Matou te fa'apolokalame lou va'aia! Fa'atino lelei ile ONMA scout Android app development e fa'amaonia.
Fa'afeso'ota'i
Afai o loʻo e sailia se auala e aʻoaʻo ai pe faʻafefea ona faʻagasologa o le Android talosaga, Ona tatau lea ona e mafaufau e ave le Android Apps Programmer Actimemer. O nei vasega e atoatoa mo Amataga, E pei ona latou le manaʻomia se mea muamua na latou mauaina poʻo tua atu. O le ae aʻoaʻo Java, Kotlin, Toso-ma-pa'ū, ma le faamoemoe. Ina ua maeʻa lenei vasega, O le a ia te oe le malamalama atoatoa o le Android polokalame. Peitai, E tatau ona e nofouta i nisi o mea taua aʻo leʻi amataina lenei vasega.
Afai e te fiafia i le aʻoaʻoina o faʻavae o Android App Programmmieren i Java, E te manaʻomia se malamalama lelei o le gagana. Java o le sili ona lautele faʻaaogaina polokalama polokalama mo le Android ma o le gagana sili ona manaʻomia mo le faia o polokalama feʻaveaʻi. This course covers Java basics and introduces Object-Oriented Programming. You’ll also learn how to work with Android studio, a popular app development tool. During the course, you’ll create an Android project and explore the basics of creating an Android app.
While the standardized methods of Android app programmieren in Java are popular, they’re also extremely limiting in their capabilities. While this method is effective for creating simple Android apps, you’ll have to change the Java code if you want to add more features. You’ll need to learn Java well, and it’s not for everyone. Most entrepreneurs opt to hire a specialized Android app developer to work on their apps.
If you’re an advanced Android programmer, E mafai ona e faʻaogaina le async-galuega-fratwork ma faʻaaoga tulaga e tuʻuina atu galuega. E mafai foi ona e faʻaaogaina le Android Studio's fausia-i le logging system e fai ai lau Android app sese-saoloto. Ma o le a e fiafia ia te oe pe a fai o lau apps galue e pei ona fuafuaina. Tau lava ina ia mautinoa o loʻo e siaki le logging system aʻo leʻi lafoina i latou i le app maketi.
Afai o loʻo e taumafai e tusi se Android app, Atonu e te mafaufau e faʻaaoga le KOTON. O lenei fou polokalame polokalame mo Android apps o se filifiliga sili ona o lona faigofie. O lona faigofie o se ata autu e teu i lou mafaufau, A o le aʻoaʻoga KOTOL e mafai ona faigata. Peitai, O le taimi lava na e puleaina ai mea autu o Java, o le a e fiafia e galue ma kotlin. E le gata e faigofie atu ai lou olaga, ae o loʻo saogalemu foʻi ma le tulaga o le eleele.
The Android-App consists of a series of activities, one for each screen. After completing one activity, you move on to the next one. The main activity in an app is the MainActivity, which is a Java class and a subclass of the Android class Activity and AppCompatActivity. It’s the entry point for the app and contains the static methods main() ma onCreate().
After you learn the basics of Kotlin, you should consider learning how to develop an Android application using it. There are many resources available to learn how to use Kotlin for Android, and you can even follow along with a project. A free course that uses a project-based approach helps you develop your Kotlin skills. To learn more, check out the courses offered by Google or Udacity.
To implement drag-and-drop in your Android app, E tatau ona e iloa faʻamatalaga e uiga i le ala o le toso-ma-drofing masini galue. Toso-ma-pa'ū mea e mafai ona amatalia e soʻo se masini e ala i le faʻatupuina o se tagata faʻaaoga, Ma o le Android Framework o loʻo maua ai le tosoina o le vasega vasega ma toso tagata faʻalogo mo gaioiga taʻitasi. O le toso auala e matua faigofie lava: O le puna o le app triggers le toso mea na tupu e ala i le lafoina o se amataga() valaau i le faiga. O lenei Callback ona maua ai lea o le toso faamatalaga i le faiga. Ina ua uma ona taulimaina le toso, O le puna o le app e mafai ona vili le togi mea na tupu e siaki pe na manuia.
O le Android Sart-ma-dron statework faʻatagaina tagata faʻaaoga e faʻagaioi ai faʻamatalaga i le va o le tele o mea i se gaioiga gaioiga. O le Dra erter Vasega, tagata faalogologo, ma vasega ua mamanuina ina ia lagolagoina faʻamatalaga faʻamaumauga. E mafai foi ona e faʻaaogaina le '' au taʻavale e faʻatino ai isi gaioiga UI. In addition to moving data between objects, it can also be used to create interactive navigation and other features. Peitai, for advanced features, you should consider implementing drag-and-drop in your application first.
You must register as a listener to drag events. Drag events are triggered whenever the user moves or releases the View object. The drag event is dispatched to listeners and callback methods. These methods receive the data and decide whether to accept or reject it. You can even use these methods to change the appearance of the View object. When you’re ready to create an app with drag-and-drop features, you should be familiar with the basics of drag-and-drop Android app programming.
Intents are used to move from one activity to another in an Android application. Intents enable you to switch from one activity to another by using a specific language. In contrast to normal PC applications, which have only a single screen, Android apps can have a multitude of screen pages, each dedicated to a specific activity. These screen pages are accessed by the user in the target activity. Intents help you build better mobile applications.
Intents can also be used to jump from application to application. Many Android users see jumping from one application to another. Faataitaiga, if a user receives a payment link, they may open a PayPal or GPay application. In such situations, the system can respond by passing an Intent to the user. Intents allow you to move from one app to another with ease. You can even use them to create a new application entirely!
Intents work differently in each case. If you want to display information about stock prices, you can use an asynchronous task called “ListView”. This app displays data from a list view when the user clicks on the listen element. The same goes for listing financial information in an app. E lē gata i lea, you can use asynchronous tasks for complex actions, like logging in to the Internet or checking your email.
One of the best ways to protect an Android application is to use sandboxing. This process protects the operating system from malicious applications by running the app in its own “space.” This protects the user’s device from the impact of other apps. Using sandboxing is very easy and will make your Android app safe for your users. To learn how to use sandboxing for Android app programming, faitau pea.
Faataitaiga, suppose you want to display the shares of your users. Ona, you could use a BufferedReader and an InputStream to read the data. Using an InputStream, you could use simulated financial data to show the contents of a log message. You could even use this same string to display a message to users. When you use the Internet, the Android system needs an asynchronous task. This is called a HoleDatenTask, and it runs in the background.
Android’s sandbox uses the user ID to establish security between apps and processes. Its security model enforces separation of processes and users. It also controls the access to files that are not associated with the application. This protects the device from malicious apps. Sandbox is simple, auditable, and is based on UNIX-style user separation of processes. E faʻamalosia foʻi le faʻatagaina o le faila. I se taimi puʻupuʻu, E faʻatumauina le Android System saogalemu mai faʻamatalaga leaga.
Afai e te fou i polokalame Android, E mafai ona e mafaufau i le mea e amata ai. Ua laki, E i ai ni nai punaoa avanoa e fesoasoani ia te oe ua amata. Faʻaaogaina o le Android Activel Process Houkes pei o le Android Studio o se tasi o sili sili ona faigofie auala e amata ai. E leai foi, O lea e leai se mafuaaga e faʻatali ai seʻia oʻo ina avea oe ma tagata poto e amata! O lenei vasega o le a aʻoaʻo atu ia te oe faʻavae o Java ma Android polokalame. E aofia ai foi le auala e faia ai se app ma faia se taaloga.
O le lesona muamua o le Android polokalame amata i se folasaga i le pu faʻamaumauga faʻamau ma le tagata faʻalogologo, o le mea e nafa ma le faʻailoaina o tagata faʻaaoga. Ona e aofia ai ma le le iloa vasega ma mea na tutupu. I le male, tamaiti aʻoga o le a aʻoaʻo e uiga i sauniuniga mo Quellcode, O le Herva-Programmation Mea faigaluega mo Android. O nei meafaigaluega e faʻafaigofie ai ona fai le faʻalogo-mea ma faʻaleleia le vaʻaia o lau tulafono.
Afai o oe o se tagata atiaʻe o loʻo suʻe e atiaʻe ai le Android app, Java o se vaega taua o le faiga. Atiina aʻe o le tagata Android polokalama ma Javascript manaʻomia se SDK, pei ole Android Studio. E le pei o talosaga i luga ole laiga, E mafai ona saʻo e le Asthy Android polokalama faʻaaoga saʻo uma galuega feaveaʻi ma polokalama, aofia ai ma le mea pueata ma le masini faaleotele leo. Ona o lea mea, Afai o oe o se tagata atiaʻe, O le ae maua se lelei i luga o le tagata atiaʻe e faʻaaogaina ios poʻo faamalama.
A o mafai ona fausia Android apps faʻaaogaina isi gagana, Java o le gagana aloaia a le gagana mo le tulaga. A o i ai isi gagana polokalama, Tele taʻitaʻi auai e fesuiaʻi i le kotlin e tusi ai a latou talosaga. Twitter, Pinterest, Uber, ma le ea ea e faia uma le ki e faʻaaoga ai le kotlin. E mafai foi ona aʻoaʻo atili e uiga i le faitauina o a matou talitonuga loloto - faʻafefea - e taʻitaʻi.
O le lelei o le faʻaaogaina o Java e fausia ai le Android Apps e toʻatele. E faigofie le gagana le gagana, Faigofie e debug, ma tuufaatasia, ma o le mea faitino, Faʻatagaina o tagata atiaʻe e tusi ai polokalame modular o loʻo taliaina tulafono. E le gata i lea, O le java o le koluse-tulaga, faʻafaigofie ona faʻagaioi le numera i le va o komepiuta faiga. I le male, O Java o le sili ona fetaui ma le Android's Assive Kim, faia o se filifiliga lelei mo le tele o poloketi.
Pe a fatuina polokalama Android, E taua le iloa o le mea e tatau ai lau faʻataʻitaʻiga ma mea latou te mafaufauina mai le app. Afai o lau sini a lau auupega e matua talavou, E mafai ona e faʻaogaina le C ++ gagana. Peitai, you should keep in mind that C++ is not as user-friendly as Java, so you may want to consider another programming language. E ui i lea, you must choose a language that makes your target audience happy. If you don’t know Java, you can try Objective-C. This is a general-purpose object-oriented programming language originally created by Tom Love and Brad Cox for Smalltalk-80 systems.