Android :: How To Use Arrays In Addding Numbers?
Jun 10, 2010Hey Can anyone tel me how to use arrays in Android.I need to add the numbers given by the user
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Android :: Creating Strings And Arrays
Sep 29, 2010I am trying to create a information based application, I have 92 subjects, for these subjects I have 92 map locations and maybe as much as 400 url links. Currently I have created a class for each map location and a class for each url link, but this would mean I would have in excess of 500 classes, so what I want to do is split the subjects in four catergories ie. listview of about 23 in four tabs which I have done and create a class that gets the url based on the selection the use makes and do the same for the map locations.Do I need to put these in a xml using the id method and how do you call individual entries, i.e. would I need 500 Android:id is there an easier way?
Android :: Getting Array From Arrays.xml File
Mar 16, 2010I am just trying to display a list from an array that I have in my arrays.xml. When I try to run it in the emulator, I get a force close message. If I define the array in the java file (String[] testArray = "one","two","three","etc";) it works, but when I use "String[] testArray = getResources().getStringArray (R.array.testArray); " it doesnt work.Here is my Java file:package com.xtensivearts.episode.seven;
import android.app.ListActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;public class Episode7 extends ListActivity { String[] testArray = getResources().getStringArray(R.array.testArray); /** Called when the activity is first created. */
Android :: Buying Numbers Vs Developing Numbers
Oct 10, 2010It would be interesting to know if the number of people buying apps is growing as fast as the number developing them. Has anyone seen data about either?
View 5 Replies View RelatedAndroid :: Preferred Method Of Copying Arrays
Jul 22, 2009Arrays.copyOfRange() is unavailable in Android, so I'm wondering what the preferred method of copying arrays is. Manually over a loop, or System.arraycopy()? Also, what was the reason behind the decision to not include Arrays.* ?
View 2 Replies View RelatedAndroid :: How To Create An Array Of Objects Which Include Arrays?
Jan 1, 2010I would like to create a list objects called Product (Listproducts).In the application I first have to create the list List products from XML file and then display the products on the map. One product can be located at several locations.Does anyone know what is the most appropriate way to create the structure (a list or linked list) which is the easiest to iterate through and enables to link the lists? The logic should work the following way:
1. Read each point from the list
2. Check which product belongs to the point
3. Display the product informations on the map
Android :: Reading Precomputed Vertex Arrays In Application?
Sep 6, 2010My app has large vertex arrays that are pre-computed before I even build the app for distribution. I'd like to store these in assets (recognizing the size limits of asset files) and read them in with minimal computation. Can I store them in binary, and just read them into an NIO buffer, and then wrap it for GL, or do I have to go through the whole compute intensive (?) process of reading it in, making a byte array, and converting that to an integer (in this case) array?
View 5 Replies View RelatedAndroid :: Can Large String Arrays Freeze My Program?
Oct 10, 2010I recently created a program that gets medi-large amounts of xml data and converts it into arrays of Strings, then displays the data.The program works great, but it freezes when it is making the arrays (for around 16 seconds depending on the size).Is there any way I can optimize my program (Alternatives to string arrays etc.)
View 3 Replies View RelatedAndroid : Way To Create Arrays Of Class Instances In JAVA
May 5, 2010How to create arrays of class instances in JAVA. code...
View 1 Replies View RelatedAndroid :: String Arrays Do Not Allow Illegal Java Names As Values
Dec 13, 2009Does anybody know of a work around for the android xml file string array inability to process string <item>'s that are not legal java variable names If not, is this not a major bug? Why does an item in an array need to generate a reference id anyway? Isn't this redundant?
View 2 Replies View RelatedAndroid :: Populating Child List In Expandable Lists Using Dynamic Multidimensional Arrays
Jul 26, 2010I am using a simple expandable list that is populated by two arrays ( group array for the groups and a multi dimensional children array for the child). The arrays are built dynamically in the program and some group items have more children than others. So I end up defining the highest number as the array size for the multidimensional child array. After populating the child array, some positions are left null, as there are no values for those group items (explained above). When I associate this with the expandable list adapter, the getChildView method throws a nullpointer exception when it comes across a position in child array that does noto have value. I have two questions:
1. Can I make the base adapter skip the shildview method if the value in that child is null? The current implementation of getchildView method has to return a view and even if I suppress the nullpointer exception, it adds a blank element in the child position in the list.
2. Is there a better way of associated multidimensional arrays that are populated at run time? The current set of examples only use hardcoded string array values. Even the cursor adapters examples use very basic setup.
How To Use Arrays Programmatically Or Through Calls To XML Files
Feb 7, 2013In terms of efficiency, is it better to use arrays programmatically or through calls to xml files.
I'd prefer to use xmls for organisational reasons, but is there much of a performance hit.
Android :: Fast Way To Perform Addition Of Large Float Arrays In Android
Apr 4, 2010I simply need to add floatArray1 to floatArray2 storing the result in floatArray2.. no third array. all arrays are one dimensional but are very large. probibly as large as the os will let me get away with. Max i would need is two float arrays with 40,000 floats each. but i could get away with 1/10th that i suppose minimum.Would love to do this in 1/30th or 1/60th of a second but that does not seem possible? Also if the code is JNI,NDK or OpenGL ES thats fine. does android have an assembly language or like machine code i could use somehow?
View 1 Replies View RelatedAndroid :: Caching Large Arrays To SQLite - Java / Android
Jul 28, 2009Im currently developing a system where the user will end up having large arrays( using android). However the JVM memory is at risk of running out, so in order to prevent this I was thinking of creating a temporary database and store the data in there. However, one of the concerns that comes to me is the SDcard limited by read and write. Also another problem that comes to mind is the overhead of such an operation. Can anyone clear up my concerns, as well as also suggest a possibly good alternative to handling large arrays ( in the end these arrays will be uploaded to a website by writing a csv file and uploading it).
View 1 Replies View RelatedAndroid :: Passing Variable String To Create Arrays (Android)
May 24, 2010I am a newb to Android and Java and want to write a funtion that will display a list based on a varable that I pass to the function. The function is below and the code below creates an array out of a string called type, but what I want to do is pass it a variable string and have it build a list based on that string. So if I wanted the type list I would say list_it("type")But if I try something like getResources().getStringArray (R.array.thelist); it doesn't work.Can someone point me in the right direction? public void list_it(String thelist){String[] types = getResources().getStringArray(R.array.type); ArrayAdapter<String> mAdapter = new ArrayAdapter<String>(this, R.layout.list_item1, types);
setListAdapter(mAdapter);
ListView lv = getListView();
lv.setTextFilterEnabled(true);
Android :: Writing Arrays Of Parcelables To Parcel In Android
Dec 11, 2009I'm trying to write an array of objects that implement Parcelable into a Parcel using writeParcelableArray.The objects I'm trying to write are defined (as you'd expect) as:public class Arrival implements Parcelable {All the right stuff in here this class compiles and acts fine And I'm trying to write them into a `Parcel' with: @Override public void writeToParcel(Parcel dest, int flags) I completely don't understand this error message. Parcelable is an interface (not a class) so you can't extend it. Anyone have any ideas? UPDATE: I'm having basically the same problem when putting an ArrayList of Parcelables into an Intent:Intent i = new Intent();i.putParcelableArrayListExtra("locations", (ArrayList< Location> ) locations);Yields: The method putParcelableArrayListExtra(String, ArrayList< ? extends Parcelable >) in the type Intent is not applicable for the arguments (String, ArrayList< Location >)This may be because Location was the class I was working on above (that wraps the Arrivals), but I don't think so.
View 2 Replies View RelatedAndroid :: Arrays To Be Accessed By Both JAVA & JNI In Android App
Oct 23, 2009I am facing a problem in my Android app which is calling native functions through JNI. So thought somebody in this group can help me to resolve this. The current code :
1. Create an array in JNI layer ( by NewIntArray()) which can be used by both Java & C.
2.we can name that array as type jintArray array.
3.We call GetIntArrayElements() on this array to get its elements i.e, int * elementsX.
4. This elements would be used by a native call which will set it to some value.(project specific* : may not need interest for this issue)
5. We now get the updated value of elements. And copy it back to array using ReleaseIntArrayElements()
6.We use array in bitmap/canvas class of Java layer to display on screen. The whole procedure is followed for (480x640) times. And so there is a redundant creation of the array for every frame display. Is there any way to avoid this creation of array for each frame. Any better solution to achieve the above? I am not getting a way out of this & the performance of my app has gotten very low too Any JNI code snippets to modify steps (1 to 3 & 5) would be of great help to me.
Android :: Arrays And ListView In Android
Oct 16, 2010I have a ListView that displays every item in an array called, "Facts_Array". What I would like to do is display the count of the item clicked on.When an item is clicked in the listview, it displays it using Toast. What I would like to change is what the toast displays. I would like it to find the number in which the item comes. If I click on the second item in the list, I want it to display number 2.
View 1 Replies View RelatedAndroid :: Get String Array With Java Code From String Item List In Arrays.xml In Android ?
Oct 28, 2009I want to get an array of strings reading from arrays.xml file we add in android values/ folder. Could any one kindly give a solution for this. Otherwise I will have to input each these entries in strings.xml and take them to java code using getResources()getString()
View 2 Replies View RelatedAndroid :: How To Attach Name To Numbers?
Dec 26, 2009I just got my htc hero yesterday and im loving it. did a search but couldn't find what im looking for....with my hand cent when i get a message the contacts number is only being displayed can u have the name attached to the number displayed in the hand cent? also is there a way of having your texts received as the displayed message? currently the message i have replied with is the messaged displayed in the in box.
View 1 Replies View RelatedAndroid :: Block All Numbers Except Few
Nov 26, 2010We need to block ALL numbers incoming and outgoing (calls and texts) from a cell phone (of a teenager) with the exception of a few numbers. All applications we have researched block only certain numbers where we need to allow only a few telephone numbers to text or call incoming or outgoing from this cell phone.
View 11 Replies View RelatedAndroid :: Can't Text Certain Numbers
Feb 1, 2010I have been able to text these individuals in the past but all of a sudden my messages aren't received. they are sent on my end (or at least I press send).
I'm not sure what the problem is- but one of them is my boss and we have been able to text with no issues then all of a sudden he thinks I'm not answering his texts when in fact I received his text and replied back the information he needed but he didn't get the reply. I've sent several "test" texts and they just aren't going through; I can receive from him but can't send back. But I can text my sister perfectly.
Android :: Resource With Name From Numbers
Oct 13, 2009I had imported several .png files with names like 1.png, 2.png untill 59.png in my Android Project.But it gives this error:
Description Resource Path Location Type Syntax error on token "48", invalid VariableDeclaratorId R.java / TVGidsBelgie/gen/com/woutergo/tvgids line 14 Java Problem
How can i solve this?
Android :: Want Multiple Gv Numbers To 1 Phone
Jun 1, 2010I just posted this in another thread, and then realized that it was actually located in the Sam sung Moment Sub-Forum. So, I am posting it here for more universal viewing and input. Here's a rough explanation of my situation: I'm a leader in a large PS3 gaming community (4-500 active members) - go ahead and call me a dork. With all the things I do there, I occasionally have to give my number to members. I try to stick to msn/skype/google chat. However, that does not always work out. I have many separate G mail accounts for dispersing to different people; specifically, I have one designated as my gaming account. So, I would like to associate my gaming g mail with a specific GV Number. Knowing all that, if I were able to obtain an additional G V invite for that account (I do not currently have one and I probably sound selfish), would it be possible to have 2 different accounts going to the same phone?
View 9 Replies View RelatedAndroid :: Get Phone Numbers Of Contacts
May 24, 2010I am new to Android and have been working on an app that needs to get all of the user's contact's phone numbers. Apparently the code I have does not work with the 2.1 SDK. So far here is the code I am using:
String[] projection = new String[] { Phone.NUMBER };
Cursor c = managedQuery( Phone.CONTENT_URI, projection, null, null, null );
int colIndex = -1;
try {
colIndex = c.getColumnIndexOrThrow( Phone.NUMBER );
} catch( Exception e ) {
print( e.getMessage() ); }
print( "Column Index = " + colIndex );
//count is equal to 3
for( int i = 0; i < count; i++ ){
try {
print( c.getString( 2 ) ); //the 2 used to be colIndex
} catch ( Exception e ) {
print( e.getMessage() );} }
It seems that no matter what I pass into c.getString() it keeps telling me that I passed in -1. But I even hardcoded the 2, and it says the same thing. Any help would be much appreciated.
Android :: Silence All Calls Except Those From Certain Numbers
Sep 11, 2010Is there an app that will put the phone in silent mode for all incoming calls except for certain numbers of your choosing?
View 7 Replies View RelatedAndroid :: Numbers Aligned To Right In EditText
Mar 16, 2010Is it possible to align text in the EditText widget to the right? I do not see any such a property. Am I missing it or maybe there is no such an option.
View 3 Replies View RelatedAndroid :: Trying To Showing Numbers On Textview?
Aug 6, 2010What i m trying to do is, just showing numbers from 1 to 100 in a textview, randomly, and keep on changing until the view is active.
But i am not able to continuously change random number when view is active.
it is just like a timer showing decrement from 10 to 0, but the only difference is i need to show random numbers in between 0 to 100.
How can show this on my view. this is how i am trying to do something..may be a better approch will help me out. Code...
Android :: ProgressDialog - How To Remove Numbers
May 9, 2010I was following the progress dialog example in the ApiDemos. all went great except for one thing - I want to remove the numbers that appear underneath the bar (those running numbers that run from 0 to .getMax().
couldn't find how to do it.
Android :: Possible To Remove Facebook Numbers
Nov 11, 2010Is it possible to remove a contacts phone number that they have listed on fb without unlinking facebook? I still want their updates and pictures but not their outdated numbers!
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