5 Mayankho. Wopanga Mapulogalamu adzatchedwa poyamba. Kenako Ntchito::onCreate() njira idzatchedwa. Chokhacho chomwe ndikudziwa ndikuti ngati Pulogalamuyo ili ndi ContentProvider, imatha kulandira mafoni Ntchito isanachite.
Kodi chimatchedwa chiyani pamene ntchito ili paCreate?
Kuitanidwa pamene ntchito ikuyamba, ntchito iliyonse, ntchito, kapena zinthu zolandila (kupatula opereka zinthu) zisanapangidwe.
Kodi onCreate imatchedwa nthawi zonse?
Njira ya OnCreate () imatchedwa iliyonse nthawi yomwe ntchito ikuwonetsedwa (yopangidwa). Chifukwa chake nthawi iliyonse mukayimba njira ya StartActivity(cholinga), njira ya OnCreate imatchedwa.
Chifukwa chiyani tikufunika kuyimbira setContentView () mu onCreate () ya kalasi ya zochitika?
Monga onCreate() ya Ntchito imatchedwa kamodzi kokha, apa ndi pomwe kuyambika kochuluka kuyenera kupita: kuyitana setContentView(int) kukulitsa UI yantchitoyo, pogwiritsa ntchito findViewById polumikizana mwadongosolo ndi ma widget mu UI, kuyimba manambalaQuery(android. net.
Kodi njira ya onCreate () ndi chiyani?
onCreate ndi amagwiritsidwa ntchito poyambitsa ntchito. Super imagwiritsidwa ntchito kutcha omanga kalasi ya makolo. setContentView imagwiritsidwa ntchito kukhazikitsa xml.
Kodi ndimagwiritsa ntchito bwanji OnPause pa Android?
Kagwiritsidwe paPause njira in android. app. Chidutswa
- FragmentManager fragmentManager;String tag;fragmentManager.findFragmentByTag(tag)
- FragmentManager fragmentManager;fragmentManager.findFragmentById(id)
- Zochita;String tag;activity.getFragmentManager().findFragmentByTag(tag)
Ndi njira iti yomwe imatchedwa kuwononga pulogalamuyi?
Njira za onStop () ndi onDestroy () kuitana, ndipo Android kuwononga ntchito. Ntchito yatsopano imapangidwa m'malo mwake. Ntchitoyi ikuwoneka koma osati kutsogolo.
Kodi njira ya FindViewById () imagwiritsidwa ntchito chiyani?
FindViewById(Int32)
Imapeza mawonedwe omwe adadziwika ndi id yochokera ndi XML zomwe zidakonzedwa mu OnCreate(Bundle).
Kodi moyo wa pulogalamu ya Android ndi chiyani?
Zambiri za Android Lifecycles
| Njira Zochita Zamoyo Zonse | ||
|---|---|---|
| Onetsani () | Amayitanitsidwa pomwe ntchito idapangidwa koyamba | Ayi |
| Yambitsanso () | Adayitanidwa ntchito itayima, isanayambenso | Ayi |
| onStart () | Amayitanitsidwa pamene ntchito ikuwonekera kwa wogwiritsa ntchito | Ayi |
| onanso () | Amayitanidwa pamene ntchito iyamba kuyanjana ndi wogwiritsa ntchito | Ayi |
Kodi SetContentView ndi chiyani?
SetContentView ndi amagwiritsidwa ntchito kudzaza zenera ndi UI yoperekedwa kuchokera Fayilo yokhala ndi setContentView(R. masanjidwe. somae_file). Apa fayilo ya masanjidwe imakwezedwa kuti muwone ndikuwonjezedwa ku zochitika za Activity(Window).
Kodi OnCreate imatchedwa kangati?
OnCreate idzangoyitanidwa nthawi imodzi pa moyo uliwonse wa Ntchito. Komabe, pali zinthu zingapo zomwe zingapangitse kuti ntchito yanu iphedwe ndikubwezeretsedwanso kumoyo. Chifukwa chake, onCreate idzayitanidwanso.