Tagħżel il-Lingwa t-Tajba biex Tiżviluppa App Android

L-iżvilupp ta 'app android huwa mod tajjeb ħafna biex tagħmel il-flus waqt li titgħallem l-elementi ta' lingwa ta 'programmazzjoni ġdida. Hemm ħafna tipi differenti ta 'lingwi li tista' tuża biex toħloq apps għal apparati Android, inkluż Java, Kotlin, Swift, Għan-Ċ, u iktar. L-għażla tal-lingwa t-tajba hija essenzjali biex jinkisbu l-aħjar riżultati, Allura huwa importanti li tagħmel xi riċerka.

Java

Java hija waħda mill-aktar lingwi popolari użati fl-iżvilupp tal-app mobbli. Il-kompatibilità universali tagħha tfisser li tista 'taħdem fuq kważi kull apparat u sistema operattiva. In-natura ħielsa tagħha tagħmilha wkoll għażla ideali għall-iżviluppaturi li m'għandhomx esperjenza. Hija lingwa ta 'sors miftuħ u teħtieġ biss investiment żgħir għall-iżvilupp tal-app mobbli. Ħafna żviluppaturi jagħżlu din l-għażla ħielsa biex jiżviluppaw apps għal diversi pjattaformi.

Il-lingwa ta 'programmazzjoni Java hija lingwa qawwija għal skopijiet ġenerali. Inħoloq fi 1995 minn Sun Microsystems u issa hija proprjetà ta 'Oracle. Huwa jappoġġja tipi ta 'dejta primittivi u programmazzjoni orjentata lejn l-oġġett. Għalkemm is-sintassi tagħha tixbah C / C ++, Java għandu livell ferm ogħla ta 'astrazzjoni. Barra minn hekk, Il-kodiċi Java huwa dejjem miktub fil-forma ta 'klassijiet u oġġetti. Il-lingwa ta 'programmazzjoni Java hija parti ewlenija tal-iżvilupp tal-app Android. L-iżviluppaturi jistgħu jużaw il-libreriji standard ta 'Java biex joħolqu apps flessibbli u affidabbli.

Wieħed mill-aħjar modi biex titgħallem Java għall-iżvilupp tal-app Android huwa li tagħmel netwerk ma 'żviluppaturi oħra. Li tissieħeb ma 'komunità ta' żviluppaturi jippermettilek taqsam dejta u għarfien ma 'żviluppaturi oħra. Dan il-mod, Int ser ikollok netwerk ta 'nies li jduru meta tkun imwaħħal fuq ċertu proġett. They’ll be able to help you with problems and help you develop your Java app development skills.

Kotlin

Kotlin for Android app development is a language that can help you build Android apps. With this book, you’ll learn the basics of Kotlin. It has a large set of code listings and walks you through building two Android apps. The book is written by Peter Sommerhoff and will be helpful if you’re new to Kotlin or are a beginner.

Kotlin is a programming language that is similar to Java, but has its own unique features. B'riżultat ta 'dan, it can offer greater productivity for developers. The language is easy to learn and readable, which means less boilerplate code. This will result in a faster development time and lower maintenance costs.

If you want to develop Android apps quickly, Kotlin hija għażla eċċellenti. Diversi pakketti tas-software diġà jappoġġjaw lil Kotlin. Jekk diġà taf Java, Tista 'faċilment tintegra Kotlin fl-IDE tiegħek.

Għan-Ċ

Jekk trid toħloq apps kemm għall-iOS kif ukoll għall-android, Tista 'tuża Objective-C. Din hija l-lingwa ta 'programmazzjoni primarja għall-Mac OS X, Iżda huwa utli wkoll għall-iżvilupp ta 'logħob u applikazzjonijiet oħra għal pjattaformi oħra. Huwa superset ta 'C u jinkludi ħafna karatteristiċi, bħal kapaċitajiet orjentati lejn l-oġġett u runtime dinamiku. Objective-C jiret it-tipi primittivi tal-lingwa Ċ, iżda żżid sintassi għad-definizzjonijiet tal-klassi u l-immaniġġjar tal-graff tal-oġġett. Jipprovdi wkoll ittajpjar dinamiku u jiddefendi ħafna responsabbiltajiet għar-runtime.

Objective-C huwa lingwa ta 'programmazzjoni qawwija u popolari. Għandu livell għoli ta 'prestazzjoni u huwa faċli biex titgħallem. Madankollu, Mhuwiex sempliċi biex tużah daqs malajr. Apple reċentement introduċiet lil Swift bħala s-suċċessur ta 'Objettiv-C, li hija lingwa ta 'kodifikazzjoni ta' pjattaforma transkonfinali għal iOS u android. Għandu ħafna karatteristiċi li jagħmluha aktar faċli li toħloq apps b'interfaces intuwittivi.

Objective-C huwa lingwa ta 'programmazzjoni popolari ħafna għall-iżvilupp tal-mowbajl u tal-web. Jipprovdi ħafna benefiċċji, inkluż sintassi tal-kodiċi konċiża u ċara. Jikkompila wkoll lil JavaScript u kodiċi indiġenu, u huwa kompatibbli ma 'Java. Dan jagħmilha għażla popolari għall-iżviluppaturi tal-app Android. Barra minn hekk, Jista 'jkun ikkompilat inkroċjat għall-użu fuq pjattaformi oħra, tagħmilha lingwaġġ ta 'programmazzjoni versatili.

Swift

L-użu ta 'Swift biex tiżviluppa l-app Android tiegħek jista' jkun ta 'benefiċċju għall-veloċità u l-prestazzjoni tal-app tiegħek. Swift hija lingwa ta 'programmazzjoni qawwija żviluppata minn Apple. It aims to give developers more flexibility in implementing their creative ideas. It supports all Apple devices and is faster than Objective-C. Il-popolarità tagħha qed tikber, and more developers are integrating Swift code into their apps. Barra minn hekk, Swift apps are safer to run than those written in Objective-C.

The first step in learning to develop an Android app is to learn the programming language. The languages used in building an app include Java, Għan-Ċ, u Swift. If you have some programming experience, you can choose any of these languages and use them to create a custom app. You can also try hybride apps with HTML5 or JavaScript.

Swift also features C++ API compatibility, which can be beneficial if you want to build a cross-platform app. Barra minn hekk, Swift also supports Android Autolayout, which makes creating UIs easier. Minbarra dan, Jipprovdi wkoll għażliet biex tuża oqfsa ta 'partijiet terzi. B'dawn il-karatteristiċi kollha, Swift jista 'jkun għodda kbira għall-iżvilupp tal-app Android.

OpenGL

Jekk qed tippjana li tiżviluppa app Android, Imbagħad għandek tikkunsidra li tuża OpenGL. Din il-lingwa ta 'programmazzjoni tippermettilek toħloq logħob u grafika 3D. Huwa jappoġġja firxa wiesgħa ta 'daqsijiet tal-iskrin. Tista 'wkoll tuża OpenGL biex toħloq veduti tal-kamera u tapplika projezzjoni. Jekk m'intix ċert kif tuża OpenGL, Tista 'taqra aktar dwarha fil-gwida tal-iżviluppatur.

OpenGL huwa implimentat b'mod wiesa 'f'varjetà ta' pjattaformi tal-ħardwer, Li jagħmilha aktar faċli għall-iżviluppaturi biex joħolqu applikazzjonijiet indipendenti mill-pjattaformi. Barra minn hekk, OpenGL mhux affettwat mil-limitazzjonijiet tal-aċċellerazzjoni tal-ħardwer. Dan ifisser li tista 'tiżviluppa applikazzjonijiet li jaħdmu bla xkiel fuq pjattaformi differenti, inkluż Android. Dan huwa vantaġġ ewlieni għall-iżviluppaturi tal-android. Barra minn hekk, OpenGL huwa appoġġjat mill-biċċa l-kbira tal-apparati mobbli. L-użu ta 'din it-teknoloġija se jagħmel l-apps tiegħek aktar flessibbli.

OpenGL juża żewġ tipi ta 'shaders, imsejħa shaders tal-vertiċi u shaders tal-framment. Il-vertiċi shader jipproċessa d-dejta tal-ġeometrija b'mod rasterizzat, Filwaqt li l-Fragment Shader jimmaniġġja l-informazzjoni dwar in-nisġa u l-kulur. Dawn iż-żewġ tipi ta 'shaders imbagħad jaħdmu flimkien biex jagħmlu karattru 3D fuq l-iskrin.

APIs tas-servizz ibbażati fuq il-post

L-APIs tas-servizz ibbażati fuq il-post Android jipprovdu mod sempliċi biex tibni applikazzjonijiet konxji mill-post. Uża dawn is-servizzi, Tista 'żżid karatteristiċi bħal ġeofencing u rikonoxximent tal-attività għall-app tiegħek. Il-post APIs jirritorna numru ta 'parametri, bħal distanza, eżattezza, u veloċità, għall-app tiegħek.

App ibbażata fuq il-post tista 'toffri ħafna benefiċċji, from virtual tours and Augmented Reality tools to tracking user preferences. These applications also offer business owners data about their customers’ behavior, which can help them to develop their marketing strategy. Barra minn hekk, these apps may provide map integration and GPS coordinates.

Location-based service APIs for Android app developers provide two options to developers: a manual way to input location data into an application, or a service that automatically locates users by using the GPS information. There is a fine line between using both of these methods, so developers should choose the option that best meets their needs.

Dagger

You can create multiple components with the Dagger android app develop framework. Imbagħad, you will need to define them in the appropriate way. Pereżempju, you could create a LoginViewModel and a LoginActivity. Both components will have the same functionality, but will require different underlying classes. You can use this pattern to make your application more scalable and efficient. Madankollu, you need to be aware of some limitations.

One of the disadvantages of using scope annotations is that they can introduce memory leaks. Since a scoped component must be in memory when it is injected into an activity, it will remain there until the application is destroyed. On the other hand, a unique instance of UserRepository will remain in memory until the application is destroyed. In order to prevent such problems, you can declare multiple inject() methods in your component. These methods can be named anything but must receive an object that you want to inject.

Dagger also guarantees proper injection of fields using @Inject. This is very important since the framework might not detect your dependencies if it doesn’t find them in the right places. Per eżempju, if a component has multiple instances of a class, Dagger will throw a compile-time error if it can’t find them.

ReactiveX/RxAndroid

Android developers can use ReactiveX to make their apps reactive. This type of programming allows developers to handle network operations on a background thread instead of the UI thread. It is also possible to specify a thread to use for a background job and a separate one for user interface updates. Biex tagħmel dan, we need to create a custom Observable object using the create operator. This object must implement the Observable.OnSubscribe interface and control the onNext, onError, and onCompleted methods.

ReactiveX is a programming language that uses observers and observables to create an object that emits and consumes data. Observables are simple objects that represent various data. They are instances of the Observable class and have a large number of static methods. One of the easiest ways to create an observable is with the just operator, which will create a simple observable. You can also add an observer to it to make the object emit data. This will cause a Hello message to appear in the Android Studio logcat window.

ReactiveX operators can also create, transform, and perform operations on observables. Pereżempju, the operator from can create an observable from a list or array of Integer objects.