[android] Forum Topics

how to user select spinner json through submit report for date to date and select user name how in androis studio

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 …

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 = …

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 …

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

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 …

In Andrioid OS mobile, if you drag from top there will be many unread notifications, it is said that they are called push notifications. But in my mobile i am getting many such spam notifications every hour like movie updates etc, which are not required for me. How to disable …

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 …

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 …

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 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".

The Google Experience Launcher, as it was, first arrived exclusively for the Nexus 5 towards the end of last year. That changed recently when the renamed Google Now Launcher (GNL) appeared in the Play Store as a standalone app for Nexus devices and those handsets running Google Play Edition (GPE), …

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 …

Hi, I have been working on JNI. I have one doubt. When I call any native method from android activity (Java code), then we get jclass object from jobject instance we get in the native method as a parameter. Why do we need it actually? Here is a snippet from …

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 …

What is the exact reason that Iphone is more costlier than Andriod phone like samsung or other brands with china hardware. I have not found any difference between two phones. Many andriod phones have same outer design like iphone.

I created webview app using Android studio..I created that app for download wallpapers. but when loard web site through the web view download button dosent work..how can I alow download button to work

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 …