how to import android.os.SystemProperties

Question

I am trying to use

SystemProperties.get();

but not able to import the android.os.SystemProperties package bit of googling tells me its hidden, is there any way around this ?

try reading this question: [http://stackoverflow.com/questions/2641111/where-is-android-os-systemproperties](http://stackoverflow.com/questions/2641111/where-is-android-os-systemproperties) — thepoosh, May 02 '12 at 07:53
How about the solution here: https://stackoverflow.com/questions/13564281/android-os-servicemanager-not-found-while-building — MMJ, Jun 18 '19 at 12:57

score 11 · Accepted Answer · edited Jun 14 '19 at 07:53

SystemProperties is a hidden class that is only available to platform-level code. You could try to access it via reflection, but this is not recommended.

It is easy to confuse Android's SystemProperties class with the old-style Java way of doing properties, namely java.lang.System.getProperty(). Note that these are two totally separate systems. An important difference is that the Java mechanism works only within a given process, whereas the Android SystemProperties works across processes.

As an app developer, although you don't normally get a Java-based API into Android's Android SystemProperties, you can inspect the SystemProperties at the command-line using

adb shell getprop

score 2 · Answer 2 · answered May 02 '12 at 07:54

2

You can import import android.os.Bundle; and then you can access System properties using System.getProperty("os.name");

you can access any property by using System.getProperty('Property name');

answered May 02 '12 at 07:54

Anil Jadhav

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SystemProperties.get(); I am still not able to use this but I am able to use System.getProperty("os.name"); as you wrote – Sunny Kumar Aditya May 02 '12 at 08:56
1

you can use **System.getProperties();** to access all properties – Anil Jadhav May 02 '12 at 09:02
To get a particular property: use System.getProperties().getProperty() – Cesar Maiorino Oct 26 '12 at 15:22
2

This doesn't work for me. adb shell getprop shows that "wifi.interface" property is set to wlan0 but System.getProperty("wifi.interface") is null. – Josh Dec 18 '14 at 21:33
Not sure if this still works now... – Amine Zaine Oct 05 '22 at 12:47

score 0 · Answer 3 · answered Nov 18 '14 at 07:12

0

add 'layoutlib.jar" to your project's Java Build Path, and then, you can use "import android.os.SystemProperties;"

answered Nov 18 '14 at 07:12

moasm

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could you please provide a link for that layoutlib.jar? – Milad Faridnia Feb 02 '15 at 06:11
this iink might help : http://www.java2s.com/Code/Jar/l/Downloadlayoutlibapi2220jar.htm – Milad Faridnia Feb 02 '15 at 06:16

score 0 · Answer 4 · answered Dec 26 '14 at 02:41

0

if want to get device property, for OS information you may check http://developer.android.com/reference/android/os/Build.html

just need to import android.os.Build;

answered Dec 26 '14 at 02:41

and0421

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score 0 · Answer 5 · answered Jun 18 '19 at 14:03

0

One thing you can try is, comment the

LOCAL_SDK_VERSION := current

in Android.mk. Using this way you can able to call hidden apis from the app

answered Jun 18 '19 at 14:03

MMJ

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score -1 · Answer 6 · answered May 18 '19 at 12:02

One hacky way is to create your own SystemProperties class on your classpath so that your code compiles and works and then exclude it from your build. If class then exists on android device, it works fine. I do this quite often for very specific situations, but I wouldn't recommend this on commercial application for various versions and devices.

You can base it on source code class and just leave api that you need.

Example class:

package android.os;

public class SystemProperties {

    public static String get(String key) {
        return "";
    }

}

Then you just need exclude that class from your android/sourcesets/main in gradle file, for example:

sourceSets {
    main {
        java {
            exclude 'android/**/*.java'
        }
    }
}

how to import android.os.SystemProperties

6 Answers6

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