Android :: Changing Variable Affects Indirect Variable (value Vs Reference)

Sep 26, 2010

Is copying the reference to the object and not the value of the object. Meaning, when I modify or pos.bottom, the original object gets modified. I'm guessing I am missing a concept of pass object by reference vs value here which I thought I understood. What is the fix here? Is it a problem with how I defined my custom class?

Android :: Changing variable affects indirect variable (value vs reference)

Android :: How To Use URL Variable To Load Webview ? Not Using String Variable

Nov 3, 2010

these is how to give a string as argument String link =" /devnet/acrobat/pdfs /pdf_open_ parameters.pdf"; webview.loadUrl(link);But how to give an "URL" variable to load its content to webview.

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Android :: Variable Cannot Be Resolved

Apr 6, 2010

I am trying to create an item list, diffrent for each i and j variable. My code is: I get an error in the line .setItems(items,: items cannot be resolved I think that the compiler thinks that the CharSequence[] items may not be initialised or something. How can I make this programme run?

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Android :: Passing Variable From One Class To Another

Nov 15, 2010

I am working to set a countdown timer. I have successfully (borrowed) a number picker (spinner) and set up the dialog box for the user to set the time. This is in a class called timepickactivity and the variables are hour and mins ( and I want to call the set values ( and from the dialog (timepickeractivity) to the actual countdown class (countdown) but I can't figure out how to get the values.

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Android :: Set Classpath Variable In Eclipse?

Oct 18, 2010

Has anyone set the Classpath variable in Eclipse?If so, where is it?

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Android :: Fetch My Xml Through XmlName Variable?

Jul 29, 2010

I have some xml files, and I keep them in raw folder. Now, the problem is that I have to use them with variable name according to my application condition. But I don't know how to fetch them. The main thing is that I am not getting that how to give the path of my xml file in application.

For example:

My file application.xml is stored in the raw folder and I have to access it with a variable name.

String xmlName= application.xml;

How can I fetch my xml through xmlName variable?

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Android :: Condition Variable Usage

Apr 21, 2009

I'm trying to use a Condition Variable to control the execution sequence of two threads. I can create a Condition Variable in one thread and block on it. But I would like to be able to access it from another Thread and unblock it from that thread.. ? Blocked Thread i am planning to keep as GUI thread and it should update the messages which are sent by b/g thread on the screen during its block state and will be unblocked by b/g thread in the end by calling open(); method.

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Android :: Getting Variable Out Of Public Void

Apr 21, 2010

I have this code:
hubSpinner.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> parentView,
View selectedItemView, int position, long id) {
final MediaPlayer mp2 = MediaPlayer.create(Textbox.this, R.raw.hero);
mp2.start(); } public void onNothingSelected(AdapterView<?> parentView) {
} } );

(The code basically runs when a new item is selected of a spinner and then plays a song, which later will be a variable based on what was picked, but I'm fine as it is for now). And I want to be able to use 'mp2' out of this public void, (I want a button which pauses it). How can I do this?

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Android :: Variable Speed Audio?

Dec 15, 2009

Anyone know of an audio player that will speed up the playback? It would be nice if it could keep the pitch the same but sped up is the goal. I used TCPMP on the Treo. This is great for listening to podcasts in a fraction of the time. Depending on the original audio, I can generally make everything out up to +25%.

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Android :: Variable Number Of Settings

Sep 7, 2010

I'd like to make a preference screen with a variable number of preferences, very much like the WiFi selector. A number of profiles should be clickable and possible to edit and in the bottom there should be an add profile button. Has anyone got any tips on how to accomplish this? All I've found is this: /group/android-developers/browse_thread/threa.

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Android :: Static Variable Instantiation

Apr 1, 2009

I have noticed in my application(s) that after a call to Activity.finish() that the static variables that I declared in my classes still hold the values that they were changed to during the activity's life cycle. Upon the re-launch of the activity, the program does not re-instantiate the variables as declared or set them to the default java behavior. Is there something that I can do to cause this to happen, other than re-setting every static variable in my application?

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Android :: How Do I Refer To Drawable With Variable

Sep 13, 2010

I am doing an app related to football. I have a list view that will have various rows representing teams. In my custom array adapter I want to write some code that will present an icon for the team represented by the row. I have a drawable resource for each team (for instance for Indianapolis, Ind.png). In my code I can't refer to "R.drawable. Ind" because the Ind part is dynamic. That value would be in an array, like TeamArray[position]. As I expected, I certainly can't use R.drawable.TeamArray[position] because it won't even compile, it expects a literal name from the drawable folder. Is there a way to do this?

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Android :: Variable OnClick Listener ?

Jun 25, 2010

Is there a way to have 1 onClick Lister for many buttons where I can toss a case statement to do things based on what buttons were clicked.

I know I can make 100 different listeners for 100 buttons but I have to think I can create some nifty variables to do it in less lines of code.

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Android :: ImageButton SetImageResource From Variable

Jul 11, 2010

I want to setImageResource for an ImageButton programatically, based on a variable.

For eg: if size=5, I want to setImageResource to R.drawable.five if size=6, I want to setImageResource to R.drawable.six

Unfortunately, I have too many of these, so an if-else or switch gets tiring.

Is there a way to achieve something like: R.drawable.size?

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Android :: How To Set And Use An Environment Variable In Test

Sep 17, 2010

For now I've used the classic export command to set an environment variable and tried to read this variable from my test with System.getenv() function, but it doesn't seem to work. how to set and read a system variable in an Android application?

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Android : Way To Get Variable Values Back?

Feb 6, 2010

I seriously need help with a quite strange problem. I created a client which communicates with a server. Therefore, I have three classes. An activity providing a nice dialog to configure some data, a background service which checks the connection status periodically and a server class which handles the socket connection. Originally, the background service owned a server connection object but because I could not manage to provide data from the activity to the service, I decided to create the server connection class as singleton. The user is now able to change data in the activity (IP, Port, Username, Password) which shall be transmitted to the server object, if the save button is pressed. The data is read correctly, the activity calls the setter of the server class and the logcat also says that this data is correctly applied to the variable that stores the data in the server class. However, if I try to start the socket connection still the old values are stored in my variables although they've been overwritten before. What I am doing wrong, or how can I fix this?

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Declare Global Variable In Android?

Jan 31, 2012

How is declare global variable in android...some link send searched various post..but am not clear about dis concept...send me valuable link..

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General :: Set Environment Variable In Android?

Feb 29, 2012

Today i installed nano on my android device. it works but i have to set the following variables manually in the terminal emulator:


export TERM=linux

is it possible to set this variables automatically when the phone is booting?

Android Version 2.3.4

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Android :: Passing An Order By Setting Variable

Jul 24, 2010

I have a list view with several columns; things such as name, date, etc. I want to be able to click on the header TextView and sort the list by that field. When the list loads the variable works, and a list is queried and sorted by the field _id (no surprise other than it works), but when i click on the header TextView I get a force close:

Thread [<3> main] (Suspended (exception SQLiteException))
ViewRoot.handleMessage(Message) line: 1757
ViewRoot(Handler).dispatchMessage(Message) line: 99
Looper.loop() line: 123
ActivityThread.main(String[]) line: 4595
Method.invokeNative(Object, Object[], Class, Class[], Class, int, boolean) line: not available [native method]
Method.invoke(Object, Object...) line: 521
ZygoteInit$ line: 860
ZygoteInit.main(String[]) line: 618
NativeStart.main(String[]) line: not available [native method]

The TextView gives no errors when not changing my orderby variable.
Setting Variable:

private View.OnClickListener NameSortbtnListener = new View.OnClickListener(){
public void onClick(View v){
} };

Populating List:
private void fillData() {
Cursor notesCursor = mDbHelper.fetchAllJournals(sort);
String[] from = new String[]{journalDbAdapter.KEY_JOURNAL_TITLE,
journalDbAdapter.KEY_LOCATION, journalDbAdapter.KEY_JDATE,
int[] to = new int[]{,,,};
SimpleCursorAdapter notes =
new SimpleCursorAdapter(this, R.layout.notes_row, notesCursor,
from, to);

Query (In DB Adapter):
public Cursor fetchAllJournals(String sort) {
return mDb.query(DATABASE_JOURNAL_TABLE, new String[] {KEY_JROWID,
KEY_STEPS},null , null, null, null, sort ,null);

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Android :: How To Access Phone Drawable By A Variable?

Jul 10, 2010

How can i access an Adroid drawable by a variable?

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Android :: Variable Rate Audio Playback

Mar 14, 2010

I'm new to development on Android and thought maybe you could shed some light on my problem. I'm trying to code up a little object to take care of playing a list of songs at a constantly varying playback rate. I just spent a god chunk of time getting it going with SoundPool only to find out about the undocumented 1 mb file limit. Do you guys have any ideas? Should I be using AudioTrack? I was going to try that next. Any tips or code samples for doing this kind of thing? It's such a shame that neither JetPlayer nor MediaPlayer support rate changes.

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Android :: Save Variable And ArrayList Of Object

Dec 1, 2009

I created an application with loging and an arraylist to fill a ListView.

If i am calling or i need to check my mail, sometimes i lost the context of my application (variables and the listview !)

It is a little complex to save arraylist in SharedPreferences and i am not an expert in SQLite.

Do you know a solution to keep persistent my data (variables and the arraylist) during the use of my application?

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Android :: Returning A Variable In A Public Void?

Apr 20, 2010

I'm a bit new to programming Android App's, however I have come across a problem, I can't find a way to make global variables -unlike other coding like php or VB.NET, are global variables possible? If not can someone find a way (and if possible implement the way into the code I will provide below) to get a value from the variable 'songtoplay' so I can use in another Public Void...

Here is the code:.............

Basically, it gets the value from the Spinner 'hubSpinner' and displays it in a Toast. I then want it to return a value for string variable 'songtoplay' -or find a way to make it global or useable in another Public Void, (Which is will a button, -loading the song to be played)

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Android :: Print A Variable On Eclipse Console

May 2, 2010

I wanted to print the value of a variable on the console for my debugging purpose but system.out.println doesnt work.

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Android :: How Do I Load URL That Requires Login Into Variable

May 1, 2010

I am trying to port my usage meter from a JavaScript Gadget (win) / Widget (OSX) to Android. Total newbie when comes to JAVA + Eclipse + Android 2.1 SDK. Essentially what I want to do is load a page, pass through a username and password and load the resulting page into a array that I can then run some regular expressions through.

My code from JavaScript (I've replace the actual URL with a dummy one) is:"post","",false);
xmlhttp.setRequestHeader("If-Modified-Since", "Sat, 1 Jan 2000 00:00:00 GMT");
xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
xmlhttp.send("check_username=" + username + "&password=" + password);

I need to know the Android equivalent to the above please. I've played around with WebView but that loads the page in a web browser which isn't what I want.

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Android :: How To Store Variable Values To Registry

Apr 2, 2009

I am creating an application which requires login and enables user to configure some settings.

However I would like to enable user to store preferred settings, username and password.

Does anyone know how to store and retrieve values from registry? Another possibility is using SQL Lite database but if possible I would prefer to store values to registry.

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Android :: Global Settings Variable For Application

Nov 3, 2010

Is there a way to have an global settings variable for an android application, which is accessable as well from any help java classes without giving them context?

I try to explain what I mean.

I have an application version as string value in strings.xml I can get its value from every android activity, but not from help java classes withought giving context What I do now, is saving it in a static variable of my first activity, but it seems, that sometimes it will be erased and set to null.

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Android :: Passing A Variable Outside From AlertDialog OnClick

Sep 19, 2010

I want to pass a variable to an outer function when user clicks on "OK" in AlertDialog. I'm trying this for example but it won't recognize the Variable.


I know the code is a bit messed up but it's only for the sake of understanding.

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Android : Way To Return Count Of Records In A Variable?

Aug 28, 2010

My ultimate goal is to limit records that are able to be created so that I can have a trial version of my application. I'm thinking I can do this rather simply by returning an int variable within a sqlite count statement, and using a simple IF statement to determine if a new record should be created.

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Android : Why Variable Names Often Start With The Letter M

Nov 21, 2010

Looking at the Android tutorials such as the Notepad tutorial, I noticed that almost all variables are named starting with the letter 'm'. What convention is this, and where does it originate from?

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