Mobile Development Forum

My android widget for OIS(online information system for our college) project is going on.While i work on my ideas regarding this i wanna make it unique by adding some interesting and new features which was never used in our college OIS. Following are my ideas.By now i have developed the …

Hello. I am designing a calculator app as part of a project. I have all the buttons inserted in the correct order. My problem is that the last column of buttons horizontally fills up the rest on the unused screen. As the device size scales, the more and more the …

Hello Daniweb, I will soon reach the point where I'm ready to move on my journey of programming. One thing that has always interested me is the mobile world. I would like to develop things for the mobile world. What I want to ask/know is tips from people already developing …

Hi, I'm new to mobile development. I recently came across phonegap and i wanted to know if PhoneGap would actually be able to build my mobile apps faster. I'm a PHP developer and i use CI for my development. So is PhoneGap something like CI for mobile app development? I …

I am looking forward to learn android app creating and developing. Can anyone suggest me from where i can learn via online in free of cost?

To develop an app which can access real time data from the camera (i.e. when the video option has been activated or to take a picture every 3 seconds for some kind of analysis to be carried out on that image. At the moment my interest just lies in whether …

I'm new to android (and in general) mobile app development. When it comes to setting an event listener to, say, a button, what is the difference between setting it in the xml: `android:onClick="blah"` and setting it in the .java file btn.setOnClickListener(new View.onClickListener) Any particular time when i should use the …

Hi i'm a beginner in android mobile development. I have a question regarding sqlite(Android)... Is there a way for me to be able to import text file onto database other than making it hardcoded..? or if there's not, how can i populate my database if i have a string formatted …

So I am interested in making apps for smartphone, like little games etc I need help because I'm not really sure where I should start, what languages I should learn etc Please could you all help me? Thanks :)

What is the code or what is the simplest way (with explanation, because im a little bit confused) in making an android application automatically adjust it's screen size layout depending on the android device used?

i want to start developing on windows mobile app, which enterpretter should have to use???

Hello.. I'm thinking to create an android apps.. but I have a question on how to online the apps? for example updating the info or data. and updates some news about the weather. is there a server to online the apps?

I want to work with the json below in andoroid, but I am getting an error in my app.I will be working extensively with the yummly api but the data i need resides in the matches array, but I am not sure what is the problem. I have also attahed …

I have an image view in my android application. I want to set the picture dynamically from a link. Example: The user has an id number of 0920305 The image from http://teachers.usls.edu.ph/student_pics/0920305 will appear on the image view.

I am trying to create a triangle in openGL 2.0 but some some reason background is shows up but no triangle. I am following this tutorial: http://developer.android.com/training/graphics/opengl/environment.html i have the same code as on tutorial but for some reason the triangle is not showing up. may be i missed some …

Im going to start learning android java so can anybody please tell me the good book for learning android for beginners?

This is my code. I don't know exactly why the program doesn't work. If I press the button, it should display the corresponding quote and its author. But nothing is displayed. After experimenting, I found out that the try clause of the exception DIDN'T REALLY work. I need help on …

why my app is crushing after passing the seconds ? new Timer().schedule(new TimerTask() { @Override public void run() { Health -= 1; if(Health <= 20) { if (!canSeeWarnDialog) { final AlertDialog alertDialog2 = new AlertDialog.Builder(MainActivity.this).create(); alertDialog2.setTitle("Im hungry"); alertDialog2.setMessage("The dog health is going low " + "\ngive him some food"); alertDialog2.setButton("Got …

Hi there, here is the code... <script type="text/javascript"> function ajax_json(){ var hr = new XMLHttpRequest(); var url = "news.json"; hr.open("POST", url, true); // Set content type header information for sending url encoded variables in the request hr.setRequestHeader("Content-type", "application/json", true); // Access the onreadystatechange event for the XMLHttpRequest object hr.onreadystatechange = …

hey, can some one help me with two things? first getting a error on "Animation animationObj" error:Animation cannot be resolved to a type 2nd i am trying to make a templet for making android games. this is what i have so far. two classes. one does the animation and other …

Hello, I would like to learn android programming, but have no knowledge in java whatsoever. Do I need to go through a java course first before starting with android, or is there a way to start programming directly with the latter?

How to make [Java Websocket](http://java-websocket.org/) work with [Hessian protocol](http://java.dzone.com/articles/hessian-web-service-protocol)? I need both server and client using Hessian to communicate, but I don't know if it is possible and what to do. Thanks.

Aside from the energy requirements awareness/limitations (does any Java programmer really try to be aware of them?) and the obvious lesser speed and memory limitations (does anyone try to program inefficient code just b/c a PC is more powerful?) What are the differences between PC and mobile program development? And …

error: No resource identifier found for attribute 'entriesValues' in package 'android' line: <ListPreference error: Error: No resource found that matches the given name (at 'entries' with value '@strings/list'). line: anroid:entries="@strings/list" error: Error: No resource found that matches the given name (at 'entriesValues' with value '@strings/lValues') line: android:entriesValues="@strings/lValues" res > xml …

Hi all, I have a .json file on a server. And I had simple app(phonegap) built which I uploaded into build.phonegap. So my question is will my app be able to pull data from .json file which is on a server? Regards layman114

Hi, I have created a fragment that contains code for a camera preview. I am now trying to create an activity that will look after taking the picture etc.. Here is my cam preview related code from my fragment (this works just fine) preview = (SurfaceView) view.findViewById(R.id.preview); previewHolder = preview.getHolder(); …

trying to create menu in android but having a error. i am 98% sure my code is right. can some one take a look and let me know if there is a problem they see. res > menu > main.xml <menu xmlns:android="http://schemas.android.com/apk/res/android" > <item android:id="@+id/action_settings" android:orderInCategory="100" android:showAsAction="never" android:title="@string/action_settings"/> <item android:id="@+id/newGame" …

my r.java file in android is not updating. i already tried: 1 - clean project 2 - refresh / restart eclipse/computer 3 - all my string are in double quotes

Hello, I have a Ruby On Rails app online which uses devise authentication. I am trying to make an android app which make a request from ror app when a user try to log in (so the users can use same account from ror app). I heard that what I …

Hi everyone, so I'm developing this app for android, I'm using "Android Studio" to code it and it's layout, but there's the thing, I can't seem to make the layout as I want, like the buttons are too huge or they aren't in the correct position and they're always messed …

This is my xml layout for the log in page <?xml version="1.0" encoding="utf-8"?> <ScrollView xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:fillViewport="true"> <LinearLayout android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="wrap_content" android:paddingBottom="@dimen/activity_vertical_margin" > <!-- Logo --> <TextView android:id="@+id/headText" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="60dip" android:textSize="45sp" android:fontFamily="sans-serif" android:textColor="#FFFFFF" android:textStyle="bold" android:layout_gravity="center" android:gravity="center" android:text="@string/logo" /> <!-- Email TextField --> <EditText android:id="@+id/loginEmail" android:layout_width="fill_parent" android:layout_height="wrap_content" android:inputType="text" android:hint="@string/username_text" …

ok i was working on simon says app...here is the codes ...something is giving me nullpointerexception...i have trying to think for hours and cant seem to find anything to correct on...please help Here is the Main.java package com.gagan.simonsaysreplica; import android.os.Bundle; import android.app.Activity; import android.content.Intent; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; …

Hello everyone, I am currently working on an Android application that I hope will one day link to the Quizlet website so it can download flashcards from their website: https://quizlet.com/api/2.0/docs/ and people can use them, otherwise this app is just going to be a menu. This is the first time …

i want to know what IDE, basic knowledge of language is needed for development of android apps?

Greetings, I'm a software development student and over the summer break I decided to make an Android app, figure the best way to improve as a programmer is to program. What I'm trying to do is search a website for information (i.e. search wikipedia for the release date of Superman …

Hello All, Kindly let me know if somebody can help with letting me know what kind of messages should be sent toward the mobile handset to display the Voicemail Notification Icon on the top of the mobile screen? Seems it's not an ordinary SMS which should be sent but some …

Hello, i am using nokia 6300 mobile handset. And i want to download new operating system supportable to it through mobile internet. Is it possible? If it is possible then please give me a link of the same.

Hi guys, I'm trying to make an app for iOS, Android and BlackBerry 10 that allows users to add frames to pictures. This is suppose to be a learning experience kind of thing for me! Anyway, I'm wondering what the best image editing libraries are for each platform.. Basically, I'm …

Hey guys. I'm making this android app called GPS Buddy. What I want it to do is to send my gps coordinates to a phone number via a text at a set interval. The problem that I am running into is fairly simple. I have all the barebones stuff done, …

This is the code I have built so far. The shake detector is complete and works, I just don't know what to write for the execution code at line 26. I have 10 images stored in my res/drawable-hdpi folder, entitle 1-10 and I want to change between them randomly when …

hi all i have s3 and i cannot open it because i think during the update the battery was died know i want to open the recovery mode i press the volume down and home and power but it does not open

Hi, my app that I am making is not working. Here is the code: package com.awsomechat; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.util.ArrayList; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache.http.client.HttpClient; import org.apache.http.client.entity.UrlEncodedFormEntity; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.DefaultHttpClient; import org.apache.http.message.BasicNameValuePair; import org.json.JSONObject; import android.os.Bundle; import android.app.Activity; import android.content.SharedPreferences; …

error on lines: setContentView(R.layout.activity_main); getMenuInflater().inflate(R.menu.activity_main, menu); error: ----- R cannot be resolved to a variable package com.example.android_01; import android.os.Bundle; import android.app.Activity; import android.view.Menu; import android.widget.EditText; public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; …

hi, I've developed an anroid app for API level 10 which corresonds to android 2.3 as far as I know. But when I try it on a phone with 2.3.6, the app doesn't show correct results. Is it because of different RAM and CPU speeds?? How can I make the …

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.

Hi All, I am interested in developing a desktop application which takes a mobile number as an input and able to find out the current exact location where the device is. I am java developer and having little idea in Android. Note : No specific tracking apps are installed in …

I'm moving onto android dev from a year of experience with Java. I want to build an app which scrolls randomly through about 40 photos when you shake it. I've already built a `ShakeDetector` class and `onShake();` method I'm unclear how I would build the class to manage the photos. …