Service : ndi gawo la android lomwe limagwira ntchito yayitali kumbuyo, makamaka popanda UI. Thread : ndi gawo la OS lomwe limakupatsani mwayi wochita ntchito kumbuyo. Ngakhale m'malingaliro onse amawoneka ofanana pali kusiyana kofunikira.
Kodi ntchito ya Android ndi ulusi?
Palibenso, monga momwe ntchito ilili "ndondomeko kapena ulusi". Zida zonse za pulogalamu ya Android zimayenda mkati mwadongosolo ndipo mwachisawawa zimagwiritsa ntchito ulusi umodzi wofunikira. Mutha kupanga ulusi wanu ngati mukufunikira. Service si ndondomeko kapena ulusi.
Kodi ulusi mu Android ndi chiyani?
Ulusi ndi ulusi wochita mu pulogalamu. Java Virtual Machine imalola kuti pulogalamuyo ikhale ndi ulusi wambiri wogwiritsa ntchito nthawi imodzi. Ulusi uliwonse uli ndi choyambirira. Ulusi womwe umakhala wofunika kwambiri umapangidwa m'malo mwa ulusi womwe umakhala wocheperako.
Kodi utumiki umayenda pa main thread Android?
A Service ndi gawo la pulogalamu ya Android yopanda UI yomwe imayenda pa ulusi waukulu (wakuchititsa). Iyeneranso kulengezedwa mu AndroidManifest. xml.
Kodi pali kusiyana kotani pakati pa ntchito ndi IntentService mu Android?
Gulu lautumiki limagwiritsa ntchito ulusi waukulu wa pulogalamuyo, pomwe IntentService imapanga ulusi wa ogwira ntchito ndikugwiritsa ntchito ulusiwo kuyendetsa ntchitoyo. IntentService imapanga mzere womwe umadutsa cholinga chimodzi nthawi imodzi ku onHandleIntent(). … IntentService imagwiritsa ntchito paStartCommand() yomwe imatumiza Cholinga ku mzere ndi ku onHandleIntent().
Kodi Android ingagwire ulusi zingati?
Izi ndi ulusi 8 pachilichonse chomwe foni imachita-zida zonse za android, kutumiza mameseji, kukumbukira kukumbukira, Java, ndi mapulogalamu ena aliwonse omwe akuyenda. Mukunena kuti ndizochepera 128, koma zowona zimangogwira ntchito pang'ono kuti mugwiritse ntchito kuposa pamenepo.
Kodi ulusi wotetezeka ndi chiyani mu Android?
Kugwiritsa ntchito Handler : http://developer.android.com/reference/android/os/Handler.html ndi otetezeka ulusi. … Kulemba njira yolumikizidwa ndi njira yopangira kuti ulusi ukhale wotetezeka - makamaka umapangitsa kuti ulusi umodzi ukhale mu njira nthawi iliyonse.
Kodi mitundu iwiri ikuluikulu ya ulusi mu Android ndi iti?
Android ili ndi mitundu inayi yoyambira ya ulusi. Mudzawona zolembedwa zina zokamba zambiri, koma tiyang'ana pa Thread , Handler , AsyncTask , ndi chinachake chotchedwa HandlerThread .
Kodi ulusi umagwira ntchito bwanji?
Ulusi ndi gawo la kuphedwa mkati mwa ndondomeko. … Ulusi uliwonse munjira umagawana kukumbukira ndi zothandizira. Muzochita zamtundu umodzi, ndondomekoyi imakhala ndi ulusi umodzi. Njira ndi ulusi ndizofanana, ndipo pali chinthu chimodzi chokha chomwe chikuchitika.
Kodi ulusi ungaphedwe bwanji mu Android?
Njira ya Thread. stop() yachotsedwa, mutha kugwiritsa ntchito Thread. currentThread (). kusokoneza (); ndiyeno ikani thread=null .
Kodi ndizotheka kuchita popanda UI mu Android?
Yankho ndiloti inde ndizotheka. Zochita siziyenera kukhala ndi UI. Zatchulidwa muzolemba, mwachitsanzo: Chochitika ndi chinthu chimodzi, chokhazikika chomwe wogwiritsa ntchito angachite.
Kodi kugwiritsa ntchito ntchito mu Android ndi chiyani?
Android utumiki ndi chigawo chimodzi kuti ntchito kuchita ntchito chapansipansi monga kuimba nyimbo, chogwirira ntchito maukonde, kucheza zili wosamalira etc. Iwo alibe UI (wosuta mawonekedwe). Ntchitoyi imakhala yakumbuyo mpaka kalekale ngakhale ntchito itawonongeka.
Kodi AsyncTask ndi ulusi?
AsyncTask idapangidwa kuti ikhale gulu lothandizira kuzungulira Thread ndi Handler ndipo silipanga chimango cholumikizira. AsyncTasks iyenera kugwiritsidwa ntchito pazochita zazifupi (masekondi pang'ono kwambiri.)
Kodi pali mitundu ingati ya mautumiki mu Android?
Pali mitundu inayi ya mautumiki a Android: Bound Service - Ntchito yomangidwa ndi ntchito yomwe ili ndi gawo lina (lomwe nthawi zambiri ndi Ntchito) yolumikizidwa nayo. Ntchito yomangidwa imapereka mawonekedwe omwe amalola kuti gawo lomangidwa ndi ntchito zizilumikizana.
Kodi asynchronous task mu Android ndi chiyani?
Mu Android, AsyncTask (Asynchronous Task) imatilola kuyendetsa malangizo kumbuyo ndikugwirizanitsanso ndi ulusi wathu waukulu. Kalasi iyi ipitilira njira imodzi mwachitsanzo doInBackground(Params) ndipo nthawi zambiri imadutsa njira yachiwiri paPostExecute(Result).
Kodi ndimayamba bwanji IntentService?
Mutha kuyambitsa IntentService kuchokera ku Activity kapena Fragment nthawi iliyonse mukamagwiritsa ntchito. Mukangoyimba foni startService() , IntentService imagwira ntchito yomwe ikufotokozedwa mu njira yake ya onHandleIntent(), ndiyeno imayimitsa yokha.