Is it possible to detect if an user is running Android N?
I have a Nexus 6 with the Android N Developer Preview. If I try to get the build version with Build.VERSION.SDK_INT, it returns 23 which is equal to Android Marshmallow.
4 Answers
Quoting myself:
Following the approach that Google used for the M Developer Preview, you can check
Build.VERSION.CODENAMEinstead:
public static boolean iCanHazN() {
return("N".equals(Build.VERSION.CODENAME));
}
I haven't looked at Build.VERSION.RELEASE, as suggested by zgc7009's comment, though that too may be a possibility.
Also, if you are reading this from the far future, where Android N has shipped in final form, you should be able to use Build.VERSION.SDK_INT and Build.VERSION_CODES.N. The above hack is due to the idiosyncrasies of how Google handles these developer previews.
2 Comments
the_new_mr
It seems CODENAME is always "REL" for a release OS version. We ended going with the solution I posted here.
eC Droid
idiosyncrasies where do you get these words?I would recommend using Integer value for checking Android version rather than String
public boolean isAndroidN() {
return Build.VERSION.SDK_INT == Build.VERSION_CODES.N;
}
Just remember it's necessary to have compileSdkVersion to 24 or higher in manifests.xml:
compileSdkVersion 24
1 Comment
Mygod
Note that for O preview,
public static final int O = 10000; However Build.VERSION.SDK_INT = 25.Approach 1: (recommended) Use support library android.support.v4.os.BuildCompat.isAtLeastN.
Approach 2: Use this as the "real" version code: Build.VERSION.SDK_INT < 23 || Build.VERSION.PREVIEW_SDK_INT == 0 ? Build.VERSION.SDK_INT : Build.VERSION.SDK_INT + 1.
Comments
I found that the behaviour of Build.VERSION.RELEASE and Build.VERSION.CODENAME is quite different depending on whether it's a full production release of Android OS or a developer preview. We went with the following mechanism. You can't rely on just one value if you want to account for more than one scenario.
This is what I found was the case for a Galaxy S7 running a production release of Nougat and a Nexus 5X running O DP1.
Galaxy S7 Nougat Build.VERSION.BASE_OS: Build.VERSION.CODENAME: REL Build.VERSION.INCREMENTAL: G930FXXU1DQB3 Build.VERSION.PREVIEW_SDK_INT: 0 Build.VERSION.RELEASE: 7.0 Build.VERSION.SDK_INT: 24 Build.VERSION.SECURITY_PATCH: 2017-01-01
Nexus 5X O Build.VERSION.BASE_OS: Build.VERSION.CODENAME: O Build.VERSION.INCREMENTAL: 3793265 Build.VERSION.PREVIEW_SDK_INT: 1 Build.VERSION.RELEASE: O Build.VERSION.SDK_INT: 25 Build.VERSION.SECURITY_PATCH: 2017-03-05
// release builds of Android (i.e. not developer previews) have a CODENAME value of "REL"
// check this. if it's REL then you can rely on value of SDK_INT (SDK_INT is inaccurate for DPs
// since it has the same value as the previous version of Android)
// if it's not REL, check its value. it will have a letter denoting the Android version (N for Nougat, O for... er... O and so on)
boolean laterThanNougat = false;
if(Build.VERSION.CODENAME.equals("REL")) {
Log.i(TAG, "This is a release build");
// since this is a release build, we can rely on value of SDK_INT
if (android.os.Build.VERSION.SDK_INT > 25) {
Log.i(TAG, "This is later than Nougat");
laterThanNougat = true;
} else {
Log.i(TAG, "This is Nougat or before");
}
} else {
Log.i(TAG, "This is NOT a release build");
// since this is not a release build, we can't rely on value of SDK_INT. must check codename again
if(Build.VERSION.CODENAME.compareTo("N") > 0) {
Log.i(TAG, "This is later than Nougat");
laterThanNougat = true;
} else {
Log.i(TAG, "This is Nougat or before");
}
}
Build.VERSION.RELEASE. It will return a String representation of the version running on the device; I am 99% sure. Haven't done this in a while.Build.VERSION.RELEASEis returning "N"