Mobile Development Forum

Dear Core Developer, I want to learn android application development. I am newbie in android app dev. Can anyone please help me out that how to develop android mutiple choice questions (professional) application for mobile and/or TAB. here is the link: http://guides.instructure.com/m/4152/l/41477-how-do-i-create-a-multiple-choice-question i need to develope similar type of android …

I am beginner in android programming, I am making a music app the problem I am facing with my app is when my app is minimized and I try to resume the app from the launch icon, splash screen appears for the specified time but after that the android home …

I have done a lot of research on this issue that I am getting, but I am unable to solve this error. Over the Internet, folks are suggesting to use findFragmentBy ID or Tag, but both of them resulting in null Pointer Exception. This is the Code that I have …

Hello, i am planning on designing an airline mobile application with android, as my testing devce. i'm doing this for the first time, can someone please guide me on how to do this? All help wiil be appreciated

I have an app that uses GPS proximity alerts. I want to populate two textviews from my string.xml when the proximity alert fires off. Does anyone know how to do this?? Thanks, hendo

Hi I am trying to use a quickaction bar to parse contact address as a string from an android fragment to the other fragment. Any help?

Hi all, Is it possible to use cloud storage services such as google drive or dropbox to be used as an online storage for my app? I am developing an app which will be using an online server or storage to retrieve media files like videos and pictures. I dont …

I am creating a couponing app where coupons are stored in a database and compared to local ads to let users know when to use the coupons. I have created a database that holds all of the coupons and also one for the user's personal library. I am having difficulty …

Hi all, I'm writing a scavenger hunt app and want to use the Proximity Alert functions. I'm having a hard time to finding any decent tutorials to help me with this. Does anyone have a code snippet on it's use that I can go off of? Much appreciated, Hendo

Guys,i face problem while starting Android studio after installation. Error Msg is "The environment variable JAVA_HOME(with the value of c:\Program Files(x86)\java;) doesnot point to a valid JVM installation" Whereas i set path of java in system variables for JAVA_HOME C:\Program Files (x86)\Java; path C:\Program Files (x86)\Java\jdk1.8.0_40\bin ; give me solution

Good Afternoon Everyone. I have written this code in Android studio and the purpose of it is just to move the button to the bottom-right corner of screen with small delay. However, for some reasons, The button does not move. Any help is highly appreciated. package com.xdroidcompany.transition; import android.support.v7.app.AppCompatActivity; import …

I am working on an app where i would scan a coupon and it would find the matching upc in a sqlite database that i have created and place all of the details from that table into a new table for my personal coupon library. I was getting an error …

Hi i made a jquery mobile website, but when i upload it to Phoegap and test, i can't connect to the database. I'm using the Dreamweaver login form in php, and loading from a database. Code to load from database: <?php // *** Validate request to login to this site. …

Hi guys what is the difference between developing android application using jdeveloper and eclipse?

Hello guys , am new to Android Development, I've created many test apps for learning, using webview and lists and creating multiple activities, I have an application that get URL with JSON data contain url with streaming video and when click on button open VLC with URL provided. JSon FILE …

hello guys, am very new to android development, ans am trying to do my best to learn it,I have json output created from one of my PHP projects here is my output [ { "id": "1", "name": "BEiN HD 1", "link": "http:\/\/www.mysite.com\/tv4.ogg", "image": "http:\/\/www.mysite.com\/images\/jsc8.png" }, { "id": "2", "name": "BEiN …

i use the below code to create file in android but the files are not created when i use android version 4.x but when i use version like 2.x the code working fine and the files are created File path = new File( Environment.getExternalStorageDirectory()+"/FullDuplexCall/"); path.mkdirs(); try { sendfile = File.createTempFile("sendfile", …

Hi all, I followed a tutorial on using the action bar and i face problem trying to split it. All my items just get fitted in to the overflow menu. Please help me with it. Below is my code: AndroidManifest.xml <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.androidapptutorial" android:versionCode="1" android:versionName="1.0" > <uses-sdk …

Below is the code i am using to create dropdown using listfields.In this i am able to create dropdown with hardcoded data binded to listfields with no Problem,but when i bind data from webservice when i clicked on horizontalfield(dropdown),first it shows the null pointer exception(White screen),by clicking middle button of …

Hi all , I create a small VoIP application to transmit voice and I want to calculate delay so I need both devices to have the same time if you have an idea to calculate the delay or to synchronize the two devices I will be gretaful for any help

i was developing an app for android where by clicking on buttons i could control the digital state of an Arduino board. Arduino responses with a xml file created in runtime and, by fetching its contents, i'd like to display the actually state of the pins. Now, i could realize …

How to connect MySQL database in Eclipse on android application?

I've been having this issue for a while and can't figure out how to fix it. I have one activity with four fragments. I'm having an issue with one fragment. I have a button on this fragment that when pressed needs to add another button. This works. However when I …

I am working on an application that will let a user make a graph using the number of hours that the user has slept. Currently the attached code will take the input and make a graph expecting an integer values from the user. I want to be able to instead, …

I have a problem with Eclipse when i try to start emulator it says: Starting emulator for AVD 'Nexus_5_API_21_x86' emulator: ERROR: x86 emulation currently requires hardware acceleration! Please ensure Intel HAXM is properly installed and usable. CPU acceleration status: HAX kernel module is not installed! I tried to instal HAXM …

Im android developer < I started with android without abase of java. well I worked as android developer for a year but I feel that my skills not improved very well after a year just like something missing. my question is: if I focuse on learning android gonna make me …

hi all, i create full duplex application to transmit voice using udp protocol , i use AudioRecord to record voice and AudioTrack to play it but i hear echo

I am a newbie in Android App Development. I have designed basic apps like a simple notepad but I don't get pretty good tutorial books on how to do it. Would you please recommend me a link where I can get awesome notes on the same. Thanks

Hello there! I'm trying to understand some basic android animation programming using Android Studio, and I have followed some tutorials on the internet. I already know some basic java programming, but I have a problem with my "copy/paste app" I made from youtube. This is my MainActivity: public class MainActivity …

Im designing a app that after press a button textblock1.text goes with "YES" if press an other it goes "NO" how to make it save that text when close the app and show the some text when app load? and on visual basic

Im trying to develop a Android game, the problem is that after like 2 min of playing my game start to lag until it freeze forever I wont put my code cuz i dont want to bother that much and its large and i dont know even where the problem …

Hey everyone! I'm brand new to Android and have been working on a very basic app that just takes a picture with an image overlay and saves it. So far I have figured out how to get the camera preview, take a picture, and do an image overlay on the …

Hello all: I'm teaching myself Android, using Android Studio, and when I try to run the emulator, it doesn't start up. In otherwords I see the mock device, but the start (home?) page does not appear. I've waited the customary 3-5 minutes and I've even tried creating different emulators, but …

how can i access the contacts on the device then show it in list

Hello i have a website and i want to make it an app. I use php and mysql. What is the best way to start?

Hello i have a problem. I am trying to make my website an application. I am having problem on the login page. I made the connection with the database but i cant log in as a user. this is the code. Can anyone help me? <?xml version="1.0" encoding="utf-8"?> <s:View xmlns:fx="http://ns.adobe.com/mxml/2009" …

Hello everyone, I am trying to connect my android application to MYSQL database. I have used the following: MYSQL already created database test (accessed via xampp using localhost/phpmyadmin) Created a table named as student in the database test consisting of Name and Roll No columns and 2 records. A user …

I am using Eclipse helios and Android 4.1.2 i have followed the following documentation https://docs.google.com/document/pub?id=19nQzvKP-CVLd7_VrpwnHfl-AE9fjbJySowONZZtNHzw and done the coding exactly as described in tutorial.when i run my app on emulator it shows "This app wont run unless you update google play services" but on real device which is sony xperia …

I have windows 7. I know C# and web services (HTML, CSS, JS, ASPX). I want to develop mobile apps with my skills for iOS (the most important option) and android. I'm looking for a studio platform that I could develop there with my skills, something that I can build …

i want to record voice then play it at the same time but when i use the below code i got delay and echo of the voice and some noise i will be grateful for any help int bufferSize = AudioRecord.getMinBufferSize(frequency, channelConfiguration, audioEncoding); AudioRecord audioRecord = new AudioRecord( MediaRecorder.AudioSource.MIC, frequency, …

hi i'm a new android app beginner.i was wondering if anyone could help me to solve the issue here: public class MainActivity extends Activity { BluetoothAdapter adapter = null; BTClient _bt; ZephyrProtocol _protocol; NewConnectedListener _NConnListener; private final int HEART_RATE = 0x100; private final int INSTANT_SPEED = 0x101; @Override public void …

hello, i would like to ask if it is possible to write a browser that it capable of develering a full but smooth javascript experience on a phone with for example a single core processor, 200mb ram and 30mb of free internal memory on sites such as tv.jw.org or touchdevelop.com …

Hello I had put a question before about the editions of Java and the difference between them and the reason for my question is that I want to work through an android project and I think that before beginning in the project I must know how to write code in …

in chat application ,, Two friends x, y (used the same device) x Send to y message then stored in database x make log-out of the application and y log-in application and open chat and received the message here the message stored twice on the local storage and this is …

Hi i want to develop new android appliacation with out any programing code it means don't want to write any code for this application,is there any possible to do this one and please tell me what are the web sites i have tpo fallow for done these things.

hello all, I am working on android project. i have started background music in one of my activity named"myMainScreen.java" now on that activity i have put one button. while clicking on button i will redirected to another activity called"page_play.java" through intent. Music will get stopped on the second activity(page_play). but …

i want to start developing ios apps on my lap (windos) i dont have mac so how can i start