Uthenga wowulutsa ukafika kwa wolandila, Android imayimbira njira yake ya onReceive() ndikuupatsira chinthu cha Intent chomwe chili ndi uthengawo. Wolandira wailesi amaonedwa kuti akugwira ntchito pokhapokha akugwiritsa ntchito njirayi. Pamene onReceive() ibwerera, imakhala yosagwira ntchito.
Kodi cholandila pawailesi pa Android ndi chiyani?
Broadcast receiver ndi gawo la Android lomwe limakupatsani mwayi wotumiza kapena kulandira pulogalamu ya Android kapena zochitika zamapulogalamu. Mapulogalamu onse olembetsedwa amadziwitsidwa ndi nthawi ya Android ikangochitika. Zimagwira ntchito mofanana ndi mawonekedwe osindikizira-kulembetsa ndipo amagwiritsidwa ntchito poyankhulana mosagwirizana.
Kodi mawayilesi ndi zolandila zamawayilesi amagwiritsidwa ntchito pa Android?
Chidule cha Broadcast Receiver. Wolandila wailesi ndi gawo la Android zomwe zimalola pulogalamu kuyankha mauthenga (Android Intent ) omwe amawulutsidwa ndi opareshoni ya Android kapena pulogalamu.
Ndi zolandila ulusi ziti zomwe zimagwira ntchito mu Android?
Idzayenda mu main activity thread(aka UI thread). Tsatanetsatane apa & apa. Zolandila za Android Broadcast zimayambira mwachisawawa mu ulusi wa GUI (ulusi waukulu) ngati mugwiritsa ntchito RegisterReceiver(broadcastReceiver, intentFilter). Mukamagwiritsa ntchito HandlerThread, onetsetsani kuti mwatuluka ulusi mutasiya kulembetsa BroadcastReceiver.
Kodi mumayambitsa bwanji wolandila wailesi?
Nayi njira yotetezeka yamtundu wina:
- AndroidManifest.xml :
- CustomBroadcastReceiver.java gulu la anthu CustomBroadcastReceiver limakulitsa BroadcastReceiver {@Override void public onReceive(Context, Intent Intent) {// chitani ntchito}}
Kodi ndingadziwe bwanji ngati cholandila changa chowulutsa chikuyenda?
3 Mayankho. Ngati mukufuna kuyang'ana pa nthawi yothamanga mutha kusunga zosinthika zapadziko lonse lapansi ndikuziyika kukhala zabodza ndipo mkati mwa onReceive() yanu ikani kuti ikhale yowona ndi isanatuluke onReceive() ikhazikitsenso kukhala zabodza . nthawi iliyonse mutha kuyang'ana izi zapadziko lonse lapansi kuti muwone ngati wolandila akuyenda kapena ayi.
Kodi malire a olandila mawayilesi ndi chiyani?
Malinga ndi Broadcast Limitations, "Mapulogalamu omwe amayang'ana Android 8.0 kapena kupitilira apo sangathenso kulembetsa zolandirira zowulutsa kuti aziwulutsa mwachiwonetsero. Kuwulutsa kwathunthu ndi kuwulutsa komwe sikumatsata pulogalamuyo.
Kodi kugwiritsa ntchito JNI pa Android ndi chiyani?
JNI ndi Java Native Interface. Iwo imatanthauzira njira ya bytecode yomwe Android imapanga kuchokera ku code yoyendetsedwa (yolembedwa m'zilankhulo za Java kapena Kotlin) kuti mulumikizane ndi ma code anu (olembedwa mu C/C ++).
Kodi mayendedwe owulutsa pa Android ndi ati?
Cell Broadcast ndi ukadaulo womwe uli gawo la GSM standard (Protocol for 2G cellular network) ndipo idapangidwa kuti izipereka. mauthenga kwa ogwiritsa ntchito angapo mdera. Ukadaulowu umagwiritsidwanso ntchito kukankhira ntchito zolembetsa zotengera malo kapena kulumikizana ndi ma code a Antenna cell pogwiritsa ntchito Channel 050.
Kodi cholandila chowulutsa chimagwira ntchito kumbuyo?
Mbiri. Zolandila zowulutsa ndi zigawo mu pulogalamu yanu ya Android yomwe imamvetsera pa mauthenga (kapena zochitika) kuchokera kumalo osiyanasiyana: Kuchokera kuzinthu zina. Kuchokera ku dongosolo lokha.
Kodi cholandila chawayilesi chatsitsidwa?
CONNECTIVITY_CHANGE ndi adanyozedwa kwa mapulogalamu omwe akuloza N ndi apamwamba. Nthawi zambiri, mapulogalamu sayenera kudalira pawailesiyi ndipo m'malo mwake agwiritse ntchito JobScheduler kapena GCMNetworkManager.
Kodi mumagwiritsa ntchito bwanji wailesi?
Momwe mungagwiritsire ntchito mindandanda yowulutsira
- Pitani ku WhatsApp> Zosankha zambiri> Kuwulutsa kwatsopano.
- Sakani kapena sankhani omwe mukufuna kuwonjezera.
- Dinani chizindikiro.
Kodi mumayendetsa bwanji zolandilira pawayilesi?
Zinthu ziwiri zazikulu zomwe tiyenera kuchita kuti tigwiritse ntchito wolandila pawailesi yathu ndi:
- Kupanga Broadcast Receiver:…
- Kulembetsa BroadcastReceiver:…
- Gawo 1: Pangani Ntchito Yatsopano. …
- Gawo 2: Gwiritsani ntchito fayilo ya activity_main.xml. …
- Khwerero 3: Kugwira ntchito ndi fayilo ya MainActivity. …
- Gawo 4: Pangani kalasi yatsopano.
Kodi mitundu iwiri ikuluikulu ya ulusi mu Android ndi iti?
Android ili ndi mitundu inayi yoyambira ya ulusi. Mudzawona zolembedwa zina zambiri, koma tiyang'ana kwambiri pa Thread, Handler , AsyncTask , ndi chinachake chotchedwa HandlerThread . Mwinamwake mudamvapo HandlerThread ikungotchedwa "Handler/Looper combo".
Kodi ndingasungire bwanji ma data ambiri mu Android?
Gwiritsani ntchito database, pangani tebulo ndikuyika zonse momwemo. Mukafuna deta ingoyatsirani funsolo, ndipo mwatha. SQLite ndiyabwino kwa Android. Kutengera mtundu wa data yomwe mukufuna kusunga, mutha kugwiritsa ntchito SQLite Database (yoperekedwa ndi Android) ngati ili ndi dongosolo lazolowera.