Baro Aasaaska Horumarinta Appka Android

Baro Aasaaska Horumarinta Appka Android

You may be new to Android app development. To learn more about this language, read our articles on Java, Kotlin, Activity, and Fragmentation. This will give you an understanding of the fundamentals of Android programming. Sidoo kale, you will be able to create an Android app by following the steps described in the tutorials. There are many more articles on Android available on the web. If you have any questions, don’t hesitate to ask in the comments section below.

Java

As you learn the Java for Android app development language, you will likely encounter a number of challenges. Si kastaba ha ahaatee, there are several things you can do to maximize the learning experience. Marka hore, choose a project you can complete easily, such as a game. After that, waxaad sii wadi kartaa inaad barato horumarinta abka Android adigoo dhisaya noocyada kale ee codsiyada. Sida aad wax u baranayso, waxaad sidoo kale dhisi doontaa shabakadaada horumariyayaal oo waxaad isweydaarsan doontaa fikradaha. Ma aha oo kaliya inaad xirfadaha cusub ka baran doonto asxaabtaada, laakiin waxa kale oo aad caawimo ka heli doontaa dhibaato kasta oo aad la kulanto marka aad horumarinayso app-kaaga.

Faa'iidada kale ee weyn ee Java ee horumarinta app-ka Android waa in loo isticmaali karo si loo horumariyo codsiyada iskutallaabta ah. Maadaama Java uu yahay luuqad barnaamij-waxbarasho oo furan, uma baahnid inaad lacag bixiso si aad u isticmaasho, taaso war fiican u ah kuwa u baahan in ay horumariyaan apps-ka aaladaha kala duwan. Sida luqad il furan, Java waxa ay haysaa maktabado badan iyo habab nakhshad aan caadi ahayn oo ay horumariyayaashu isticmaali karaan si ay u abuuraan codsiyada mobaylka ee adag. Java applications can also be easily modified to fit the needs of different developers.

Although Kotlin is a better choice for Android app development than Java, it does require a learning curve. Kotlin is an object-oriented programming language that is compatible with both Java and Android. Java is also a popular language for building game consoles, data centers, and cell phones. If you plan to develop an app for Android, it’s best to start with Java and learn Kotlin.

Kotlin

A good place to start learning Kotlin is Peter Sommerhoff’s book, Kotlin for Android App Development. Sommerhoff offers an extended set of code listings and leads readers through the development of two Android apps. The book is well illustrated with many screenshots and diagrams. While the book teaches you Kotlin, it is best to start by reading other Android books on the subject. It will be easier to understand and learn the language if you know how to read it.

Many Android developers are already familiar with Java, so converting their existing codebase to Kotlin is a relatively straightforward process. While there are certain differences between the two languages, it should only take a few weeks to become fully versed. Sida luqad kasta oo cusub, make sure to take your time. While Java is still the most popular, it will likely be a long time until it replaces Kotlin.

Kotlin is a Java-based programming language, and it’s easy to call Java code in it without any difficulty. Dhab ahaan, Java and Kotlin both generate similar bytecode. Waxaad baran kartaa isticmaalka Kotlin si aad u abuurto app Android adiga oo ku qoraya qaybo fudud oo ka mid ah abka gudaha Kotlin ka dibna u beddela codebase intiisa kale Java.. Faa'iidooyinka isticmaalka Kotlin ee horumarinta abka Android aad bay u badan yihiin.

Tafaraaruqa

Waxaad isticmaali kartaa fikradda kala-jajabinta horumarinta abkaaga Android adiga oo isticmaalaya 'jajab’ qaab. Jajabku waxay ku nool yihiin ViewGroup ee Hawsha martida loo yahay waxayna ku bixiyaan muuqaal XML ama Java. Jajabku waxay hirgeliyaan onCreateView() habka, Kaas oo buufiyo UI ee jajabka oo soo celiya qaab-dhismeedka xididka haddii uusan midna jirin. Jajabku waxay leeyihiin laba faylal kheyraad qaabeynta. Mid ayaa soo bandhigaya qoraalka kan kalena waxa uu soo bandhigayaa midabka asalka ah.

Inta lagu jiro horumarinta jajabkaaga, waa lagama maarmaan in la waco onCreate() habka marka la abuurayo jajabka. Habka waa in uu bilaabaa qaybaha lagama maarmaanka ah oo uu hayaa xitaa marka jajabku istaago ama la joojiyo. Intaa waxaa dheer, waa inaad wacdaa onCreateView() dib u soo wacida markii ugu horeysay sawir UI. Haddii aad rabto in aad meesha ka saarto habkan, waa inaad wacdaa ilaa hirgelinta heer sare.

Faa'iidada kale ee kala qaybsanaantu waa inay kuu ogolaato inaad beddesho muuqaalka iyo dareenka qaybaha kala duwan ee hawsha wakhtiga runtime. Iyada oo la kaashanayo jajabyada, waxaad ku dari kartaa ama ka saari kartaa qaybaha oo aad dib u celin kartaa isbeddelada. Jajabka waxaa loo isticmaali karaa hawlo badan, waxayna sidoo kale noqon karaan caruur jajabyo kale. Kaliya iska hubi in jajabyadaadu aysan ku xirneyn jajabyada kale. Qaybahani waxay wadaagi karaan isla hawsha waalidka.

Activity

Si aad u bilowdo hawl, waxaad u baahan tahay inaad ogaato waxa habka onCreate sameeyo. Habkan waxa loo yaqaan marka ugu horraysa ee hawsha la abuuro. Habkan, waxaad bilaabi kartaa walxaha xogta iyo walxaha UI. Waxaad tirtiri kartaa doorsoomahaInstanceState ee la badbaadiyay si loo go'aamiyo qaabka hawsha. OnAbuur(Xidhmo) wacCreate() marka ugu horraysa ee Hawshu bilaabato. Markaa, mar kasta oo Hawsha laga baxo, waxay ku baaqaysaa dumin().

Joogsiga() dib-u-soo-celinta waxaa loo isticmaalaa in lagu sii daayo kheyraad culus. Waxa kale oo ay joojisaa dib-u-ciyaarista muuqaal ama animation. Joogsiga() habka waxa loo yaqaan marka hawshu aanay sii jeedin. Sida onStart() habka, Midkani wuxuu kaloo qabtaa shaqo yar oo dheeraad ah. Waxay kaydisaa dhammaan macluumaadka gobolka ee xusuusta, waxaana sidoo kale loo yaqaannaa marka hawshu lumiso diiradda. Inta badan kiisaska, kaliya waxaad wici doontaa onStart() habka hal mar ee wareegga nolosha ee dhaqdhaqaaqa.

Waxqabadku waa abka lagu soo saaray aaladda Android-ka. Abkan waxa uu isticmaalaa dareemaha gudaha ee qalabka si uu u qabto hawlo kala duwan, oo ay ku jiraan sawir-qaadista, kaydinta xogta, iyo fulinta falalka. Ardaydu waxay horumarinayaan abka iyagoo isticmaalaya software bilaash ah, sida MIT App Inventor. Ardaydu waxay kaloo ka soo dejisan karaan software-kan internetka. Software-kani wuxuu sidoo kale u ogolaanayaa ardayda inay ku celceliyaan naqshadeynta barnaamijyadooda iyo xirfadahooda. Ugu dambayntii, ardaydu waxay awood u yeelan doonaan inay daabacaan barnaamijyadooda Android oo ay kasbadaan dibloomada sayniska kombiyuutarka.

Qaybta waxqabadka

Dhaqdhaqaaqu waa nooc is-dhexgal isticmaale ee abka Android. Waxay ka kooban tahay kala sareynta aragtiyaha, Mid kastaa wuxuu xakameynayaa meel bannaan oo leydi ah oo gudaha daaqadda waxqabadka ah. Aragti kastaa waxay leedahay magac gaar ah iyo hawl kale – tusaale ahaan, badhanka ayaa kicin kara ficil marka isticmaaluhu taabto. Liiska sifooyinka waxa lagu qeexi karaa fasalka Hawsha. Changing the Activity class’s name can break functionality.

The Activity class consists of subclasses. Each activity implements a method that responds to changes in the application’s state. Activities are managed in a container environment. They are similar to Java applets and servlets. You can use the Activity life cycle to test whether the application will restore its state when the user rotates the device. To use the Activity component in Android app development, you must learn the basics of Android programming.

The onSaveInstanceState() method can be overridden to save the current state of the UI. Si kastaba ha ahaatee, it’s important to note that onSaveInstanceState() is not guaranteed to be called before an activity’s destruction. If the state of the activity changes, waxaa fiican in la iska dhaafo RestoreInstanceState() halkii. Sidan, waxaad la socon kartaa isbeddelada uu sameeyay isticmaaluhu waqti gaar ah.

Qaybta navigation

Qaybta navigation ayaa mas'uul ka ah cusboonaysiinta UI ee abka ka baxsan NavHostFragment. Halka inta badan cusboonaysiinta muuqaalka navigation ay ka dhacaan gudaha NavHostFragment, Qaybta Navigation sidoo kale waxaa loo isticmaali karaa in lagu muujiyo walxaha kale ee UI, sida khaanadaha navigation ama bar tab ah oo muujinaya meesha isticmaaluhu joogo. Kuwa soo socda ayaa ah qaar ka mid ah siyaabaha caadiga ah ee loo isticmaalo qaybta navigation ee abkaaga.

Marka hore, u gudub faylka navigation. Kani waa Navgraph, faylka kheyraadka oo ka kooban macluumaadka la xiriira navigation. Waxay soo bandhigaysaa aagagga macluumaadka gaarka ah ee abkaaga waxayna sharraxaysaa waddooyinka suurtogalka ah ee loo maro abkaaga. Isticmaalka tafatiraha navigation, waxaad sawiri kartaa Navgraph-ka, qaab-dhismeedka geed-u- eg ee nuxurka navigation. Navgraphs waxa loo qaybiyaa meelo iyo ficillo, kaas oo qeexaya dariiqooyin kala duwan oo isticmaaluhu uu ku dhex mari karo abka.

Qaybta navigation-ka waxa ay aad u fududaynaysaa hirgalinta navigation abka Android. Waxay raacdaa mabaadi'da kala duwan waxayna ka dhigtaa hagidda si joogto ah dhammaan abka. Sababtoo ah fududaanteeda, Navigation waxay u baahan tahay hal hawl oo keliya, kaas oo u oggolaanaya animations fudud oo u dhexeeya jajabyada oo wanaajiya waxqabadka abka. Waxay ku xallisaa dhibaatooyin badan oo ku saabsan hagidda abka Android waxayna wax badan ku kordhinaysaa nidaamka deegaanka Android. Waxaad isticmaali kartaa qaabkan si aad si dhakhso leh u horumariso abka adigoon kood ka gelin UI.