Saving Bitmap Image To Device?

Nov 26, 2013

I have a basic application that uses just squares and circles that appear when the screen is toched. I want to be able to save this created image, the design is build on a bitmap image, and displayed on the canvas so I want to be able to save that as an image to the mobile device.

code for saving this?

Saving Bitmap Image to device?


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 : 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 :: Saving Created Bitmap To Directory On Sd Card

Nov 24, 2010

I created a bitmap and now i want to save that bitmap to a directory somewhere. Can anyone show me how this is done.

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

WANT TO SAVE _bitmapScaled to a folder on my SD card

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Android :: Draw A Spot In The Bitmap Image

Oct 12, 2010

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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

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Feb 9, 2010

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Android :: Convert Bitmap Image To Drawable In Droid?

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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 : 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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General :: How To Reflect Horizontally On Canvas Image Bitmap

Sep 10, 2013

At canvas there are many methods (canvas.rotate (35); canvas.drawBitmap (myBitmap, x, y, null); and many other things), but the method of mirror reflexion of image is absent (or I have not found it). At Bitmap too not that is not. Is it possible to reflect horizontally on canvas the image given Bitmap?

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General :: Saving Battery On Android Device?

Mar 19, 2012

So after some research and Googling, I discovered that "Killing" your app is only worse or has no effect for your battery life. Even using apps that "save" battery only harm it even more. I've been told these were the fundamental things to save battery ever since I even got my hands on a smart phone.. Guess I've been asking the wrong people.

So, what are real ways to save battery? I'm a heavy phone user, often surfing the net or watching Netflix on the go. Dimming my screen is not enough, are there any other techniques to prevent my phone from dying? I've got an Android 4.

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Android :: Downloading Image From Web - Saving To Internal Memory In Location

Nov 15, 2010

What I'm trying to do is this: I want my application to download an image from the Internet and save it to the phone's internal memory in a location that is private to the application. If there is no image available for the list item (i.e. it can't be found on the Internet), I want a default placeholder image to display. This is the image that I have defined in my list_item_row.xml file as the default.

In my ListActivity file, I am calling an instance of a CustomCursorAdapter class I have written. It is in CustomCursorAdapter where I am iterating through all the list items and defining what content needs to be mapped to the views, including the image file by trying to read it from internal memory.

I've seen several questions on this subject, but the examples either are specific to external phone memory (e.g. SDCard), involve saving strings instead of images, or involve using Bitmap.CompressFormat to reduce the resolution of the file (which is unnecessary in my case, as these images will be small thumbnails of already-small resolution). Trying to piece together code from each example has been difficult, hence my asking about my specific example.

At the moment, I believe I've written valid code, but no image is displaying for my list items, including the default placeholder image. I don't know if the problem is being caused by invalid download/save code, or invalid read code - it doesn't help that I don't know how to check internal memory to see if the image exists.Anyways, here's my code...

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Android : How To Guestimate Available Bitmap Memory On A Device

May 13, 2009

Part of my application allows the user to color-correct images. When i open an image for editing, i'd like to know what, more or less, the available bitmap memory is for the device that the app is running on.

For the G1, the limit is use is about 6MByte (about a full-size image that can be taken by the phone (3MPixels) with 16 bit color ==> 6MByte). If i try to open anything larger, i often get an out-of- memory exception. Limiting it to 6MByte reduces these OOM exceptions by a great deal. However, i can see future devices having more memory available because (as one of the reasons) they can take larger pics (e.g. 5MPixel or something).

Right now, my app just uses a hard-coded limit of 6*1024*1024. Is there a way to make this variable, to future-proof this by examine the device my app is running on. If so, how?

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Android : How To Get Bitmap Uri In Droid Mobile Device Using Java?

Feb 18, 2010

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Android :: How Do I Make My Image View Fixed Size Regardless Of Size Of Bitmap

Sep 23, 2010

So 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

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Android :: Gallery With Option Of Saving Image In Android

Aug 7, 2010

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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?

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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 :: 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?

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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:.....................

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Android :: Image Uploading To The Device

Sep 23, 2010

I have an application that requires that some images are uploaded to the device and replaced when the image changes.

For example, the first time the application is opened it goes ot the server and downloads some images, then the second time it verifies if there are new images to be downloaded, if there are it downloads them.

What could be the best approach to store the images on the device? creating a file folder for the application and a content provider?

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Android :: ToggleButton Image Broken On Device

May 17, 2010

I found ToggleButton image has broken on my device. And, I initialized my device but occored same problem.
On emulator, it shows correct image. My device is HTC Desire Android 2.1 Japanese version. I want to know how to repair my device, or is it correct ToggleButton Image on 2.1.

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