Hi. ketai library related.
import ketai.net.wifidirect.;
import ketai.net.;
import ketai.ui.*;KetaiNet.getIP();
KetaiNet.getIP (); The function does not work properly.
It does not get the correct IP address value.
Android version 8.0: works fine
Android version 9.0: Strange IP address
Is there any way to solve it?
@GWAK ===
can you put the code you are using?
can you put the console error message (if it exists)?
what do you mean by Android version? - Is it compiling with or running on a device with 8 or 9?
how is your Manifest?
Are you an angel?
Thank you for your kind answers.
import android.os.Bundle;
import ketai.net.;
import ketai.ui.;
import oscP5.;
import netP5.;
void setup()
{
fullScreen();
orientation(PORTRAIT);
println(KetaiNet.getIP());
}
Please take a look at the picture of the hardware.
The Wi-Fi module constitutes the network and the smart phone is connected.
(picture)The current IP address is the IP address given on the actual network.
(source code result : )
Smartphone Android version 6.0 ~ 8.0: 192.168.4.2
Smartphone Android version 9.0: 192.0.0.5
The cause of the phenomenon seems to be the phenomenon after updating the Android version.
I would like to know IP address(smartphone) at the moment. Is there a way?
What value do you get? “0.0.0.0”
How are you setting up to use ver 9? Is that through your manifest?
I confirm it works in ver 8 (Api 26 (?) ) and I enabled internet and access_network_state. I might only need one of them as i did not check the docs.
Kf
@GWAK ===
so you are running this code on a device with android 9 installed. Now, what about your Manifest?Is uour SDK updated to this API ?
Dear akenaton, kfrajer
Example1)
target SDK : API9 / Smartphone Android 9.0 :: Strange value ip address
Example2)
target SDK : API9 / Smartphone Android 8.0 :: Correct ip address
Example3)
target SDK : API8.1 / Smartphone Android 9.0 :: Strange value ip address
Example4)
target SDK : API7.0 / Smartphone Android 9.0 :: Strange value ip address
in conclusion,
I think it’s a fatal error on Android version 9.0(Smart Phone).
Do not you guys do that, too?
I solved it.
Source code
if (!inetAddress.isLoopbackAddress() && thing == "0.0.0.0" && inetAddress.getHostAddress().matches( "\\b(?:\\d{1,3}\\.){3}\\d{1,3}\\b")) { thing = inetAddress.getHostAddress(); }
Corrected source code
if (!inetAddress.isLoopbackAddress() // && thing == "0.0.0.0" && inetAddress.getHostAddress().matches( "\\b(?:\\d{1,3}\\.){3}\\d{1,3}\\b")) { thing = inetAddress.getHostAddress(); }
It seems to be a bug since it was version 9.0 of Android.
Anyhow, commenting like that is done.
thank you.
Based on this https://stackoverflow.com/a/10199498/7229333
There must be a reason for that comparison there that you are commenting out. With your suggested change, I would recommend the next additional change so from:
thing = inetAddress.getHostAddress();
to
return inetAddress.getHostAddress();
Kf
happy that it works but i remain very confused:
i never saw the Manifest
i suppose that @GWAK is using 2 or 3 phones (6,8,9)
i dont know what is the compiling version
i would like to read some complete code snippet
i have had a look at the src code from Ketai (from which is extracted the code posted) and String “thing” is set to “0.0.0.0” in a for loop (at each loop) so i cannot see why commenting it can change something…And it “returns” the ip, as suggested by @kfrajer
This is ‘Ketai library source code’.
static public String getIP() {
String thing = “0.0.0.0”;try { for (Enumeration<NetworkInterface> en = NetworkInterface .getNetworkInterfaces(); en.hasMoreElements();) { NetworkInterface intf = en.nextElement(); for (Enumeration<InetAddress> enumIpAddr = intf .getInetAddresses(); enumIpAddr.hasMoreElements();) { InetAddress inetAddress = enumIpAddr.nextElement(); if (!inetAddress.isLoopbackAddress() && thing == "0.0.0.0" && inetAddress.getHostAddress().matches( "\\b(?:\\d{1,3}\\.){3}\\d{1,3}\\b")) { thing = inetAddress.getHostAddress(); } PApplet.println("IP address: " + inetAddress.getHostAddress()); PApplet.println("thing : " + thing); } } } catch (SocketException ex) { PApplet.println("SocketException:" + ex.toString()); } catch (NullPointerException nx) { PApplet.println("Failed to get any network interfaces..."); } //PApplet.println("IP address: " + inetAddress.getHostAddress()); //PApplet.println("thing : " + thing); return thing;}
The source code has been modified as shown below.
// && thing == “0.0.0.0”
I do not know the exact reason. ;;
The obvious thing is that there is an error in the Android 9.0 version of the smartphone.
@GWAK ===
i told you that i have had a look to this code (from the ketai lib src) ; but you dont answer to the others questions and the real explanation is probably here (the Manifest, the version used for compiling and so on…+ the real code you are using ) -
Dear akenaton,
[Use source code / Real code]
import android.os.Bundle;
import ketai.net. ;
import ketai.ui. ;
import oscP5. ;
import netP5. ;
void setup()
{
fullScreen();
orientation(PORTRAIT);
println(KetaiNet.getIP());
}
[Result]
Example1)
target SDK(Manifest Version) : API9 / Smartphone Android 9.0 :: Strange value ip address
Example2)
target SDK(Manifest Version) : API9 / Smartphone Android 8.0 :: Correct ip address
Example3)
target SDK(Manifest Version) : API8.1 / Smartphone Android 9.0 :: Strange value ip address
Example4)
target SDK(Manifest Version) : API7.0 / Smartphone Android 9.0 :: Strange value ip address
Do you understand?
@GWAK ===
not sure to understand:
Hi, Dear akenaton.
@GWAK ===
-Real testing WITH TWO REAL DIFFERENT PHONES?
-without recompiling the lib commenting/uncommenting the src code cannot have any effect!
Depending on the Android version, the result value is different.