Android : How Convert Bitmap To Byte Array?
May 29, 2009I want to store pictures from the internet in my data base as byte arrays. I get the pictures as bitmaps, but can't find way to convert it to byte array.
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Android : How To Convert Byte Array In Bitmap?
Mar 19, 2009I want to store image in sqlite database. I tried to store it using BLOB and String, in both cases it store the image and can retrieve it but when i convert it to Bitmap using BitmapFactory.decodeByteArray(...) it return null. Below is my code please have a look and suggest me where i m making mistake.
View 3 Replies View RelatedAndroid : How To Convert Bitmap To Byte Array?
Aug 12, 2010Does anyone know how to convert a bitmap to a byte array?
View 2 Replies View RelatedAndroid : Way To Create Byte Array From Bitmap?
Jul 20, 2009Is it possible to create a byte array from bitmap?How can I do so?
View 3 Replies View RelatedAndroid : How To Convert Byte Array To String / Vice Versa?
Oct 8, 2009I have to convert a byte array to string in Android, but my byte array contains negative values. If I convert that string again to byte array, values I am getting are different from original byte array values. What can I do to get proper conversion?
View 7 Replies View RelatedAndroid :: Converting Byte Rgb_565 Array Into Argb Or Rgb Array
Jan 12, 2010I 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?
Android :: Converting Short Array To Byte Array
Feb 16, 2010I 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 RelatedAndroid :: Convert Json Array To Normal Java Array
Aug 3, 2010Is there a way to convert JSON Array to normal Java Array for android ListView data binding?
View 2 Replies View RelatedAndroid :: Convert JSON Array To Array
Jul 27, 2010Is 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 RelatedAndroid :: Get A Byte Array From Drawable Resource?
May 13, 2010I would like to get a byte array from an jpeg image located in my res/drawable file?
View 3 Replies View RelatedAndroid : How To Display RGB 565 Byte Array On Screen?
Apr 27, 2009Can please anyone let me know how to display a raw RGB 565 byte array on the screen.
View 2 Replies View RelatedAndroid :: Converting Base64 Byte Array To String
Feb 16, 2009Im trying to convert a byte array which is in Base64 format to String as below. Data was not assigned properly to the String. Do I need to pass the encoding type while creating the new String?
View 3 Replies View RelatedAndroid :: Cannot Cast From Bitmap To Byte / Way To Fix?
Apr 5, 2010I'm trying to draw an image downloaded from the web but keep getting the error "Cannot cast from Bitmap to byte[]". Here's the code...
View 7 Replies View RelatedAndroid : Create Bitmap From Byte[]?
May 4, 2010How do I create a Bitmap from a byte[]?
View 2 Replies View RelatedAndroid :: StreamCorruptedException While Sending Image As Byte Array Over Bluetooth
Aug 1, 2010I try to send an image over bluetooth to another device. This works mostly fine, but sometimes, I get a StreamCorruptedException: Wrong format: 0x27 on the receiving device. Anybody knows what this means? And how can I avoid that?
View 1 Replies View RelatedAndroid : Way To Turn Byte Array From Camera's OnPreviewFrame Into A Picture?
Jul 23, 2010I ask if there is a simple way because there is a google issue report saying that using decodeByteArray isn't possible. But that report originated in 2008 and I was hoping there was a solution not posted on there. The method listed on the issue report was to decode the format yourself, but I'd prefer to not have to put that in and slow down the program.
View 1 Replies View RelatedGet Contents Of Textbox As Byte Array?
Feb 2, 2012I'm using the following code to encrypt a String (inText) whose output is a byte array named cipherText;
Code:
byte[] cipherText;
cipherText=cipher.doFinal(inText.getBytes());
The cipherText is printed in a textbox as follows:
Code:
encText.setText(new String(cipherText));
Everything works fine until here. However, in the decryption section, I need to get the contents of the textbox as a byte array again. For this purpose, I use the following code:
Code:
byte[] cText;
cText=encText.getText().toString().getBytes();
When I try to do the encryption it gives a 'bad size' error. I found out that the lenghts of the two byte arrays cipherText and cText aren't equal:
Code:
decText.setText(Integer.toString(cText.length));
encText.setText(Integer.toString(cipherText.length));
boolean res=Arrays.equals(cText, cipherText);
result.setText(Boolean.toString(res));
The 'result' textbox always prints 'false' meaning that the two byte arrays cipherText and cText aren't equal. However I convert cipherText to a String to print in a textbox and then read the contents of that textbox, convert to String back and then to Byte Aray again. Obviously some data is lost during these conversions.
Android :: Best Approach To Transfer Large Video Files Into Byte Array?
Apr 8, 2010Please could anyone suggest an approach for transferring a >2MB video from a ContentResolver into a Bytestream, without running out of memory?
See question: http://stackoverflow.com/questions/2599305/android-outofmemoryerror-w...
Here's the current code, which throws an OutOfMemoryError on the byteBuffer.write(buffer, 0, len) line when transferring large videos:
// get bytestream to upload videoByteArray = getBytesFromFile(cR, fileUriString);
public static byte[] getBytesFromFile(ContentResolver cR, String fileUriString) throws IOException { Uri tempuri = Uri.parse(fileUriString);
InputStream is = cR.openInputStream(tempuri);
byte[] b3 = readBytes(is); is.close(); return b3;
}
Android : How To Convert SDP Data From Byte Into Object?
Mar 18, 2010I am currently sending and receiving SIP messages across a network. When I want to add SDP data to a SIP message I use the SessionDescription object in jrtp. This object is then added to the SIP message. But when I get a SIP message from the server its SDP is in a byte[] array. So I'm wondering is there anyway to convert the byte[] back into a SessionDescription object so I can use the SessionDescription object's methods to parse the data?
View 1 Replies View RelatedAndroid : Way To Determine / Calculate Byte Size Of A Bitmap?
Mar 9, 2010How can I determine/calculate the byte size of a bitmap (after decoding with BitmapFactory)? I need to know how much memory space it occupies, because I'm doing memory caching/management in my app. (file size is not enough, since these are jpg/png files).
View 1 Replies View RelatedAndroid :: Store And Retrieve Byte Array (image Data) To And From SQLite Database?
Nov 16, 2010How do I store and retrieve a byte array (image data) to and from a SQLite database in Android?
View 1 Replies View RelatedAndroid :: Convert List In To Byte For Storing In SQLite
Sep 16, 2010I want to store this array in to SQLite database.Can some one give me code for converting this array in to byte[] or give me code for another solution ?
View 1 Replies View RelatedAndroid : Way To Convert String To Array (droid)?
Sep 1, 2009I get a String data from Cursor, but I don't know how to convert it to Array. How can I do that?
View 1 Replies View RelatedAndroid : Need To Create Bitmap From Integer Array In C / OpenGL
Nov 29, 2009I am trying to move my code from Java to C, and I have encountered a problem while trying to find a function in C that can take an array of ints and create a bitmap from it for OpenGL. In Java, I used
bitmap = Bitmap.createBitmap( {int array name} , w, h, Config.RGB_565);
Is there a similar function that I can use in C, or a workaround that I could use?
Also, if it matters, I am programming for Android.
Android : How To Convert Drawable Into Bitmap
Feb 28, 2010How do I convert a Drawable into a Bitmap?
View 2 Replies View RelatedAndroid :: How To Convert Picture Object To Bitmap?
Jun 4, 2009I am trying to figure out how to do conversion of Picture object generated by web View to Bitmap for later JPEG encoding and saving to local f/s. I tried to create a bitmap from pre created Picture object by BitmapFactory.decode Stream and failed. Seems like Picture object is unrecognized format by Bitmap factory. Just wondering is there any method to do the conversion?
View 6 Replies View RelatedAndroid :: Convert A Bitmap To GrayScale In Droid?
Jul 30, 2010I am new to this site, and I come with a question about Android.
Is there any way to convert a Bitmap to grayscale? I know how to draw a grayscale bitmap (using canvas operations: http://www.mail-archive.com/android-developers@googlegroups.com/msg38890.html) but I really need The actual bitmap in gray colors (or at least something that could be converted to a bitmap later on).
Do I have to implement it by hand (pixel by pixel operations)?
I've searched a lot, and still could not find. Anyone knows a easy/efficient way to do it?
Android :: Convert View To Bitmap FileNotFoundException?
Sep 2, 2010I'm trying to convert my LinearLayout to a bitmap so that I can save the current layout content as an image in SD card. First, I create bitmap and canvas and attach the layout to the canvas.
Followed steps from http://www.brighthub.com/mobile/google-android/articles/30676.aspx#comments.
Code to add child view into layout before creating bitmap:
CODE:............
When I press the save button, it should save the current layout as an image to SD card.
Here are my steps:
CODE:...............
It can create folder in SD card but no file created under this folder. It always gives me FileNotFoundException. I'm not sure it is the file creating problem or the screenBitmap problem.
Android : Convert A Bitmap To Drawable In Droid
Mar 10, 2010How can i convert a Bitmap image to Drawable.
View 1 Replies View RelatedAndroid :: Code To Convert Base64 String To Bitmap
Sep 27, 2010I have a problem in converting base64 string to bitmap in android. I am using the camera to fetch the image and i am convert the image to base64 string to post to the server. I want to show that image in the imageview so how can i show the image in the ImageView after fetching the image from the camera.
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