Mobile Development Forum

when i run(compile/debug) an app after editing then it shows exception and save all changes.I shutdown my pc and when after restarting i run it again then code runs fine. if any one knows reason of this .please do tell me.

Hello, I am creating my app and whenever a page loads it instantly focuses on the edit text. How do i stop this? - Mat

Hi Am making a project that has multiple MIDlets. I have borrowed heavily from this project [url]http://www.javaworld.com/javaworld/jw-01-2002/jw-0118-midp.html[/url] I want to create a MIDlet that has an online user database, that users use to send views to a TV station. I have seen the above project but that is for high …

Hello. Please help with fragments in android. I have Activity which extends FragmentActivity to where I'm adding/replacing fragments dynamically. activity.xml and fragment.xml are the xml files. MyFragment class extends Fragment public class MyFragment extends Fragment { TextView t; View view; public static Fragment newInstance(){ MyFragment myFrag = new MyFragment(); return …

Hello Friends, i want to try and learn about how to make android apps, can any tell me how can i make it? what tools i need to use? where can i learn about making android apps?

In my scroll view i want it to kind of move when it get's to the bottom like you know in android when you reach the bottom of a menu and it keeps moving then moves back, like stretches? I was wanting to impliment that into my ScrollView but wasn't …

I have deployed my apk file to the Android emulator but it is displaying the apk file from 3 weeks ago where as I want the current version to display with the updated features as it is showing in Eclipse.Any ideas?

Can any one tell me that which tool is the best for me for the mobile develoment also which language is the must for me to first learn thanks for reading guys

Hi Folks, I am writing an app that involves Client -> Server -> Client communication (one way traffic). I have my data transmitted from client A to the server, simple to test, just print to console, however, I'm trying to test to see if the data has been sent on …

Dear All, I'm developed an application that can read incoming messages. Upto now all its fine, Now my app crashing sometimes and return `NullPointerException`. Please find my error log below. java.lang.RuntimeException: Unable to start receiver me.radhakrishna.buddyreader.TextMessageReceiver: java.lang.NullPointerException at android.app.ActivityThread.handleReceiver(ActivityThread.java:2146) at android.app.ActivityThread.access$1500(ActivityThread.java:127) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1208) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:4441) at …

Hi All, I'm new in android app development and before you present a proposal to the client is it important that you must create a mock up of the design of your app first? If so what are the proper way of creating a mock up design for an android …

hi i'm trying to connect a midlet running on my emulator (jwtk 2.5.2) to an apache tomcat server which has the servlet code. when i run the emulator instead of displaying the name i posted in the midlet code after connecting to the server, the screen displays the servlet code. …

hi Actually I'm a web developer.I intersted to learn android.i want to know how to install complete Android setup in ubuntu.Can u please suggest the best tutorials for Android Development

I'm trying to expand on the Tab Swipe Application template. I've created a class, say x, which extends AsyncTask which reads from network and update ListView. x.execute(param1) is invoked from the static class DummyFragment. The problem is i'm confused as to how to pass the context to the following code. …

Hello guys, For my final year project I decide to develop an app for android. I have done some research and stuff for first semester and have to present the working app at the end of second semester. To be honest I'm not that great developer however I'm still interested …

Hey guys, i am developing an android app using Java, using eclipse on a windows PC. The building of the app started off very well, and we managed to get a working prototype working on a android phone using the USB debugging option. I have come across a big problem …

Hi I know couple of programming languages. I have been juggling for months with the question, if its worth taking a Cert in Android application development and /or IOS application development. I have asked around and got responses such as its a fad, tech will change in a few years …

hello I know windows & Linux but I am now very anxious to learn android operating system.can any one help me that where to learn it or any best,easy book so that I can learn myself own

I am trying to make a login screen for my android app. I enter to correct username and password and I get the toast message saying I have the wrong username or password. I've tried everything I can think of to try and fix this and thought I would ask …

i have a code that creates a login password for a user in my android app. The code first of all compares the setPass and the confirmation pass then saves it in the db. My problem is that its doing the checking on the first part of the if function …

Hello people! I want to develop for Windows Phone (7.5/7.8). Can someone point me where I should start? I'm kinda familiar with C#, I need to know what changes from C# development on desktop and C# development on WP. Sorry for the vague question, I really don't know where to …

I am building my very first android app on eclipse for a school project. The main screen has 5 buttons on it and when clicked, you are brought to a new screen with the same name as the button. This new screen has a close button that brings you back …

Beginner question about these intents and activities... If I plan to do something with the phone hardware or file system, is it necessary to use an activity for doing so? What is the purpose behind this system?

Hi...I need some help here... I need some suggestions and recommendations on J2ME simulators... I'm using NetBeans, BlueCove, Windows 7 I'm working on a project related to bluetooth programming... Thank you in advance....

Does any one have any idea of creating a custom component like the below image instead of using the image itself. I know how to create a rectangle (a rounded one using the xml and not in java) which was discussed in the most of the links but i am …

OK, so I'm mainly a C++ developer but I've been looking into making apps for Android. I haven't used Java before, or done much UI development, so it's a lot to take in at the moment. **There is a question at the end of this, skip to it if you …

Hello, I've recently created a vb.net windows form application which i user the background worker component in it, Now i'm trying to do the the same for smart devices in C#.NET or VB.NET, how to do threading in smart devices , what i basically wanna do is start a loop …

what is the use of string.xml file in android? is it like defining global strings if we have multiple .java files in android application? correct me if i am wrong

serious noob question, but i'm following my android book and it is doing something with a class that extends list activity. is that a file that i have to create on my own, or is that provided once i create a new android project? i can't seem to find it.

Hi all, I want to write to html5 application and convert the web application to adnorid application with phone gap. I think I can handle this, I have found many resources for this. but the problem is now I want to enable my native language keyboad when I run my …

Hi, I am trying to develop a android application which is done using html5. I use phongap to convert html5 application to android apk file. Problem is my native lanuage is not supported by android OS yet. In my app I get datafrom database and print them. when I do …

My webservice which was working fine, all of a suddenly it has stopped working. I see no exceptions in the logcat. I can invoke the webmethod of the service from the browser of my android device but its not working from my android app. here is my code public class …

Can anyone give a simple example for GCM server and how to use it. Thanks in advance

i am having difficulties to have my android app running in the emulator to connect to servers in my local network. i am getting a java.net.UnknownHostException but the servers are resolvable fine from the machine where the emulator is run. thanks for any help on this topic!

I am using sax parser in android and i am displaying the content parsed into a custom list view which even contains an image. The image is loading very slowly and thereby my list which contains 10 elements are displayed after few minutes and even if the list loads to …

Does the number of classes show any impact on the speed of an application? For example if there are more number of classes (or packages) does it make the application to run slow compared to the one that has less number of classes (or packages)? Thanks in advance.

I'm a college student about to graduate, and I would love to get a job in programming. Unfortunately, I chose Information Technology as my major instead of Computer Science which focuses more on programming. I've been watching video tutorials series on thenewboston.com. The first was about 90 videos on basic …

i am using the following code to get the latitude and longitude values of a particular area. public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); List<Address> foundGeocode = null; /* find the addresses by using getFromLocationName() method with the given address*/ try { foundGeocode …

For a mobile application development project what would be the best data communication technology ? is it web service project is better or WCF application project ? any clear reasons are also welcome Thanks Sanjeewa

can i make iphone software/games in windows

can anyone explain this lines please. private ArrayList<View> history; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); this.history = new ArrayList<View>(); group = this; View view = getLocalActivityManager().startActivity("Sales", new Intent(this, SalesRouteActivity.class).addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP)) .getDecorView(); replaceView(view); } public void replaceView(View v) { history.add(v); setContentView(v); } what does the line View view = getLocalActivityManager().startActivity("Sales", new …

can anyone help me out in displaying a calender. I tried out using date and time picker. But i need a way to make the user click a button and on the click of it a calender gets displayed. Any help would be appreciatable. Thanks in advance.

am having a check box in my launcher activity. i need to enable it so that it helps in performing some action using a broadcast receiver. its working fine until and unless i use the back button to navigate back. but now i need to save the state of the …

Hi all, Im new to android and eclipse. When i create a new android project it provides a string call "hello" and the value is "Hello world, Test1Activity" as my project name is Test1. So when i run it the string is shown.No prob there. But if i modify the …

I am going to redo the interior of my truck (a 1998 Chevy K1500 Pickup) and want to mount a Android tablet in the dashboard to replace all my stereo and environment control (maybe vehicle lights too). My plan is to write an Android app to do this, but I'm …

Hi guys I am currently learning WP7 and have a basic app built, the problem is i left it a few weeks back with everything fine. However I have just re-opened it and the forms will not load in Visual Studio 2010. Does anyone know what could possibly be wrong?? …

Hi, i want to start developing app for the andriod paltform and i want to know how to start. i have knowlegded in C#.

i am new to android. While i am running my application, it is running well in landscape mode, but in portrait mode, application is forcefully closed giving the following in log 05-31 16:48:30.958: W/KeyCharacterMap(428): No keyboard for id 0 05-31 16:48:30.958: W/KeyCharacterMap(428): Using default keymap: /system/usr/keychars/qwerty.kcm.bin 05-31 16:50:45.728: D/AndroidRuntime(484): Shutting …

Hi, below is my code for an android app I am developing, I was wondering how I can pass the value of pos from the array adapter to another activity through intent? What I would like is for the code in the next activity to be performed based on the …

Hi all, i am new to android development, in fact its my first application. i am making a simple calculator. i just want to know how to get the value of a pressed button. Any help plz