Difference between API Level and SDK Version [duplicate]

Question

I'm new to Android developing, and I would like to know what is the connection or difference between the version and the API level. What is each one referring to? And what does it mean when I decide to develop some app for API 14 or for android version 4.0?

Or is one a subset of the other? I simply didn't get the difference, and why are there two counters?

Thanks

Answer 1

Well, API is for development, so the changes in new API version are more "inside". But new version of Android usually adds more features for users, that are "visible".

Check this page http://developer.android.com/guide/appendix/api-levels.html, there is a table that shows relations between versions and API levels.

Answer 2

Multiple versions of Android can have the same API level but the API as an integer allows developers to more easily target devices. The chart below will give you an idea of their relationship but only the documentation contains exhaustive listings of the API levels and how they differ from each other.

Source: developer.android.com.

Because this data is gathered from the new Google Play Store app, which supports Android 2.2 and above, devices running older versions are not included. However, in August, 2013, versions older than Android 2.2 accounted for about 1% of devices that checked in to Google servers (not those that actually visited Google Play Store).

Answer 3

In addition to the answers provided, there is a detailed explanation of the Android Platform usage on Wikipedia (permalink).

This table will give you a highlight of Android API vs Version.

Answer 4

A device running Android with version X will usually support applications written for API X and below.

This means if you want your app to support API 8, devices ver 8 will be able to run it, but also devices of ver 9, 10, 11, etc.

Here is the table which explains the ties between the numbers: http://developer.android.com/guide/appendix/api-levels.html

Answer 5

In a short note:

Main difference between them is that API level for android application development framework API on the other hand android version is maintained to mention new features to user level.

In details:

API Level is an integer value that uniquely identifies the framework API revision offered by a version of the Android platform.

The Android platform provides a framework API that applications can use to interact with the underlying Android system. The framework API consists of:

• A core set of packages and classes
• A set of XML elements and attributes for declaring a manifest file
• A set of XML elements and attributes for declaring and accessing resources
• A set of Intents
• A set of permissions that applications can request, as well as permission enforcements included in the system

For more details you can visit this link: https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels

Answer 6

API Level is an integer value that uniquely identifies the framework API revision offered by a version of the Android platform.

You can have a new Android version with the same API release as the previous version.

Check out https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels