get free or used ram in android

Asked Jan 13 '16 at 12:47

Active Jan 13 '16 at 13:04

Viewed 441 times

I want to get total and used/free ram, my code works fine on all android versions for getting total ram. But I want to get either free or used ram. How do I do that?? There are other questions like this but none of them works on all API levels. the documentation says memoryinfo class was added in API 16.

private String getTotalRAM() {
    RandomAccessFile reader = null;
    String load = null;
    long total = 0;
    try {
        reader = new RandomAccessFile("/proc/meminfo", "r");
        load = reader.readLine().replaceAll("\\D+", "");
        ;
        total = Integer.parseInt(load) / 1024;
    } catch (IOException ex) {
        ex.printStackTrace();
    }
    return total + " MB";
}

edited Jan 13 '16 at 13:04

Mykola

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asked Jan 13 '16 at 12:47

user5784363

1

Which documentation are you checking? Here it says it has been there since API 1: http://developer.android.com/reference/android/app/ActivityManager.MemoryInfo.html – Daniel Zolnai Jan 13 '16 at 13:37
The property `totalMem` was added in API level 16, but `availMem` was there since API level 1. Maybe you could try that one? – Daniel Zolnai Jan 13 '16 at 13:39
and how about free mem? – user5784363 Jan 13 '16 at 13:40
Free means the same as available :) But this is a quite complex subject. I recommend reading this SO answer for better understanding: http://stackoverflow.com/a/2299813/1395437 – Daniel Zolnai Jan 13 '16 at 13:46
you are a life saver. – user5784363 Jan 13 '16 at 13:50
can you give me an example of saving current date and setting it in textview using sharedpreferences? – user5784363 Jan 13 '16 at 13:50
First try to do it yourself and if you are stuck then post a StackOverflow question with your code :) – Daniel Zolnai Jan 13 '16 at 13:58

get free or used ram in android

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