How do I know if an application process is 32-bit or 64-bit programmatically in Android lollipop?
As we all know, there is support for Android 5.0.64bit. I have a very simple question. Can we programmatically check in which mode any application is running, i.e. 32-bit or 64-bit? For example: I have a Facebook app running on my Nexus 9, so I can check my Android app usage if the Facebook app process is running in 32 bit mode or 64 bit mode?
Thanks in advance!
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Try it System.getProperty("os.arch")
. I haven't tried this on 64-bit Android, but it should return something like "aarch64" in the case of a 64-bit device.
http://developer.android.com/reference/java/lang/System.html#getProperty(java.lang.String)
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On the Nexus 5x
String arch = System.getProperty("os.arch");
returns
armv8l
it is not aarch64
and my code broke. Nevertheless,
root@bullhead:/ # uname -m
aarch64
root@bullhead:/ # getprop ro.product.cpu.abilist
arm64-v8a,armeabi-v7a,armeabi
Wired. So I changed my code to
boolean is64 = (android.os.Build.VERSION.SDK_INT >= 21) && System.getProperty("ro.product.cpu.abilist").contains("64");
Updated 2016-02-11
In Samsung Samsung Galaxy S5 Neo, Android 5.1.1
String arch = System.getProperty("os.arch");
returns aarch64
, but it's not a 64-bit device !!!
ro.product.cpu.abilist
returns armeabi-v7a,armeabi
bool is64Bit = System.getProperty("ro.product.cpu.abilist").contains("64");
is the only way to check.
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What makes you think your device is not 64-bit? the specifications for the phone indicate that it uses the Exynos 7 Octa 7580 which is arm8 and 64-bit.
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