Mobile Development Forum

Hi, I have been struggling on a project for few weeks but yet, still no fruity result. Having an app that is running on ios ipad. I have a requirement to remove inhouse app if the app was not logged in for x number of days. It is in-house app, …

my activity is load a grid view from xml file and the controls from other xml file public class ResultActivity extends AppCompatActivity { GridView gridview; ArrayList<String> arrayList; String ip, db, un, passwords; Connection connect; PreparedStatement stmt; ResultSet rs; Button TButton; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.gridviews); TButton = …

the scenario as the following, after the user login , the application returns he/she visiting numbers for example : 123 150 i preview the value on TextView , how i can make it clickable, and open pdf file like when user click on 150 open the pdf file the located …

Is there a way to develop a GUI which has graph data structure at the backend so that if we want to have information about a particular node or edge, we just tap its corresponding GUI representation and the app gives us the required info?

Hi guys i am getting the following exception `java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.res.Resources$Theme android.content.Context.getTheme()' on a null object reference --------- Stack trace --------- android.app.AlertDialog.resolveDialogTheme(AlertDialog.java:222) android.app.AlertDialog$Builder.(AlertDialog.java:452) com.skyvin.numr.scanreceipt.ReceiptDetail$convertCurrency.onPostExecute(ReceiptDetail.java:2309) com.skyvin.numr.scanreceipt.ReceiptDetail$convertCurrency.onPostExecute(ReceiptDetail.java:2199) android.os.AsyncTask.finish(AsyncTask.java:651) android.os.AsyncTask.access$500(AsyncTask.java:180) android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:668) android.os.Handler.dispatchMessage(Handler.java:102) android.os.Looper.loop(Looper.java:158) android.app.ActivityThread.main(ActivityThread.java:7229) java.lang.reflect.Method.invoke(Native Method) com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1230) com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1120) ------------------------------- --------- Cause --------- ------------------------------- ` My code is as follows …

Hello! I'm trying to display a list of items in a fragment called AgendaList. I am not quite sure what I missed. Here's what I have under AgendaList onCreateView: public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // Inflate the layout for this fragment View view = inflater.inflate(R.layout.fragment_agenda_list,container,false); String[] …

...I want to start Android app development. Was wondering anyone of you could suggest me the best resources to learn from. I know java but have no idea about Android app development. I hope the resources cover all the basic features that are there in any modern day app like …

Now its almost 6 days and i am trying to fix image upload issue in cordova-php but not able to fix it. I tried multiple solutions from google/SO. But none of them is working for me. I am using the below code as front end. <div> <h3>Server URL for upload.php:</h3> …

i am very keen to learn how to develop mobile apps, but i want to master one programming language. i hear you can design mobile apps for android, windows & ios using Java. Is this true, if you can someone explain the details of doing this in each platform

What is the best platform to use in developing mobile application? Should I set up internal storage?

Hello everyone,I am having no experience in android or mobile app develpment but having some questions is it possible to have app which works offline without internet(devices can be connected LAN) where in each device have data stored of main stock of items which will be updated once in month.Now …

I want to know is it possible to do that and install your own custom software on it ?

I am working on an Android app in which I am submitting some variables in url in order to save the data in database what ever user enter in the text fileds but I am unable to do so as I am getting an error called "com.android.volley,Server error". I have …

Hi, I am working on a blackjack game as a person learning swift. Due to my need to learn the basics of swift before jumping into learning how the view controllers and other mobile-app specific details work, I am making this game in a playground. I wrote a function that …

As what was stated on the header I want to implement either a "paint" or "eraser" function whichever feature more convenient for user to edit paint/censor unwanted parts of a photo displayed on a imageview before uploading it to a server in the edited format and a redo function if …

I am trying to change the background of imageview using the following code. Here's my xml code. <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="com.devnami.maya.maya.MainActivity" > <ImageView android:layout_width="match_parent" android:layout_height="match_parent" android:background="@drawable/forest" android:adjustViewBounds="true" android:scaleType="fitXY" android:id="@+id/view1" /> <ImageButton android:id="@+id/button1" android:layout_width="45dp" android:layout_height="45dp" android:textStyle="bold" android:textColor="#FFFFFF" android:background="@drawable/flower" android:layout_alignParentBottom="true" android:layout_alignParentLeft="true" /> </RelativeLayout> And here's my mainactivity.java …

Hi, I'm looking for a good tutorial or other source I can use to learn how to create calendar view using UICollectionView. I would be happy to receive your help.

have a code that loads an image online with the AsyncImage module in kivy. i wrote the code in python3 which runs well on the pc but doesnt work on a packaged apk. i think this is because i packaged it using python2.7 buildozer. thanks an image showing the error …

Hi guys, Here is the question: I have Activity A, Activity B. Now, A --> B . Now, pressed the home button. Now, go to any image & "open with" will show my app. when pressing my app as the option, it will hit Activity A. When it will hit …

How to recover android phone contacts?

Hello guys... i am a newbie to android development, i tried to load an image from url using picaso and it displays 'node static field, refference cannot be refferenced from static field package io.github.froger.instamaterial.ui.adapter; import android.content.Context; import android.support.v7.widget.LinearLayoutCompat; import android.support.v7.widget.RecyclerView; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.FrameLayout; import android.widget.ImageButton; …

Hi All, I am new to Android developement now i need to develop a OCR application. in that i need to get Retailer name and Total from Expense receipts. for example Costo / Walmart using their Logo in top of the receipt. i need to Train tesseract to understand that …

Hi to all! I made a class named “Database” I called openOrCreateDatabase in in its constructor but it was giving error. Then I searched on internet and got a solution that in case of non activity class I should also pass context. Then I passed context but then I am …

hi to all! i have installed android studio, my sdk path is C:\ androidsdk\sdk\sdk . my android studio installed successfully. but after installation when android studio opens then in event log tab an error message appears: Grade sync failed: Cause: failed to find target with hash string ' android-19' in …

Not sure why but the chronometer counter will start as soon as the application starts without me clicking the button. Does anyone see what the issue would be? package com.example.android.courtcounter; import android.os.SystemClock; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.view.Window; import android.view.WindowManager; import android.widget.TextView; import android.widget.Chronometer; public class MainActivity extends …

Hello All, I am unable to import javax.sound.sampled in a mobile app I have been playing with. I am currently using AndroidStudio and I do have the path pointing to the JDK not the JRE. I was for a while able to import them when I included the jar files …

Hi,I am new to android programming In my app I am launching an another app(whats app,calculator,etc) I can launch any app successfully by using this code: Intent i=getPackageManager().getLaunchIntentForPackage("your package name"); i.setFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT); startActivity(i); But it always created new instance/restarted of the app.I want it to launch and resume it from where …

Hello guys .Plz help I am stucking in my first android program. IDE is Android Studio 1.0.1. "R.layout.activity_main" when i move pointer on 'R' it shows "cannot resolve symbol 'R' ". I have done "restart" android studio. I have done" clean project and rebuild project".

I designed app to make order for pizza food restaurant I show userid,menu id ,address,longtiude,latitude then press on button make order Error show after I press button and found in async task doin background It give me fatal exception error An error occurred while executing doInBackground() and it show to …

Hello to all! I have started learning android recently and I am facing a problem in file handling (in internal storage). I wrote a simple program which creates a file and writes some data in that file . I have two buttons first button writes data in the file and …

hi everyone, i am currently creating an app in android and i used a package from kivy garden;androidtabs but i want to open another screen but it doesnt seem to work from kivy.app import App from kivy.uix.boxlayout import BoxLayout from kivy.uix.button import Button from kivy.uix.textinput import TextInput from kivy.uix.floatlayout import …

I'm a beginning Android Developer trying to learn the file system, etc. I'm hoping to eventually delve into Home Automation and traffic analysis using phones/GPS, but I'm in the beginning arc of this learning curve. My background is mostly C/C++, though I've done some work in Java. I'm not so …

Dear all! Is there any way to animate icons on home screen in android app using android studio like [IPhone](https://www.youtube.com/watch?v=Q9HOne7zLro) provides some effects of motion. There are some apps like clean master on google play store that animates its own icon as user clicks icon of clean master to clean …

Hi Guys Please tell me what are the building blocks of android. Thanks

I'm getting my ArrayList from a service and populate my ListView with it when user creates the widget. I have 3 button on my widget and I want to modify/filter the data in the ListView by button click. I saw examples of pending indent but I couldn't reach my ArrayList …

I keep getting a direct identifier error. I have tried deleting the pillarPlat004 assets and re-importing it and connecting it to the code, but that doesn't seem to be the problem. I'm using swift in xcode.  

Greetings everyone, I'm still new to android programming and currently leanrning how to connect to DB. I'm following a online tutorial but I'm still facing problems. The tutorial is about creat a registration form and sending it to the database through volley. I'm using .hostinger.ae as host and Android studio. …

Hi guys! im working with google places and i'm currently able to show 20 markers on the map. I have a FloatingActionButton on my map screen and once the user presses/clicks on it it should display the markers based on the next_page_token. Currently ive hard coded one in for testing …

Error:Unable to load class 'com.android.tools.idea.gradle.project.GradleProjectSyncData'. Possible causes for this unexpected error include:<ul><li>Gradle's dependency cache may be corrupt (this sometimes occurs after a network connection timeout.) <a href="syncProject">Re-download dependencies and sync project (requires network)</a><li>The state of a Gradle build process (daemon) may be corrupt. Stopping all Gradle daemons may solve this …

Can anyone tell me what is wrong with this? App crashes if user input is left blank. I was hoping it would display toast and wait for input. EditText userWireInput = (EditText) findViewById(R.id.WireSizeInputET); String userWireData = userWireInput.getText().toString(); double userWire = Double.parseDouble(userWireData); if (userWire == 0) { Toast.makeText(ISOM_Int_Results.this, "ENTER WIRE SIZE", …

i am implementing Google Drive in Android with Java code i didnt use Android formats, i just created client id and i used in Manifest <meta-data android:name="com.google.android.apps.drive.APP_ID" android:value="id=344123456789"/> and my code to create folder is credential = GoogleAccountCredential.usingOAuth2(this, Collections.singleton(DriveScopes.DRIVE)); credential.setSelectedAccountName(accountName); service = getDriveService(credential); java.io.File fileContent = new java.io.File(path); FileContent mediaContent …

I have a series of activities the last of which holds results. I have 'Send to Printer' button which needs to send these results to a wireless printer. Can anyone give me an example of doing this? I''ve trawled the web but there seems to be very little on this …

Hi, I am programming an app and facing a problem now. I want to Update my Database over the GUI from my App via PHP. My Problem is that the app always sends the value of the checkbox even if it is unchecked. I will post my Script below. update.php …

So i have been searching all the net but haven't exactly found what I'm looking for and I'm starting to believe that it is impossible. The problem is that I have a local MS SQL Server stored on my notebook. What I would like to do is an android application …

I want to develope app for android which open realtime camera from application and in that i can change different color or shades of lips(Mouth) ...i am stuck .. i wasted so much time in this please revert me back soon

i am a newbie

Hello, I'm using the rotate-layout library by rongi (https://github.com/rongi/rotate-layout) to achieve a horizontal list view by implementing the suggestion given by Kc Ochibili as an answer to this question: http://stackoverflow.com/questions/3240331/horizontal-listview-in-android. I'm getting the following errors when I try to use the library: "error: Error parsing XML: unbound prefix" and "Attribute …

Hello , I want to show some images in my app using php and universal-image-loader-1.9.1 Iam an stater and I have collected some code from another apps, My problem is when i use the same code to add the gallery in my app it was showing application stopped. If any …