Android :: Possible To Access Raw Data Of Bitmap

Oct 21, 2009

I want to try some fade/blur effect like in winamp visualization plug- ins. getPixel/setPixel way is very slow and do not allow to achieve decent frame rate. Direct access to pixels array could speed up processing.

Android :: possible to access raw data of bitmap


Android : Get RGB Data From Droid Bitmap?

May 15, 2010

Basically I want to capture webpage from webview and get raster data of the bitmap. code...

Issue 1: Out of memmory exception when web page is big for eg. http://times.com What should I do to get this image? Is it possible to get image in multiple bitmaps?

Issue 2: How can i get RGB data 24 bit data from ARGB_8888. I need to get this 24 bit Raster data compress it with some compression and process it...

View 3 Replies View Related

Android :: Get Bitmap Data Before It Is Drawn On Screen

Feb 22, 2010

To any normal android Widgets based on View( Button ,TextView ...), I wanna manipulate the bitmap data before it is drawn on screen. I have tried the onDraw(Canvas canvas) method, But when the programe hit the onDraw(Canvas canvas) method, I think the bitmap has already been drawn to screen.

If there is any way that I can get the bitmap data before it's drawn to screen, so I can prevent it from being displayed , but grab the data, put it on the intent for some further use?

View 2 Replies View Related

Android : Way To Obtain Bitmap From Data In OnPreviewFrame?

May 16, 2009

I need to capture an image from camera and display on surfaceview for my project. I am trying to obtain bitmap from data in onPreviewFrame method of previewCallback and display on surface using canvas.

View 5 Replies View Related

Android : Using Bitmap Data To Copy Pixels To A New One

Jan 29, 2010

In ActionScript development, there are two classes, Bitmap, and BitmapData. Bitmap uses information from BitmapData to create a Bitmap. Is there an equivalent to BitmapData in the android API? I did some digging and BitmapFactory seems to be the closest, however, I'm facing problems with it.

I tried Bitmap bitmap = BitmapFactory.decode Resource(getResources(), R.drawable.buster);

As that was what I was seeing in most of the examples I came across, but it is telling me that the method getResources is undefined. I'm not really sure what is causing this as in another tutorial I did, getResources didn't cause any problems.

I'm not looking to simply draw a bitmap to the screen, I want to copy a section of the bitmap and place it on a new bitmap. In ActionScript, the method is bitmapData.copyPixels(), and I'm looking for a similar method in the Android API. The closest thing I could find was copyPixelsToBuffer(), but I'm not really sure if that does what I think it does.

View 2 Replies View Related

Android :: Converting Binary JPEG Data To Bitmap

Sep 8, 2010

My app will have an SQLite database with some embedded JPEG images -- basically the binary contents of a JPEG file stored as a Blob in the database. Can someone point me in the general direction of where to start to figure out how to convert this "array of bytes" into a Bitmap object that can be further manipulated and displayed in an ImageView?

View 2 Replies View Related

Android :: How To Set Data In Google Maps / Further Access Data

Aug 9, 2010

Dear Android geeks, I am new to android development, and i want to develop an app in which u can set some data and location in google map and at a later time we can retrieve it also. Please help me out with it I am not able to set data in maps.

View 20 Replies View Related

Android : Crop Bitmap Without Reading Entire Bitmap / Cannot Read Image Into Memory

Jul 21, 2010

I have a very large image and I only want to display a section the size of the display (no scaling), and the section should just be the center of the image. Because the image is very large I cannot read the entire image into memory and then crop it. This is what I have so far but it will give OutOfMemory for large images. Also I don't think inSampleSize applies because I want to crop the image, not lower the resolution.

Uri data = getIntent().getData();
Input Stream is = getContentResolver().openInputStream(data);
Bitmap bitmap = BitmapFactory.decodeStream(is, null, null);

Any help would be great?

View 3 Replies View Related

Android :: Create Mutable Bitmap From Camera - Draw Another Bitmap On Top - And Save It

Apr 2, 2009

I am 1) taking a picture and 2) then draw another Bitmap on top of it 3) then I store it

I am doing it as follows and it works on the emulator.

On the device I get a OutOfMemoryError: bitmap size exceeds VM budget android.graphics.Bitmap.nativeCopy(Native Method) android.graphics.Bitmap.copy(Bitmap.java:199) in the line copy the Bitmap to get a mutable Bitmap.

CODE:...........

What I am asking:

a) Is there a better way to do what I am doing? 1) take a picture 2) draw another Bitmap on top of it 3) then I store it

b) What is the best way to create a mutable Bitmap from the picture I just took with the camera?

In my app, resolution is not an issue. If it works better for small photos that would be fine.

View 3 Replies View Related

Android :: Overlay Bitmap - Draw Over A Bitmap

Oct 8, 2009

I have two questions actually:

Is it better to draw an image on a bitmap or create a bitmap as resource and then draw it over a bitmap? Performance wise... which one is better?

If I want to draw something transparent over a bitmap, how would I go about doing it?

If I want to overlay one transparent bitmap over another, how would I do it?

View 1 Replies View Related

Android :: Draw A Bitmap Rotated Onto Another Bitmap

Mar 22, 2009

My goal is the draw a bitmap onto another bitmap but rotated 90 degress. whats the most efficient way to do that. My current method is as follows which is horribly bad because it creates a new bitmap every time.

CODE:.....................

View 4 Replies View Related

Android :: Access Data In An ASP.NET Database Via App

Jul 22, 2010

I have a Windows web server already set up with a website (unlimited application pools) and I want to be able to access a database on that server via the Android app I'm developing. How can I do this? Can someone point me to a tutorial or give code example of how this cross-platform (Android/Java to ASP.NET/C#) communication can be done? (I'm trying to create a leader board or global scoreboard for my Android game on my server.)

View 3 Replies View Related

Android :: How To Access Data From SD Card?

Oct 21, 2010

I juts want to know how can I access a certain data from my SD card. How can I browse SD card contents? For example, from my application, I want to open a pdf file from SD card, how am I going to do this? I tried to write this code but it doesn't seem to work.
Uri uri = Uri.parse("file:///sdcard/"); Intent intent = new Intent(Intent.ACTION_PICK, uri); startActivity(intent);

View 3 Replies View Related

Android :: Way To Get Access To Data On Phone?

Jul 9, 2009

I have a problem using adb shell on my Google IO phone. I get shell access, I can type cd /data/data, but then when I type "ls" it says "opendir failed, Permission denied". Same when I type "sqlite3". I didn't think I'd need to root my phone, but what setting did I miss to get access to data on the phone?

View 3 Replies View Related

Android :: Offline Access To Data

Nov 30, 2009

I am developing an application with TripIt integration and I make a call to their API and I get all my data in JSON format and save it in an object ListTripResponse. This object contains all the data I need over all the application. What I do now, I write this object to a text file (i serialize my object and save it as a file with ObjectOutputStream) and in every activity I read this file. But this file is pretty long and it takes a while to read it. And i have to use and read this object in every activity! Isn't there a better way to do this? I cannot save this file in a database because the structure is to complex.

View 3 Replies View Related

Android :: How Do I Access Web Data Via Phone?

Aug 26, 2010

I am just digging into Android, and want to build a simple application that gets data from wifi/3g from a website, like a classic RSS feed, and/or a post-back to a remote database. A tutorial that does a good job explaining it to a "busy developer". Can anyone reference a good tutorial site, or a book that covers this topic well ?

View 2 Replies View Related

Android :: How To Access Data From Sqlite?

Sep 15, 2010

How to access existing data from sqlite and how to implement the data in list view in android.

View 1 Replies View Related

Android :: Can Not Access Data Folder

Jun 11, 2010

Code...

View 3 Replies View Related

Android :: Need Access To Contact Data

Sep 3, 2010

Alas I have about 500 contacts in my phone book and for some reason after synch'ing them with thunderbird the display name is random last, first...first last. So I thought I would put a quick widget together to just re-do al my display names to last, first. The code I use is below, however I am not getting last / first values. The keys in the cursor exist (data1, data2), but the values were "1" and null respectively. Code...

View 1 Replies View Related

Android :: How To Access Xml Data In TextView?

Oct 15, 2010

I would like to access xml data which contains Questions ans there 4 objective type answers and I want to access them in 5 textViews which access each question and there related answer on every next button click. Its like an online examination.

View 1 Replies View Related

Android :: Draw Shape Or Bitmap Into Another Bitmap - Java - Android

Jun 22, 2010

I want to draw a shape(many circles particularly) into a Specific Bitmap. I have never used canvas / 2D graphs etc. As i see it i create a Drawable put the bitmap in it then "canvas-it" to the shapes i want etc.

View 1 Replies View Related

Android :: Why Do I Get Access Denied To Data Folder When Using Adb?

Jun 25, 2009

I connected to my live device using the adb and the following commands:C:>adb -s HT829GZ52000 shell
$ ls
ls
sqlite_stmt_journals
cache
sdcard
etc
system
sys
sbin
proc
logo.rle
init.trout.rc
init.rc
init.goldfish.rc
init
default.prop
data
root
dev
$ cd data
cd data
$ ls
ls
opendir failed, Permission denied
$ I was surprised to see that I have access denied. How come I can't browse around the directories using the commandline like this? How do I get root access on my phone?

View 3 Replies View Related

Android :: Access Sensors Data Directly

Nov 13, 2010

I am looking for a way to get sensors' data ( especially Accelerometer) directly without using Listener approach. Actually I need to have the data really fast! I can not find any way to read sensor data by myself. Anybody knows anything about it? Is it possible to read data with more than 50Hz?

View 9 Replies View Related

Android :: Data Passing And Database Access

Sep 23, 2009

I am experiencing a problem where when the android device wake up from sleep, the Activity would take forever to get redrawn(and have to terminate it most of the time). I am not sure why, but when I comment out the code below where it retrieves an object from the database based on id stored in the bundle, the problem goes away.

Not sure why the db transaction is causing an issue.

secondly, is it better to store the object in bundle instead of storing its id and retrieving it from db in onCreate?

CODE:...............

View 2 Replies View Related

Android :: Want To Access Temperature Data Remotely

Sep 23, 2010

I have an idea about using an old phone to tell me the temperature at a remote location. I need to know when a greenhouse or any remote location approaches freezing by sending an alarm to my computer or another Android phone. I thought about something similar to remote GPS locating but getting the temperature data instead of the GPS data. I could just leave my old Android phone in the Greenhouse. I know absolutely nothing about App development, I started to look at the SDK but first I needed to know Java, BASIC is as far as I ever got on a BBC.

View 5 Replies View Related

Android :: Getting Access Of Mp3 Data Using Media Player

Apr 27, 2010

currently Media Player getCurrentPosition gives the timestamp of the song being played by the music player . is it possible to extract the data from that poit onwards or do we have any api using which we can extract the chunk of mp3 file which is being played.

View 2 Replies View Related

Android :: Why Does A Wallpaper Need Access To My Contact Data?

Oct 3, 2010

Why does a wallpaper need access to my contact data? "Ocean Wallpapers"

View 3 Replies View Related

Android :: Where To Put Custom Data And Access Them Via R-class Then?

Aug 5, 2010

In a typical Android project you have the res/drawable directories where you can put images but i have some special custom binary files.

where do I usually put them and can i access them via the R-class then?

View 2 Replies View Related

General :: Access Data With No Screen / Android

Nov 22, 2013

I have a Samsung Galaxy S2 which I dropped and can no longer use the screen. The phone boots up but the screen remains black. I cannot access the files via usb, and debugging is not on so I assume I cannot use adb. I have several files I need to extract from my phone, including some financial data from an application, contact list, etc.

View 1 Replies View Related

Android :: High Performance Access On Static Data

Nov 24, 2009

I am writing a program where I have to access some static data, and now I am looking for the best method of how to include them into the project.Reading in the data by parsing an XML is *slow* (even using the SAX parser). 2. Reading the data by parsing a CSV file is faster than loading an XML, but again is too slow. 3. Putting the data into a Java file directly (e.g. by defining an array) fails because Dalvik says it is too large. 4. Reading in the data using serialization is slow. The funny thing here is: It takes a bit longer than loading the XML file. 5. Reading in the data from a SQLite database is the fastest method until now. But a bad workaround is needed: A SQLite DB can not yet be read directly from the resources, but instead has to be copied to the cache or to the SD card - even for read-only access. Right now I am using method 5, but I would really like to use a more simplified and faster solution.

What I found out: Unserialization in Java is *fast* (reading a HashMap with 5000 integers and strings in 79ms on my PC), while the same action on my G1 takes over 13500ms. I know that I can not compare a PC to a mobile device. But still, there seems to be a big difference here. I think that the JRE directly copies the serialized data to RAM, while Dalvik seems to read every object step by step. Is this going to change in the future? And, most interestingly: what do you do to access lots of static information?

View 12 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved