Mobile Development Forum

I am new to J2ME Programming so i am stuck with the keylisteners.. I am writing a simple J2ME app in which there are 2 textfields. As soon as the user types a char in first textfield the result must be displayed in second. I want to handle the events …

Hi I have an app for Android phones. It is working as intended but when I receive a phone call the app is minimised(but still running) and I have to open the app again. I was wondering how do I make it so after the phone call it restores my …

Hi Guys and Girls, I'm having some trouble getting a timer to work on my android 2.1 app. I want it so once a button is clicked it trys to connect to my server every 60 seconds. my code for connecting to server is working, but I don't understand why …

i created a simple program using j2me when the user input number[1-9], the element that corresponds to the input is highlighted.. i use choicegroup.. how to do it??

Hello all! I'm having problems with running c++ on iOS. I have a iOS openGL project in Xcode 4 and an external library written in c++ that has to be a dependency to the iOS target so it can run on an Ipad. right now I'm testing with the iPad …

Hello Everybody, I thought it'd be a great idea to share my code with people who s*ck with the same problem, maybe it'll help... :) It still needs security improovements, but since I'm not a Java guru, I'm a little slow with the solution... :) Any help would be appreciated! …

Hi DaniWeb, I'm currently writing a client server program. I have my client and server sending data and everything fine. But I'm trying to get my client to reconnect. E.g if I get the server to kill the clients connection how can I get the client to realise it is …

I was creating a bluetooth program to access files of another mobile device. I have used 0x1106 UUID for searching services. But i am getting null pointer exception. As well please let me know about how to set HeaderSet to get folder detials from root. Thanks

i created a list of name using j2me. its like looking for a contact number in our phone that has a textfield to search. i want that when i type the beginning of the name i want to highlight the name that corresponds the search name.. is it possible to …

Is it possible? I have three midlets. I want only one running first and others should be available to the user after lauching the 1st midlet. How can I achieve this??

When I try to enter data in to PIM with J2me, It gives an InvalidIDException. What is it? and how can I resolve it.

Hello Friends, I have 6 to 7 threads which are running parallely. Thing is I have to put Thread.Sleep() between each threads. How Can I optimize it? [CODE]else if (__selectedString.equals("Master DataInput")) { try { if (RecordStore.listRecordStores() != null) { System.out.println("IT FOUND RECORDSTORE ......"); RecordStore.deleteRecordStore("Company"); RecordStore.deleteRecordStore("Product"); RecordStore.deleteRecordStore("Model"); RecordStore.deleteRecordStore("Customer"); RecordStore.deleteRecordStore("Sales"); System.out.println("Delete All …

I want to synchronize the data in the record store in mobile phone with mysql database. I connected them through a web service. How can i sync them. What is the way?? i looked in at syncML. Didn't found how to use it properly. Is there any other ways?? please …

Hello Friends, I have created application which can be work In Online Mode(GPRS) and Offline Store(Recordstore). Its working fine in default configuration and touch configuration. But its not working on QWERTYDevice(In emulator as well as On real Mobile Device(Nokia X2-01)). In Emulator I am getting This Error : [CODE=text] java.lang.NegativeArraySizeException …

Hello and Hi, can you help me please, i am newer in the mobile development. i want to learn in this mobile development in using the wireless toolkit.the problem is that i don't know how to use it,and what ide should i use this in making the application?please help me …

i created an application for my mobile phone using J2ME...i want that when i turn-on my mobile phone i want my application to start automatically... i heard about push registry but i dont know how to do that... could anybody help me??? thnks....

I've tried and failed repeatedly to simply have my Android emulator go from one activity to another in a program. Each attempt suddenly forces the app to close. Here is my code for the two activites: [CODE]package dg.exe; import android.app.Activity; import android.os.Bundle; import android.content.Intent; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; …

Hi my problem is that i'm making a mobile app and i need to seperate the following string: ChrisHunter21 into: Chris Hunter 21 What is the easiest way to do this in J2ME ? i had a look at the Ostermiller one but didnt understand it. Thanks Chris

Hi all I really need your help! i'm trying to debug my application for anroid on my cell phone(HTC DHD) it worked fine, but now i'm getting this error: Adb connection Error:An existing connection was forcibly closed by the remote host i've tried everything, including adb kill-server, adb start-server. also …

Hello, I'm a smartphone enthusiast and have read about various mobile OS .But when it comes to implementation in this field I am blank.Kindly help me as to where should I start from scratch to be able to grasp the basics of mobile development.Please help. Regards

After following above program i still have tons of error on my list what step i could have missed... I really need to get it to work before i could start on my project... [url]http://integratingstuff.com/2010/10/18/writing-code-that-captures-videos-on-android/[/url]

[ATTACH=left]17409[/ATTACH]A [URL="http://www.safecellapp.com"]new app[/URL] now connects smart phone's GPSs with its location's federal, state, county and city current cell phone usage laws to prevent accidents from distracted driving. SAFECELLapp, released on Apple September 27, 2010 and slated for Android release in early October, issues real-time alerts to drivers entering areas with …

Hi there, I would just like to know from the Android developers here what books they would recommend for starting out with Android? Also, how diferent is it coding Android from the Core Java API's? Thanks!

Is there any way to get the play button to stay hidden in the background during recording until the user intervene to click the screen to allow the button to resurface the play button to stop the recording process?? Is the code coded in the .xml file or somewhere else.. …

I want to start development for IPad. I own a late model mac mini and want to use xcode 4 for development. What education materials should I use to to accomplish this? Thanks.

Hi, I've started developing for Androind [ditched Symbian but that's a whole diferent styory], and I'm not what you'd call a naturall Java developer [much prefer c++]. Eclipse seems to run rediculously slowly on windows 7 (64bit), and running a dual boot system with Linux [on which it seems to …

Quick Question, can you develop a Iphone App on a windows system or do you need a Mac operating system?

How should i reorient an android application in landscape mode once an apps is started?? I started an app but it does not automatically switch to landscape mode.. I tried writing it to "horizontal" but it does not work.. [CODE]<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="horizontal" android:layout_width="fill_parent" android:layout_height="fill_parent" >[/CODE]

First of to clarify i'm virtually new to java and not that good in programming. But i was told to develop an 2.2 android apps which takes video excluding sound when on the road "acts like a car blackbox".. I found a series of code online but i just don't …

How should i come about accessing eclipse file folder on another computer using the elicpse software too?? I mean accessing the entire file as a whole with a working solution and not accessing .xml or .java individually. Or is it impossible to access the file as a whole but i …

Background information on the apps i'm doing: First off i'm new in java and of course having trouble getting use to eclipse programme, and worse of i'm kinna bad in programming... :( And adding on to the problem i'm given only 11 weeks from now to complete the app... School …

I want to create program that would check if the mobile phone is registered by using IMEI in a mobile phone? How to get the IMEI number using J2me. Could someone show me the right code in doing this..thnks in advance...

Hi, I recently decided to learn how to program and distribute applications for iPad. After some research I have some questions. I found similar threads in this forum but none where exactly what I wanted. 1) Do I have to buy a Mac to develop my iPad program? After reviewing …

I am trying to connect to a database through j2me app and send two strings.It gives me java.lang.SecurityException: Application not authorized to access the restricted API error. (Caught in the try catch block) [CODE] import java.io.*; import javax.microedition.io.*; import java.util.*; import javax.microedition.midlet.*; import javax.microedition.lcdui.*; public class storeNumbers extends MIDlet implements …

I connect a mysql database through a Axis2 web service with J2me app. Every time i insert a data to the database the following exception occurs. java.rmi.MarshalException: SAXParseException in response from server But the operations get completed successfully. Also this occurs only when i try to write a record to …

Hi, I am building a simple android application that sends GPS coordinates from an Android phone to a Webserver, and the received co-ordinates are displayed one by one in the server. I think both my client and server side programs are correct, but I am not sure. Please correct the …

Hello all, I have developed one application which import all databases into recordstore. This executes successfully, but the problem comes when I try to Filter my records. here the code is : [CODE]public void itemStateChanged(Item item) { if (item == choiceGroup_ProductCompany) { RecordFilter filter = new RecordFilter() { public boolean …

Can I ask what the programing languege used in iOS? I heard it was Xcode but I'm not 100% what that is, lol if anyone can give me a hand it would be great. Also (and I know this is kind of a supid queston) can you use and C++ …

hi i'm lsvife I am beginner in java programming. I created a project that will able to send orders via bluetooth using mobile phone for a fast food chain. I want to add food item by updating the jar file on your mobile phone. how to do it without using …

I want to create a j2me app with some pleasing UI. I tried polish but I didn't worked well, what are the other options I have? I am looking for SVG. But I am not comfortable with xml. please help me with this. than you

Hello all...first-time poster here, and I was wondering if any of you fine folk can help me out with what is surely a simple task, but something very confusing for someone just starting off with Java. In a nutshell, I am creating a simple mobile game where a user is …

I'm wondering if its possible to program using xcode for ios(I pod touch, I phone, I pad) on windows?

Hello all, I am retrieving data from servlet to midlet. Now coming data is whole string. but now I want to chop it into different words. here my code is : [CODE] HttpConnection conn = (HttpConnection) Connector.open(url); StringBuffer sb = new StringBuffer(); conn.setRequestMethod(HttpConnection.GET); conn.setRequestProperty("Content-Type", "Application/x-urlformencoded"); InputStream is = conn.openInputStream(); byte[] …

I have developed an application in j2me in which i am uploading a zip file which work well for Nokia mobile but using the same application for LAVA mobile causes problem - "CONTENT DISPOSITION ERROR - PREMATURE ENDING". Please anyone help me, how can I remove this problem. Thanks in …

[ATTACH=right]19321[/ATTACH]If you're serious about developing Android apps, there's only one platform to build and test them on, and that's the Samsung Nexus S. Why? Because first and foremost, the Nexus S runs pure Android. Not only is Samsung's Nexus S, released in December, one of the most beautiful phones on …

I'm just starting to learn Java now, and I have an urge to create an android app by the end of this college semester. I know someone who can make it for me, but I'm not sure how much I should give the guy for creating it. The app I …

I wrote a web service to connect to mysql database. But I can't find a way to call it from the j2me midlet to pass parameters to the web service. Please help me with this.

Hi there, In a form i have a datagrid with two columns. The columns are about 40 pixels wide and i can't find a way to have them larger when the program loads. Does anyone know a way to do this? Greets, K

Hello Friends, I want to synchronize the database from server to mobile application. I googled so much. I got much information on : [LIST] [*]DB2 Everyplace [*]IBM CloudSpace [*]PointBase(Not able to download) [*]Sync4j [*]SyncML [*]Data Sync API(Not able to find) [/LIST] Now I am confused to which one to select? …

hello every one in my project this semester, i decide to develop a small application for mobile using java. this app allow user to change font size,color and style.. i want to know the following: 1.is it possible? 2.can you tell my the instruction and structure of how to write …