Peb npaj koj qhov kev pom! Kev ua tau zoo nrog ONMA scout android app kev txhim kho yog lav.
Hu rau
Los tsim ib qho kev thov Android, Cov neeg tsim tawm siv cov hauv SDK thiab Java programming lus. Nrog SDK, lawv tuaj yeem tsim ib qho app nkaus xwb app binary thiab tshaj tawm UI qhov chaw uas siv lub teeb yuag ntawm XML cov peev txheej. Lawv tuaj yeem siv Universal Ui moj khaum lossis tsim kho cov nta tshwj xeeb rau cov ntsiav tshuaj lossis cov smartphones.
Gradle yog ib qho chaw ua haujlwm rau Android app. Nws tso cai ntau cov qauv ntawm daim ntawv thov yuav tsum tau ua los ntawm ib qhov project. Hauv cov khoom siv hauv cov vijtsam ntau thiab tsawg thiab cov hom processor, ua rau nws tsim nyog los tsim ntau hom ntawm ib qho app. Siv Gradle, Koj tuaj yeem tsom ntau hom khoom siv ntau yam.
Gradle muaj ob hom kev tsim hom, Debug thiab Tso Tawm. Lub Chaw Debug tsim hom koomhaum Debugging xaiv thiab qhia cov app nrog tus yuam sij debug. Qhov kev tso tawm tsim hom tuaj yeem txo qis thiab cuam tshuam lub app, zoo li kos npe nrog tus yuam sij tso tawm. Thaum siv Gradle, Nws yog ib qho tseem ceeb uas yuav tau siv hom tsim kom raug.
Gradle yog ib qho cuab yeej tsim automation uas tso cai rau cov neeg tsim khoom tsim cov apk los ntawm Java lossis XML cov ntaub ntawv. Nws tuaj yeem ua tau ntau yam haujlwm, suav nrog kev sau cov lej, txuas nws, thiab ntim nws. Siv cov cuab yeej tsim automation, cov txheej txheem yog txhim khu kev qha thiab zoo ib yam.
Gradle tso cai rau koj rov siv cov peev txheej thiab cov ntaub ntawv. Nws kuj tseem ua rau nws tuaj yeem sib koom ua ke ntawm cov qauv tsim sib txawv hauv tib qhov tseem ceeb. Qhov no yuav pab koj rov qab siv cov peev txheej thiab kev ua ub no thoob plaws ntau yam ntawm koj lub app. Nrog Gradle, koj tseem tuaj yeem tsim qhov kev cai Gradle Template los kho qhov tsim.
Gradle yog lub cuab yeej tsim muaj zog automation rau Android app kev txhim kho. Nws muab cov kev ua tau zoo ntawm lwm cov tshuab tsim thiab txhim kho lawv qhov tsis txaus. Nws tso cai rau cov neeg tsim khoom sau Java scripts thiab Android tshwj xeeb nta, thiab nws kuj tso cai rau lawv tsim ntau yam ntawm lawv cov apps. Ntxiv thiab, Gradle yooj yim siv thiab hloov tau yooj yim dua Maven thiab Ant.
Kev txhim kho Android app tuaj yeem yog txheej txheem nyuaj. Pib nrog, nws yog qhov zoo tshaj los teem lub hom phiaj tiag tiag. Raws li koj kawm cov hauv paus, koj yuav xav ntxiv nta thiab sim nrog cov tswv yim tshiab. Kev muaj lub hom phiaj pab ua kom cov txheej txheem kev kawm tsim thiab lom zem. Thaum koj muaj lub tswv yim ntawm qhov koj xav tsim, koj tuaj yeem pib tsim koj thawj Android app.
Ib qho txiaj ntsig tseem ceeb ntawm kev siv Java rau Android app kev txhim kho yog cov lus pub dawb thiab suav nrog lub tsev qiv ntawv loj ntawm cov tsev qiv ntawv qhib.. Qhov no yuav pab koj cov neeg tsim khoom txo qis lub sijhawm txhim kho thiab txo kev pheej hmoo kev nyab xeeb. Kuj, Java tau txais kev txhawb nqa los ntawm lub zej zog loj. Txawm tias qhov no, Java rau Android app txhim kho muaj qee qhov kev txwv. Tsis zoo li lwm yam lus programming, Java tsis tuaj yeem khaws cov neeg siv cov ntaub ntawv, uas tuaj yeem ua rau cov ntaub ntawv poob.
Txawm hais tias Java tsis yog platform-yooj yim, nws tau dhau los ua neeg nyiam ntawm cov neeg tsim khoom. Nws tau nthuav dav rau mobile platforms, thiab Java Mobile Edition tau tsim tshwj xeeb rau cov khoom siv txawb. Java cov kev pab cuam tau muab tso ua ke rau hauv bytecode thiab ua tiav hauv cov ntsiab lus ntawm Java Virtual Machine. Qhov no ua kom muaj kev ruaj ntseg. Cov ntawv thov Java yog tsim los ua kom ntseeg tau thiab muaj kev pheej hmoo tsawg.
Java yog hom lus hnyav uas yuav tsum tau sau cov lej ntau dua thiab nco ntau dua. Raws li qhov tshwm sim, Java daim ntawv thov tuaj yeem ua haujlwm qeeb. Kotlin, Java lwm txoj, tau tsim nyob rau hauv 2011 los ntawm JetBrains developers los txhim kho raws li Java. Nws txhawb kev sib luag-khiav nrog Java thiab ua kom suav nrog JavaScript yooj yim dua. Lub hom phiaj ntawm Kotlin zoo ib yam li Swift thiab tuaj yeem pab tau rau Java developers.
XML rau Android app kev txhim kho yog ib hom lus sib sib zog nqus uas siv rau UI cov ntaub ntawv ntsig txog. Nws syntax yog yooj yim thiab tso cai rau kom yooj yim scalability. Ntxiv nrog rau qhov hnyav, XML kuj yooj yim sau. Koj tuaj yeem siv nws hauv koj txoj kev txhim kho app los sau cov ntawv qhia zaub mov, layout, los yog ib lub vev xaib.
XML yog hom lus cim uas muab cov ntsiab lus rau cov ntaub ntawv thiab ua rau kev tshawb nrhiav cov khoom tshwj xeeb yooj yim dua. Nws kuj tseem yog qhov qhib thiab siv tau nrog txhua yam lus programming thiab daim ntawv thov, muab cov neeg tsim khoom muaj kev sib tw. XML tuaj yeem siv rau ntau lub hom phiaj hauv Android apps, suav nrog kev hloov cov ntaub ntawv, formatting cov ntaub ntawv, thiab tsim layouts.
Ntxiv nrog rau kev ntxiv cov ntsiab lus rau cov ntaub ntawv, XML kuj ua rau kev sib pauv ntaub ntawv yooj yim dua. Nws yog raws li Standard Generalized Markup Language, uas tau siv nyob rau hauv kev lag luam luam tawm ntau xyoo lawm. XML rau Android app kev txhim kho tuaj yeem siv tib lub luag haujlwm yam tsis muaj teeb meem tshwm sim. Nws muaj txiaj ntsig zoo rau cov ntaub ntawv tsis muaj teeb meem tshwm sim.
Thaum tsim ib qho app hauv Android, koj yuav xav tau ob lub computer. Ib qho yog lub khoos phis tawj txhim kho, qhov twg koj yuav sau tus lej Android, Thaum lwm tus yog lub cuab yeej koj yuav txhim kho lub app rau. Lub computer txhim kho yog lub desktop lossis laptop computer, Tab sis koj tseem tuaj yeem siv Mac lossis Linux lub computer yog tias koj nyiam platform. Lub cuab yeej Android tsis suav hais tias yog khoos phis tawj, Tab sis nws tuaj yeem yog tus smartphone, phau ntawv, lossis SmartWatch.
Hauv Android Studio app ua rau koj los tsim cov haiv neeg Android apps nrog tib puag ncig iOS no yog cov khoom lag luam iOS no. Nws txhawb ntau hom lus programming, Thiab koj tuaj yeem siv nws los tsim cov apps rau ib qho khoom siv Android. Qhov kev zov me nyuam muaj cov feat-nplua nuj emulator rau kev kuaj cov ntawv thov. Nws tseem tuaj yeem ua raws lub cev Android smartphone thiab muab ib qho chaw sib koom ua ke rau tag nrho koj cov kev txhim kho Android app Android app. Nws cov nta tseem ceeb suav nrog kev sib xyaw nrog git, ib tug feature-nplua nuj editor, thiab qauv code ntshuam thiab export xaiv.
Lub Android Studio interface yog tsim los ua haujlwm nrog koj qhov project yooj yim thiab ua haujlwm tau zoo. Nws los nrog tabs nyob rau sab laug thiab sab xis uas tso cai rau koj qhib cov panes sib txawv. Kuj tseem muaj qhov xwm txheej bar nyob hauv qab ntawm lub qhov rais uas qhia txog xwm txheej ntawm koj qhov project, ceeb toom, thiab txhim kho kev vam meej. Lub qhov rais tseem ceeb kuj muaj thaj chaw coding, uas tso cai rau koj qhib thiab kho ntau cov ntaub ntawv ib zaug. Koj tuaj yeem siv cov keyboard shortcuts sai sai rau koj qhov project.
Android Studio kuj tuaj nrog lub built-in IDE hu ua IntelliJ. Cov editor no tso cai rau koj los tsim cov cai rov siv tau, ntxiv XML los ntawm templates, thiab tsim UI Cheebtsam. Koj tuaj yeem kho tus neeg siv interface los ntawm kev ntxiv cov ntsiab lus thiab cov cim.
Tsim tus neeg siv interface rau ib qho Android app yog qhov tseem ceeb ntawm cov txheej txheem txhim kho kev txhim kho. Thaum tsim cov neeg siv interface, Cov neeg tsim khoom yuav tsum khaws lawv cov neeg tuaj saib lub hom phiaj hauv siab. Thaum ua haujlwm thiab kev tsim kho tshiab yog qhov tseem ceeb, Nws yog qhov yooj yim ntawm cov qauv tsim uas cov neeg siv khoom noj. Tus neeg siv interface ntawm ib qho app feem ntau yog ib qho ntawm kev txiav txim siab rau seb ib puas tau pom zoo ntawm cov khw muag khoom ua si lossis tsis yog.
Muaj ob peb txoj kev sib txawv los tsim cov qauv siv Android app tus neeg siv interface. Ua ntej tshaj plaws, Koj yuav tsum xav txog qhov loj me ntawm lub vijtsam. Ntau cov ntxaij vab tshaus sib txawv heev, ua rau nws tseem ceeb heev los siv cov kev daws teeb meem thaum txhim kho Android app. Ib txoj hauv kev zoo tshaj plaws los ua ib qho zoo tshaj plaws yog siv cov txheej txheem graphical los tsim cov UI. Txoj kev no tso cai rau koj los hloov pauv rau cov neeg siv interface cov ntxaij vab tshaus yam tsis tas yuav rov ua dua tag nrho daim ntawv thov.
Lub Android UI muaj ob qhov tseem ceeb: daim ntawv thov cov ntsiab lus cheeb tsam thiab qhov ua haujlwm bar. Cov haujlwm yog lub plawv ntawm daim ntawv thov Android, thiab txhua yam haujlwm cuam tshuam nrog tus neeg siv txhawm rau ua tiav lub hom phiaj tshwj xeeb. Lub UI tau txhais hauv cov ntaub ntawv XML, uas tau muab txhais ua Android GUI chav kawm. Cov chav kawm no muaj cov ntsiab lus UI thiab lawv cov cwj pwm.
Yog hais tias koj xav tsim ib tug database app rau koj Android app, Koj tuaj yeem ua tau li ntawd los ntawm kev siv tus tsim app xws li Appy Pie. No app builder yog ntseeg los ntawm 7 lab lag luam thoob ntiaj teb, thiab nws muaj qhov yooj yim luag-thiab-poob interface uas tso cai rau koj kom haum cov qauv tsim ntawm lub app thiab xaiv los ntawm ntau yam ntawm nta. Lub Apps app app no tseem yuav ua rau koj tswj cov ntaub ntawv ntawm lub app nws tus kheej. Thaum koj ua tiav lub tsev lub app, koj tuaj yeem luam tawm nws rau lub khw muag khoom app.
Cov apps database tuaj yeem pab cov lag luam npaj thiab tswj hwm lawv cov ntaub ntawv thiab cov khoom lag luam. Vim tias lawv tsis yog coding, lawv tuaj yeem siv los ntawm ib qho lag luam thiab tuaj yeem tsim kho sai dua li qhov koj xav. Koj tuaj yeem tsim koj cov ntaub ntawv siv hluav taws xob siv cov ntawv xa tawm! Lub ntsiab kom zoo ntawm cov ntaub ntawv app yog tias nws ua rau nws tswj tau yooj yim tswj koj cov ntaub ntawv ua lag luam, Taug qab cov lus nug, thiab qhia rau lwm tus.
Lwm qhov zoo dua ntawm kev siv lub database rau koj hauv app yog tias nws ua rau nws yooj yim dua rau koj app teev. SQLite yog qhov feem ntau siv kev hloov chaw nyob hauv lub cav, thiab muaj haiv neeg txhawb nqa ntawm Android. Nrog txoj kev kawm tsawg, SQLite muaj kev ua tau zoo, thiab txhawb nqa cov haujlwm thiab kev hloov pauv. Txawm li cas los, Muaj qee qhov tsis zoo siv SQLite.
Ib qho chaw khaws ntaub ntawv yog cov ntaub ntawv khaws cia uas khaws cia rau hauv PCs. Cov ntaub ntawv tswj hwm database ua haujlwm cov ntaub ntawv hauv cov kab thiab txhua, Ua cov ntaub ntawv ua tau yooj yim. Nws tseem yog ib hom lus uas siv los ntawm cov tsim tawm los tsim cov ntaub ntawv database. Cov lus no hu ua SQL thiab hnub rov qab mus rau xyoo 1970.