I think str() should do the trick.
Also... Why is this is Android Processing?

I tried that and it would not run on my phone. I'll post my code in a minute.

As it is, you could try directly casting from the input to a String (instead of a byte)...
Although I don't know why str() doesn't work.
Does str() work on the desktop? Is the problem caused by Android? Or is that just... not sufficient?

Just to let you know, by putting the post in Android Processing, you exclude people that could potentially help you, even if the problem involves Android, but does not necessarily require Android to replicate. Phi.Lho  could probably give you a lecture about this... Where to place threads and other forum practices.

I felt since I am dealing with an inputStream on an Android that this would be the right forum. 

I think what calsign was trying to say is to do this:

1. InputStream ins;
2. String valor;
3.  
4. ins = socket.getInputStream(); 
5. valor = str( ins.read() );

The str() method takes in a variety of input (see reference) and returns it as a String.

Hope that helps,

Jason.

I just tried this. I no longer got the error, however, when the app is run, it force quits still. 

Can you post some more code, or some sample code reproducing the error?

Also, are you checking for your InputStream being null? That could cause a force quit for sure.

First, why do you want to convert a single byte to a String? How to you plan to use the result? Perhaps the conversion isn't necessary at all. Perhaps you need to convert an array of bytes instead.
Note that you don't convert "inputStream" to String, input stream is just a kind of channel from which you can get one byte, or several, depending on what is in the pipe... You convert what you get from this stream.

Second, not all bytes can be converted to a String. Or at least to a displayable one. It depends on what you get.

Overall, we need more information on what you want to do.

1. thank you for your explanation. i am trying to read the serial off of an arduino uno via bluetooth on android. i have a gps module hooked up to the arduino and the serial prints in the latitude,longitude and the speed. it looks like this    40.676527 -79.63842 0.12    i need to have the android read this input so that i can separate the values to do further work. so really i need an effective way to read from the arduino serial. 

I was able to figure out how to read from the arduino over bluetooth to get the values as a string.

However, i was still unable to: 1) only read certain values 2) assign the values easily to their own variables

i did find a work around method that is not good, but works most of the time. From your transmitting device, mine is arduino, you send the data over with an added splitting term. You add a term to the string such as / or _ so that you can use the processing split() function to break the input string up into an array of strings. then assign the different array value to variables

Example: the string from the arduino is read on android to be ".09675/5.2425/2.4353"

Then you use:

String[] value = split(arduinoString,'/');

println(value[0]+" "+ value[1]+" "+value[2],);
//prints out: .09675 5.2425 2.4353

float x = value[0];

float y = value[1];

etc...

Let me know if this makes sense.

I'm trying to do something similar, currently I'm reading an analog value from my arduino via bluetooth but my code is only capable of reading values as a signed byte (-127, 127). A person told me I need to store the bytes from the inputstream in an array and then convert those into a string with the function Arrays.tostring , but I haven't succeeded yet. Have you achieved in converting the inputstream into a string? do you have any code that you would like to share?

As said, put the bytes in an array, then convert the array to a string like:

1.   byte[] b = { 0x61, 0x63, 0x65 };
2.   String s = new String(b);

It just not working .    I don't see the part where the bytes(from the inputstream)  are read and then assigned in the inbuffer, I only see the instruction for storing those bytes in an array

In the static part of my code I wrote:.


byte[] inbuffer =new byte[2]; // storing the bytes read from arduino in array (this instruction is missing the command for reading the bytes from the inputstream.

then, in the active mode where it shows the data I wrote;

void muestraDatos() {
  String data = new String(inbuffer); // changing byte values into string

 
  background(0);
  fill(255);
  text(data, width / 2, height / 2);
  stroke(255, 255, 0);
  fill(255, 0, 0);
  rect(120, 400, 80, 40);
  fill(255, 255, 0);
  text("Botón", 135, 425);
}