Peb npaj koj qhov kev pom! Kev ua tau zoo nrog ONMA scout android app kev txhim kho yog lav.
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Yog tias koj tsis paub meej yam lus programming siv rau kev txhim kho Android, tej zaum koj yuav xav nyeem tsab xov xwm no. Nws yuav pab koj to taub dab tsi Kotlin, Swift, Lub Hom Phiaj-C, thiab Java yog thiab siv lawv li cas los tsim ib qho app zoo. Ces, koj tuaj yeem xaiv qhov zoo tshaj plaws rau koj qhov project. Tom qab tag nrho, yog tias koj lub app muaj ntau yam nta, koj yuav xav kom paub tseeb tias nws yooj yim mus use li sai tau.
Yog tias koj tab tom tsim Android app, Tej zaum koj yuav xav xav txog kev kawm Kotlin. Cov lus programming tshiab no txhawb nqa Java Virtual Machine (JVM), ua nws qhov kev xaiv zoo tshaj plaws rau kev txhim kho Android. Txawm hais tias cov lus tshiab pom muaj koob meej, Java tseem yog qhov kev xaiv zoo tshaj plaws rau Android app kev txhim kho. Hmoov zoo, cov lus muaj ntau yam zoo dua Java. Nyeem rau kom paub tias yog vim li cas Kotlin yog qhov kev xaiv zoo dua rau Android app kev txhim kho.
Thaum tsim ib qho khoom hauv Kotlin, koj tuaj yeem tshaj tawm nws cov tswv cuab ncaj qha. Koj tuaj yeem tsim cov khoom ntawm yoov siv cov kab lus. Cov khoom no tuaj yeem nkag tau los ntawm txoj hauv kev. Thiab vim nws yog ib yam khoom, koj tsis tas yuav qhwv txhua tus hauv kab lus. Yog tias koj tab tom tsim ib daim ntawv thov complex, koj tuaj yeem muab ob peb chav kawm hauv ib chav kawm. Kotlin kuj txhawb kev ua qub txeeg qub teg.
Yog tias koj tab tom tsim chav kawm, Koj tuaj yeem siv cov ntaub ntawv teev tseg ua ntej hauv Kotlin. Cov chav kawm no muaj kev qhia tsawg dua li cov chav kawm tshwj xeeb. Ua ntej, koj yuav tsum tau txhais koj cov enums. Cais lawv nrog ib tug semicolon. Ces, koj tuaj yeem tshaj tawm txoj hauv kev uas koj xav siv. Koj tseem tuaj yeem siv qhov kev siv ua ntej rau cov khoom. Thiab thaum kawg, koj tuaj yeem siv cov cuab yeej nyeem nkaus xwb los ntawm naming nws ruaj thiab kawg.
Java yog ib hom lus siv dav dav dav dav. Tsim los ntawm Sun Microsystems thiab tam sim no muaj los ntawm Oracle, nws txhawb nqa ob qho tib si primitive thiab object-oriented cov ntaub ntawv hom. Nws cov syntax zoo ib yam li C / C ++ tab sis txawv ntawm qhov nws tsis muab cov kev ua haujlwm qis qis.. Hloov chaw, Java code yeej ib txwm sau rau hauv daim ntawv ntawm cov chav kawm lossis cov khoom. Java yog ib hom lus programming nrov heev rau kev txhim kho Android thiab tseem yooj yim kawm txawm tias cov neeg uas muaj keeb kwm kev ua haujlwm ib txwm muaj.
Thaum Java tuaj yeem siv rau kev txhim kho ntawm Android apps, muaj qee qhov tseem ceeb uas yuav tsum tau ua ua ntej pib. Android SDK thiab Android Studio yog ob lub cuab yeej uas koj yuav tsum tau pib. Cov cuab yeej no tso cai rau koj los tsim cov ntawv thov hauv Android thiab siv Java programming lus los sau lawv. Ob lub cuab yeej no yog qhov tseem ceeb rau kev txhim kho kom tiav. Muaj cov cuab yeej software raug thiab cov peev txheej kuj tseem ceeb heev rau txoj haujlwm ua tiav. Siv Java yuav pab koj pib hauv Android app txhim kho sai thiab ua tau zoo.
Lwm qhov laj thawj tseem ceeb los xaiv Java yog qhov tseeb tias nws yog platform-ywj siab. Nws yog ib qho ntawm ob peb hom lus uas tuaj yeem siv tau ntawm cov khoom siv mobile. Cov neeg tsim khoom tuaj yeem nkag mus rau cov ntaub ntawv tseem ceeb thiab cov ntaub ntawv siv Java. Nws yog qhov kev xaiv zoo rau cov neeg tsim khoom uas xav tsim cov ntawv thov rau ntau lub platform. Cov ntawv thov tshwm sim yuav ua tau zoo heev, neeg siv-phooj ywg, thiab ua haujlwm zoo heev. Yog tias koj tab tom nrhiav rau mobile app txhim kho platform, Koj yuav tsum tau saib rau tus tsim tawm uas nkag siab Java. Yog tias koj tsis ua, koj yuav muaj teeb meem coding ntawm lub platform.
Dhau li Java, Android txawm txhawb nqa ob lwm yam lus nrov tshaj plaws programming: Lub Hom Phiaj-C thiab Swift. Hom Phiaj-C yog feem ntau siv rau tsim iPhone apps, Thaum nrawm dua yog siv tau dua rau cov txheej txheem tsis yog. Txawm li cas los, Nrawm nrawm dua thiab yooj yim dua los kawm dua hom phiaj-c. Yog li, Qhov twg yog qhov zoo dua? Wb sib tham txog ob hom lus thiab yuav ua li cas los txiav txim seb qhov twg yog qhov zoo tshaj rau koj qhov project. Raws li rau Swift, Nws yooj yim dua kawm, Thaum lub hom phiaj-C muaj zog dua.
Java yog cov lus ntawm kev xaiv rau Android app txoj kev txhim kho kom txog thaum 2008, Thaum lub Android platform tau tsim. Nws tau tsim los ntawm lub hnub microsystems, uas yog tam sim no muaj los ntawm Oracle. Nws yog cov lus muaj zog uas tau nrov ntawm cov neeg tsim khoom. Txawm li cas los, Java-raws apps yog cov ntau dua thiab nyuaj rau kev tswj hwm tshaj li lawv cov counterparts sau ua lwm yam lus. Raws li qhov tshwm sim, Java cov neeg tsim khoom yuav xav txiav txim siab siv hom phiaj-c rau Android app kev loj hlob.
Raws li qhov tshwm sim, Cov lus zoo li yog lus qhia thiab nyuaj rau debug. Tsis tas li ntawd, Txoj kev kawm nkhaus rau Java yog ntxhab. Qhov no yog vim li cas ntau tus neeg tsim tawm tau tsiv mus nrawm, ib qho khoom siv qhib-los uas sau ntawm Java Virtual tshuab. Swift yog cov lus siv dav dav tshaj plaws ntawm iOS no, Tab sis nws tseem tau tshaj nrog kev txhim kho Android. Qhov tseeb, Lub LLVM compiler uas nrawm txhawb yog qhov tseeb ntxiv thaum nws los txog rau kev loj hlob hauv.
Yog tias koj tab tom txiav txim siab tsim Android app, Koj yuav tsum xav txog kev siv nrawm li cov lus programming. Nws cov lus txhais tau zoo li C / C ++, yog li koj tuaj yeem siv nws los txhim kho koj lub app yam tsis muaj teeb meem. Nws tseem txhawb Autolayout, ib qho tshwj xeeb uas ua rau txhim kho UIS yooj yim dua rau ob qho tib si. Ntxiv mus, Nws txhawb nqa peb-tog moj khaum, xws li C ++, Sqlite, thiab cryptoswift. Cov lus tshiab no qhib kev lag luam nkaus tshiab rau cov neeg tsim khoom thiab tso cai rau iOS tsim tawm kom nkag mus rau hauv khw Android.
Ua ntej lub caij skift nrawm, iOS apps tau sau rau hauv hom phiaj-c, uas yog ib hom lus prementary. Txawm li, Cov lus programming no tau ua pov thawj nws tus kheej yog qhov muaj txiaj ntsig zoo thiab muaj kev nyab xeeb cov lus programming. Vim tias nws lub zog, ruaj khov, thiab streamlined syntax, Nws tau dhau los ua cov lus ntawm kev xaiv rau kev tsim Android apps. Ntxiv rau qhov ua kom qhib-qhov chaw, Swift kuj tseem tau txais lub zog ntawm cov neeg tsim khoom thiab software cov engineers. Nov yog xov xwm zoo rau txhua tus tsim tawm tab tom nrhiav los tsim cov apps zoo thiab ua kom koj cov neeg siv txaus siab.
Kev kawm rau qhov program hauv Swift rau Android yuav ua rau koj muaj feem ua tiav nrog koj lub app. Txawm tias tus nqi siab dua, haiv neeg programming tseem yog huab tais ntawm kev txhim kho app. Thaum nws xav tau kev paub ntau ntxiv thiab kev txawj ntse, nws yog qhov nrov ntawm cov neeg paub txog programmers uas xav tsim kom muaj lub app customized heev. Tsis tas li ntawd, koj yuav muaj kev ywj pheej los kho koj lub app, nrog rau qhov tshwj xeeb interface, duab, thiab suab. Nws tuaj yeem nyuaj rau kawm cov lus programming tshiab, tab sis nws zoo tsim nyog rau kev nqis peev.
Thaum coding rau koj mobile app, refactoring yog ib kauj ruam tseem ceeb los xyuas kom meej tias koj cov cai tswj tau zoo thiab nyeem tau. Feem ntau, refactoring yog ua ib feem ntawm kev hloov kho software, tab sis qee zaum, nws tuaj yeem ua tau cais. Txoj kev no, koj tuaj yeem txuag lub sijhawm thiab nyiaj txiag hauv lub sijhawm ntev los ntawm kev zam kom tsis txhob muaj qhov tsis tsim nyog thiab rov ua dua. Txawm tias cov neeg siv kawg yuav tsis pom qhov no, cov neeg tsim khoom tuaj yeem txuag nyiaj los ntawm kev zam cov nuj nqis yav tom ntej.
Refactoring koj app yog ib txoj hauv kev zoo los txhim kho cov lej zoo ntawm koj daim ntawv thov thaum txiav cov nyiaj ua haujlwm coding.. Los ntawm restructuring koj cov cai uas twb muaj lawm, koj tuaj yeem txhim kho nws kev nyeem ntawv, portability, thiab kev ua tau zoo yam tsis muaj kev cuam tshuam lub app lub hom phiaj ua haujlwm. Refactoring kuj ua rau cov cai tswj tau yooj yim dua. Cov app modules koj tsim tuaj yeem rov siv dua hauv lwm daim ntawv thov, yog li nthuav lawv lub peev xwm. Muaj qee qhov kev txiav txim siab tseem ceeb thaum refactoring ib daim ntawv thov.
Kev siv Android Studio yog qhov yooj yim thiab yooj yim. Tsuas yog txoj cai-nias ntawm tus lej thaiv thiab xaiv cov khoom Refactor los ntawm cov ntawv qhia zaub mov. Lub qhov rais popup no muaj ntau yam kev xaiv refactoring. Qhov tseem ceeb tshaj plaws yog Rename…, uas koj tuaj yeem pom hauv cov ntawv qhia zaub mov. Los ntawm kev siv qhov kev xaiv no, koj tuaj yeem hloov lub npe ntawm cov hloov pauv sai lossis hloov cov qauv ntawm tag nrho cov module. Ces, koj tuaj yeem xaiv lub npe tshiab rau lub cim thaiv.
Native Apps yog cov apps tsim rau cov kev khiav hauj lwm mobile tshwj xeeb, xws li iOS thiab Android. Cov apps tuaj yeem siv tau los ntawm cov khw muag khoom tshwj xeeb. Cov cuab yeej thiab cov platforms siv los tsim cov apps no tshwj xeeb rau lub platform, xws li Objective-C, Swift, Java, Kotlin, thiab ntau dua. Hom kev txhim kho no suav nrog cov txheej txheem tshwj xeeb, thiab tuaj yeem ua haujlwm tau nyiaj ntau. Thaum feem ntau developers tshwj xeeb nyob rau hauv ib tug code puag, lawv tuaj yeem tsim ob qho tib si iOS thiab Android apps.
Ib qho piv txwv ntawm ib qho Ar Mobile app yog cov nrov kev ua si pokemon mus. Daim ntawv thov no siv cov chaw tiag tiag los tig ib puag ncig mus rau hauv lub ntiaj teb kev ua si virtual. Tus neeg uas ua ntawv yog qhov tseem ceeb ntawm tus maub los. Cov app muaj nyob rau hauv Google Play Store thiab Apple App Store. Cov Num Apps muaj kev ruaj ntseg ntau dua Web Apps Vim tias lawv siv cov haujlwm ua haujlwm ua kom koj lub app du thiab yooj yim.
Thaum Twg Los Txiav Txim Rau Kev Loj Hlob, Cov tuam txhab yuav tsum ntsuas lawv cov kev xaiv. Seb puas yuav siv cov app uas twb muaj lawm lossis tsim ib qho kev cai ib, Muaj ntau ntau yam uas yuav tsum tau coj mus rau hauv tus account. Qhov thib ib yog qhov nyuaj ntawm lub. Haiv neeg tuaj yeem ua rau muaj, tab sis tuaj yeem nyuaj tsim. Muaj ntau cov pitfalls thiab nuances kom xav txog. Tus tsim tawm zoo tuaj yeem pab txhim kho cov txheej txheem thiab txo cov nqi. Tab sis nws yog ib qho tseem ceeb kom paub tseeb tias koj tau txiav txim siab zoo rau koj txoj kev lag luam.
Qhov tseeb version ntawm Android, tus 13 beta, coj kev txhim kho rau SDK thiab sandbox rau Android app kev txhim kho. Lub sandbox cais cov tsev qiv ntawv thib peb los ntawm app tus lej, muab cov neeg tsim khoom tswj hwm ntau dua ntawm cov tsev qiv ntawv. SDKs tau txais kev hu los ntawm cov lej hauv cov txheej txheem app. Cov cai sib txuas lus nrog SDK's interfaces, uas hla txoj kev ciam teb. Android 13 kuj qhia txog Privacy Sandbox, feature ntawm Android platform uas sib npaug rau Apple's App Tracking Transparency.
Lub sandbox tso cai rau cov neeg tsim khoom cais cov ntaub ntawv tus kheej. Ib lub teeb nyem app, piv txwv, tuaj yeem thov kev tso cai tsis tsim nyog thiab ua haujlwm. Los ntawm kev siv Shelter sandbox, flashlight apps tsuas tuaj yeem nkag mus rau cov ntaub ntawv ntawm lwm cov apps hauv sandbox. Txawm li cas los, cloned apps tsis tuaj yeem tswj hwm kev tso cai thiab yuav tsis ua haujlwm zoo rau cov neeg siv uas saib xyuas lawv tus kheej. Kom zam qhov no, cov neeg siv tuaj yeem cais cov apps ntseeg tau los ntawm lwm cov apps uas khiav hauv sandbox.
Kev siv sandbox rau Android app txhim kho tiv thaiv tus neeg siv tus kheej. Android apps khiav hauv cov txheej txheem sib cais, tiv thaiv lawv los ntawm kev nkag mus rau cov ntaub ntawv rhiab. Qhov no tiv thaiv tus neeg siv los ntawm malware thiab software phem. Thaum lub iOS operating system tsis siv lub sij hawm “sandbox” rau sandbox, cov txheej txheem zoo ib yam. Qhov sib txawv tsuas yog tias Apple tsis siv sandbox rau Android app txhim kho cov ntsiab lus.