Save bitmap to location

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I am working on a function to download an image from a web server, display it on the screen, and if the user wishes to keep the image, save it on the SD card in a certain folder. Is there an easy way to take a bitmap and just save it to the SD card in a folder of my choice?

My issue is that I can download the image, display it on screen as a Bitmap. The only way I have been able to find to save an image to a particular folder is to use FileOutputStream, but that requires a byte array. I am not sure how to convert (if this is even the right way) from Bitmap to byte array, so I can use a FileOutputStream to write the data.

The other option I have is to use MediaStore :

MediaStore.Images.Media.insertImage(getContentResolver(), bm,
    barcodeNumber + ".jpg Card Image", barcodeNumber + ".jpg Card Image");

Which works fine to save to SD card, but does not allow you to customize the folder.

try (FileOutputStream out = new FileOutputStream(filename)) {
    bmp.compress(Bitmap.CompressFormat.PNG, 100, out); // bmp is your Bitmap instance
    // PNG is a lossless format, the compression factor (100) is ignored
} catch (IOException e) {
    e.printStackTrace();
}

Save bitmap to file function, isDirectory()) { path.mkdirs(); } // output image to file FileOutputStream fos = new FileOutputStream(filePath); savePic.compress(Bitmap.CompressFormat.PNG  You should use the Bitmap.compress() method to save a Bitmap as a file. It will compress (if the format used allows it) your picture and push it into an OutputStream. Here is an example of a Bitmap instance obtained through getImageBitmap(myurl) that can be compressed as a JPEG with a compression rate of 85% :

You should use the Bitmap.compress() method to save a Bitmap as a file. It will compress (if the format used allows it) your picture and push it into an OutputStream.

Here is an example of a Bitmap instance obtained through getImageBitmap(myurl) that can be compressed as a JPEG with a compression rate of 85% :

// Assume block needs to be inside a Try/Catch block.
String path = Environment.getExternalStorageDirectory().toString();
OutputStream fOut = null;
Integer counter = 0;
File file = new File(path, "FitnessGirl"+counter+".jpg"); // the File to save , append increasing numeric counter to prevent files from getting overwritten.
fOut = new FileOutputStream(file);

Bitmap pictureBitmap = getImageBitmap(myurl); // obtaining the Bitmap
pictureBitmap.compress(Bitmap.CompressFormat.JPEG, 85, fOut); // saving the Bitmap to a file compressed as a JPEG with 85% compression rate
fOut.flush(); // Not really required
fOut.close(); // do not forget to close the stream

MediaStore.Images.Media.insertImage(getContentResolver(),file.getAbsolutePath(),file.getName(),file.getName());

Android saving Bitmap to external storage. · GitHub, Answer: Use this function to save your bitmap in SD card: public void saveTempBitmap(Bitmap bitmap) { if (isExternalStorageWritable()) { saveImage(​bitmap); }  Save bitmap to location. I am working on a function to download an image from a web server, display it on the screen, and if the user wishes to keep the image, save it on the SD card in a certain folder.

outStream = new FileOutputStream(file);

will throw exception without permission in AndroidManifest.xml (at least in os2.2):

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>

Save bitmap to location, Save bitmap to location. I am working on a function to download an image from a web server, display it on the screen, and if the user wishes to keep the image,  I'm trying to save a bitmap to file and a specific directly using a function I've created. It's not working. It crashes after bitmap.compress part (before here3). File dir = new File(filepath)

Inside onActivityResult:

String filename = "pippo.png";
File sd = Environment.getExternalStorageDirectory();
File dest = new File(sd, filename);

Bitmap bitmap = (Bitmap)data.getExtras().get("data");
try {
     FileOutputStream out = new FileOutputStream(dest);
     bitmap.compress(Bitmap.CompressFormat.PNG, 90, out);
     out.flush();
     out.close();
} catch (Exception e) {
     e.printStackTrace();
}

Saving & loading bitmaps to the Android device storage (internal , In this tutorial I will show how to save a bitmap file to the external and internal storage of an Android device. It's actually quite easy and only requires a The idea here is that you already have a Bitmap object from anywhere (web, gallery, camera, etc.) and then you can use the code in above posts to save that image to a particular location on your device. If you want, you can later access it from the location where you saved it.

Some formats, like PNG which is lossless, will ignore the quality setting.

Android saving files in internal storage, The problem appears when we want to save file to the path that doesn't And with decoding image from byte array to bitmap and than saving it, we could do it  A bitmap consists of the pixel data for a graphics image and its attributes. There are many standard formats for saving a bitmap to a file. GDI+ supports the following file formats: BMP, GIF, EXIF, JPG, PNG and TIFF.

Resize and Change Logo from JPG to BMP for Use with Bill and Letter, A color JPG image can be converted to a color bitmap by saving it in the steps below Click File > Save As. Select the location \DRAKEYY\CF\ to save the logo. To run the app from android studio, open one of your project's activity files and click Run icon from the toolbar. Select your mobile device as an option and then check your mobile device which will display your default screen - In the above result, click on save button to store image in internal storage as shown below –.

android.graphics.Bitmap.compress java code examples, Save bitmap to location. // Assume block needs to be inside a Try/Catch block. String path = Environment.getExternalStorageDirectory().toString(); OutputStream​  The following example creates a Bitmap object from a BMP file. The code saves the bitmap to three JPEG files, each with a different quality level.

Save files in graphics formats in Photoshop, Specify a filename and location, and click Save. In the BMP Options dialog box, select a file format, specify the bit  Instead of Edit bitmap and Save As from Corel PHOTO-PAINT. So this option will retain the bitmap properties, while selecting the bitmap and Export selected re-builds the bitmap in the new properties set in the Export and Convert to Bitmap dialogs.

Comments
  • Exactly what I'm doing in my app. I download a large image form webserver manipulate it and load the bitmap directly to an imageview via mImage.setImageBitmap(_result.getBitmap()); in my onTaskComplete() callback. I now have to allow users to save the file locally if they want via long press context menu. I should be able to use the solution below. What i want to know though, did you discover a better approach to this?
  • There is a way elegant way of doing it here: stackoverflow.com/questions/4263375/…
  • I have also compressed the image but to 100 percent and when I am getting my image in canvas it is very small. any reason?
  • @Aizaz This will not change the size of the image, only the format and (potentially) quality. It is also worth noting that the compression quality, 90, in the example above will not have any effect when saving as a PNG, but will make a difference for JPEG's. In the case of a JPEG, you can choose any number between 0 and 100.
  • It should be noted that saving this way for .JPEG with 100% quality will actually save a different image than the original at web (will atleast take much more space), Consider alternative approach.
  • Does one have to recompress? I just want to save the original image.
  • @HeinduPlessis Don't have to but you probably should. Saving the raw bitmap will take much more space, depending on the format (ARGB_4444 vs ARGB_8888 for example).
  • @JoaquinG any reason for that fOut.flush() isn't it possible to omit it?
  • @Niklas I think that you can omit flush.
  • You should change the wording from "compression rate of 85%" to "quality rate of 85%" for less ambiguity. I would interpret "compression rate of 85%" to mean "15% quality," but the int parameter of Bitmap.compress specifies quality.
  • can you plz post the method getImageBitmap(myurl)
  • Not if your file absolutePath is an internal path?
  • you're calling it "pippo.jpg" but you're using PNG compression