How can you detect a dual-core cpu on an Android device from code?

Question

I\'ve run into a problem that appears to affect only dual-core Android devices running Android 2.3 (Gingerbread or greater. I\'d like to give a di

Answer 1

Here's my solution, in Kotlin, based on this one:

        /**
         * return the number of cores of the device.
         * based on : http://stackoverflow.com/a/10377934/878126
         */
        private var coresCount: Int = 0
            get() {
                if (field > 0)
                    return field
                class CpuFilter : FileFilter {
                    override fun accept(pathname: File): Boolean {
                        return Pattern.matches("cpu[0-9]+", pathname.name)
                    }
                }
                try {
                    val dir = File("/sys/devices/system/cpu/")
                    val files = dir.listFiles(CpuFilter())
                    if (files != null) {
                        field = files.size
                        return field
                    }
                } catch (ignored: Exception) {
                }
                field = max(1, Runtime.getRuntime().availableProcessors())
                return field
            }