Kana meseji yekutepfenyura yasvika kune anogamuchira, Android inodaidza iyo onReceive() nzira uye inoipfuudza iyo Chinangwa chinhu chine meseji. Iyo yekutepfenyura inogamuchira inoonekwa seinoshanda chete pairi kuita iyi nzira. Kana paReceive() yadzoka, haishande.
Chii chinonzi nhepfenyuro inogamuchira muAndroid?
Broadcast receiver ndiyo chinhu cheAndroid chinokutendera kuti utumire kana kugamuchira Android system kana zviitiko zvekushandisa. Yese yakanyoreswa application inoziviswa neiyo Android runtime kana chiitiko chikaitika. Inoshanda zvakafanana nekushambadzira-kunyorera dhizaini maitiro uye inoshandiswa kune asynchronous inter-process kutaurirana.
Chii chinonzi nhepfenyuro uye vanogamuchira nhepfenyuro inoshandiswa muAndroid?
Broadcast Receiver Overview. A nhepfenyuro inogamuchira chinhu cheAndroid iyo inobvumira chishandiso kupindura kune mameseji (iyo Android Intent) inotepfenyurwa neiyo Android inoshanda sisitimu kana neapp.
Ndeipi tambo yenhepfenyuro inogamuchira ichashanda mu Android?
Ichamhanya mu shinda huru yekuita (aka UI thread). Details pano & pano. Android Nhepfenyuro inogashira ndeye default kutanga muGUI shinda (main thread) kana ukashandisa RegisterReceiver(broadcastReceiver, intentFilter). Paunenge uchishandisa HandlerThread, iva nechokwadi chekubuda mushinda mushure mekusanyoresa BroadcastReceiver.
Iwe unotanga sei nhepfenyuro inogamuchira?
Heino imwe mhando-yakachengeteka mhinduro:
- AndroidManifest.xml :
- CustomBroadcastReceiver.java yeruzhinji kirasi CustomBroadcastReceiver inowedzera BroadcastReceiver {@Override void void onReceive(Context context, Chinangwa) {// ita basa }}
Ndinoziva sei kana nhepfenyuro yangu inogamuchira iri kushanda?
3 Mhinduro. Kana iwe uchida kuitarisa panguva yekumhanya iwe unogona kuchengeta iyo yepasi rose boolean shanduko woiisa kune yenhema uye mukati meReceive yako () isa kuti ichokwadi uye pamberi peOnReceive() kubuda idzore kune nhema . chero nguva yaunogona kutarisa iyi shanduko yepasirese kuti uzive kana iyo nhepfenyuro inogamuchira iri kushanda kana kwete.
Ndeipi mipimo yevanogamuchira nhepfenyuro?
Zvinoenderana neBroadcast Limitations, "Zvishandiso zvinonangana ne Android 8.0 kana kupfuura hazvichakwanise kunyoresa vanogamuchira kutepfenyura kuitira kutepfenyura zviri pachena mumanifest yavo. Nhepfenyuro isina kujeka inhepfenyuro isinganangi app iyoyo chaizvo.
Chii chiri kushandiswa kweJNI mu Android?
JNI ndiyo Java Native Interface. It inotsanangura nzira yebytecode inounganidzwa neAroid kubva kukodhi yakagadziriswa (yakanyorwa muJava kana Kotlin programming mitauro) kudyidzana nekodhi kodhi (yakanyorwa muC/C ++).
Ndezvipi zviteshi zvekutepfenyura pa Android?
Cell Broadcast tekinoroji iri chikamu cheGSM standard (Protocol ye2G cellular network) uye yakagadzirirwa kuburitsa. mashoko kune vashandisi vakawanda munzvimbo. Iyo tekinoroji inoshandiswawo kusundira nzvimbo-yakavakirwa vanyoreri masevhisi kana kutaurirana nharaunda kodhi yeAntenna cell uchishandisa Channel 050.
Ko nhepfenyuro inogamuchira inoshanda kumashure?
Background. Broadcast vanogamuchira vari zvikamu mu yako Android application inoteerera panhepfenyuro mameseji (kana zviitiko) kubva kwakasiyana zvitoro: Kubva kune mamwe maapplication. Kubva kuhurongwa pachahwo.
Chiposhi chenhepfenyuro chakaregwa here?
CONNECTIVITY_CHANGE ndizvo deprecated yezvishandiso zvinonangana neN uye kumusoro. Kazhinji, maapplication haafanire kuvimba nenhepfenyuro iyi uye panzvimbo pezvo shandisa JobScheduler kana GCMNetworkManager.
Unoshandisa sei kutepfenyura?
Maitiro ekushandisa nhepfenyuro
- Enda kuWhatsApp> Dzimwe sarudzo> Nhepfenyuro itsva.
- Tsvaga kana sarudza mazita aunoda kuwedzera.
- Tokonya chiratidzo .
Iwe unogadzirisa sei vanogamuchira nhepfenyuro?
Zvinhu zviviri zvikuru zvatinofanira kuita kuti tishandise nhepfenyuro yekugamuchira mukushandisa kwedu ndeiyi:
- Kugadzira Broadcast Receiver:…
- Kunyoresa BroadcastReceiver:…
- Danho 1: Gadzira Chirongwa Chitsva. …
- Danho rechina: Kushanda neaction_main.xml faira. …
- Nhanho 3: Kushanda neiyo MainActivity faira. …
- Danho rechina: Gadzira kirasi itsva.
Ndeapi marudzi maviri makuru eshinda mu Android?
Android ine mhando ina dzakakosha dzeshinda. Iwe uchaona mamwe magwaro ekutaura nezvakawanda, asi isu tichatarisa pane Thread, Handler, AsyncTask, uye chimwe chinhu chinonzi HandlerThread . Iwe unogona kunge wakanzwa HandlerThread ichangodaidzwa kuti "Handler/Looper combo".
Ndingachengeta sei huwandu hukuru hwe data mu Android?
Shandisa dhatabhesi, gadzira tafura uye isa data rese mairi. Paunenge uchida iyo data ingopisa mubvunzo, uye wapedza. SQLite yakanakira Android. Zvichienderana nerudzi rwe data raunoda kuchengeta, unogona kushandisa SQLite Database (yakapihwa ne Android) kana iine yakajairwa dhatabhesi chimiro.