Mokhoa oa ho etsa mananeo a Android

Haeba u batla ho tseba haholoanyane ka mananeo a Android, Buka ena e tla u thusa haholo ho uena. E tla u tsebisa lihloohong tsa bohlokoahali tseo u lokelang ho li tseba ha u aha sesebelisoa se shebahalang se hlophisehe sa android. Ho tloha polokelong ea data ho ea ts'ebetso ea data, ditshebetso tsa bokamorao, le lits'ebeletso tsa inthanete, Buka ena e tla u bonts'a tsohle tseo o hlokang ho li tseba ho theha app e shebahalang e le ea bohlokoa. Buka ena e tla u thusa ho ithuta ho sebelisa studio sa hau sa Android ho ntlafatsa sesebelisoa sa hau.

Lenaneo le nang le sepheo

U sebelisa Java ho aha lisebelisoa tsa hau tsa Android ha ho thata, Ha e ntse e latela boiphihlelo le tebello ea li-yumers tsa OO. Buka ena e ngotsoeng e koahela motheo oa nts'etsopele ea Android, ho kenyelletsa li-apps tse bontšang, Mekhoa ea Ts'ebetso, Ho etsa lintho, TLHOKOMELISO, le liphapang tsa sqlite. Le uena u tla ithuta ka melaetsa ea Android, XML E ntse e sebetsa, JSON, le ho hlakola. O tla fumana kutloisiso e ntle ea mahlale a ntseng a hlaha, ho kenyelletsa le sdk ea Android.

Lipuo tse peli tse atileng haholo tsa nts'etsopele ea app ea Android ke Java le Kotlin. Java ke puo ea khale ka ho fetisisa bakeng sa ho theha li-apps, Empa bahlahisi ba bangata ba fetohela kotlin bakeng sa cyncise cyntax le boiketlo ba ho ithuta. Java, Ha e ntse e le puo e tummeng ka ho fetisisa bakeng sa ho haha ​​li-apps tsa 'muso tsa Android, e ntse e boloka ho tsebahala ha eona bakeng sa lilaebrari tsa eona tse ngata le bophahamo ba eona. Kotlin, ka hlakoreng le leng, e entsoe ke li-Jetwains, Khampani e le 'ngoe e bōpileng Java.

Lenaneo la lintho tse rometsoeng ke ntho ea ho hlophisa data ka mokhoa o hlakileng. Ntho e 'ngoe le e' ngoe e na le data ea eona le boitšoaro ba eona, mme kaofela ba hlalositsoe ke litlelase. Mohlala, Sehlopha sa baslengccount se ne se ka ba le data le mekhoa ea ho boloka liakoto. Lintho tsena li ka boela tsa ba le mekhoa e kang ho nyenyefatsa() le gaccountwer(). Mekhoa ena e bohlokoa bakeng sa ts'ebetso e ntle ea ts'ebeliso e bonolo.

Java e ne e le puo ea pele e neng e sebelisetsoa ho haha ​​lits'ebetso tsa Android. Empa joalo ka Kotlin e tsebahala lefatšeng la Android, Likhamphani tse ngata tse kholo tsa Tech li phetlela puo ena bakeng sa merero ea tsona. Twitter, Netflix, le trello, kaofela li hahiloe ka kotlin. Empa mochini o bulehileng oa letsoho o sebelisitsoeng o sebelisitse Java bakeng sa sebopeho sa mosebelisi oa Android OS. Le hoja Java e ka kopantsoe ka har'a bytecode le ho matha JVM, Ha e na lisebelisoa tse tšoanang tse tšoanang le tse tlase joalo ka C ++.

ShareActionProvider

Ho ntlafatsa tšebelisano le likarolo tsa menyu ea lisebelisoa tsa Android, O ka sebelisa karolo ea sekolo. Laeborari ena e theha konopo e matla ea matla ebile e etsa liketso tse tloaelehileng. It declares itself in the XML menu resource file. By adding this library to your app, you can share data with your users, including stock prices. Ho fumana lintlha tse ling, visit the official website. Here are some of the most commonly used ShareActionProvider classes:

The ShareActionProvider class uses the ACTION_SEND-Intent to perform the share-related action. When a user clicks the app icon in the Action Bar, the app will display a list of sharing applications. Once this share action is completed, the app returns the user to its own Android app. Using the ShareActionProvider library is simple and convenient.

You’ll need a share-action provider for Android apps if you plan on sharing the content on your app with other people. Share-Intent is an important part of Android development and provides a convenient, Mokhoa o bonolo oa ho sebelisa leseli le ba bang. Ho bohlokoa ho hlokomela hore kabelo ea arolelanang ho kenyelletsa tumello ea ho bala le ho ngola lintlha. Ka ho hloleha, o tlameha ho ba le litokelo tsa admin bakeng sa sesebelisoa sa hau.

Ho kenya tšebetsong karolo ena ho arolelanang ntho ea hau, U hloka ho kenyelletsa kabelo ea kopanelo ho ea Bar. Joale, fetisa litaba ka ho etsa mosebetsi le kabelo kabelo ea arolelanang kabelo ho tla etsa tse ling kaofela. U ka sebelisa hape kana kana kabelo ho sesebelisoa sa hau sa gallery, e leng mohlala o motle oa ho u bontša mokhoa oa ho eketsa ts'ebetso ena ho sesebelisoa sa hau. O ka bala haholoanyane ka ntho ena ho batsamaisi ba rona ba Bar Barving.

Ketsahalo ea Lifecycle Callbacks

Ha o theha ketsahalo e ncha ho Android, U lokela ho sebelisa mehala ea bophelo ho netefatsa hore e tsoela pele ho sebetsa ka mor'a hore mosebelisi a tlohele app. Ho sebelisa mekhoa ena ho bohlokoa ho thibela memo e tsoa memori, e ka nyenyefatsang ts'ebetso ea sistimi ea hau. Hape, Ha o sebelisa mekhoa ena, U lokela ho qoba ho etsa lik'homphieutha tse tebileng nakong ea phomolo() Callback hobane e ka lieha phetoho ho tsoa mesebetsing e 'ngoe ho ea ho e' ngoe, e ka lebisa ho boiphihlelo bo bobe ba mosebelisi.

Ketsahalo ea bophelo ba bophelo e ka u thusa ho fihlela sepheo sena ka ho bitsa liketsahalo tse ikhethang nakong ea liketsahalo tse fapaneng tsa bophelo ba ketsahalo. Ea pele, THENCREA() e bitsoa ha ketsahalo e thehiloe lekhetlo la pele. The onStart() callback hangata e lateloa ke onresthuume le ho phomola. Maemong a mangata, Ho bitsetsoa ka mokhoa oa boithabiso ho bitsoa pele ho mokhoa oa Onstoptop.

Ha ketsahalo e emisa, the onPause() Mokhoa o emisa bamameli bohle le ba boloka data ea kopo ea kopo. Outpause() le Onstop() methods are guaranteed to be called before an activity ends. The onResume() method is called when an activity resumes and its configuration states change. The Android system will recreate the activity with the new configurations. Ka tsela ena, your app’s users will be able to resume their activity and use it.

Activity Lifecycle Callbacks are a great way to ensure that your application is working in the background. This callback is called whenever an activity goes into the background. You can override this method by calling the method on the super class. Remember to call this method when necessary as not calling it will lead to your app to crash or get stuck in a strange state. Leha ho le joalo, make sure you call the onPause() method when you need to.

Refactoring tools

If you develop Android apps, U lokela ho nahana ka ho sebelisa sesebelisoa sa ho pheta-pheta. Lisebelisoa tsa ho qala li fumaneha ka studio sa hau sa Android kapa sejini se pheta-phetoang. Li-Studio tsa Android li fana ka mefuta e mengata ea ho khutlisa, Ho kenyelletsa litlelase tsa Ranaming Java, sebopeho, tlatsetso, le mekhoa. Lisebelisoa tsena tsa ho matlafatsa lisebelisoa li na le likhetho tse fapaneng, 'me re tla akaretsa e' ngoe ka ho qaqileng ka litlolo tse ka tlase.

Lisebelisoa tsa tokiso ea li-android tse ka ntlafatsang boleng ba khoutu ea hau le ho fokotsa khoutu ho monkotso. Ho thibela I / O Ts'ebetso e ka ba le tšusumetso e mpe ea ts'ebeliso ea sesebelisoa sa smartphone, mme o sebelisa async e sa lokelang asyn e ka baka mathata joalo ka memori e tsoa, matla a ho senya, le lisebelisoa tse senyehileng. Lisebelisoa tsa ho qala hape li fumaneha ho felisa litaba tsena ka ho khutlisa khoutu ea Async ka khoutu ea sehlooho. Sesebelisoa sa ho pheta joalo ka mokhoa oa ho pheta-pheta joalo ka Asyncdroid o ka hula ts'ebetso ea nako e telele ho isa Android Assyncykk.

Lisebelisoa tsa ho etsa likopo tsa likopo tsa Android le tsona li ka ntlafatsa lits'ebetso tsa Lefapha la Lefats'eng la Lefats'e. Ba lumella bahlahisi ho fetola khoutu ea khoutu ntle le ho ama bophelo bohle ba kopo ea selefouno. Holim'a moo, Bahlahisi ba ka boela ba hloekisa likarolo tse ikhethileng, ka tsela eo ho ntlafatsa boleng ba khoutu ka kakaretso le boiphihlelo ba mosebelisi ntle le ho ama potoloho ea nts'etsopele ea mobile. Bahlahisi ba bangata ba tseba ho hola ha android bophelo bo botle, le ho sebelisa lisebelisoa tsa ho boloka Android li tla sebetsana le ts'ebetso ea lits'ebetso tsa lefa ho lisebelisoa tsa mohala.

Ho hlakoloa ho ka qhekella li-apps tse hlahisang tlhahiso, Empa ke mosebetsi oa bohlokoa bakeng sa bahlahisi. Lokolla mofuta oa hau o mocha sehlopheng se senyenyane sa basebelisi ho leka boitšoaro ba eona le ho sebetsa. Ho bohlokoa hape ho leka ts'ebetso ea sesebelisoa se hatelletsoeng le liperesente tse ka tsamaisoang pele li ea phatlalatsa. Le ha ho na le melemo e meng ea lisebelisoa tsa ho sebelisa Android, U lokela ho lula u hopola hore ho molemo ho qoba ho ngola khoutu e teng haeba e sa hlokahale.

MIT App Inventor

Moqapi oa App ke tikoloho e kopaneng (IDE) Bakeng sa lits'ebetso tsa webo. Qalong e fanoe ke Google, Hona joale e se e bolokiloe ke Setsi sa Massachusetts sa theknoloji. Tokelo ea ho etsa hore ho be bonolo ho bahlahisi ho etsa likopo bakeng sa lipolanete tse fapaneng. Sesebelisoa sa moqapi ea Mit Apple se na le thuso haholo ho theha lits'ebetso tsa Android. E na le lisebelisoa tse ngata le lilaebrari, ho kenyelletsa tikoloho ea lintho tse bonahalang bakeng sa Android.

Moqapi oa APT APP hape ke khetho e ntle ea ba qalang le matichere a rutang ho fihla likolong. Mokhoa oa lenaneo la lenaneo o etsa hore o tšoanelehe bakeng sa ho hlahisa li-prototype tsa mobile ka potlako. Baithuti ba ka theha le ho leka litlolo tsa bona ho lisebelisoa tsa bona tsa mehala, Sebakeng sa ho ba le ho lekanya lab. Mit o lokolletse tse ling tse 'maloa ho thusa bahlahisi ho theha lisebelisoa tse khethehileng tsa mobile le sebopeho se nang le lisebelisoa tsa iOTP. Holim'a moo, Bahlahisi ba ka ngola likarolo tsa tloaelo ba sebelisa sesebelisoa sena.

Moqapi oa APT APP ke sesebelisoa se ka thusang baithuti ho ntlafatsa lisebelisoa tsa mobile. E na le sebopeho sa sesebelisoa sa mosebelisi le se nang le maikutlo se lumellang basebelisi ho aha le ho leka lits'ebetso tsa bona ka nako ea 'nete. Ka mofuta oa eona oa mahala, Baithuti ba ka kopana le baetsi ba bang ba nang le kelello le ho botsa lipotso. Sechaba sea tšehetsa ebile sea thusa. Empa ho sebelisa lenaneo lena ka botlalo, Baithuti ba tlameha ho ba le khokahano e ntle ea inthanete.