How can I overcome the property length limitation of the “adb shell setprop”

Question

I get an error when I try set a value for property with name >= 32 characters

adb shell setprop 01234567890123456789012345678901 VALUE

Erro

Answer 1

It looks like there would be no way to bypass this limitation. I see the same rules in android java sources.

public class SystemProperties
{
    public static final int PROP_NAME_MAX = 31;
    public static final int PROP_VALUE_MAX = 91;

    ...
}

Answer 2

I also faced same problem. as the answer mentioned above it's not possible use the NAME which longer than 31. so i change package name to shorter than 31 and it works now.

Answer 3

Maybe using redirection?

Set small property which will hold file name for conf file:

setprop confFileName "myConf.yml"

in that conf file have all your big property names and values.

Answer 4

Update: The system property name limit of 32 characters was removed in Android O. You are free to have longer names now.

public class SystemProperties {
    /**
     * Android O removed the property name length limit, but com.amazon.kindle 7.8.1.5
     * uses reflection to read this whenever text is selected (http://b/36095274).
     */
    public static final int PROP_NAME_MAX = Integer.MAX_VALUE;
    public static final int PROP_VALUE_MAX = 91;
    ...
}