I am using bitmap image that i have to rotate on fling. its actually a circular image that will act like a spin wheel. so image resolution is like 1000 x 1000 but when i rotate this image and redraw it android give me an exception " java.lang.OutOfMemoryError: bitmap size exceeds VM budget "
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As we know, we can rotate a bitmap through 2 ways. The 1st way is: Matrix mt = new Matrix(); mt. postRotate (degree);Bitmap bitmap = CreateBitmap(src, 0, 0, w, h, mt, true); canvs.drawBitmap(bitmap, 0, 0, paint); In this way, we always need create new bitmap for every rotation, it is not good way for high performance game or app.The 2nd way is: canvas.save(); canvas.rotate(degree); canvas.drawBitmap(bitmap, 0, 0, paint); canvas.restore();In this way, we avoid creating new bitmap frequently, but the rotation bitmap is distortion, the bitmap quality is worse than first way.So, Is there 3rd way to rotate bitmap with high performance and good quality? Your any comments are really appreciated!
View 3 Replies View RelatedSo I'm loading images from a web service, but the size of the images are sometimes smaller or bigger than other images and the visualization looks silly when I put them in a ListView in android. I'd like to fix the size of my ImageView so that it only shows a portion of the image if it's larger than a preset amount. I've tried everything I can think of setting the setMaxWidth/setMaxHeight, setting the scale type to centerCrop, using ClipableDrawable wrapping my BitmapDrawable, setting using Drawable.setBounds(). I've tried setting in the XML and programmatically, but neither worked. I'm very surprised setting max width/height didn't do anything. Below is the XML I'm using ImageView definition in my layout file
View 1 Replies View RelatedI am trying to rotate a bitmap in OpenGL. I have searched around and come up with this. code...
Drawing the bitmaps indicated with the "ids" works fine but no rotation happens. I am no expert at openGL. Is is possible I need to set some sort of mode prior to the rotation?
I would like to change the height and width of the image. Displays the image using the canvas: How to change the size of the bitmap?
View 1 Replies View RelatedI would like to set the size of a Bitmap, there are no setWidth() or setHeight() so I don't know how to do this...
View 2 Replies View RelatedI'm writing a Music application and I have already gotten the album arts. However, they came up in various sizes. So, how do I standardized the size of the returned bitmap ?
View 1 Replies View RelatedI've problem with memory of the bitmaps, I'm creating a lot of bitmaps and then releasing them by recycle() and after many retries I get:
java.lang.OutOfMemoryError: bitmap size exceeds VM budget
How to get rid of this? The problem is that even if i close the activity (call onDestroy()), in next program run the bitmap memory is still allocated! (I've also android:clearTaskOnLaunch="true" in my manifest). This is horrible. Can anybody help me with that? I suspect that every application using BitmapFactory.decodeResource must get this exception in some call! Do you have any idea what's going on?
I have the following code which I tried to build a Bitmap from an input stream and I want my output bitmap to be 20 x 20:
BitmapFactory.Options opts = new BitmapFactory.Options(); opts.outHeight = 20; opts.outWidth = 20;
InputStream stream = // an input stream to my image Bitmap bm = BitmapFactory.decodeStream(stream, null, opts);
But when I tried it, I do get a bitmap from the inputstream, but it does not scale it to 20x20 which I specified in the BitmapFactory.Options.
It immediately has trouble with memory. In the LogCat this error is displayed, java.lang.OutOfMemoryError: bitmap size exceeds VM budget. I'm using recycle () and System.gc () but I get the same error. My application, is pressing a button switches to the next image and the images are 854x480 Loading images from the SD Card. show the images as follows
Bitmap imageB; ImageView imgV;
imageB = BitmapFactory.decodeFile ("sdcard / img.png"); imgV.setImageBitmap (imageB);
Release is as follow.
@ Override protected void onDestroy () { super.onPause (); imageBG = null; System.gc ();
}
How 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 RelatedI am doing the following in my app, which at times results in the above error.
Action 1: Button on Main activity calls all pictures using ACTION_PICK (results in a thumbnail view of all pictures on my phone). User picked image (URI) is then passed over to next activity where the image is displayed (ImageView) full screen. When I hit back, I go back to the main activity. If I try to open all pictures and pick a picture again, I get a FORCE CLOSE and the logCat data says "OutofMemoryError: bitmap size exceeds VM budget.
Action 2: I get the same error and FORCE CLOSE when I try to rotate the full-sized picture by changing phone orientation back and forth.
What am I supposed to do to save memory? I can't change the use case of my app... the user has to follow the above steps. How can I free up memory without having to change anything in my app.
In my application i have a functionality where a user can take photo and poet it to a web server or select a photo from galerry and upload.
So initially i used to get below exception for the very* first time* i used to select a photo:
Android: OutofMemoryError: bitmap size exceeds VM budget. then i used:
*options.inSampleSize = 2;*
Now the problem is im still getting the same exception *the only difference is im getting exception after 2-3 times.*
i.e im able to upload 2-3 (one by one) photos and then i get the exception. any suggestions?
I'm writing game with a large amount of .png pictures. All worked fine. Than I added new activity with WebView and got memory shortage. After that I made some experiment - replace game .png images with ones that just fully filled with some color. As result memory shortage had gone.
But I suppose that Bitmap internally hold each pixel separately so such changes should have no effect. Maybe this because of initial images have alpha channel and my test images have not it?
But actually question is: Will decreasing .png images files sizes make some effect on decreasing usage of VM application heap or not?
While I'm trying to resize a photo (originally on a sd card), grabbed using :
InputStream openInputStream = contentResolver.openInputStream (photoUri);
I got the following stack trace when calling : Bitmap bitmap = BitmapFactory.decodeStream(openInputStream);
04-26 14:57:57.213: ERROR/dalvikvm-heap(349): 6291456-byte external allocation too large for this process. 04-26 14:57:57.224: ERROR/(349): VM won't let us allocate 6291456 bytes 04-26 14:57:57.234: DEBUG/skia(349): xxxxxxxxxxxxxxxxxxxx allocPixelRef failed 04-26 14:58:58.005: WARN/dalvikvm(349): threadid=15: thread exiting with uncaught exception (group=0x4000fe68) 04-26 14:58:58.014: ERROR/AndroidRuntime(349): Uncaught handler: thread Thread-19 exiting due to uncaught exception 04-26 14:58:58.153: ERROR/AndroidRuntime(349): java.lang.OutOfMemoryError: bitmap size exceeds VM budget 04-26 14:58:58.153: ERROR/AndroidRuntime(349):at android.graphics.BitmapFactory.nativeDecodeStream(Native Method) 04-26 14:58:58.153: ERROR/AndroidRuntime(349):at android.graphics.BitmapFactory.decodeStream(BitmapFactory.java:304) 04-26 14:58:58.153: ERROR/AndroidRuntime(349):at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:149) 04-26 14:58:58.153: ERROR/AndroidRuntime(349):at android.graphics.BitmapFactory.decodeFile(BitmapFactory.java:174)
Do you know an alternative way to resize a picture ? without calling BitmapFactory ? and without getting such an exception ? Thanks in advance for your help Anthony
Posted my problem here too HERE: A beginner..Im doing a school map app.
First of all I have background with 4 buttons ( level3, level4, level5, level6) I try and click all the buttons, normally after clicking 3 of it, the next one will crash.(each level button goes into a level map, whereby clicking the room image buttons, I will enter into the gallery-imageswitcher)
I have at least 5 imageswitchers in each level maps,so that about over 20 imageswitcher galleries overall.
I did all my stuffs using DRAWABLES instead of BITMAPS.. I have tons and tons of images (because its a school map, show all the photos in my school, and all those backgrounds and imagebuttons)
I did some research, and those who have problems are those using bitmap. Some of the ways that can be solved is system.gc();, and bitmap.recycle...(not so sure how to use it though)
In my main background - starttour.java Code...
PS: I have tons of images in the app; I have at least 5 imageswitcher gallerys in each level, so that kinda adds up to over 20 imageswitchers in my app.
I have an ImageView that contains a bitmap. Now the bitmap can change size within a known range. This makes the surrounding views to relocate which I want to prevent. I've tried setting margins and padding for the ImageView but without success.
View 1 Replies View RelatedIn my application am displaying a list of names and respective pictures ? I am picking picture from gallery through Durable.getFromPath(). ? am displaying list , some i encountered with out of memory error ? please help me to sort out this error?
View 1 Replies View RelatedI'm using ListView to display images which I provide through an ImageAdapter class. it works great on my device (and on many other devices which I tested it on), but somehow when I'm using the emulator and I'm long-pressing the up/down button - I'm getting an outOfMemory error after 10-15 seconds.
I tried clearing cache, canceling cache, etc. - nothing helped.
I know this crash is pretty rare (i couldn't reproduced it on any "real" device), but I can see on DDMS that "GC freed" are getting bigger during that long press and I can't find a way to clear them.
I am facing a problem of Out Of Memory Error that is bitmap size exceeds vm budget while changing the orientation of the Droid mobile (but not in any of other mobiles like Android normal and Android small).I am displaying 10 images in grid view, each one size is less than 20kb. If i insert 6 images then it doesn't arise that error.
View 1 Replies View RelatedI just bought the Nexus One unlocked for AT&T and really like it. 1 wierd thing is that when I rotate the phone counter clockwise, the screen goes to landscape just fine; but when I rotate it clockwise it does not go to landscape "the other way". And, if I'm holding the phone 'normally' and rotate it 180 degrees ('upside down') it doesn't follow.My youngest daughter delights in telling me that her iPhone does this with no problem. What's up with that?
View 7 Replies View RelatedI have a HTC Magic (Rogers Canada).And, I see how the Dream (G1) rotates the home screen. can the Magic do that as well? Also, anybody know if it's possible to rotate the screen to the right and not just to the left? Shouldn't the acceleromater detect all the different rotated modes (even upside down?). that'd be cool
View 1 Replies View RelatedIs there a way I can programatically perform a Fling on a listview? I know there is monkey that does all these things but that requires a computer connection with adb etc etc. I want to do it with my app on any phone, without monkey.
View 2 Replies View Relatedhow can I detect Fling action in my own widget? I have implemented my widget as OnGestureListener.
And like in Gallery, I have a "GestureDetector mGestureDetector = new GestureDetector(this);"
For my onTouchEvent(), I have @Override public boolean onTouchEvent(MotionEvent event) {
// Give everything to the gesture detector boolean retValue = mGestureDetector.onTouchEvent(event); return retValue;
But my public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) is never get claeed.
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?
how implement android's Gallery fling action (with the animation) in my own widget?
View 4 Replies View RelatedWhich method in ListView is handling the fling action (up and down)? I look at the source of ListView, I don't see a GestureDectector there.
View 10 Replies View RelatedI'm totally new to this, been tinkering around for a week.
Came up with a simple image viewer app for 2 images.
Feature:
Left and right swipes will switch the images. Dead simple.
What i'd like to do:
Have up to 100 images.
note:
All my images are in my res/drawable folder.
They're named image1.png to image100.png
I obviously don't want to do:
ImageView i = new ImageView(this);
i.setImageResource(R.drawable.image1);
viewFlipper.addView(i);
ImageView i2 = new ImageView(this);
i2.setImageResource(R.drawable.image2);
viewFlipper.addView(i2);
ImageView i3 = new ImageView(this);
i3.setImageResource(R.drawable.image3);
viewFlipper.addView(i3);
all the way to i100. how do I make this into a loop, which is flexible and reads everything from the drawable folder ( and not be limited to 100 images)?
source: Code...
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.
So my application has a large amount of textual data. Up until this point I've been using forward and back buttons to navigate from section to section. I was impressed with the horizontal scrolling of the Ebook reader from Alkido that is available on the store which uses a horizontal fling gesture to flip the pages. Does anyone have any experience doing something like this? I've done it a number of ways, but none seem to be very smooth or efficient.
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