Tagged Questions

0
votes
1answer
12 views

Pass javascript object to java's JsonObject

I am trying to pass some simple javascript object from my Parse.com cloud function (back-end)to my android application. Here is the code of the javascript class: function Rate() { this.avgRate = ...
0
votes
2answers
28 views

How can I stop my activity from being destroyed when I rotate the emulator?

I currently have two activities: MainActivity and DisplayActivity. When I run my application and rotate the emulator, the activities get destroyed. How do I make sure that my activity doesn't get ...
0
votes
0answers
17 views

How do I pass two results from separate AsyncTask inner classes to the same method in the main activity?

I hope I explained this issue correctly in the title. I have some inner classes that extend AsyncTask to read some JSON data and parse it. I have two separate ones for each search query the user ...
0
votes
0answers
12 views

How do I use a global reference across JNI calls

I have to use assetmanager in Android to open some files. I am using the Assetmanager to open a lua file. To that end, I create a luastate in an init function in JNI using AAssetmanager. I then use ...
0
votes
3answers
37 views

Type Conversion: Byte[] to String , String to Byte[]

I'm trying for educational purposes, use the camera of Android to get a photo and send this to a webservice using SOAP. First, the camera send me a byte[] but this isn't serializable and I can't send ...
0
votes
2answers
57 views

Parsing a string to calculate numbers

I have a string like: 2+4*4/2, the string can be longer or shorter, but in both cases I need to parse it and calculate the division and multiplication first before the addition and subtracting. What ...
0
votes
2answers
21 views

main activity does not wait for sub activity to finish

I'm quite new to Java and Android, so be gentle :) I trying to start ActivityForResult to enable bluetooth, but seems that main activity keeps running and executes getPaireddevices without wiaitng for ...
0
votes
1answer
10 views

DialogFragment created by an event from a button in a custom ArrayAdapter always has same position

I'm a newb so try to be patient with me Here is some background information about the problem I am having: I have a fragment, ViewFragment, that consists of two components: a Spinner and a ListView. ...
0
votes
0answers
16 views

ListView system overlay using viewgroup

I'd like to create a ListView overlay using ViewGroup. I've made overlays before but I can't get ListView to work with it. So far this is the logcat Error I get: D/AndroidRuntime( 696): Shutting ...
-1
votes
3answers
37 views

how to parse JSONArray in android

I want to read this JSON lines but because it start with JSONArray im a little confused "abridged_cast": [ { "name": "Jeff Bridges", "id": "162655890", ...
0
votes
0answers
23 views

Getting NullPointerException on context.getPackageManager() - not sure why

i am trying to get a list of social media clients on a phone in my Android code. i cant see why, but i am getting a nullpounterexception at the init'ing of List Do i need permissions in manifest to ...
1
vote
1answer
26 views

Android sql database

I try to connect from eclipse emulator android to an sql server using this code: import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.Statement; ...
0
votes
1answer
46 views

How do I save a string in android and recall it afterwards?

Beginner question, but I have been looking around about SQLite and internal date storage but basically I didn't understand anything in the past half hour. I want particular strings to be saved, ...
0
votes
1answer
27 views

Android sql database connection

I try to connect from eclipse emulator android to an sql server using this code: String driver = "net.sourceforge.jtds.jdbc.Driver"; Class.forName(driver).newInstance(); String connString = ...
0
votes
1answer
21 views

Returning JSON from WCF after POST in Android

I just started coding for my android application and I am unsure of how I should start coding. If I want to do lets say a login in my android application. How should i start? Is it possible if I do ...
0
votes
2answers
33 views

Service App stopped working

I'm trying to create a simple app which just do a simple job: I press "Start Service" button and Toast appears with a TextView changed(same with Stop Service). But when I trying to run app, I get ...
0
votes
1answer
26 views

Android multiple shortcuts

This link: http://www.kind-kristiansen.no/2010/android-adding-desktop-shortcut-support-to-your-app/ teaches me how to create a shortcut to any of my app's activities. However, when you look at your ...
0
votes
3answers
55 views

To check if string contains particular word

So how do you check if a string has a particular word in it? So this is my code: a.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View arg0) { ...
0
votes
0answers
24 views

android JSON parsing How to make two http Connection one after the other

Im using Rotten Tomatoes api and for some reason if i want to get more information about a movie like the movie director or the studio I need another http page. this is the url that im getting ...
0
votes
0answers
20 views

How can I code a client-server Java program that uses the client computer's monitors as second or third monitors for the server one?

In short I am interested in a Java code that allows a computer to: 1) think it has a second monitor (virtual monitor without having a device atached) 2) regulairly extract pixel information from ...
0
votes
1answer
39 views

JAVA is required to run android project in eclipse for windows 7 [duplicate]

I am newbie to android so i wonder java installation is required to run android project from eclipse SDK ? If it is required then i already installed it. Then why i am getting this error:Error while ...
1
vote
1answer
17 views

How to re-enable screen dimming?

I needed to keep screen on while displaying my application so I disabled Dimming using this code : getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); the problem is that when I ...
-1
votes
0answers
16 views

how to rebuild R.java in internet build of android studio

can anyone share a way to make internal build to recreate R.java in the build folder? only the external build does it for me and it's broken in 0.1.5
0
votes
0answers
14 views

MediaRecorder.getMaxAmplitude returns always 0

I'm new in Java and my English isn't the best too. I want to write an app which meassures the Amplitude of a record. The app works except for the fact, that the amplitude is always 0. I have now read ...
0
votes
2answers
34 views

fraction of value gets increased each time

// Grams to Pounds and Ounces public static String convertGramsToPoundsAndOunces(String grams) { double weightInKG = Double.parseDouble(grams) / 1000; double pounds = weightInKG / 0.45359237; ...
3
votes
1answer
52 views

Did anyone compare performance of Android apps written in Xamarin C# and Java? [closed]

I came across Xamarin claims that their Mono implementation on Android and their C# compiled apps are faster than Java code. Did anyone perform actual benchmarks on very similar Java and C# code on ...
0
votes
1answer
34 views

Calendar returns wrong milliseconds after Calendar.add()

final Date now = new Date(); Calendar c = Calendar.getInstance(); final Calendar cal = Calendar.getInstance(); cal.setTime(now); cal.add(Calendar.HOUR_OF_DAY, 3); SetTime(c.getTimeInMillis()); ...
0
votes
1answer
30 views

Save ListView data and get it back on application start

I have a simple application with one activity containing listview in which data is loaded with a custom adapter and some json content fetched in an asynctask, minified code below Main.class ...
0
votes
1answer
33 views

trying to fetch a textView from another screen in android

I have a home screen a data screen and a database. The user makes a selection on the home screen, the database then performs the actions to display this on the data screen by fetching the textViews on ...
0
votes
3answers
42 views

Android welcome screen waiting too long?

I'm new in Android development, every time when i try to start mine application, i need to wait very long? I have low PC perfomance, but i see that peoples with much faster PC's has same problems. ...

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