Android :: Native Sdk Function To Scale Bitmap?
Jan 27, 2010Is there some native android SDK function which takes bitmap and desired new bitmap dimensions and then returns scaled bitmap?
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Android :: Best Way To Scale A Bitmap In A View?
Mar 24, 2010I have a custom view which is drawing some bitmaps on screen. I want to scale the bitmaps depending on some sensor data. Can anyone suggest to me the best way (performance wise) to scale the bitmaps.
Right now I'm creating the bitmaps in the constructor of the view but if I start to scale it in the onDraw method I believe I'll just be re-drawing the bitmaps (Which will be a memory / cpu hog).
Android : How To Scale A Bitmap Object In Java
Apr 14, 2009I have constructed a Bitmap object in Java. Can you please tell me how can I scale it (x, y with a different ratio) on android?
View 2 Replies View RelatedAndroid :: Draw And Scale A Bitmap On A Canvas Using Bicubic Interpolation
Mar 25, 2010I want to draw a bitmap on a canvas with bigger size than it is. I can use canvas.drawBitmap(bitmap, null, destRect, null); but that gives a poor quality, as the result is pixelated, if the source image is sightly smaller than the destination rectangle. How can i draw my bitmap using bilinear or bicubic resampling?
View 1 Replies View RelatedAndroid : Preventing Scale On Bitmap Created In Execution Time For ImageView
Sep 23, 2010I have a ImageView acting as a top banner on top of a webview. The image of this banner is created in execution time dependending on the resolution of the device. The height of the banner is always the same for each resolution. The only thing that changes is the width, which changes according to the orientation. But, since the width changes and the height doesn't, I end up having sort of 2 images with different proportion. And this is way the scale down/up won't work out for me.
Another problem is that everytime the user rotates the screen, the banner image is created again but Android seems not to update the image and thus I have a banner missing part of it.
I thought about having a real big image that will fit for both landscape and portrait orientation. But this seems not to be a good idea since Android keeps resizing the image everytime so it will fit on the space of the ImageView.
I'm running out of ideas here. Can someone suggest something?
Android :: Bitmap Image From File Does Not Scale On High Density Device / Display It?
Sep 24, 2010I have problem with displaying bitmap image on imageview on high density screen (480x800). When the bitmap image loaded from file on sdcard, the image does not scale to fit hdpi screen. On medium density screen it works normal (320x480).code...
View 1 Replies View RelatedAndroid :: JNI Callback - Save JVM Pointer In A Native Function
Sep 15, 2009firstly I save JVM pointer in a native function which called when ap lauched:
CODE:.......................
Can Call To Native Function Without Load Library
Mar 22, 2012I have several modules within a single native library, each module is intended to be the compliment to a Java class within the application. How can I call the native functions without having to perform a System. load Library within each Java class? If I load the library in a common class (not through inheritance) the app fails with a link exception.
View 1 Replies View RelatedGeneral :: Always Scale To Max Frequency Or Scale It Based On CPU
Jun 30, 2012the cpu scaling of Android.. First, do the system use the lowest frequency when not in use? Aka screem off..After i unlock the phone do it always scale to max frequency or scale it based on the cpu needed? For example write a text makes the phone use thr same freq as playing a game?
View 1 Replies View RelatedAndroid : Crop Bitmap Without Reading Entire Bitmap / Cannot Read Image Into Memory
Jul 21, 2010I 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?
Android :: Create Mutable Bitmap From Camera - Draw Another Bitmap On Top - And Save It
Apr 2, 2009I 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.
Android :: Overlay Bitmap - Draw Over A Bitmap
Oct 8, 2009I 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?
Android :: Draw A Bitmap Rotated Onto Another Bitmap
Mar 22, 2009My 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:.....................
Android :: Draw Shape Or Bitmap Into Another Bitmap - Java - Android
Jun 22, 2010I 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 RelatedAndroid :: How To Scale A Web View
Nov 2, 2010How can I set the scaling in a web view (or any view at all)? I have a box of 200 and 200, for example. If I apply a web view to it, a web view bigger than the box, it will give me scrollbars. I am seeking for a way to scale the content in order for the webView to fit the box.
Assume that I know the dimesions of the box, and ALSO the dimensions of the WebView.
Android :: Scale Down Video Playback
Nov 9, 2010How to scale down a video playback as there is a memory constraint and the video playback uses software codecs...
View 3 Replies View RelatedAndroid :: Scale & Translate Animation
Nov 11, 2010I require an animation for an image in my application.The image should start coming from the top left corner till the middle of screen. The image size will be smaller at the initial stage. While coming to the middle of the screen, its size should increase(i.e. scaling should take place). Image should not go back to its original position. It should be placed at the middle of the screen itself after the animation.
View 1 Replies View RelatedAndroid :: Make Digital Scale App?
Sep 8, 2009there is anyway you can make a Digital scale app? or if anyone can please , Let me know if it's possible willing to pay someone if so. My family owns a jewelry shop and it would be convenient to use my phone to weigh jewelry or gold out
View 2 Replies View RelatedAndroid :: Change Tab Image Scale?
Nov 3, 2010I have a tab layout with drawable resources as tab images.
In landscape mode everything fine. But in portrait mode images doesn't have some margin from tabs. How I can change images scale or how to set some margin to image? I don't want use fixed size, don't think that it is right way.
Here is my layout code...
Here is tab creation code...
Android :: Want To Scale View Dynamically
Sep 21, 2010I want to display 4 frames in layout which contains customized views.when ever i clicked on one frame it has to occupy total screen. please let me know how to do .
View 2 Replies View RelatedAndroid :: Possible To Change Scale Of Sp Unit?
Oct 6, 2010In my XML I can set textSize="18sp". Is it possible to change the scale of the sp unit which would affect all sp sizes but not affect dp sizes?
View 1 Replies View RelatedAndroid XML Layout Auto Scale?
Jan 6, 2014on different screen size, my layout becomes smaller than expected. So is there any way to make the layout keep the same ratio on all screen? in other word how can I do scaling my layout ?
I think that my layout using drawable-mdpi Instead of drawable xhdpi.
Mylayout:
[HIGH]
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
androidrientation="vertical"
android:layout_gravity="center_vertical"
[code]...
Android :: DIP Scale And Setting Values In Code
Jul 7, 2009I have read about using a 'dip' scale rather than just px, this is straightforward to implement in XML. But how do I adjust values accordingly in the java code? For example:
tv.setTextSize(20)
will result in text of size 20 px right? What's the quickest way of making this 20 dip, other than adding a resource?
Android :: Set Scale Limits On Pinch Zoom?
Sep 28, 2010How to set Max and Min zoom levels for Pinch-Zoom?
View 2 Replies View RelatedAndroid :: Pre Scale Background Example / Speeding Up Web Views
Apr 28, 2010I've created a custom ViewGroup (based off of the Launcher) that allows paging scrolls between some WebViews. Problem is that it doesn't scroll as smoothly as I want it to. I've been following Romain Guy's 2008 advice, but I don't see any massive improvements. Is it because I am using WebViews, or am I just doing the prescaling wrong? This is my code:
Bitmap originalImage = BitmapFactory.decodeResource(getResources(), R.drawable.redbg);
originalImage = Bitmap.createScaledBitmap( originalImage, // bitmap to resize ((WindowManager)
getSystemService(Context.WINDOW_SERVICE)).getDefaultDisplay().getWidth(),
// new width ((WindowManager)getSystemService(Context.WINDOW_SERVICE))
.getDefaultDisplay().getHeight(), // new height true); // bilinear filtering
getWindow().setBackgroundDrawable(new BitmapDrawable(originalImage));
called from onCreate. Is the right?
Android :: Scale A Drawable Or Background Image?
Sep 9, 2009On a layout I want to scale the background image (keeping its aspect ratio) to the space allocated when the page gets created. I am using layout.setBackgroundDrawable() and am using a BitmapDrawable to setGravity for clipping and filling, but don't see any option for scaling.
View 2 Replies View RelatedAndroid :: Scale A Background Image Or Drawable?
Sep 9, 2009On a layout I want to scale the background image (keeping it's aspect ratio) to the space allocated when the page gets created. Anyone have any idea how to do this?
I am using layout.setBackgroundDrawable() and am using a BitmapDrawable to setGravity for clipping and filling, but don't see any option for scaling.
Android :: Scale For Different Screen Resolutions / Dimensions?
Aug 5, 2010I have a class that extends LinearLayout and handles drawing to the screen. (it is in the early stages) How would I go about determining the dimensions of a screen and resizing the images, etc., that this class is drawing to the screen on the fly before actually drawing them to the screen?
What I'm trying to accomplish is support for devices that have varying screen dimensions and resolutions from the same code base, with each device being scaled properly.
Android :: Scale A View Without Resizing Its Children?
Apr 2, 2009I need to resize the height of a layout so i tried to apply a scale animation. The view is resized but its children are resized too. Is there a way to resize the layout without resizing its children?
View 3 Replies View RelatedAndroid :: Scale A Website For Mobile Devices?
Mar 2, 2010I've a very simple static web page (only css and links, no scripts).
It looks good on android and iphone, but too small. I'm guessing they put it smaller since it work for most of the sites.
How can i override this and make him look the size i want it to be?