Mokhoa oa ho etsa mananeo a Android

Haeba u batla ho tseba ho hlophisa lisebelisoa tsa Android, ho na le lintho tse 'maloa tseo u lokelang ho li tseba. Haeba u le mocha ka ho feletseng tšimong ena, ho bohlokoa ho nka metsotso e seng mekae ho bala lintlha tsa motheo pele. Bala ho Java, Maikemisetso, ShareActionProvider, le XML-Parsing Methode.

Java

Ho hlophisa sesebelisoa sa Android ha ho hlokahale hore ho be thata – ho na le lisebelisoa tse 'maloa tse tla u thusa ho theha sesebelisoa kapele le ha bonolo. Ea pele, o hloka ho khoasolla software e loketseng ea ho khouta. E 'ngoe, kenya Java le tikoloho ea ntlafatso ea app, joalo ka Android Studio. Sena se tla u lumella hore u thehe app ka nako. U tla boela u batle ho hlalosa sebopeho le sebopeho sa app. Ka mor'a sena, o ka khetha sebopeho sa sebopeho.

U ka boela ua khetha lisebelisoa tsa ntlafatso ea lisebelisoa tsa Android. Li-kits tsena li loketse bahlahisi ba qalang 'me li tla le mefuta e fapaneng ea lithupelo le lisebelisoa tsa litšupiso. Hang ha u se u khoasitse SDK, o ka qala ho rala le ho hlophisa sesebelisoa sa hau sa pele sa Android. Android SDK ke ntho e hlokahalang bakeng sa ba qalang, mme ho na le lisebelisoa tse ngata tsa mahala tsa inthanete tse fumanehang, ho kenyelletsa le mefuta e mengata ea lithupelo, mongolo, le mehlala ea video. Haeba u se u le ncha ho programming, o ka ikopanya le Seboka sa CHIP, moo o ka botsang lipotso le ho fapanyetsana malebela le baetsi ba mananeo ba nang le boiphihlelo.

Android Online Kurs e fana ka kenyelletso e tebileng ho nts'etsopele ea lisebelisoa tsa Android, e koahelang lintlha tsohle tse hlokahalang ho theha app ea setsebi. Mongodi o o tsamaisa tshebetsong ya ntshetsopele kgato ka kgato, mme e hlalosa lintlha tsa bohlokoahali tsa ho khouta app ea profeshenale ea Android. Mongolo o boetse o u ruta mokhoa oa ho sebelisa Android Studio le lisebelisoa tse ling tse ngata. U tla boela u ithute ho hlophisa lits'ebetso ka li-skrini tse ngata, ditshebetso tsa bokamorao, le tse ling tse ngata.

Maikemisetso

Haeba u batla ho hlophisa lisebelisoa tsa hau tsa Android ho arabela morerong, o ka sebelisa moralo oa Android's intent programmierung. Maikemisetso a ka sebelisoa ho qala liketso le ho romella tlhahisoleseling ho seva. Moralo oa Android intent programmierung o fana ka mekhoa e mengata ea ho etsa sena. E 'ngoe ea litsela tsena ke ho sebelisa Google Maps.

Maikemisetso ke motheo oa lits'ebetso tse ngata tsa Android. Li lumella lisebelisoa tsa hau ho hokahana le lits'ebetso tse ling, dikarolo, le lisebelisoa. Li ka boela tsa sebelisoa ho tsamaea ka har'a sesebelisoa, joalo ka ha mosebelisi a fumana sehokelo sa tefo ho SMS ea bona. This feature makes it possible to pass information from one app to another, even from the same application.

Intents allow your Android apps to send data to other apps, joalo ka lifaele. You can also request that your apps open a file from another app. Ho etsa sena, you must specify the MIME type and URI location. Ntle le moo, you can request to create a new document. As long as the file is managed by another app, your Android apps can send data to that location. The data is sent to the server using a URI.

Intents are used in Android apps to perform various tasks in the background. They are useful when you want to start a one-time task and don’t need user interaction. Intents can be passed to the startService() method of your app. Intents can also be used to send messages to other apps. Ka mohlala, Sepheo se ka sebelisoa ho bolella app e 'ngoe hore faele e qetile ho khoasolla 'me e se e loketse ho sebelisoa. Maikemisetso a ka boela a sebelisoa ka kopanelo, ka thuso ea Broadcast Receivers.

ShareActionProvider

Haeba u batla ho arolelana litaba lipakeng tsa lisebelisoa tsa hau tsa Android, O ka sebelisa karolo ea sekolo. E sebetsa ka ho bonts'a lethathamo la lisebelisoa tse arolelanoang skrineng. Ha mosebedisi a tobetsa letshwao la app, ShareActionProvider e tla kengoa tšebetsong.

Ena ke widget e bonolo empa e le matla e hlokomelang boitšoaro le ponahalo bakeng sa hau. Seo u hlokang ho se etsa feela ke ho totobatsa sehlooho sa shebiloeng ea kabelo. ShareActionProvider e tla boloka boemo ba lipehelo tsa kabelo mme e tla bonts'a sepheo se tsebahalang haholo sa ho arolelana bareng ea app..

Sesebelisoa sena se ntle bakeng sa ba qalang ho hlophisa lisebelisoa tsa Android. Ka sesebelisoa sena, you can connect your Android app to a REST oriented webservice. This is especially useful when displaying data. Mobile apps generate high value when they display data. Leha ho le joalo, the data is not stored on the device itself – ho e-na le hoo, it is downloaded from different webservices during the app’s runtime.

You need to have Java knowledge if you want to create Android applications. You can download Android Studio, an open-source development environment by Google. There are many texts and videos online to help you get started. You can also join the CHIP forum to exchange ideas with other developers.

XML-Parsing Mokhoa

XML-Parsing is an important part of Android apps programming. This is a common task because many websites and blogging platforms use the XML format for sharing information. Lisebelisoa tsa Android li hloka ho tseba ho sebelisa data ena ts'ebelisong ea tsona, 'me mokhoa ona oa sebetsa. E nka data ho tsoa faeleng ea mongolo ebe e e sebetsa ka mokhoa o shebaneng le ntho. Ho na le mefuta e meraro ea li-parser tsa XML ho Android. E sebelisoang haholo ke XMLPullParser. E bonolo ho e sebelisa ebile e sebetsa hantle.

Sesebelisoa sa mohlala se hlakisa li-tag tse fumanehang joalo ka sehlooho, sehokelo, le kakaretso. E boetse e na le mokhoa o bitsoang skip(). Mokhoa ona o ntša sehlooho, sehokelo, le kakaretso ea tokomane ea XML. E ntan'o sebetsana le phepelo ka ho pheta-pheta ebe e khutlisa Lethathamo la likenyo. Ha phoso e etsahala nakong ea ho arola, app e tla lahla mokhelo.

Mohato oa pele oa ho ithuta ho sebelisa XML-Parsing Methode ho Android apps programming ke ho theha tikoloho ea hau. Android Studio ea hlokahala bakeng sa ho tsamaisa khoutu ea mohlala. You don’t need to use the latest version of the Android SDK API. Basic XML and JSON parsing has been available since the early days of Android.

XML-Daten

You’ve probably heard of XML-Daten, and you may want to learn how to program with them to make your Android applications even more interesting. XML is a markup language that is commonly used for data exchange between computers and applications, such as in websites. Your Android application will be able to read and write these data in the form of an XML-string, which must be parsed in order to be interpreted.

XML-Daten ke motheo oa mananeo a thehiloeng ho XML, 'me li sebelisetsoa merero e fapaneng e fapaneng. Puo e na le mokhoa o fokolang oa ho ithuta 'me e bonolo ho e sebelisa bakeng sa mefuta e mengata ea lisebelisoa. Hape ke mokhoa o batlang o le bonolo ho o utloisisa, mme o ka fumana mehlala e mengata inthaneteng. U ka khoasolla lifaele tsa XML 'me ua li bula ka har'a mohlophisi oa mongolo oa Android.

U ka bala XML-Daten bakeng sa lisebelisoa tsa Android ka ho hlalosa lebitso la sephutheloana sa sesebelisoa sa hau le leqephe la ho qala. U ka boela ua hlalosa mesebetsi le likarolo tse fapaneng tsa app ea hau.

Native Apps vs Lits'ebetso tsa Marang-rang tse Tsoelang Pele

Ho na le melemo e mengata ea ho theha PWA sebakeng sa sesebelisoa sa lehae sa Android. Taba e le 'ngoe, Li-PWA li ka ba theko e tlase haholo ho feta lits'ebetso tsa matsoalloa. Hape, Li-PWA li ka arabela ho lisebelisoa tsohle. While native apps must be customized to fit different screen sizes, PWAs are designed to work on any device.

While native applications are more expensive to develop, progressive web apps are much faster. These applications use HTML, CSS, and JavaScript to create an application. Leha ho le joalo, they offer limited functionality, such as the inability to access calendars, contacts, browser bookmarks, and Bluetooth.

Despite these drawbacks, progressive web apps can take advantage of device features. Ho fapana le lisebelisoa tsa tlhaho, progressive web apps can access all device features, including the camera, compass, and contact list. These factors can help you decide which one to use and whether it’s worth your time to invest in development.

Progressive web apps can send and receive push notifications and perform offline. Holim'a moo, they can be built on any operating system. These web apps are ideal for delivering content to a mobile user.

Creating an Android Studio project

To create an Android app, you can use Android Studio. You can use pre-designed templates to get started. Joale, o ka khetha mofuta oa sesebelisoa seo u lakatsang ho se lebisa. U ka khetha bonyane SDK e hlokehang ho aha sesebelisoa sa hau. U tla hloka ho kenya lifaele tse ling morerong.

Merero ea Android e na le lifoldara le lifaele tse fapaneng bakeng sa merero e fapaneng. Ntle le ho ba le khoutu ea mohloli oa kopo ea hau, li boetse li na le lilaebrari. Foldara ea libs e na le lifaele tse ling tsa nkho tse hlokoang ke nako ea ts'ebeliso. Sephutheli sa thepa se na le matlotlo a ka khaohang le lifaele tse tsitsitseng. Qetellong, gen/ foldara e na le khoutu ea mohloli e hlahisoang ke lisebelisoa tsa kaho tsa Android.

O ka theha sesebelisoa sa Android o sebelisa Java le XML. Ho phaella ho sena, u ka boela ua sebelisa PHP le SQL ho theha backend le ho laola database. Ho ntlafatsa app ea hau, o tla hloka Android Studio. Hang ha u se u entse sena, u ka sebelisa Java, XML, kapa JSON ho rala pheletso ea kopo ea hau.

Foldara ea src e na le lifaele tsa Java. Foldara ea lib e na le lifaele tse ling tsa nkho tse sebelisoang ke Android. Sephutheli sa res se na le lisebelisoa tsa kantle bakeng sa ts'ebeliso ea hau, joalo ka litšoantšo, sebopeho sa lifaele tsa XML, le lifaele tsa audio. Ho feta moo, foldareng ea mipmmap ke moo o tla beha letšoao la sesebelisoa sa hau. Ka ho tšoanang, o lokela ho beha matlotlo a mang a ka huloang lifoldareng tsa bona.