How To Save File 2D Or 3D Array Of Integers
Feb 18, 2013can a whole 2d or 3d array be saved to a file ,,all at once or does it have to be one number at a time? if so what do i have to look up?
View 2 Repliescan a whole 2d or 3d array be saved to a file ,,all at once or does it have to be one number at a time? if so what do i have to look up?
View 2 RepliesHow do I save the contents of an array to a file and then read it again later? I have a small amount of data that will need to be stored and since I have no idea where to start on using a SQLite database, I think this will work a lot better.
View 6 Replies View RelatedI have 2 dimensions array like this: public myArrayType[][] mObjArray; I want to save it in the onSaveInstanceState method, since my array contains lot of elements I don't want to save element by element but the whole array object, what is the best way?
View 4 Replies View RelatedI 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. */
I have a text file that I am pulling from my SD card which contains an array in plain text format. Here are the contents of that file ...
http://www.oddree.com/rayhaque/android1.jpg,http://www.oddree.com/rayhaque/android2.jpg,http://www.oddree.com/rayhaque/android3.jpg,http://www.oddree.com/rayhaque/android4.jpg,http://www.oddree.com/rayhaque/android5.jpg
I am trying to import that text file into a String, convert that String to an array, and then load that array into a list adapter. If I try to split up readString or a trimmed result of readString, I get a forced close every time. If I copy the contents of the file into a String and then use that ... everything works as expected. So what is the difference between loading this stuff from a text file, and loading it from an included string? Is it a byte conversion issue? Code...
Is is possible to specify data in xml resource file and initialize ArrayList from it? I am looking for a way to use the ArrayList with a SimpleAdapter to bind to a ListView. I am wondering if there is a way to specify my data in xml resource file and init ArrayList from it.
View 6 Replies View RelatedIn Android is there an easy way to insert commas into a numberical value?
ie if I have an EditText with 12345 in it, how can I display this as 12,345?
I think I can do it using substring and chopping it up into x number of 3 number chunks then concatenating the answer with ',' between each 3 number chunk.
This would be pretty easy if length of number was constant, but as the number could be from one digit to, say 20, it makes it more complex.
Just curious if there is a simple and clean way to achieve this before I go about making my substring solution.
I would like to create a list of Integers in the /res folder of an android project. However, I want those integers to point resources in /res/raw. So for example, I would like something like this...
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View 2 Replies View RelatedI have Picture data in byte rgb_565 array, and I want convert it in a productive way into argb array. Right now I have found only one (little slow) way to do this: Bitmap mPhotoPicture = BitmapFactory.decodeByteArray(imageData, 0 , imageData.length);
where imageData is my byte[] array in rgb_565, and then: int pixels[] = new int[CameraView.PICTURE_HEIGHT*CameraView.PICTURE_WIDTH]; mPhotoPicture.getPixels(pixels, 0,PICTURE_WIDTH, 0, 0, PICTURE_WIDTH, PICTURE_HEIGHT);
The point is I believe creating a Bitmap object is exacting and not necessary in this case. Is there any other faster way to convert rgb_565 array into argb array? I need this because making image processing on rgb_565 array seems to be a little annoying. Or maybe it is not so hard?
Is it possible to define a ListPreference in Xml and retrieve the value from SharedPreferences using getInt? Here is my Xml code...
And I want to get the value with something like: int val = sharedPrefs.getInt(key, defaultValue).
At the moment I have to use getString and parse the result.
I am trying to make an application that would be able to send the user's voice over the network using RTP. I am using the ported stack from hsc (JLIBRTP) and I am able to record user's voice in a saperate thread. the problem is that jlibrtp uses has a class named RTPSession that is responsible for the session and has the sendData method that takes a byte [] as argument and the AudioFormat class I am using to record user's voice is in AudioFormat.ENCODING_PCM_16BIT wich is short. I have tried using 8bit audioformat but I get an illigalargument exception in my htc magic and in my emulator. So is there any way I can convert the short [] to byte [] ? would that be acceptable in order of voice quality?, is the above error a known bug for htc magic or the platform doesn't support 8bit audio format?
View 3 Replies View RelatedI'm new to android developing but right now I'm working on an application that displays Random Facts. Since I don't want it to be in a random order, I would like to have them in a list. I would like to order through them one by one and show them using TextView.
Resources res = getResources();
myString = res.getStringArray(R.array.FactsArray);
That's what I have so far. If I'm right, that just establishes the array so I can be able to use it later. What I had before was rgenerator which chose a random string from the array and displayed it when I clicked a button.
CODE:................
But Like I said, I would like to just order through them one by one when a button is clicked.
Is there a simple way to convert a JsonArray to a standard Java Array? Obviously, you can iterate and do it explicitly, but I wanted to see if there was a direct way to do so.
View 2 Replies View Related"Unable to save file to SD card due to insufficient file permissions."
This is the message I get when I try to take pictures. I have only taken 9 shots so far. There was no problem until yesterday when i tried to take the tenth. Did I do something to cause this? I am not that tech smart
In my android application i need to insert an array into an array and access its values. Is there any way that i can get this done.
View 3 Replies View Relatedok, flashed with myns rom, titanium backed up everything and only restored user apps. Anyone know which system file to restore that had my scenes saved? I didn't want to restore all of them, don't know if that would matter or not. But i would like the scenes file restored.
View 1 Replies View RelatedI am trying to find the best way to save files to the phone. Basically I have an XML file on a web server that I would like to be able to save on the phone. Should I create a specific folder in my project to save to and if so how do I save the file. Or should I make it to where when you click the Save button it checks for an SD card and if there is and SD card create a folder (if one isn't already there) and save the file in the new folder or save it to the phone? If someone could explain the most efficient way of saving files for my app and how to save the file from the web server I would greatly appreciate the insight. Any tutorial links would be awesome.
View 7 Replies View RelatedI'm using org.w3c.dom.Document to create a document and I need now to write it into a .XML file. I saw tutorials referring the Java.XML.transform.Transformer package but this one is not available in the Android platform.
View 5 Replies View RelatedHow do I save, retrieve, and delete pdf files?
View 2 Replies View RelatedI'm trying to use a standard Intent that will take a picture, then allow approval or retake. Then I want to save the picture into a file.
View 2 Replies View RelatedDoes someone know how to save and restore an object to a file on android ?
View 2 Replies View RelatedI am still not able to save a picture when I send an intent asking for a photo to be taken. Here's what I am doing:
Make a URI representing the pathname
android.content.Context c = getApplicationContext();
String fname = c.getFilesDir().getAbsolutePath()+"/parked.jpg";
java.io.File file = new java.io.File( fname );
Uri fileUri = Uri.fromFile(file);
Create the Intent (don't forget the pkg name!) and start the activity
private static int TAKE_PICTURE = 22;
Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE );
intent.putExtra("com.droidstogo.boom1." + MediaStore.EXTRA_OUTPUT, fileUri);
startActivityForResult( intent, TAKE_PICTURE );
The camera activity starts, and I can take a picture, and approve it.
My onActivityResult() then gets called. But my file doesn't get written.
The URI is: file:///data/data/com.droidstogo.boom1/files/parked.jpg
I can create thumbnail OK (by not putting the extra into the Intent), and can write that file OK, and later read it back).
Sorry if this has been discussed on here before but I did search for about 20 minutes and found nothing relating to what I am experiencing. I get the following error when trying to take pictures on my HTC Hero (Sprint) "Unable to save file to SD card due to insufficient file permissions" I have removed and replaced the card. It will work for about 15 minutes then the same error. I also backed up everything and formatted the card. It worked again for about 15 minutes then the same error.
View 6 Replies View RelatedI recently recieve my first email with an attachment on my Eris. It was a PDF file, I was able to open and view it. I cannot find a way to save it. Do I have to archive the email and go about getting it that way every time?
View 2 Replies View RelatedI have a rooted Incredible and I was about to purchase an app from the market. Is there a way to save the install that I'm downloading?
View 1 Replies View RelatedI created an android application. This application calls C native library which requires save a temporary file to /cache. However the permission for /cache is wrxwrx--- with uid=cache and gid=system. so the application is not allowed to save a file to /cache.
View 4 Replies View RelatedIs it possible for the App to create a new file/asset and write this into the /assets directory. The reason being, that's the only way I can tell webkit will load a local file/resource.
View 10 Replies View RelatedWhen I saved a file or open a dir under sdcard dir, it always complains:"Parent directory of file is not writable: /sdcard/myfile, java.io.IOException: Parent directory of file is not writable" Any idea what's wrong?
View 2 Replies View RelatedI downloaded the Backgrounds App and found really cool background that I really like. I'd like to save the file so I can change it to a different background but go back to my current background later. Does anyone know where the file saves to?
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