How do I change the microedition.encoding for a BlackBerry application?
I can only view it with System.getProperty("microedition.encoding"). I have tried to send it as an argument from the application descriptor microedition.encoding="UTF-8", but it has no effect.
As Arhimed said, your question is not so clear. It would be better if you can brief us on your problem. However if you are looking for some URL encoding you can also try this. Method:
private String encodeString(String hsURL)
{
URLEncodedPostData
urlEncoder = new URLEncodedPostData("UTF-8", false);
urlEncoder.append("url", hsURL);
hsURL = urlEncoder.toString();
hsURL = hsURL.substring(4);
return hsURL;
}
Related
How can I make possible that the app will load all of the images from the specific folder and then put in array and choose one image randomly? When chose one then pass to the fronted to show the image. How to do that too?
I am C# developer but not long time ago I found ElectronJS and this framework does everything easier so therefore I am moving to this framework.
I did in C# programming this way:
// basic settings.
var ext = new List<string> { ".jpg", ".gif", ".png" };
// we use same directory where program is.
string targetDirectory = Directory.GetCurrentDirectory() + "\\assets\\" + "images\\" + "animals\\";
// Here we create our list of files
// New list
// Use GetFiles to getfilenames
// Filter unwanted stuff away (like our program)
if (Directory.Exists(targetDirectory))
{
Files = new List<string>
(Directory.GetFiles(targetDirectory, "*.*", SearchOption.TopDirectoryOnly)
.Where(s => ext.Any(es => s.EndsWith(es))));
// Show first picture so we dont need wait 3 secs.
ChangePicture();
}
else
{
panel5.BackgroundImage = new Bitmap(Resources.doggy);
}
I don't know how to do in ElectronJS.
Thank you in advance the answers.
Alright. I found the solution.
However I don't understand the people who are giving negative reputation for the opened question. If they are giving negative reputation then they could explain why.
Well anyway, I did fix this issue with this way:
I created images.js file and added this:
var fs = require('fs');
function getRandImage() {
var files = fs.readdirSync('./assets/images/animals/')
/* now files is an Array of the name of the files in the folder and you can pick a random name inside of that array */
let chosenFile = files[Math.floor(Math.random() * files.length)]
console.log('../assets/images/animals/' + chosenFile);
return '../assets/images/animals/' + chosenFile;
}
module.exports = { getRandImage }
I used console to see if the value is correct, otherwise others can delete that part.
Sending the data to the renderer process:
const { getRandImage } = require('./images');
child.webContents.send('random-image', getRandImage());
I did put in the preload.js file the following (I used the starter pack electronjs github to start with something):
var { ipcRenderer } = require('electron');
ipcRenderer.on('random-image', function (event, store) {
document.getElementById("randompic").src = store;
console.log(store);
});
Same here, I did use console.log just for test the value is correct and I used to change the randompic ID related image src html to the randomly chosen image.
Hopefully I did helping those people who are newbie as me.
I am using the url_launcher plugin for call, but the dialer is not showing the # character:
String url = 'tel:*123#';
if (await canLaunch(url)) {
await launch(url);
} else {
throw 'Could not launch $url';
}
You need to use URL encoding for special character in a URL.
So # equals %23
This will work launch('tel:\*123\%23');
Other Way is to encode the number typed by user and pass it through Uri.encodeFull(urlString) or Uri.encodeComponent(urlString)
Like this.
launch("tel:" + Uri.encodeComponent('*123#'));
Disclaimer: plugin author here.
Do you want the phone call user interface to open or would you rather make the request silently? If you prefer to do it without popping the phone call UI, Android introduced in API level 26 the method sendUssdRequest.
I made a Flutter plugin called ussd_service to be able to easily access it from dart in a Flutter application. It can be used in the following manner:
import 'package:ussd_service/ussd_service.dart';
makeMyRequest() async {
int subscriptionId = 1; // sim card subscription Id
String code = "*21#"; // ussd code payload
try {
String ussdSuccessMessage = await UssdService.makeRequest(subscriptionId, code);
print("succes! message: $ussdSuccessMessage");
} on PlatformException catch (e) {
print("error! code: ${e.code} - message: ${e.message}");
}
};
makeMyRequest();
Hope this helps! Let me know on the Github repo's issues if you have any issue with it.
I'm trying to save a record like so:
var testRecord = new SecRecord(SecKind.GenericPassword)
{
CreationDate = DateTime.UtcNow,
MatchCaseInsensitive = false,
Service = "MyService",
Label = "MyService",
Account = "User",
Generic = NSData.FromString("test", NSStringEncoding.UTF8),
};
SecKeyChain.Add(testRecord);
...but I'm getting SecStatusCode.Param back when I run it in the simulator. According to the documentation, that code means "Invalid or incomplete parameters passed" but I don't see anything missing or unusual that others aren't doing with apparent success.
Even adding CreationDate, Invisible, Description, Comment, Accessible, and ValueData properties to the SecRecord (some as in this example) didn't help -- still getting SecStatusCode.Param.
Are there any non-obvious things that might cause a Param status code to be returned?
I had a lot of trouble trying to use the keychain. I finally got mine working to store user credentials in the app. Here is what I have:
SecRecord existingRec = new SecRecord (SecKind.GenericPassword) {
Service = Keychain.USER_SERVICE,
Label = Keychain.USER_LABEL
};
var record = new SecRecord (SecKind.GenericPassword) {
Service = Keychain.USER_SERVICE,
Label = Keychain.USER_LABEL,
Account = username,
ValueData = NSData.FromString (password),
Accessible = SecAccessible.Always
};
SecStatusCode code = SecKeyChain.Add (record);
if (code == SecStatusCode.DuplicateItem) {
code = SecKeyChain.Remove (existingRec);
if (code == SecStatusCode.Success)
code = SecKeyChain.Add (record);
}
Keychain is a static class with constants so I don't have to retype the strings.
The only thing different between yours and mine is the CreationDate/MatchCaseInsensitive properties and the encoding for NSData. Maybe try it without those and see if it works? If so, add them back separately and see what gives the problem.
This might be because you are running on the simulator - in that case you need to add an Entitlements plist in the project options for your current build config in order to make keychain access work.
I am working on a USSD client. Everything works fine except for closing a distant USSD session.
In the specification, we can see the function CUSD:
AT+CUSD=2 should close the USSD session, but this is not really the case.
In fact when I do this sequence:
AT+CUSD='#xxx#',12
AT+CUSD='1',12
I have an open distant connection.
On your handset, you can open a new session by dialing #xxx*#
If I send a:
AT+CUSD='#xxx*#',12
This is not opening a new distant session.
If I send a:
AT+CUSD=2
AT+CUSD='#xxx#'
This is not opening a new distant session.
Do you know how to close a distant session?
I am working with huwaei key E160 and E173 on windows or Linux.
Use in the following way.
AT+CUSD='#xxx#',15
AT+CUSD=2
I am posting this because this is the top result regarding terminating USSD sessions using AT commands and also because the answers are vague.
This is the c# code i used in the end(I was sending the commands to a gsm modem). Hope it helps someone else
SerialPort SendingPort=null;
public string TerminateUssdSession()
{
InitializePort();
//// generate terminate command for modem
string cmd = "";
cmd = "AT+CUSD=2\r";
// send cmd to modem
OpenPort();
SendingPort.Write(cmd);
Thread.Sleep(500);
string response = SendingPort.ReadExisting();
return response;
}
private void InitializePort()
{
if (SendingPort == null)
{
SendingPort = new SerialPort();
SendingPort.PortName = PortName;//put portname here e.g COM5
SendingPort.BaudRate = "112500";
SendingPort.Parity = Parity.None;
SendingPort.DataBits = 8;
SendingPort.StopBits = StopBits.One;
SendingPort.Handshake = Handshake.None;
SendingPort.ReadTimeout = 500;
}
}
private void OpenPort()
{
if (!SendingPort.IsOpen)
{
SendingPort.Open();
}
}
I am trying to generate the OData Proxy for the service : http://services.odata.org/Northwind/Northwind.svc/$metadata
I am using System.Data.Services.Design.EntityClassGenerator for generating the OData proxy.
When I instantiate the EntityClassGenerator and call GenerateCode the output has no errors. But there is no code in the generated proxy code.
The same code works for my own service. But when I point it to any external service the EntityClassGenerator is not working.
Here is the code :
HttpWebRequest webRequest = (HttpWebRequest)HttpWebRequest.Create(metadataEndpoint);
webRequest.Method = "GET";
webRequest.ContentType = "text/xml;encoding='utf-8";
webRequest.Proxy = (proxy != null) ? proxy : WebRequest.DefaultWebProxy;
using (WebResponse response = webRequest.GetResponse())
{
string xml = string.Empty;
XmlReaderSettings settings = new XmlReaderSettings();
using (TextReader reader = new StreamReader(response.GetResponseStream()))
{
xml = reader.ReadToEnd();
using (XmlTextReader sourceReader = new XmlTextReader(reader))
{
using (StringWriter targetWriter = new StringWriter())
{
// Generate the OData End point proxy.
EntityClassGenerator entityGenerator = new EntityClassGenerator(LanguageOption.GenerateCSharpCode);
entityGenerator.OnPropertyGenerated += new EventHandler<PropertyGeneratedEventArgs>(entityGenerator_OnPropertyGenerated);
IList<System.Data.Metadata.Edm.EdmSchemaError> errors = entityGenerator.GenerateCode(sourceReader, targetWriter, namespacename);
entityGenerator.OnPropertyGenerated -= new EventHandler<PropertyGeneratedEventArgs>(entityGenerator_OnPropertyGenerated);
odataProxyCode = targetWriter.ToString();
}
}
}
}
I found the code in the question to be a useful starting point for doing exactly what the OP was asking. So even though the OP doesn't accept answers, I'll describe the changes I made to get it to work in case it is useful to someone else.
Removed the xml = reader.ReadToEnd(); call. I assume that was for debugging purposes to look at the response from the web request, but it had the result of "emptying" the reader object of the response. That meant that there was nothing left in the reader for the GenerateCode call.
The important one: Changed the use of EntityClassGenerator to System.Data.Services.Design.EntityClassGenerator. In the code below, I included the entire name space for clarity and specificity. Based on the code in the question, it appears the OP was probably using System.Data.Entity.Design.EntityClassGenerator. I used .NET Reflector to examine datasvcutil.exe, which is a command-line utility that can generate the proxy classes. I saw that it referenced the generator in that other name space.
For figuring out the problems, I dumped the errors from the GenerateCode call. One could examine them in the debugger, but some kind of automated checking of them would be needed regardless.
Here is what I ended up with:
HttpWebRequest webRequest = (HttpWebRequest)HttpWebRequest.
Create("http://services.odata.org/Northwind/Northwind.svc/$metadata");
webRequest.Method = "GET";
webRequest.ContentType = "text/xml;encoding='utf-8";
webRequest.Proxy = WebRequest.DefaultWebProxy;
using (WebResponse response = webRequest.GetResponse())
{
using (TextReader reader = new StreamReader(response.GetResponseStream()))
{
using (XmlTextReader sourceReader = new XmlTextReader(reader))
{
using (StringWriter targetWriter = new StringWriter())
{
// Generate the OData End point proxy.
System.Data.Services.Design.EntityClassGenerator entityGenerator =
new System.Data.Services.Design.EntityClassGenerator(
System.Data.Services.Design.LanguageOption.GenerateCSharpCode);
IList<System.Data.Metadata.Edm.EdmSchemaError> errors =
entityGenerator.GenerateCode(sourceReader, targetWriter,
"My.Model.Entities");
foreach (System.Data.Metadata.Edm.EdmSchemaError error in errors)
Console.WriteLine("{0}: {1}", error.Severity.ToString(), error.Message);
string odataProxyCode = targetWriter.ToString();
}
}
}
}