Saving variable to file, and use it for tcp/ip connexion.

[ciprian]

Hi there. I need some help in my project and i hope you can give me a hand.
In my project, i connect to an relayboard in tcp/ip, and send commands to on/off the relays.
All works fine until here...
The problem is that i want to ask the user of my app to write the ip adress and the tcp/ip port and then store them to a file, to use it later for connecting socket.
How can i do that please?

 

[mc73]

Check Random Access File.

 

[warwound]

Or AHPreferenceActivity.

Using AHPreferenceActivity you'll have a ready built UI to allow the user to enter the IP address etc and be able to add more settings/preferences if required.

Martin.

 

[ciprian]

Thankyou. I'm a newbie so it's giving me some headakes....i'll try both....even if AHPreferenceActivity sounds good for me....
Hope i will be able to understand by my self.

 

[warwound]

The forum is full of tutorials, the forum Search will help you lots!

Martin.

 

[ciprian]

Okay, it's been 2 months since i discovered basic4android, i'm not a developer, just an automatics technician. I'm learning a lot, even if i don't have enough time to study...i'm loving it. Thankyou all for helping, kindness and all great ideas and tutorials i can find in here.

 

[ciprian]

In AHPreferenceActivity example, i chosed two edit-text for my ip adress and the port (TCP/IP) . How can i use the stored text as a string for my TCP stream connection?

 

[warwound]

You'll have an instance of the AHPreferenceManager and you need to use it's GetString(Key As String) method.

To create the IP address and port EditTexts you must have used the method:
AddEditText (Key As String, Title As String, Summary As String, DefaultValue As String, Dependency As String)

So your IP address and port EditTexts allow the user to enter values and each value has a unique key, the key is the key used in AddEditText.

Pass this key to GetString(Key As String) and you'll get your stored value.

The official PreferenceActivity tutorial can be found here: http://www.b4x.com/android/forum/threads/preferenceactivity-tutorial.10608/, it applies to the official PreferenceActivity as well as the (modified) AHPreferenceActivity.

Martin.

 

[ciprian]

Are theese strings availables in other module or i have to use the same module where is located AHAPreferenceManager?

 

[warwound]

They are available in all modules - but you'll need an instance of the AHPreferenceManager to get the values.

The tutorial shows how to have an instance of the AHPreferenceManager as a Process_Global in one module.
Now you can access that instance from the module it was declared in and also from any other module.

To access that instance from a module which it was not declared in you prefix the instance name with the name of the module it was delcared in:

Main.MyPreferenceManager.GetString("port")

Here i'm assuming that in module Main you have declared MyPreferenceManager as a Process_Global.
From module main you'd use:

MyPreferenceManager.GetString("port")

From all other modules you'd use:

Main.MyPreferenceManager.GetString("port")

Martin.

 

[ciprian]

Nice, thankyou. I'll try that in a fiew hours.

 

[ciprian]

And how to write the values from "edit1" into an EditText ?

 

[Erel]

EditText.Text = Main.MyPreferenceManager.GetString("edit1")

 

[ciprian]

Thankyou Erel..it works very fine. I'm glad that i discovered Basic4Android.