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.

Android : Using bitmap data to copy pixels to a new one


Android :: How To Copy A Smaller Bitmap Into A Larger One

Mar 1, 2010

I'm trying to copy a series of small bitmaps into a larger one, arranging them side by side without any gaps or overlap in their pixels. For example, if I have 3 square bitmaps, I'd like to copy them into one long and thin rectangle. I know how to do the opposite, namely creating a small bitmap out of a larger one, but not this way around. What's the right command? I want to do this to be able to reuse some code I wrote for handling animation with a single bitmap.)

View 1 Replies View Related

Android :: Relationship Between Pixels And Scaled Pixels?

Jan 4, 2010

I used the layout editor in eclipse to mock up my ui layout and then I created the code to populate it dynamically and things are showing up as different sizes. The XML I use to add the star images looks like this:

<ImageView
android:src="@drawable/star_gold"
android:layout_height="22sp"
android:layout_width="22sp"
android:adjustViewBounds="true"
android:layout_marginLeft="2sp"
android:layout_marginRight="2sp" />...............

View 4 Replies View Related

Android :: Copy File From Sdcard To Package Filesystem - Data - Data - Packagename - Files

Apr 14, 2010

Is it possible to copy a file located on the sdcard to a package's internal filesytem located at /data/data/packagename/files/ folder?

View 3 Replies View Related

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.

View 4 Replies View Related

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 :: 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 :: Copy Protection Data Lost?

Mar 20, 2010

Has anyone turned off copy protection on their app recently? We're finding that Motorola Backflip users can't see our paid apps, so we'd like to turn off copy protection as it doesn't seem to prevent pirating. But, we're worried that existing users will lose their saved preferences. According to bug 2047, the issue was fixed in November 2009, but according to some discussions, it actually still exists. It'd be great to hear positive or negative examples from anyone who's tried this recently. We're also thinking of putting out a dummy app to test things out and will report back if we do.

View 2 Replies View Related

Android :: App Copy Protection And Data Files

Feb 20, 2010

In my app, I access my sqlite database at the following hard-coded location in my code: /data/data/ com.mydomain.appname/databases/database.db

If I turn ON copy protection in the Market Place, will my app still have access to this location?

Or will I have to change it to something like: /data-private/data/ com.mydomain.appname/databases/database.db

(or something like this)

Since I have a Dev phone only, I have no way of testing to see if my app still functions normally after turning on copy protection.

View 2 Replies View Related

Android :: Copy A File From /sdcard To /data ?

May 1, 2009

My question is how to copy a file from sdcard to /data/misc/wifi directory? I am working on a configuration tool for wiki supporting wpa enterprise. The configured file wpa_supplicant.conf must be put in / data/misc/wifi in order to work. So how can I move the file from sdcard to there? Is there any function calls to request a superuser access?

View 7 Replies View Related

Android :: Copy Raw Data From Internal Phone Storage

Aug 31, 2009

I tried to copy my wiped data from my phone, so i have to read raw data with dd command. I have root and BusyBox v1.14.2 installed, but when i type: dd if=/dev/block/mtdblock5 of=/sdcard/testfile or even just dd if=/dev/block/mtdblock5 I get: dd: /dev/block/mtdblock5: Input/output error Why can't I copy the data?

View 3 Replies View Related

Android :: Copy Row Data From One Table To Another In SQLite Droid?

Oct 11, 2010

How do i efficiently copy a row data from one table to another table, where both of them are the same structure. i could go the much harder way of retrieving initial values from the row in the first table and then inserting to the second table. But i feel there is a more efficient way this can be done.

View 1 Replies View Related

Android :: GlBufferData Crash When Try To Copy Data To Vertex Buffer

Mar 16, 2010

I have experienced some trouble using VBOs, since the method glBufferData crashes when I try to copy data to the vertex buffer. Below is the smallest snippet of code that I found to generate the crash:

int numVert = 32; GL11 gl11 = (GL11)gl; testArray = new int[numVert * 3]; testBuffer = IntBuffer.wrap(testArray); gl11.glGenBuffers(1, testID, 0); gl11.glBindBuffer(GL11.GL_ARRAY_BUFFER, testID[0]); final int siz = testBuffer.capacity() * Integer.SIZE; gl11.glBufferData(GL11.GL_ARRAY_BUFFER, siz, testBuffer, GL11.GL_STATIC_DRAW); gl11.glBindBuffer(GL11.GL_ARRAY_BUFFER, 0);

testArray, testBuffer and testID are members of the class containing this code, declared as follows:
int[] testArray; IntBuffer testBuffer; int[] testID = {0};

I tried this code in several OpenGL applications which don't show any problem otherwise. The crash occurs specifically at the glBufferData() method call. If numVert is set to zero, then the crash doesn't occur.

View 4 Replies View Related

Android : Copy Data From Local Xml File To Sqllite Database?

Aug 11, 2010

How can I copy my data from xyz.xml in my assets dir to my sqllite db during development in android platform

View 1 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

General :: Samsung Galaxy S4 - Copy Files From Hidden Data Folder

Apr 12, 2014

There is an app called PPDigital, it stores DRM free PDF files in a folder
Android/data/com.lht.privateerpress/files/

On my Asus Transformer TF101
I don't see that folder using "ES File Explorer" or "file manager" or when plugging into my PC via USB. I tried rooting my tablet and still haven't had any luck.

On my Samsung Galaxy S4
I see the folder but only 2 of the dozen PDFs that are in it, sadly they are the 2 I care the least about, both via "my files" and a USB connection to my PC.

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 :: Screen Size In Pixels

Aug 21, 2010

What is the max x, y size of a Android screen in pixels? Is there a standard set by the OS or does it mostly just depend upon the phone hardware.

View 1 Replies View Related

Android :: High Resolution (pixels) Devices

Sep 7, 2010

I want to publish an application that specifically runs only on 800x480 or higher screens. I don't want users with 480x320, 320x240 etc devices to get it from Android Market. How do I configure it? Market Filters seems to have the answer but I still don't get it.

View 4 Replies View Related

Android :: Scrolling ListView Manually By Pixels

Jul 14, 2010

I want to make use of the trackball or d-pad to scroll my ListView smoothly. Without implementing anything, by default the list scrolls by one item, which is not appropriate for my app, since list items have different heights and I just want to scroll it by a fixed amount.

Is there anything to call to let's say, emulate a 10 pixel drag down?

View 3 Replies View Related

Android : Make Certain Pixels Of An DrawableBitmap Transparent?

Jan 4, 2010

How can I make certain pixels of an DrawableBitmap transparent?

View 3 Replies View Related

Android :: Use Device Independent Pixels Dip And Sip In Droid?

Nov 20, 2010

Cn anyone suggest me how to use device independent pixels(dip),sip and convert px to dip with a sample code..

View 1 Replies View Related

Android :: Get Screen Resolution / Pixels As Integer Values

May 25, 2010

How can I quickly access the screen resolution (width, height) as integer values? I've tried this one, but it always shows zero on my emulator:

DisplayMetrics dm = new DisplayMetrics();
int width = dm.widthPixels / 2;

In my case I want to dynamically create a table with tableRows, each containing two cols. This cols all shall fill half of the screen in width.

View 1 Replies View Related

Android :: Make Whiteboard App (some Pixels Black And Let Others White)?

Aug 31, 2010

I want to make a Whiteboard app, but i don't know how to make only some pixels black and let the others white.

View 2 Replies View Related

Android :: Image Transparency - Section Which You Could Measure In Pixels?

Oct 17, 2009

Anyone know if you can make part (i.e. a section which you could measure in pixels) of an image transparent? What graphics features would I need to look at?

View 4 Replies View Related







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