamar LinearLayout , RelativeLayout , FrameLayout da dai sauransu. A wasu kalmomi, ViewGroup ana amfani dashi gabaɗaya don ayyana shimfidar wuri wanda za a saita / tsara / jera ra'ayoyin akan allon android.
Yaushe ya kamata ku ƙirƙiri sabis?
Ƙirƙirar sabis tare da ayyukan da ba na tsaye ba sun dace lokacin da muke son amfani da su ayyuka a ciki aji na musamman watau ayyuka masu zaman kansu ko kuma lokacin da wani aji ke buƙatar shi watau aikin jama'a.
Nau'in sabis nawa ne a cikin Android?
akwai nau'i hudu na ayyukan Android: Bound Service - Sabis mai ɗaure sabis ne wanda ke da wasu sassa (yawanci Aiki) wanda ke ɗaure da shi. Sabis ɗin da aka ɗaure yana ba da keɓancewa wanda ke ba da damar ɓangaren da aka ɗaure da sabis ɗin don yin hulɗa da juna.
Menene tsarin rayuwar sabis a cikin Android?
Lokacin da aka fara sabis, yana da zagayowar rayuwa wanda ke zaman kansa daga ɓangaren da ya fara shi. The sabis na iya aiki a bango har abada, ko da bangaren da ya fara ya lalace.
Menene babban bangaren Android?
Aikace-aikacen Android an raba su zuwa manyan sassa huɗu: ayyuka, ayyuka, masu samar da abun ciki, da masu karɓar watsa shirye-shirye. Kusanci Android daga waɗannan abubuwa guda huɗu yana ba mai haɓaka damar yin gasa don zama mai haɓakawa a haɓaka aikace-aikacen wayar hannu.