Interested in publishing your app on Android Market?
Go to Android Market »Publishing an application means testing it, packaging it appropriately, and making it available to users of Android-powered mobile devices for download or sideload.
If you've followed the steps outlined in Preparing to Publish Your Applications, the result of the process is a compiled .apk that is signed with your release private key. Inside the .apk, the application is properly versioned and any MapView elements reference a Maps API Key that you obtained by registering the MD5 fingerprint of the same certificate used to sign the .apk. Your application is now ready for publishing.
The sections below provide information about publishing your Android application to mobile device users.
Android Market is a hosted service that makes it easy for users to find and download Android applications to their Android-powered devices, and makes it easy for developers to publish their applications to Android users.
To publish your application on Android Market, you first need to register with the service using your Google account and agree to the terms of service. Once you are registered, you can upload your application to the service whenever you want, as many times as you want, and then publish it when you are ready. Once published, users can see your application, download it, and rate it using the Market application installed on their Android-powered devices.
To register as an Android Market developer and get started with publishing, visit the Android Market:
http://market.android.com/publish
If you plan to publish your application on Android Market, you must make sure that it meets the requirements listed below, which are enforced by the Market server when you upload the application.
Requirements enforced by the Android Market server:
android:versionCode
and an
android:versionName
attribute in the
<manifest>
element of its manifest. The server uses the android:versionCode
as
the basis for identifying the application internally and handling updates, and
it displays the android:versionName
to users as the application's
version.android:icon
and an
android:label
attribute in the <application>
element of its manifest.At any time after publishing an application on Android Market, you can upload and publish an update to the same application package. When you publish an update to an application, users who have already installed the application will automatically receive a notification that an update is available for the application. They can then choose to update the application to the latest version.
Before uploading the updated application, be sure that you have incremented
the android:versionCode
and android:versionName
attributes in the <manifest>
element of the manifest file. Also, the package name must be the same and the
.apk must be signed with the same private key. If the package name and signing
certificate do not match those of the existing version, Market will
consider it a new application and will not offer it to users as an update.
Android Market offers a licensing service that lets you enforce licensing policies for paid applications that you publish through Android Market. With Android Market Licensing, your applications can query Android Market at run time to obtain their licensing status for the current user, then allow or disallow further use as appropriate. Using the service, you can apply a flexible licensing policy on an application-by-application basis — each application can enforce its licensing status in the way most appropriate for it.
Any application that you publish through Android Market can use the Android Market Licensing Service. The service uses no dedicated framework APIs, you can add licensing to any legacy application that uses a minimum API level of 3 or higher.
For complete information about Android Market Licensing Service and how to use it in your application, see Licensing Your Applications.
Android-powered devices include a preinstalled Market application that gives users access to the Android Market site. From Market, users can browse or search available applications, read ratings and reviews, and download/install applications.
You can launch the Market application from another Android application by sending an Intent to the system. You might want to do this, for example, to help the user locate and download an update to an installed application, or to let the user know about related applications that are available for download.
To launch Market, you send an ACTION_VIEW Intent, passing a Market-handled URI string as the Intent data. In most cases, your application would call startActivity() to send the ACTION_VIEW Intent with the Market-handled URI.
The URI that you supply with the Intent lets the system route the intent properly and also expresses the type of action that you want Market to perform after launch. Currently, you can have Market take these actions:
Your application can initiate a search on Android Market for applications that match the query parameters that you provide. To do so, your application sends an ACTION_VIEW Intent that includes a URI and query parameters in this format:
market://search?q=<paramtype>:<value>
Searches on Android Market
When you initiate a search, Android Market returns results from matches in the public metadata supplied by developers in their Android Market profiles or application publishing information, but not from the developer's private account or from the certificate used to sign the application.
Using this URI format, you can search for applications by:
The table at the bottom of this page specifies the paramtypes
and values
that correspond to each of these types of search.
When you send an intent to initiate a search for applications, Market sends the search query to the server and displays the result. To the user, the experience is something like this:
In Android Market, every application has a Details page that provides an overview of the application for users. For example, the page includes a short description of the app and screen shots of it in use, if supplied by the developer, as well as feedback from users and information about the developer. The Details page also includes an "Install" button that lets the user trigger the download/purchase of the application.
If you want to refer the user to a specific appplication, your application can take the user directly to the application's Details page. To do so, your application sends an ACTION_VIEW Intent that includes a URI and query parameter in this format:
market://details?id=<packagename>
In this case, the packagename
parameter is target application's
fully qualified package name, as declared in the package
attribute
of the manifest
element in the application's manifest file. For example:
market://details?id=com.example.android.jetboy
The table below provides a list of URIs and actions currently supported by the Market application.
Note that these URIs work only when passed as Intent data — you can't currently load the URIs in a web browser, either on a desktop machine or on the device.
For this Result | Pass this URI with the ACTION_VIEW Intent | Comments |
---|---|---|
Display the Details screen for a specific application, as identified by the app's fully qualified package name. | http://market.android.com/details?id=<packagename>
ormarket://details?id=<packagename> |
Note that the package name that you specify is not specific to any version of an application. Therefore, Market always displays the Details page for the latest version of the application. |
Search for an application by its fully qualified Java package name and display the result. | http://market.android.com/search?q=pname:<package> ormarket://search?q=pname:<package> |
Searches only the Java package name of applications. Returns only exact matches. |
Search for applications by developer name and display the results. | http://market.android.com/search?q=pub:<Developer Name>
ormarket://search?q=pub:<Developer Name> |
Searches only the "Developer Name" fields of Market public profiles. Returns exact matches only. |
Search for applications by substring and display the results. | http://market.android.com/search?q=<substring> or
market://search?q=<substring> |
Searches all public fields (application title, developer name, and application description) for all applications. Returns exact and partial matches. |
Search using multiple query parameters and display the results. | Example:
|
Returns a list of applications meeting all the supplied parameters. |