Android :: How To Create Bitmap From Image File In Android?

Mar 2, 2010

How to load an image file (on SD card) into a Bitmap on Android?

Android :: How to create Bitmap from image file in Android?


Android : Can I Create Bitmap From An Image (.png)?

Aug 18, 2010

I have an image in .png format in "drawable" folder and need to create Bitmap from it, so can use in public void drawBitmap (Bitmap<http://developer.android.com/reference/android/graphics/Bitmap.html>bitmap, float left, float top, Paint <http://developer.android.com/reference/android/graphics/Paint.html>paint)

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Android : Need To Create A New File ( To Be Sent ) From A Bitmap

Jul 30, 2010

I have a bitmap "picPrev" which I got from my online server. I want to turn it into a file so I can send it. I was exploring this method. code...

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Android : Get Bitmap Infomation Before Decode An Image File?

Jun 4, 2009

I want to know an image's width before decode it, so that I can set Options.inSampleSize if the image is too large. Any advice to do that?

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Android :: Bitmap Image From File Does Not Scale On High Density Device / Display It?

Sep 24, 2010

I 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...

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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.

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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?

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Android :: Resize Large Bitmap File To Scaled Output File

Jul 26, 2010

I have a large bitmap (say 3888x2592) in a file. Now, I want to resize that bitmap to 800x533 and save it to another file.I normally would scale the bitmap by calling Bitmap.createBitmap method but it needs a source bitmap as the first argument, which I can't provide because loading the original image into a Bitmap object would of course exceed the memory (see here, for example).Is there a way to read a large image file with 10MP or more and save it to a new image file, resized to a specific new width and height, without getting an OutOfMemory exception?I also tried BitmapFactory.decodeFile(file, options) and setting the Options.outHeight and Options.outWidth values manually to 800 and 533, but it doesn't work that way.

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Android : Want To Create Bitmap From BitmapDrawable?

May 26, 2009

How can i convert a BitmapDrawable into a Bitmap (hopefully it keeps the Alphachannel from the BitmapDrawable)..

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Android : Create Bitmap From Byte[]?

May 4, 2010

How do I create a Bitmap from a byte[]?

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Android :: Draw A Bitmap Image?

Dec 2, 2009

Any one know about how to draw a bitmap image?...

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Android : Get A Small Bitmap Image From A Big One?

Sep 20, 2010

Can anybody have any idea about how to get a small bitmap image from a big bitmap which is the combination of many bitmaps. Any help will be appreciative.

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Android : Way To Create Byte Array From Bitmap?

Jul 20, 2009

Is it possible to create a byte array from bitmap?How can I do so?

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Android : How Might One Create A Large Bitmap In Droid

Aug 10, 2010

I am trying to build an Android application which can take several photos taken by the camera, and merge them into one giant image. For example, I might take three photos and arrange them in a vertical stack for output as a single image. Ideally, I'd like to be able to keep the images at the original size. Unfortunately, using Bitmap.createBitmap() causes an OutOfMemoryException before even approaching the size of one photo of camera dimensions. Is this possible? Or do I just need to resort to scaling the photos before trying to merge them into a single Bitmap?

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Android :: Draw A Spot In The Bitmap Image

Oct 12, 2010

Hints to draw a spot(small filled circle) on a bitmap image.

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Android :: Set The Background Of Button With Bitmap Image?

Jun 10, 2010

For bitmap image..this code is not working

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

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Android :: How To Load Camera Image As Bitmap

Jun 1, 2010

I am using BitmapFactory.decodeFile to load Bitmaps of images into my application. However, the function returns null on large images (such as those from the camera). The filepath is definitely correct, I just can't figure out why it would return null. I tried supersampling, but it didn't seem to help.

Does anyone have any idea why it would do this or how I could more easily load images taken from the camera into a Bitmap?

Here's the code I am using...

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Android : How To Place A Bitmap Image In ImageView?

Jun 9, 2010

I have a Bitmap image (bm) and a an ImageView (iv) of 50 by 50 when i do iv.setImageBitmap(bm) ... only a portion of the entire image is seen ..How can i see the whole image in the 50 dip by 50 dip ImageView...

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Android : Display Bitmap Image On Another With Text

Feb 9, 2010

I want display image on another bitmap image with text.please send me the code if you are having solution.

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Android :: Cannot Create New Map View To Draw To Off Screen Bitmap

Oct 29, 2010

I'm trying to create a MapView in a service (live wallpaper), but have it hidden so that I can render it to a Bitmap, and then map it to a texture to render in opengl. I have a Canvas and a Bitmap, and I intended to call myMap.draw(myCanvas) in order to get it into the correct bitmap so that I could then bind it as a texture.

When I Initialize I do the following:
myMap = new MapView(ctx, APPSTATICS.MAP_API_KEY);
I get an error:
java.lang.RuntimeException: stub at com.google.android.maps.MapView.<init> (Unknown Source)
Why I can't create a new mapview which I can use to draw to a offscreen bitmap?

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Android :: How To Create Bitmap Thumbnail So Speed Improves?

Nov 12, 2010

I am using MediaStore.Images.Thumbnails.getThumbnail to create bitmap of thumbnail in htc hero , it takes lots of time to execute this. I other device it works faster. Please suggest any alternative to this method to create bitmap thumbnail so speed improves.

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Android :: Alternatives To Create Scaled Bitmap When Adding 3D

Dec 4, 2009

I have a problem - I am writing an application that displays up to 12 images on screen, and moves them around, plus reads touch events. I am using a sample code I found, and it works great. Now I need adding 3D - meaning emulating the objects moving in the Z axis, too (in/out of screen). To do this, I need to resize the images as they move. To test this, I changed the following line in my onDraw (Panel) code: canvas.drawBitmap(bitmap, coords.getX(), coords.getY(), null); to: Bitmap bmpScaled = Bitmap.createScaledBitmap(bitmap, 112, 112, false); canvas.drawBitmap(bmpScaled, coords.getX(), coords.getY(), null); Which works, BUT - movement on screen, plus response to touch events becomes real Jiggly. Checking the log I see that every call to createScaledBitmap causes garbage collection of around 90mS, which causes the total app to respond jiggly. Tried preparing 20 sized bitmaps beforehand, but since that moves the calls to those createScaledBitmap to the beginning of the app - it takes forever to load. Can you think of any workaround or other way to achieve the scaling effect?

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Android : Need To Create Bitmap From Integer Array In C / OpenGL

Nov 29, 2009

I 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.

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Android : Create Bitmap From Droid.graphics.Path?

Oct 5, 2009

I am banging my head against the wall trying to create a Bitmap from a Path object (android.graphics.Path). Is there any way to do this? I've browsed through most of the classes now but can't seem to find any way to do it.

Actually, what I have is a Path that consists of many cubic Bezier curves. It is really expensive to draw with canvas.drawPath(). So I figured that I could perhaps "cache" the Bitmap of this Path by converting the Path to a Bitmap once and then just drawing the Bitmap every time instead of calling canvas.drawPath().

Is there any way to create a Bitmap from this Path?

Or is there a smarter way to draw tha Path multiple times without having to recalculate all of the Beziers? For example, if I created a ShapeDrawable from PathShape from the Path, and just draw the ShapeDrawable objects every time, would that be more efficient than drawing the Path every time?

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Android :: Convert Bitmap Image To Drawable In Droid?

Mar 10, 2010

How can i convert a Bitmap to Drawable.

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Android :: Want To Decode Image Bitmap Retrieved From Picture App

Jan 24, 2009

Will anybody guide me, I want to decode image bitmap picked from Picture application(on a android phone), so How should I achieve this. First thing is how to retrieve image from Picture application, after picking it, if I assign it to temp image variable, is there any method in Bitmap.Factory to decode this image into bitmap.

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Android : Bitmap Magnification Getting Slow / Fit Image In Screen?

Oct 4, 2010

With imageview and network-thread,i am making live cam-view ,bitmap size is "360 240", after parsing network-data to bitmap. Code...

All thing is good ,i can see live-cam but, to fit image in screen like " Bitmap.createScaledBitmap(orgBitmap, width, height / 2 , true)" Seeing bitmap is getting slow , the bigger bitmap is , the more speed down finally, shut-downed.

how to fit image in screen without pain?

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Android :: How To Write Bitmap Out To XML File

Jan 21, 2010

Might sound crazy, but it's what I need to do. I want to take a Bitmap object and use the XMLPullParser/XmlSerializer to write this to a flat file. Obviously I will need to read the XML tag back into a Bitmap object.So somehow I have to turn my Bitmap into a String and then turn that String back into a Bitmap. I will do some searches on Base64 to see if I get any good examples.

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Android :: Image Transparency - Load An Image File Into An ImageView Object

Aug 24, 2010

Is there a way to load an image file into an ImageView object, and then define a transparent color for this object?

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Android :: Read File Into Java Bitmap?

Nov 4, 2010

I know how to read a bitmap file into a byte array. How is the byte array then converted to a Java Bitmap?

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