Uma umlayezo wokusakaza ufika kumamukeli, i-Android ibiza indlela yayo ye-onReceive() futhi iwudlulise Into Yenhloso equkethe umlayezo. Isamukeli sokusakaza sibhekwa njengesisebenzayo kuphela ngenkathi senza le ndlela. Uma i-onReceive() ibuya, ayisebenzi.
Siyini isamukeli sokusakaza ku-Android?
Isamukeli sokusakaza siyi ingxenye ye-Android ekuvumela ukuthi uthumele noma wamukele isistimu ye-Android noma imicimbi yohlelo lokusebenza. Zonke izinhlelo zokusebenza ezibhalisiwe zaziswa isikhathi sokusebenza se-Android uma umcimbi wenzeka. Isebenza ngokufana nephethini yokuklama yokushicilela-ukubhalisa futhi isetshenziselwe ukuxhumana kwezinqubo phakathi kwezinqubo ezingavumelaniyo.
Kusetshenziselwani ukusakazwa nezamukeli zokusakaza ku-Android?
Ukubuka konke Kwesamukeli Sokusakaza. Isamukeli sokusakaza siyingxenye ye-Android okuvumela uhlelo lokusebenza ukuthi luphendule imilayezo (Inhloso ye-Android ) esakazwa isistimu yokusebenza ye-Android noma uhlelo lokusebenza.
Yiziphi izamukeli zokusakaza zochungechunge ezizosebenza ku-Android?
Izogijima ku intambo yomsebenzi oyinhloko(uchungechunge lwe-UI). Imininingwane lapha nalapha. Izamukeli Zokusakazwa kwe-Android ziyisiqalo ngokuzenzakalela kuchungechunge lwe-GUI (uchungechunge oluyinhloko) uma usebenzisa i-RegistererReceiver(broadcastReceiver, intentFilter). Uma usebenzisa i-HandlerThread, qiniseka ukuthi uyaphuma ochungechungeni ngemva kokususa ukubhalisa i-BroadcastReceiver.
Usiqalisa kanjani isamukeli sokusakaza?
Nasi isixazululo esiphephe kakhulu:
- I-AndroidManifest.xml :
- Isigaba somphakathi se-CustomBroadcastReceiver.java I-CustomBroadcastReceiver inweba i-BroadcastReceiver {@Override void public onReceive(Ingqikithi yokuqukethwe, inhloso) {// yenza umsebenzi }}
Ngazi kanjani uma isamukeli sami sokusakaza siyasebenza?
3 Izimpendulo. Uma ufuna ukuyihlola ngesikhathi sokusebenza ungagcina okuguquguqukayo kwe-boolean emhlabeni wonke futhi ukusethe kokuthi amanga futhi ngaphakathi kwe-onReceive() yakho ukubeke kokuthi iqiniso futhi ngaphambi kokuthi i-onReceive() iphume ibuyisele kokuthi amanga . nganoma yisiphi isikhathi ungabheka lokhu kuguquguquka komhlaba wonke ukuze usho ukuthi umamukeli wokusakaza uyasebenza noma cha.
Uyini umkhawulo wabamukeli bokusakaza?
Ngokusho Kwemikhawulo Yokusakaza, "Izinhlelo zokusebenza eziqondise i-Android 8.0 noma ngaphezulu azisakwazi ukubhalisa abamukeli bokusakazwa ngokusakaza okungacacile ku-manifest yabo. Ukusakaza okungaqondile ukusakaza okungaqondile lolo hlelo lokusebenza.
Kuyini ukusetshenziswa kwe-JNI ku-Android?
I-JNI iyi-Java Native Interface. It ichaza indlela ye-bytecode ehlanganiswa yi-Android kusuka kukhodi ephethwe (ebhalwe ngezilimi zokuhlela ze-Java noma ze-Kotlin) ukuze uhlanganyele nekhodi yomdabu (ebhalwe ngo-C/C++).
Yiziphi iziteshi zokusakaza ku-Android?
I-Cell Broadcast ubuchwepheshe obuyingxenye ye-GSM standard (Protocol for 2G cell networks) futhi yakhelwe ukuletha imiyalezo kubasebenzisi abaningi endaweni. Ubuchwepheshe buphinde busetshenziswe ukusunduza izinsiza zababhalisile ezisekelwe endaweni noma ukuxhumana ngekhodi yendawo yeseli ye-Antenna kusetshenziswa i-Channel 050.
Ingabe isamukeli sokusakaza sisebenza ngemuva?
Ingemuva. Abamukeli bokusakaza bakhona izingxenye ku uhlelo lwakho lokusebenza lwe-Android olulalela emilayezweni esakazwayo(noma izehlakalo) ezivela ezindaweni ezihlukene: Kusukela kwezinye izinhlelo zokusebenza. Kusukela ohlelweni ngokwalo.
Ingabe isamukeli sokusakaza sihoxisiwe?
I-CONNECTIVITY_CHANGE i ehlisiwe kuzinhlelo zokusebenza eziqondise ku-N nangaphezulu. Ngokuvamile, izinhlelo zokusebenza akufanele zithembele kulokhu kusakaza futhi esikhundleni salokho zisebenzise i-JobScheduler noma i-GCMNetworkManager.
Ukusebenzisa kanjani ukusakaza?
Ulusebenzisa kanjani uhlu lokusakaza
- Iya ku-WhatsApp > Izinketho ezengeziwe > Ukusakaza okusha.
- Sesha noma khetha abathintwayo ofuna ukubangeza.
- Thepha uphawu lokuhlola .
Ubaphatha kanjani abemukeli bokusakaza?
Izinto ezimbili ezibalulekile okufanele sizenze ukuze sisebenzise isamukeli sokusakaza esicelweni sethu yilezi:
- Idala Isamukeli Sokusakaza:…
- Ukubhalisa i-BroadcastReceiver: …
- Isinyathelo 1: Dala Iphrojekthi Entsha. …
- Isinyathelo sesi-2: Ukusebenza ngefayela elithi activity_main.xml. …
- Isinyathelo sesi-3: Ukusebenza ngefayela le-MainActivity. …
- Isinyathelo sesi-4: Dala ikilasi elisha.
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”.
Ngingawagcina kanjani amanani amakhulu edatha ku-Android?
Sebenzisa isizindalwazi, dala ithebula bese ufaka yonke idatha kuyo. Uma udinga idatha vele uvule umbuzo, futhi usuqedile. SQLite ilungele i-Android. Kuye ngohlobo lwedatha ofuna ukuyigcina, ungasebenzisa Isizindalwazi se-SQLite (esihlinzekwe nge-Android) uma sinesakhiwo sesizindalwazi esivamile.