please can anyone tell me how to store the RMS data to file and how to modify it?
You can use this code for write the data in a file.
private void writeTextFile(String fName, String text) {
DataOutputStream dos = null;
FileConnection fconn = null;
try {
fconn = (FileConnection) Connector.open(fName, Connector.READ_WRITE);
if (!fconn.exists())
fconn.create();
dos = fconn.openDataOutputStream();
dos.write(text.getBytes());
} catch (IOException e) {
System.out.println(e.getMessage());
} finally {
try {
if (dos != null)
dos.close();
if (fconn != null)
fconn.close();
} catch (IOException e) {
System.out.println(e.getMessage());
}
}
}
Related
I am trying to stream an audio content (AAC) from server. The player starts without any problem, and after some time throws OutOfMemoryError. I think I need to buffer the audio. Any one please guide me to implement (or get rid-of this error) buffering.
Here is my code.
`HttpConnection c = null;
InputStream is = null;
try {
c = (HttpConnection) Connector.open(streamURL,
Connector.READ_WRITE);
int rc = c.getResponseCode();
System.out.println("Response Code " + rc);
if (rc != HttpConnection.HTTP_OK) {
showAlert("Server error returned");
} else {
playerForm.append("openInputStream");
is = c.openInputStream();
player = Manager.createPlayer(is, "audio/aac");
player.realize();
// get volume control for player and set volume to max
VolumeControl vc = (VolumeControl) player.getControl("VolumeControl");
if(vc != null)
{
vc.setLevel(100);
}
player.prefetch();
player.start();
}
} catch (Exception f) {
playerForm.append("Exception in player " + f.getMessage() + "\n");
} finally { // Aufräumarbeiten ausführen
if (is != null)
try {
is.close();
} catch (IOException e) {
}
if (c != null)
try {
c.close();
} catch (IOException e) {
}
}`
Thanks in advance.
Regards
Anish.
Instead of Exception in catch just use Throwable class it will handle OutOfMemoryError
I am writing code on android and I need change permissions of some files, I have installed Busybox to have many commands, but when executing code does nothing.
Process p = Runtime.getRuntime().exec("chmod 777 /data/app/XXX");
BufferedReader in = new BufferedReader(
new InputStreamReader(p.getInputStream()));
String line = null;
while ((line = in.readLine()) != null) {
System.out.println(line);
}
private boolean isSu() throws IOException, InterruptedException {
Process p;
try {
// Preform su to get root privledges
p = Runtime.getRuntime().exec("su");
// Attempt to write a file to a root-only
DataOutputStream os = new DataOutputStream(p.getOutputStream());
os.writeBytes("echo \"Do I have root?\" >/system/sd/temporary.txt\n");
// Close the terminal
os.writeBytes("exit\n");
os.flush();
try {
p.waitFor();
if (p.exitValue() != 255) {
toastMessage("root");
return true;
} else {
toastMessage("not root");
}
} catch (InterruptedException e) {
toastMessage("not root");
}
} catch (IOException e) {
toastMessage("not root");
}
return false;
}
I am posting some data to server but i am getting {"status":false,"error":"Invalid API Key."} response from server. My API Key is correct but where is the problem i don't know. Please friends help me. I tried lot but i did not find solution. I have used following code for posting data to server.
public void tryingOne(String dtl){
HttpConnection httpConn = null;
InputStream is = null;
OutputStream os = null;
String url="http://api.geanly.in/ma/index?API-Key="+apikey;
String details = "&orderInfo={\"booking\":{\"restaurantinfo\":{\"id\":\"5722\"},\"referrer\":{\"id\": \"9448476530\" }, \"bookingdetails\":{\"instructions\":\"Make the stuff spicy\",\"bookingtime\": \"2011-11-09 12:12 pm\", \"num_guests\": \"5\"}, \"customerinfo\":{\"name\":\"Vinodh SS\", \"mobile\":\"9345245530\", \"email\": \"vind#gmail.com\", \"landline\":{ \"number\":\"0908998393\",\"ext\":\"456\"}}}}";
try {
System.out.println("url####"+url);
httpConn = (HttpConnection) Connector.open(url);
httpConn.setRequestMethod(HttpConnection.POST);
DataOutputStream outStream = new DataOutputStream(httpConn.openDataOutputStream());
outStream.write(details.getBytes(),0,details.length());
outStream.flush();
outStream.close();
//Reading Resp. from server
StringBuffer sb = new StringBuffer();
is = httpConn.openDataInputStream();
int chr;
while ((chr = is.read()) != -1) {
sb.append((char) chr);
}
System.out.println("Response from srvr " + sb.toString());
} catch (IOException ex) {
ex.printStackTrace();
} finally {
if (is != null) {
try {
is.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
if (os != null) {
try {
os.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
if (httpConn != null) {
try {
httpConn.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
}
}
Please help me friends...
Thanks
you need to trim the variable "apikey".
I was getting same problem when connecting with Picasa Server.
For sending data using HttpConnection use the class in this tutorial. It also gets the response from the server.
I am trying to read content from file in blackberry and i read the file content to result object and when i am trying to print the result object it gives error and the file is in res folder,and this is code that i got problem
private String readTextFile(String fName) {
String result = null;
FileConnection fconn = null;
DataInputStream is = null;
try {
fconn = (FileConnection) Connector.open(fName, Connector.READ_WRITE);
is = fconn.openDataInputStream();
byte[] data = IOUtilities.streamToBytes(is);
result = new String(data);
System.out.println("result data is ...... "+result);
} catch (IOException e) {
System.out.println(e.getMessage());
} finally {
try {
if (null != is)
is.close();
if (null != fconn)
fconn.close();
} catch (IOException e) {
System.out.println(e.getMessage());
}
}
return result;
}
what is fName here ?
The file name or the path could cause similar problem.
I'm trying to play a recorded wave file. While playing, an exception is thrown at the following statement:
Player player = Manager.createPlayer(is, "audio/mpeg");
My entire code for playing the wave file is as follows:
if (types[cnt].equals("audio/x-wav")) {
Class clazz = Class.forName("RecordAudio");
InputStream is =
clazz.getResourceAsStream("file:///SDCard/BlackBerry/original.wav");
//create an instance of the player from the InputStream
Player player = Manager.createPlayer(is, "audio/mpeg");
player.realize();
player.prefetch();
//start the player
player.start();
}
What could be the problem?
The function getResourceAsStream is for pulling resources from a JAR/COD file, not from the filesystem. Plus, this is simpler than you are making it. Just pass the file name and path to createPlayer, like so:
try {
String filename = "file:///SDCard/BlackBerry/original.wav";
Player player = javax.microedition.media.Manager.Manager.createPlayer( filename );
} catch (IOException e) {
System.out.println("Error creating player");
} catch (MediaException e) {
System.out.println("Error media type");
}
I believe it is because of wrong MIME type. Try this:
String fileName = "file:///SDCard/BlackBerry/original.wav";
String mimeType = "audio/x-wav";
String types[] = javax.microedition.media.Manager
.getSupportedContentTypes(null);
for (int cnt = types.length - 1; cnt >= 0; --cnt) {
if (types[cnt].equals(mimeType)) {
InputStream is = null;
FileConnection fconn = null;
try {
fconn = (FileConnection) Connector.open(
fileName, Connector.READ);
} catch (IOException e) {
System.out.println("Error reading file");
}
try {
is = fconn.openInputStream();
} catch (IOException e) {
System.out.println("Error opening stream");
}
Player player = null;
try {
player =
javax.microedition.media.Manager.createPlayer(
is, mimeType);
} catch (IOException e) {
System.out.println("Error creating player");
} catch (MediaException e) {
System.out.println("Error media type");
}
try {
player.realize();
} catch (MediaException e) {
System.out.println("Player cannot be released");
}
try {
player.prefetch();
} catch (MediaException e) {
System.out.println("Player cannot be prefetched");
}
// start the player
try {
player.start();
} catch (MediaException e) {
System.out.println("Player cannot be started");
}
}
}
Also see in console what kind of exception was thrown.