Video: Cov ntawv qhia zaub mov thiab hom zaub mov hauv Android yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Muaj peb hom menus hauv Android : Popup, Contextual thiab Options. Txhua tus muaj cov ntaub ntawv siv tshwj xeeb thiab cov lej uas mus nrog nws. Txhawm rau kawm paub siv lawv li cas, nyeem rau. Txhua zaub mov yuav tsum muaj cov ntaub ntawv XML ntsig txog nws uas txhais nws qhov layout.
Hais txog qhov no, dab tsi yog menus hauv Android?
Android Kev xaiv Cov ntawv qhia zaub mov yog thawj zaub mov ntawm hauv . Lawv tuaj yeem siv rau kev teeb tsa, tshawb nrhiav, rho tawm yam khoom thiab lwm yam. Ntawm no, peb yog inflating lub zaub mov los ntawm kev hu rau inflate() txoj kev ntawm MenuInflater chav kawm. Txhawm rau ua qhov kev tshwm sim tuav zaub mov cov khoom, koj yuav tsum override onOptionsItemSelected() txoj kev ntawm kev ua si chav kawm.
Tsis tas li ntawd, Android overflow menu yog dab tsi? Cov Overflow Menu Cov overflow zaub mov (tseem hu ua cov kev xaiv zaub mov ) yog a zaub mov uas yog siv tau rau tus neeg siv los ntawm lub cuab yeej tso saib thiab tso cai rau tus tsim tawm kom suav nrog lwm cov kev xaiv ntawm daim ntawv thov tshaj li cov uas suav nrog hauv cov neeg siv interface ntawm daim ntawv thov.
Ntawm no, cov ntawv qhia zaub mov yog dab tsi?
A zaub mov yog ib txheej ntawm cov kev xaiv nthuav tawm rau cov neeg siv ntawm daim ntawv thov hauv computer los pab tus neeg siv nrhiav cov ntaub ntawv lossis ua tiav cov haujlwm ua haujlwm. Cov ntawv qhia zaub mov muaj ntau yam hauv graphical user interfaces (GUI s) xws li Windows lossis Mac OS.
Dab tsi yog popup zaub mov hauv Android?
Hauv hauv , Popup Menu qhia a lis ntawm cov khoom hauv ib qho qauv popup qhov rais uas yog anched rau qhov pom. Cov popup zaub mov yuav tshwm sim hauv qab qhov pom yog tias muaj chav lossis siab dua qhov pom yog tias tsis muaj qhov chaw thiab nws yuav raug kaw cia li thaum peb kov sab nraum lub popup.
Pom zoo:
Cov ntaub ntawv hom thiab cov qauv ntaub ntawv yog dab tsi?
Cov qauv ntaub ntawv yog ib txoj hauv kev piav qhia txog ib txoj hauv kev los npaj cov ntaub ntawv kom ua haujlwm andalogrithms tuaj yeem siv tau yooj yim dua. Ib hom ntaub ntawv piav qhia txog cov ntaub ntawv uas txhua tus sib koom ua ke. Piv txwv li tus lej cov ntaub ntawv hom piav qhia txhua tus lej uas lub khoos phis tawj tuaj yeem ua tau
Dab tsi yog lub hom phiaj ntawm delimiters nyob rau hauv cov ntawv sau npe ob hom ntawv cov ntaub ntawv delimiters?
Cov ntaub ntawv delimited yog cov ntawv nyeem siv los khaws cov ntaub ntawv, uas txhua kab sawv cev rau ib phau ntawv, tuam txhab, lossis lwm yam, thiab txhua kab muaj cov teb sib cais los ntawm tus lej
Vim li cas kem taw qhia cov ntaub ntawv khaws cia ua cov ntaub ntawv nkag ntawm disks sai dua li kab qhia cov ntaub ntawv khaws cia?
Kem oriented databases (aka columnar databases) yog qhov tsim nyog rau kev ntsuas kev ua haujlwm ntau dua vim tias cov ntaub ntawv hom ntawv (kem hom) qiv nws tus kheej kom nrawm dua cov lus nug ua - scans, aggregation thiab lwm yam. Ntawm qhov tod tes, kab oriented databases khaws ib kab (thiab tag nrho nws. kab) contiguously
Qhov kev pabcuam AWS twg koj tuaj yeem siv los tsim cov zaub mov ua zaub mov?
AWS OpsWorks Stacks siv Chef Cookbooks los ua cov haujlwm xws li txhim kho thiab teeb tsa cov pob khoom thiab xa cov apps. Tshooj lus no piav qhia txog kev siv phau ntawv ua noj nrog AWS OpsWorks Stacks. Yog xav paub ntxiv, saib Chef. AWS OpsWorks Stacks tam sim no txhawb Chef versions 12, 11.10
Dab tsi yog hom ntaub ntawv thiab piav qhia nws hom?
Hom ntaub ntawv. Ib hom ntaub ntawv yog hom ntaub ntawv. Qee cov ntaub ntawv muaj xws li cov lej, cov lej ntab, cov cim, cov hlua, thiab cov arrays. Tej zaum lawv kuj yuav yog hom tshwj xeeb, xws li hnub tim, timestamps, boolean qhov tseem ceeb, thiab varchar (tus cwj pwm txawv)