Android Question Android 9 problem with android.os.SystemProperties

[menneaduplo]

Hi guys

the code below does not work on Android 9.
The error appears:
java.lang.RuntimeException: java.lang.IllegalAccessException: void android.os.SystemProperties.<init>() is not accessible from java.lang.Class<anywheresoftware.b4a.agraham.reflection.Reflection>

Can anyone help me?

Sub GetManufacturerSerialNumber As String
    Dim sn As String
    Dim r As Reflector
    Dim m As Object
    Dim Types(1) As String

    Types(0) = "java.lang.String"
    r.target = r.CreateObject("android.os.SystemProperties")

    m = r.GetMethod("get", Types)
    sn = r.InvokeMethod(r.Target,m,Array("ril.serialnumber"))
   
    Return sn
End Sub

Thank you!
Mennea

 

[Erel]

You are trying to access a private API. It is no longer possible.

The allowed way to get a unique id is with PhoneId from the Phone library. It requires a sensitive permission.

Might be useful: https://www.b4x.com/android/forum/threads/advertising-id.101050/#content

 

[menneaduplo]

Thanks Erel,
i used PhoneId.
Mennea