- From Eclipse (with ADT), select Window Android SDK Manager. On Windows, double-click the SDK Manager.exe file at the root of the Android SDK directory. On Mac or Linux, open a terminal and navigate to the tools/ directory in the Android SDK, then execute android sdk.
- After installing the SDK, go to Start menu Android SDK Tools SDK manager. Right click on it and select the Run as Administrator option. Note: It is necessary to run the SDK manager in administrator mode or later you will face problems in installing new components.
In this document
- 4. Adding Platforms and Other Components
See also
Sdk manager free download - iODBC Driver Manager, Administrator, SDK, iODBC Driver Manager, Administrator, SDK, Fonts Manager, and many more programs. All Windows Mac iOS Android. Sdk manager free download - Free Download Manager, Android SDK Tools, Internet Download Manager, and many more programs.
This page describes how to install the Android SDKand set up your development environment for the first time.
If you encounter any problems during installation, see theTroubleshooting section at the bottom ofthis page.
Updating?
Jul 22, 2020 Android SDK Platform Tools zip file is now available for download for Windows, Mac, and Linux systems. In this guide, we will also tell you how you can use the Android SDK Platform Tools to run ADB and Fastboot commands on your Android device.
If you already have an Android SDK, use the Android SDK and AVD Manager tool to installupdated tools and new Android platforms into your existing environment. For information about how todo that, see Adding SDK Components
Step 1. Preparing Your Development Computer
Before getting started with the Android SDK, take a moment to confirm thatyour development computer meets the SystemRequirements. In particular, you might need to install the JDK, if you don't have it already.
If you will be developing in Eclipse with the Android DevelopmentTools (ADT) Plugin—the recommended path if you are new toAndroid—make sure that you have a suitable version of Eclipseinstalled on your computer (3.4 or newer is recommended). If you needto install Eclipse, you can download it from this location:
For Eclipse 3.5 or newer, the 'Eclipse Classic' version is recommended. Otherwise, a Java orRCP version of Eclipse is recommended.
Step 2. Downloading the SDK Starter Package
The SDK starter package is not a fulldevelopment environment—it includes only the core SDK Tools, which you canuse to download the rest of the SDK components (such as the latest Android platform).
If you haven't already, get the latest version of the SDK starter package from the SDK download page.
If you downloaded a
.zip
or .tgz
package (instead of the SDK installer), unpackit to a safe location on your machine. By default, the SDK files are unpackedinto a directory named android-sdk-<machine-platform>
.If you downloaded the Windows installer (
.exe
file), run it now and it will checkwhether the proper Java SE Development Kit (JDK) is installed (installing it, if necessary), theninstall the SDK Tools into a default location (which you can modify).Make a note of the name and location of the SDK directory on your system—you will need torefer to the SDK directory later, when setting up the ADT plugin and when usingthe SDK tools from command line.
Step 3. Installing the ADT Plugin for Eclipse
Android offers a custom plugin for the Eclipse IDE, called AndroidDevelopment Tools (ADT), that is designed to give you a powerful, integratedenvironment in which to build Android applications. It extends the capabilitesof Eclipse to let you quickly set up new Android projects, create an applicationUI, debug your applicationsusing the Android SDK tools, and even export signed (or unsigned) APKs in orderto distribute your application. In general, developing in Eclipse with ADT is ahighly recommended approach and is the fastest way to get started with Android.
If you'd like to use ADT for developing Android applications, install it now.Read Installing the ADT Plugin forstep-by-step installation instructions, then return here to continue thelast step in setting up your Android SDK.
If you prefer to work in a different IDE, you do not need toinstall Eclipse or ADT, instead, you can directly use the SDK tools to build anddebug your application. The developer guide has more information about Developing in Other IDEs.
Step 4. Adding Platforms and Other Components
The last step in setting up your SDK is using the Android SDK and AVD Manager (atool included in the SDK starter package) to downloadessential SDK components into your development environment.
The SDK uses a modular structure that separates the major parts of the SDK—Android platformversions, add-ons, tools, samples, and documentation—into a set of separately installablecomponents. The SDK starter package, which you've already downloaded, includes only a singlecomponent: the latest version of the SDK Tools. To develop an Androidapplication, you also need to download at least one Android platform and the SDK Platform-tools(tools that the latest platform depend upon). However, downloadingadditional components is highly recommended.
If you used the Windows installer, when you complete the installation wizard, it will launch theAndroid SDK and AVD Manager with a default set of platforms and other components selectedfor you to install. Simply click Install to accept the recommended set ofcomponents and install them. You can then skip to Step 5, but werecommend you first read the section about the Available Components tobetter understand the components available from the Android SDK and AVD Manager.
You can launch the Android SDK and AVD Manager in one of the following ways:
- From within Eclipse, select Window > Android SDK and AVD Manager.
- On Windows, double-click the
SDK Manager.ext
file at the root of the AndroidSDK directory. - On Mac or Linux, open a terminal and navigate to the
tools/
directory in theAndroid SDK, then execute:
To download components, use the graphical UI of the Android SDK and AVDManager, shown in Figure 1, to browse the SDK repository and select new or updatedcomponents. The Android SDK and AVD Manager will install the selected components inyour SDK environment. For information about which components you should download, see the followingsection about Recommended Components.
Figure 1. The Android SDK and AVD Manager'sAvailable Packages panel, which shows the SDK components that areavailable for you to download into your environment.
Available Components
By default, there are two repositories of components for your SDK: AndroidRepository and Third party Add-ons.
The Android Repository offers these types of components:
- SDK Tools (pre-installed in the Android SDK starterpackage) — Contains tools for debuggingand testing your application and other utility tools. You can access thesein the
<sdk>/tools/
directory of your SDK and read more about them in the Tools section of the developer guide. - SDK Platform-tools — Contains tools that are required to develop anddebug your application, but which are developed alongside the Android platform in order to supportthe latest features. These tools are typically updated only when a new platform becomesavailable. You can access thesein the
<sdk>/platform-tools/
directory. Read more about them inthe Tools section of the developer guide. - Android platforms — An SDK platform isavailable for every production Android platform deployable to Android-powereddevices. Each platform component includes a fully compliant Android library andsystem image, sample code, emulator skins, and any version specific tools. Fordetailed information about each platform, see the overview documents availableunder the section 'Downloadable SDK Components,' at left.
- USB Driver for Windows (Windows only) — Contains driver filesthat you can install on your Windows computer, so that you can run and debugyour applications on an actual device. You do not need the USB driver unlessyou plan to debug your application on an actual Android-powered device. If youdevelop on Mac OS X or Linux, you do not need a special driver to debugyour application on an Android-powered device. (See Developing on a Device for more informationabout developing on a real device.)
- Samples — Contains the sample code and apps availablefor each Android development platform. If you are just getting started withAndroid development, make sure to download the samples to your SDK.
- Documentation — Contains a local copy of the latestmultiversion documentation for the Android framework API.
The Third party Add-ons provide components that allow you to create a developmentenvironment using a specific Android external library (such as the Google Maps library) or acustomized (but fully compliant) Android system image. You can add additional Add-on repositories,by clicking Add Add-on Site.
Recommended Components
The SDK repository contains a range of components that you can download.Use the table below to determine which components you need, based on whether youwant to set up a basic, recommended, or full development environment:
Environment | SDK Component | Comments |
---|---|---|
Basic | SDK Tools | If you've just installedthe SDK starter package, then you already have the latest version of this component. TheSDK Tools component is required to develop an Android application. Make sure you keep this up todate. |
SDK Platform-tools | This includes more tools that are requiredfor application development. These tools are platform-dependent and typically update only whena new SDK platform is made available, in order to support new features in the platform. Thesetools are always backward compatible with older platforms, but you must be sure that you havethe latest version of these tools when you install a new SDK platform. | |
SDK platform | You need to download | |
+ | ||
Recommended (plus Basic) | Documentation | The Documentation component is useful because it lets you work offline andalso look up API reference information from inside Eclipse. |
Samples | The Samples components give you source code that you can use to learn aboutAndroid, load as a project and run, or reuse in your own app. Note that multiplesamples components are available — one for each Android platform version. Whenyou are choosing a samples component to download, select the one whose API Levelmatches the API Level of the Android platform that you plan to use. | |
Usb Driver | The Usb Driver component is needed only if you are developing on Windows andhave an Android-powered device on which you want to install your application fordebugging and testing. For Mac OS X and Linux platforms, nospecial driver is needed. | |
+ | ||
Full (plus Recommended) | Google APIs | The Google APIs add-on gives your application access to the Maps externallibrary, which makes it easy to display and manipulate Maps data in yourapplication. |
Additional SDK Platforms | If you plan to publish your application, you will want to downloadadditional platforms corresponding to the Android platform versions on which youwant the application to run. The recommended approach is to compile yourapplication against the lowest version you want to support, but test it againsthigher versions that you intend the application to run on. You can test yourapplications on different platforms by running in an Android Virtual Device(AVD) on the Android emulator. |
Once you've installed at least the basic configuration of SDK components, you're ready to startdeveloping Android apps. The next section describes the contents of the Android SDK to familiarizeyou with the components you've just installed.
For more information about using the Android SDK and AVD Manager, see the Adding SDK Components document.
Step 5. Exploring the SDK (Optional)
Once you've installed the SDK and downloaded the platforms, documentation,and add-ons that you need, we suggest that you open the SDK directory and take a look at what'sinside.
The table below describes the full SDK directory contents, with componentsinstalled.
Name | Description | ||
---|---|---|---|
add-ons/ | Contains add-ons to the Android SDK developmentenvironment, which let you develop against external libraries that are available on somedevices. | ||
docs/ | A full set of documentation in HTML format, including the Developer's Guide,API Reference, and other information. To read the documentation, load thefile offline.html in a web browser. | ||
platform-tools/ | Contains development tools that may be updated with each platform release (from the AndroidSDK Platform-tools component). Tools in here include adb , dexdump , and othersothers that you don't typically use directly. These tools are separate from the generic developmenttools in the tools/ directory, because these tools may be updated in order to support newfeatures in the latest Android platform, whereas the other tools have no dependencies on theplatform version. | ||
platforms/ | Contains a set of Android platform versions that you can developapplications against, each in a separate directory. | ||
<platform>/ | Platform version directory, for example 'android-1.6'. All platform versiondirectories contain a similar set of files and subdirectory structure. | ||
data/ | Storage area for default fonts and resource definitions. | ||
images/ | Storage area for default disk images, including the Android system image,the default userdata image, the default ramdisk image, and more. The imagesare used in emulator sessions. | ||
skins/ | A set of emulator skins available for the platform version. Each skin isdesigned for a specific screen resolution. | ||
templates/ | Storage area for file templates used by the SDK development tools. | ||
tools/ | This directory is used only by SDK Tools r7 and below for development tools that are specific tothis platform version—it's not used by SDK Tools r8 and above. | ||
android.jar | The Android library used when compiling applications against this platformversion. | ||
samples/ | Sample code and apps that are specific to platform version. | ||
tools/ | Contains the set of development and profiling tools that are platform-independent, suchas the emulator, the AVD and SDK Manager, ddms, hierarchyviewer and more. The tools inthis directory may be updated at any time (from the Android SDK Tools component),independent of platform releases, whereas the tools in platform-tools/ may be updated basedon the latest platform release. | ||
SDK Readme.txt | A file that explains how to perform the initial setup of your SDK,including how to launch the Android SDK and AVD Manager tool on allplatforms | ||
SDK Manager.exe | Windows SDK only. A shortcut that launches the Android SDK and AVDManager tool, which you use to add components to your SDK. |
Optionally, you might want to add the location of the SDK's
tools/
andplatform-tools
to your PATH
environment variable, to provide easyaccess to the tools.Android Sdk Download
How to update your PATHAdding both
tools/
and platform-tools/
to your PATH lets you runcommand line tools without needing tosupply the full path to the tool directories. Depending on your operating system, you caninclude these directories in your PATH in the following way:- On Windows, right-click on My Computer, and select Properties. Under the Advanced tab, hit the Environment Variables button, and in the dialog that comes up, double-click on Path (under System Variables). Add the full path to the
tools/
andplatform-tools/
directories to the path. - On Linux, edit your
~/.bash_profile
or~/.bashrc
file. Look for a line that sets the PATH environment variable and add the full path to thetools/
andplatform-tools
directories to it. If you don't see a line setting the path, you can add one: - On a Mac OS X, look in your home directory for
.bash_profile
and proceed as for Linux. You can create the.bash_profile
if you don't already have one.
Next Steps
Once you have completed installation, you are ready tobegin developing applications. Here are a few ways you can get started:
Set up the Hello World application
- If you have just installed the SDK for the first time, go to the Hello World tutorial. The tutorial takes you step-by-step through the process of setting up your first Android project, including setting up an Android Virtual Device (AVD) on which to run the application.
Following the Hello World tutorial is an essentialfirst step in getting started with Android development.
Learn about Android
- Take a look at the Dev Guide and the types of information it provides
- Read an introduction to Android as a platform in What is Android?
- Learn about the Android framework and how applications run on it in Application Fundamentals
- Take a look at the Android framework API specification in the Reference tab
Explore the development tools
- Get an overview of the development tools that are available to you
- Read how to develop in Eclipse/ADT or in other IDEs
- Read Developing on a Device to set up anAndroid-powered device to run and test your application.
Follow the Notepad tutorial
- The Notepad Tutorial shows you how to build a full Android application and provides helpful commentary on the Android system and API. The Notepad tutorial helps you bring together the important design and architectural concepts in a moderately complex application.
Following the Notepad tutorial is an excellentsecond step in getting started with Android development.
Explore some code
- The Android SDK includes sample code and applications for each platformversion. You can browse the samples in the Resources tab or download theminto your SDK using the Android SDK and AVD Manager. Once you've downloaded thesamples, you'll find them in
<sdk>/samples/<platform>/
.
Visit the Android developer groups
- Take a look at the Community pages to see a list of Android developers groups. In particular, you might want to look at the Android Developers group to get a sense for what the Android developer community is like.
Troubleshooting
Ubuntu Linux Notes
- If you need help installing and configuring Java on your development machine, you might find these resources helpful:
- Here are the steps to install Java and Eclipse, prior to installing the Android SDK and ADT Plugin.
- If you are running a 64-bit distribution on your development machine, you need to install the
ia32-libs
package usingapt-get:
: - Next, install Java:
- The Ubuntu package manager does not currently offer an Eclipse 3.3 version for download, so we recommend that you download Eclipse from eclipse.org (http://www.eclipse.org/ downloads/). A Java or RCP version of Eclipse is recommended.
- Follow the steps given in previous sections to install the SDK and the ADT plugin.
- If you are running a 64-bit distribution on your development machine, you need to install the
Other Linux Notes
- If JDK is already installed on your development computer, please take a moment to make sure that it meets the version requirements listed in the System Requirements. In particular, note that some Linux distributions may include JDK 1.4 or Gnu Compiler for Java, both of which are not supported for Android development.
Visual Studio include Android SDK Manager che consente di scaricare gli strumenti, le piattaforme e gli altri componenti di Android SDK necessari per sviluppare app Xamarin.Android.Visual Studio includes an Android SDK Manager that you use to download Android SDK tools, platforms, and other components that you need for developing Xamarin.Android apps.
PanoramicaOverview
Questa guida illustra come usare Xamarin Android SDK Manager in Visual Studio e Visual Studio per Mac.This guide explains how to use the Xamarin Android SDK Manager in Visual Studio and Visual Studio for Mac.
Nota
Questa guida si applica a Visual Studio 2019, Visual Studio 2017 e Visual Studio per Mac.This guide applies to Visual Studio 2019, Visual Studio 2017, and Visual Studio for Mac.
Xamarin Android SDK Manager viene installato come componente del carico di lavoroSviluppo di app per dispositivi mobili con .NET e consente di scaricare i componenti Android più recenti necessari per lo sviluppo dell'app Xamarin.Android.The Xamarin Android SDK Manager (installed as part of the Mobile development with .NET workload) helps you download the latest Android components that you need for developing your Xamarin.Android app.Sostituisce lo strumento autonomo SDK Manager di Google, che è stato deprecato.It replaces Google's standalone SDK Manager, which has been deprecated.
RequisitiRequirements
Per usare Xamarin Android SDK Manager sono necessari i componenti seguenti:To use the Xamarin Android SDK Manager, you will need the following:
- Visual Studio 2019 Community, Professional o Enterprise.Visual Studio 2019 Community, Professional, or Enterprise.
- OPPURE Visual Studio 2017 (edizione Community, Professional o Enterprise).OR Visual Studio 2017 (Community, Professional, or Enterprise edition).È necessario Visual Studio 2017 versione 15.7 o versione successiva.Visual Studio 2017 version 15.7 or later is required.
- Strumenti di Visual Studio per Xamarin versione 4.10.0 o successiva (installato come parte del carico di lavoro Sviluppo di applicazioni per dispositivi mobili con .NET).Visual Studio Tools for Xamarin version 4.10.0 or later (installed as part of the Mobile development with .NET workload).
In Xamarin Android SDK Manager è anche necessario Java Development Kit, che viene installato automaticamente con Xamarin.Android.The Xamarin Android SDK Manager also requires the Java Development Kit (which is automatically installed with Xamarin.Android).Sono disponibili numerose alternative di JDK:There are several JDK alternatives to choose from:
- Per impostazione predefinita, Xamarin.Android usa JDK 8, versione necessaria per sviluppare il livello API 24 o un livello superiore. JDK 8 supporta anche i livelli API anteriori al livello 24.By default, Xamarin.Android uses JDK 8, which is required if you are developing for API level 24 or greater (JDK 8 also supports API levels earlier than 24).
- È possibile continuare a usare JDK 7 per attività di sviluppo specifiche per il livello API 23 o un livello precedente.You can continue to use JDK 7 if you are developing specifically for API level 23 or earlier.
- Se si usa Visual Studio 15.8 Preview 5 o versioni successive, è possibile provare a usare la distribuzione Microsoft di Mobile OpenJDK anziché JDK 8.If you are using Visual Studio 15.8 Preview 5 or later, you can try using Microsoft's Mobile OpenJDK Distribution rather than JDK 8.
Importante
Xamarin.Android non supporta JDK 9.Xamarin.Android does not support JDK 9.
SDK ManagerSDK Manager
Per avviare SDK Manager in Visual Studio, selezionare Strumenti -> Android -> Android SDK Manager:To start the SDK Manager in Visual Studio, click Tools > Android > Android SDK Manager:
Android SDK Manager si apre nella schermata Android SDK e strumenti Android,The Android SDK Manager opens in the Android SDKs and Tools screen.in cui sono disponibili due schede – Piattaforme e Strumenti:This screen has two tabs – Platforms and Tools:
La schermata Android SDK e strumenti Android viene descritta più nel dettaglio nelle sezioni seguenti.The Android SDKs and Tools screen is described in more detail in the following sections.
Posizione di Android SDKAndroid SDK location
La posizione di Android SDK è configurata nella parte superiore della schermata Android SDK e strumenti Android, come illustrato nella schermata precedente.The Android SDK location is configured at the top of the Android SDKs and Tools screen, as seen in the previous screenshot.Questo percorso deve essere configurato correttamente per l'esatto funzionamento delle schede Piattaforme e Strumenti.This location must be configured correctly before the Platforms and Tools tabs will function properly.È possibile dover impostare il percorso di Android SDK per uno o più dei motivi seguenti:You may need to set the location of the Android SDK for one or more of the following reasons:
- Android SDK Manager non ha rilevato Android SDK.The Android SDK Manager was unable to locate the Android SDK.
- Android SDK è stato installato in un percorso diverso (percorso non predefinito).You have installed the Android SDK in a alternate (non-default) location.
Per impostare la posizione di Android SDK, fare clic sui puntini di sospensione (…) a destra di Percorso di Android SDK.To set the location of the Android SDK, click the ellipsis (…) button to the far right of Android SDK Location.Si aprirà la finestra di dialogo Sfoglia per cartelle da usare per spostarsi nel percorso di Android SDK.This opens the Browse For Folder dialog to use for navigating to the location of the Android SDK.Nella schermata seguente Android SDK viene selezionato in Programmi (x86)Android:In the following screenshot, the Android SDK under Program Files (x86)Android is being selected:
Quando si fa clic su OK, SDK Manager gestisce Android SDK installato nella posizione selezionata.When you click OK, the SDK Manager will manage the Android SDK that is installed at the selected location.
Scheda StrumentiTools tab
Nella scheda Strumenti viene visualizzato un elenco di strumenti e funzionalità aggiuntive.The Tools tab displays a list of tools and extras.Usare questa scheda per installare gli strumenti di Android SDK, gli strumenti della piattaforma e gli strumenti di compilazione.Use this tab to install the Android SDK tools, platform tools, and build tools.È anche possibile installare l'emulatore Android, il debugger di basso livello, NDK, l'accelerazione HAXM e le librerie di Google Play.Also, you can install the Android Emulator, the low-level debugger (LLDB), the NDK, HAXM acceleration, and Google Play libraries.
Ad esempio, per scaricare il pacchetto relativo all'emulatore Android di Google, selezionare il segno di spunta accanto a Emulatore Android e fare clic sul pulsante Applica modifiche:For example, to download the Google Android Emulator package, click the check mark next to Android Emulator and click the Apply Changes button:
È possibile che venga visualizzato il messaggio Prima di installare il pacchetto seguente è necessario accettarne le condizioni di licenza:A dialog may be shown with the message, The following package requires that you accept its license terms before installing:
Selezionare Accetto se si accettano i termini e le condizioni.Click Accept if you accept the Terms and Conditions.L'indicatore di stato nella parte inferiore della finestra indica lo stato del download e dell'installazione.At the bottom of the window, a progress bar indicates download and installation progress.Al termine dell'installazione, nella scheda Strumenti saranno visualizzati gli strumenti e le funzionalità aggiuntive installati.After the installation completes, the Tools tab will show that the selected tools and extras were installed.
Scheda PiattaformePlatforms tab
La scheda Piattaforme visualizza un elenco di versioni di Platform SDK insieme ad altre risorse (ad esempio immagini di sistema) per ogni piattaforma:The Platforms tab displays a list of platform SDK versions along with other resources (like system images) for each platform:The Platforms tab displays a list of platform SDK versions along with other resources (like system images) for each platform:
In questa schermata vengono elencati la versione Android (ad esempio Android 8.0), il nome in codice (Oreo), il livello API (ad esempio 26) e le dimensioni dei componenti per la piattaforma (ad esempio 1 GB).This screen lists the Android version (such as Android 8.0), the code name (Oreo), the API level (such as 26), and the sizes of the components for that platform (such as 1 GB).La scheda Piattaforme consente di installare componenti per il livello API Android previsto come destinazione.You use the Platforms tab to install components for the Android API level that you want to target.Per altre informazioni sulle versioni di Android e i livelli API, vedere Understanding Android API Levels (Informazioni sui livelli API Android).For more information about Android versions and API levels, see Understanding Android API Levels.
Quando tutti i componenti di una piattaforma sono installati, il nome della piattaforma viene affiancato da un segno di spunta.When all components of a platform are installed, a checkmark appears next to the platform name.Se non tutti i componenti di una piattaforma sono installati, la casella per la piattaforma è compilata.If not all components of a platform are installed, the box for that platform is filled.È possibile espandere una piattaforma per visualizzarne i componenti + (e i componenti installati) facendo clic sulla casella a sinistra della piattaforma.You can expand a platform to see its components (and which components are installed) by clicking the + box to the left of the platform.Fare - clic per annullare l'espansione dell'elenco dei componenti per una piattaforma.Click - to unexpand the component listing for a platform.
Per aggiungere un'altra piattaforma a SDK, selezionare la casella accanto alla piattaforma finché viene visualizzato il segno di spunta per installare tutti i relativi componenti, quindi fare clic su Applica modifiche:To add another platform to the SDK, click the box next to the platform until the checkmark appears to install all of its components, then click Apply Changes:
Per installare solo componenti specifici, fare clic una sola volta sulla casella accanto alla piattaforma.To install only specific components, click the box next to the platform once.È possibile selezionare i singoli componenti necessari:You can then select any individual components that you need:
Si noti che il numero di componenti da installare viene visualizzato accanto al pulsante Applica modifiche.Notice that the number of components to install appears next to the Apply Changes button.Dopo aver fatto clic sul pulsante Applica modifiche viene visualizzata la schermata Accettazione della licenza, come indicato in precedenza.After you click the Apply Changes button, you will see the License Acceptance screen as shown earlier.Selezionare Accetto se si accettano i termini e le condizioni.Click Accept if you accept the Terms and Conditions.È possibile che questa finestra di dialogo sia visualizzata più di una volta se i componenti da installare sono più di uno.You may see this dialog more than one time when there are multiple components to install.L'indicatore di stato nella parte inferiore della finestra indica lo stato del download e dell'installazione.At the bottom of the window, a progress bar will indicate download and installation progress.Al termine del download e dell'installazione (l'operazione può richiedere molti minuti, a seconda del numero di componenti da scaricare), i componenti aggiunti vengono contrassegnati da un segno di spunta ed elencati con lo stato Installato.When the download and installation process completes (this can take many minutes, depending on how many components need to be downloaded), the added components are marked with a checkmark and listed as Installed.
Selezione del repositoryRepository selection
Per impostazione predefinita Android SDK Manager scarica i componenti e gli strumenti della piattaforma da un repository gestito da Microsoft.By default, the Android SDK Manager downloads platform components and tools from a Microsoft-managed repository.Se è necessario accedere a piattaforme e strumenti sperimentali alfa/beta non ancora disponibili nel repository di Microsoft, è possibile impostare SDK Manager in modo che usi il repository di Google.If you need access to experimental alpha/beta platforms and tools that are not yet available in the Microsoft repository, you can switch the SDK Manager to use Google's repository.Per questa impostazione fare clic sull'icona a forma di ingranaggio nell'angolo inferiore destro e selezionare Repository > Google (non supportato):To make this switch, click the gear icon in the lower right-hand corner and select Repository > Google (Unsupported):
Quando è selezionato il repository di Google è possibile che nella scheda Piattaforme siano visibili pacchetti non disponibili in precedenza.When the Google repository is selected, additional packages may appear in the Platforms tab that were not available previously.(Nella schermata precedente, Android SDK Platform 28 è stato aggiunto passando al repository di Google.) Tieni presente che l'uso del repository di Google non è supportato e pertanto non è raccomandato per lo sviluppo quotidiano.(In the above screenshot, Android SDK Platform 28 was added by switching to the Google repository.) Keep in mind that use of the Google repository is unsupported and is therefore not recommended for everyday development.
Mac Install Android Sdk
Per tornare al repository di piattaforme e strumenti supportato, fare clic su Microsoft (scelta consigliata).To switch back to the supported repository of platforms and tools, click Microsoft (Recommended).L'elenco di pacchetti e strumenti viene ripristinato con la selezione predefinita.This restores the list of packages and tools to the default selection.
RequisitiRequirements
Per usare Xamarin Android SDK Manager sono necessari i componenti seguenti:To use the Xamarin Android SDK Manager, you will need the following:
- Visual Studio per Mac 7.5 (o versione successiva).Visual Studio for Mac 7.5 (or later).
In Xamarin Android SDK Manager è anche necessario Java Development Kit, che viene installato automaticamente con Xamarin.Android.The Xamarin Android SDK Manager also requires the Java Development Kit (which is automatically installed with Xamarin.Android).Sono disponibili numerose alternative di JDK:There are several JDK alternatives to choose from:
- Per impostazione predefinita, Xamarin.Android usa JDK 8, versione necessaria per sviluppare il livello API 24 o un livello superiore. JDK 8 supporta anche i livelli API anteriori al livello 24.By default, Xamarin.Android uses JDK 8, which is required if you are developing for API level 24 or greater (JDK 8 also supports API levels earlier than 24).
- È possibile continuare a usare JDK 7 per attività di sviluppo specifiche per il livello API 23 o un livello precedente.You can continue to use JDK 7 if you are developing specifically for API level 23 or earlier.
- Se si usa Visual Studio per Mac 7.7 o versioni successive, è possibile provare a usare la distribuzione Microsoft di Mobile OpenJDK anziché JDK 8.If you are using Visual Studio for Mac 7.7 or later, you can try using Microsoft's Mobile OpenJDK Distribution rather than JDK 8.
Importante
Xamarin.Android non supporta JDK 9.Xamarin.Android does not support JDK 9.
SDK ManagerSDK Manager
Per avviare SDK Manager in Visual Studio per Mac, selezionare Strumenti -> SDK Manager:To start the SDK Manager in Visual Studio for Mac, click Tools > SDK Manager:
Android SDK Manager si apre nel finestra Preferenze, che contiene tre schede Piattaforme, Strumenti e Percorsi:The Android SDK Manager opens in the Preferences window, which contains three tabs, Platforms, Tools, and Locations:
Le schede di Android SDK Manager sono descritte nelle sezioni seguenti.The tabs of the Android SDK Manager are described in the following sections.
Scheda PercorsiLocations tab
Nella scheda Percorsi sono disponibili tre impostazioni per la configurazione di Android SDK, Android NDK e Java SDK (JDK).The Locations tab has three settings for configuring the locations of the Android SDK, Android NDK, and the Java SDK (JDK).Questi percorsi devono essere configurati correttamente per l'esatto funzionamento delle schede Piattaforme e Strumenti.These locations must be configured correctly before the Platforms and Tools tabs will function properly.
All'avvio, SDK Manage determina automaticamente il percorso per ogni pacchetto installato e indica che è stato Trovato inserendo un'icona di spunta verde accanto al percorso:When the SDK Manager starts, it automatically determines the path for each installed package and indicates that it was Found by placing a green checkmark icon next to the path:
Fare clic sul pulsante Ripristina valori predefiniti perché SDK Manager esegua la ricerca di SDK, NDK e JDK in percorsi predefiniti.Click the Reset to Defaults button to cause the SDK Manager to look for the SDK, NDK, and JDK at their default locations.
In genere, si usa la scheda Percorsi per modificare il percorso di Android SDK e/o Java JDK.Typically, you use the Locations tab to modify the location of the Android SDK and/or the Java JDK.Non è necessario installare NDK per sviluppare app Xamarin.Android. NDK viene usato solo quando è necessario sviluppare parti di app che usano linguaggi di codice nativo, ad esempio C e C++.You do not need to install the NDK to develop Xamarin.Android apps – the NDK is used only when you need to develop parts of your app using native-code languages such as C and C++.
Scheda StrumentiTools tab
Nella scheda Strumenti viene visualizzato un elenco di strumenti e funzionalità aggiuntive.The Tools tab displays a list of tools and extras.Usare questa scheda per installare gli strumenti di Android SDK, gli strumenti della piattaforma e gli strumenti di compilazione.Use this tab to install the Android SDK tools, platform tools, and build tools.È anche possibile installare l'emulatore Android, il debugger di basso livello, NDK, l'accelerazione HAXM e le librerie di Google Play.Also, you can install the Android Emulator, the low-level debugger (LLDB), the NDK, HAXM acceleration, and Google Play libraries.
Sdk Manager Download
Ad esempio, per scaricare il pacchetto relativo all'emulatore Android di Google, selezionare il segno di spunta accanto a Emulatore Android e fare clic sul pulsante Applica modifiche:For example, to download the Google Android Emulator package, click the check mark next to Android Emulator and click the Apply Changes button:
È possibile che venga visualizzato il messaggio Prima di installare il pacchetto seguente è necessario accettarne le condizioni di licenza:A dialog may be shown with the message, The following package requires that you accept its license terms before installing:
Selezionare Accetto se si accettano i termini e le condizioni.Click Accept if you accept the Terms and Conditions.L'indicatore di stato nella parte inferiore della finestra indica lo stato del download e dell'installazione.At the bottom of the window, a progress bar indicates download and installation progress.Al termine dell'installazione, nella scheda Strumenti saranno visualizzati gli strumenti e le funzionalità aggiuntive installati.After the installation completes, the Tools tab will show that the selected tools and extras were installed.
Scheda PiattaformePlatforms tab
La scheda Piattaforme visualizza un elenco di versioni di Platform SDK insieme ad altre risorse (ad esempio immagini di sistema) per ogni piattaforma:The Platforms tab displays a list of platform SDK versions along with other resources (like system images) for each platform:The Platforms tab displays a list of platform SDK versions along with other resources (like system images) for each platform:
In questa schermata vengono elencati la versione Android (ad esempio Android 8.1), il nome in codice (Oreo), il livello API (ad esempio 27) e le dimensioni dei componenti per la piattaforma (ad esempio 1 GB).This screen lists the Android version (such as Android 8.1), the code name (Oreo), the API level (such as 27), and the sizes of the components for that platform (such as 1 GB).La scheda Piattaforme consente di installare componenti per il livello API Android previsto come destinazione.You use the Platforms tab to install components for the Android API level that you want to target.Per altre informazioni sulle versioni di Android e i livelli API, vedere Understanding Android API Levels (Informazioni sui livelli API Android).For more information about Android versions and API levels, see Understanding Android API Levels.
Quando tutti i componenti di una piattaforma sono installati, il nome della piattaforma viene affiancato da un segno di spunta.When all components of a platform are installed, a checkmark appears next to the platform name.Se non tutti i componenti di una piattaforma sono installati, la casella per la piattaforma è compilata.If not all components of a platform are installed, the box for that platform is filled.Fare clic sulla casella freccia a sinistra della piattaforma per espandere una piattaforma e visualizzare i relativi componenti e i componenti installati.You can expand a platform to see its components (and which components are installed) by clicking the arrow to the left of the platform.Fare clic su freccia giù per comprimere l'elenco dei componenti di una piattaforma.Click down arrow to unexpand the component listing for a platform.
Per aggiungere un'altra piattaforma a SDK, selezionare la casella accanto alla piattaforma finché viene visualizzato il segno di spunta per installare tutti i relativi componenti, quindi fare clic su Applica modifiche:To add another platform to the SDK, click the box next to the platform until the checkmark appears to install all of its components, then click Apply Changes:
Android Sdk Location Mac
Per installare solo alcuni componenti, fare clic una sola volta sulla casella accanto alla piattaforma.To install only some components, click the box next to the platform once.È possibile selezionare i singoli componenti necessari:You can then select any individual components that you need:
Si noti che il numero di componenti da installare viene visualizzato accanto al pulsante Applica modifiche.Notice that the number of components to install appears next to the Apply Changes button.Dopo aver fatto clic sul pulsante Applica modifiche viene visualizzata la schermata Accettazione della licenza, come indicato in precedenza.After you click the Apply Changes button, you will see the License Acceptance screen as shown earlier.Selezionare Accetto se si accettano i termini e le condizioni.Click Accept if you accept the Terms and Conditions.È possibile che questa finestra di dialogo sia visualizzata più di una volta se i componenti da installare sono più di uno.You may see this dialog more than one time when there are multiple components to install.L'indicatore di stato nella parte inferiore della finestra indica lo stato del download e dell'installazione.At the bottom of the window, a progress bar will indicate download and installation progress.Al termine del download e dell'installazione (l'operazione può richiedere molti minuti, a seconda del numero di componenti da scaricare), i componenti aggiunti vengono contrassegnati da un segno di spunta ed elencati con lo stato Installato.When the download and installation process completes (this can take many minutes, depending on how many components need to be downloaded), the added components are marked with a checkmark and listed as Installed.
Selezione del repositoryRepository selection
Per impostazione predefinita Android SDK Manager scarica i componenti e gli strumenti della piattaforma da un repository gestito da Microsoft.By default, the Android SDK Manager downloads platform components and tools from a Microsoft-managed repository.Se è necessario accedere a piattaforme e strumenti sperimentali alfa/beta non ancora disponibili nel repository di Microsoft, è possibile impostare SDK Manager in modo che usi il repository di Google.If you need access to experimental alpha/beta platforms and tools that are not yet available in the Microsoft repository, you can switch the SDK Manager to use Google's repository.Per questa impostazione fare clic sull'icona a forma di ingranaggio nell'angolo inferiore destro e selezionare Repository > Google (non supportato):To make this switch, click the gear icon in the lower right-hand corner and select Repository > Google (Unsupported):
Quando è selezionato il repository di Google è possibile che nella scheda Piattaforme siano visibili pacchetti non disponibili in precedenza.When the Google repository is selected, additional packages may appear in the Platforms tab that were not available previously.(Nella schermata precedente, Android SDK Platform 28 è stato aggiunto passando al repository di Google.) Tieni presente che l'uso del repository di Google non è supportato e pertanto non è raccomandato per lo sviluppo quotidiano.(In the above screenshot, Android SDK Platform 28 was added by switching to the Google repository.) Keep in mind that use of the Google repository is unsupported and is therefore not recommended for everyday development.
Per tornare al repository di piattaforme e strumenti supportato, fare clic su Microsoft (scelta consigliata).To switch back to the supported repository of platforms and tools, click Microsoft (Recommended).L'elenco di pacchetti e strumenti viene ripristinato con la selezione predefinita.This restores the list of packages and tools to the default selection.
RiepilogoSummary
In questa guida è stato spiegato come installare e usare lo strumento Xamarin Android SDK Manager in Visual Studio e Visual Studio per Mac.This guide explained how to install and use the Xamarin Android SDK Manager tool in Visual Studio and Visual Studio for Mac.
Collegamenti correlatiRelated Links
- Understanding Android API Levels (Informazioni sui livelli API Android)Understanding Android API levels