Android :: JSON Array Iteration In Java
Aug 4, 2010
I am building an android app that needs to download and synchronise with an online database, I am sending my query from the app to a php page which returns the relevant rows from a database in JSON format.
Tell me the best way to iterate through a JSON array?
I receive an array of objects:
[{json object},{json object},{json object}]
What is the simplest piece of code I could use to access the JSONObjects in the array?
Now that I think of it the method I used to iterate the loop was:
CODE:.............
So I guess I had was somehow able to turn the returned Json into and iterable array. Any Ideas how I could achieve this?
I apologise for my vaguness but I had this working from an example I found on the web and have since been unable to find it.
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Aug 3, 2010
Is there a way to convert JSON Array to normal Java Array for android ListView data binding?
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Jul 27, 2010
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.
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Jul 29, 2010
I am trying to parse a json object using gson in Android application ,the test passed quite gracefully in emulator ,while i used the actual device ,the problems started.
I am getting the exception as follows.
CODE:...................
I am using gson 1.4 version.The code i use is:
CODE:..............
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Oct 8, 2009
I'm trying to parse JSON in android but am having trouble with accessing sub children of an object. I am trying to extract augment from the following. Code...
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Apr 7, 2010
I have the following JSON text that i need to parse to get page Name, pagePic, post_id, etc. What is the required code? page Info: { page Name: abc pagePic: http://profile.ak.fbcdn.net/object2/367/... }
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Aug 27, 2010
I am writing a simple Android app and have a database that will send back information into the app. I am new to Android and am looking for a simple example that demonstrates how the Android App can process a JSON response received from a HTTP request. I need to see what classes are used for Android apps to process a HTTP response. A reference to a good tutorial, or if you're keen, write a very basic method to do the job.
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Oct 29, 2010
From my android client i am sending a json to string object.but the .net client is getting it as empty string. here is my code...
is this header format correct?
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Oct 27, 2010
i am trying to send a json string from my android client to my .net Rest service...
HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://myURL");
JSONObject json = new JSONObject();
json.put("name", "i am sample");
StringEntity str = new StringEntity(json.toString());
str.setContentType("application/json; charset=utf-8");
str.setContentEncoding(new BasicHeader(HTTP.CONTENT_TYPE,"application/json; charset=utf-8"));
post.setEntity(str);
HttpResponse response = client.execute(post);
Response is bad request. am i sending the json object as string? is this code correct?
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Nov 15, 2010
I've been looking the source code available from the Restlet official tutorial.
I am trying to hit the Restlet server using the Android app from he tutorial adn I only get the JSON response, not the Java Object. I tried using all libraries and extensions, nothing works. When I hit the tutorial url though (http://restlet-example-serialization.appspot.com/contacts/123) I get the desired response. Any ideas? BTW, I am just using the server (GAE) in the example, not the GWT frontend.
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Aug 25, 2010
In my Android client I want to receive JSON objects from a server. By googling I found a lot of different possibilities how to best parse the InputStream from the Server, but most of them wrote their own parser. Isn't there a library which does this parsing for me? Or how should I best implement it by myself?
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Oct 22, 2009
I am a beginner programmer and I am attempting to use the android NDK.
Is there a way to return an array (in my case an int[]) created in JNI to java? If so, please provide a quick example of the JNI function that would do this.
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Aug 2, 2009
Do you know a library or method to serialize / deserialize Java bean to json in android?
how i can introspect a javabean and fill its fields?
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Oct 16, 2010
I'm developing an Android application.But it doesn't work. I have to delete number five to make it work.
I want to limit to five characters to language variable. How can I do that?
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Nov 24, 2010
I have a problem.
1 - From a webservice. NET 2008 (vb), I have a method that returns an array of bytes, the byte array is actually a string "Hola Mundo" ("Hello World" in English) compressed with the Class of System.IO.Compression GZipStream.
2 - The method returns the string "Hola Mundo" compressed, and this is what the webservice returns:
CODE:..............
3 - if I do a test from a windows application from Visual Basic. NET to run this method returns me this string and Unzip with another function I have, it brings me the "Hola Mundo" ....
4 - On Android (Eclipse) and I managed to make the request and bring me the previous string ... but do not know how to decompress and show me "Hola Mundo" ...
5 - I have tried several codes from the web, but none work.
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Jan 1, 2014
I'm a little new too java programming. Im looking for a means to store groups of static data..so I understand these simple string arrays...
[HIGH]
private static String[] names = new String[] {
"aidanmack",
"johnsmith"
[code]....
But can I not combine that into an array of objects? somthing along the lines of what you would do with json? like...
[HIGH]
private static array[] multi = new array(){
{"name":"AIDANMACK","age":"30"},
{"name":"johnsmith","age":"31"}
}
[/HIGH]
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Sep 24, 2010
What is "deserializing Json" means, I had seen this term on the Web. I don't know the meaning od this particular term So, it would be great if anybody can explain me about What it means actually?
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Aug 31, 2010
Here is the JSON result:
CODE:...................
UPDATE: And here is my code (assume buildQuery and RestClient are valid):
CODE:...................
I get the following Exception on JSONArray quotes = query.getJSONArray("results");:
org.json.JSONException: Value {"quote": ...
The value of "quote" is printed in the debugger.
How can I parse this correctly?
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Oct 30, 2010
Anyone have any idea why when i run this for loop to add a graphic to my screen, the first iteration coordinate get discarded if the loop runs more than once?
For Example, I have a column of 7 graphics in a graphic array list, when I remove a graphic the code below runs to insert a new graphic, and it works perfectly if there is only 1 graphic removed/added. The problem is when I remove 2 or more graphics from the column, the first 1 that is readded get written to x0 and y0 instead of x64 y64 but the second graphic is correctly added to x64 y128. I am using OnDraw canvas to draw.
CODE:...............
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Jan 12, 2010
I 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?
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Oct 28, 2009
I 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()
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Feb 16, 2010
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?
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Oct 12, 2010
I'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.
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Sep 13, 2010
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.
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Sep 21, 2010
based on a search from the internet, the international version (samsung galaxy s) has a built-in fm tuner. does anyone think the vibrant iteration has the chip but has it disabled?
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Mar 31, 2009
I just want to read <string-array> resource elements into a String array. I don't want to make a view or anything and mess with adapters - just want to transfer the elements. Is there a built in class for this? Or do I need to treat the resource file as a regular file?
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May 19, 2010
i have two files
App.java
Gallery.java
App. java contains frontend buttons and functionalities Gallery.java lists the imagesin the sd card. i want to call Gallery.java in click event in app.java
App.java
package gallery.display;
import android.app.Activity;
import android.os.Bundle;
import android.view.View.OnClickListener;
import android.view.View;...........
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Mar 16, 2009
I'm trying to call a java method from javascript using addJavascriptInterface(); but seems does not work, it always display "failure"; java code...
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May 4, 2010
I'm trying to create an rss feed that my droid app reads but i have some holes that i can figure how to fix the json link page is http://www.mandarich.com/mandarichServer/mlb/indexbaseball.php when reading the json i can see where the icon is missing on some and cant figure out why. mainly only for citys like ney york and chicago(cities with two names)
and the code i have for the php is as follows ...
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Aug 8, 2009
Java packages like Java.io, Java.Lang etc used in android, are they different from Java packages in windows ? means specially made for android ?
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