I should save an image (byte []) inside the internal memory and make it visible inside the gallery, but the following code does not work, what's wrong? the file is not saved and shown in the gallery but no error is generated
private void saveImageToDisk(final byte[] bytes) {
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMdd-hh:mm");
String todayDate = dateFormat.format(new Date());
Log.d("Foto data: ",todayDate);
File file = new File(context.getFilesDir(), "image.jpg");
try (final OutputStream output = new FileOutputStream(file)) {
output.write(bytes);
output.close();
} catch (final IOException e) {
Log.e("TAG", "Exception occurred while saving picture to storage ", e);
}
Log.d("Foto","File salvato"+ file.getAbsolutePath());
addPicToGallery(file.getPath());
}
private void addPicToGallery(String photoPath) {
Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
File file = new File(photoPath);
Uri contentUri = Uri.fromFile(file);
mediaScanIntent.setData(contentUri);
this.sendBroadcast(mediaScanIntent);
}
To save an image to internal storage you can use the function below:
String saveImage(Context context, Bitmap image) {
String savedImagePath = null;
// Create the new file in the external storage
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss",
Locale.getDefault()).format(new Date());
String imageFileName = "JPEG_" + timeStamp + ".jpg";
File storageDir = new File(
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES)
+ "/YourAppName");
boolean success = true;
if (!storageDir.exists()) {
success = storageDir.mkdirs();
}
// Save the new Bitmap
if (success) {
File imageFile = new File(storageDir, imageFileName);
savedImagePath = imageFile.getAbsolutePath();
try {
OutputStream fOut = new FileOutputStream(imageFile);
image.compress(Bitmap.CompressFormat.JPEG, 100, fOut);
fOut.close();
} catch (Exception e) {
e.printStackTrace();
}
// Add the image to the system gallery
galleryAddPic(context, savedImagePath);
// Show a Toast with the save location
String savedMessage = context.getString(R.string.saved_message, savedImagePath);
Toast.makeText(context, savedMessage, Toast.LENGTH_SHORT).show();
}
return savedImagePath;
}
This function takes context and Bitmap image as the parameters and returns the path of the file stored.
And to make the image visible to default gallery:
static void galleryAddPic(Context context, String imagePath) {
Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
File f = new File(imagePath);
Uri contentUri = Uri.fromFile(f);
mediaScanIntent.setData(contentUri);
context.sendBroadcast(mediaScanIntent);
}
You need to pass the context and path of the image stored to this function. This second function is called inside the first function.
And I am not sure if you would need to actually make a FileProvider for these purposes, but if you do.
In you AndroidManifest.xml inside of the <application> tag , use following:
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="<YOUR.PACKAGE.NAME>.fileprovider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="#xml/file_paths" />
</provider>
And create a new Resource directory. Right click 'res'>>New Android Resource Directory. Choose 'xml' from the dropdown. Then right click the xml folder and create a file called file_paths wherein put:
<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">
<external-cache-path name="my_cache" path="." />
<external-path name="my_images" path="Pictures/" />
</paths>
Save file to internal storage and show in gallery
That is not possible, sorry.
but the following code does not work, what's wrong?
Third-party apps, including the MediaStore and galleries, have no rights to access your files on internal storage.
I know this is duplicate question but there is not available any solution for this. I have used latest API Level 24 and Test on API 23. I have to save image on SD Card with my App Name folder but folder is not created...
I have write following method but it not working
public void actionScreenShot(View view) {
//enable drawing cache true
imageContainer.setDrawingCacheEnabled(true);
imageContainer.buildDrawingCache(true);
//create image from layout
Bitmap bitmap = Bitmap.createBitmap(imageContainer.getDrawingCache());
//String folder_path = getApplicationContext().getFilesDir().getPath() + "/MyAppTest/"; //It's work properly
//String folder_path = getApplicationContext().getExternalFilesDir(Environment.DIRECTORY_DCIM) + "/MyAppTest/"; //It's work properly
String folder_path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM).getAbsolutePath() + "/MyAppTest"; //It's not work properly
if (checkFile(folder_path)) {
saveFile(new File(folder_path), bitmap);
} else {
File folder = new File(folder_path);
if (folder.mkdirs()) {
saveFile(folder, bitmap);
} else {
Log.d("Directory", " >> not created");
}
}
}
public void saveFile(File folder, Bitmap bitmap) {
boolean success = false;
try {
File file = new File(folder, "temp.png");
if (file.exists()) file.delete();
FileOutputStream out = new FileOutputStream(file);
bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
out.flush();
out.close();
success = checkDatabase(file.getPath());
}catch (Exception e) {
e.printStackTrace();
}
if (success) {
Log.d("FILE", "success");
} else {
Log.d("FILE", "not success");
}
}
public boolean checkFile(String myPath) {
boolean isExist = false;
try {
File file = new File(myPath);
isExist = file.exists();
} catch (Exception e) {
}
return isExist;
}
Permission is given also in AndroidManifest.xml
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
Log Trace as following...
10-05 17:08:09.424 2808-2808/packagename D/Directory >> not created
If any solution available then help me...
Thanks....
here is the simple code to create folder in sdcard
// create a File object for the parent directory
File newFolder = new File("/sdcard/newFolder/");
// have the object build the directory structure, if needed.
newFolder.mkdirs();
// create a File object for the output file
File outputFile = new File(newFolder, filename);
// now attach the OutputStream to the file object, instead of a String
FileOutputStream fos = new FileOutputStream(outputFile);
permission in manifest file
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
The problem is that you are using API 23 and 24 (Marshmallow).
Google changed the permission strategy from API 23.
Reduce your target version to 22. It will work. If you want 23 or 24 then include code to request permission at run time.
I am working on Android for saving multiple image in sd card but its getting save in gallery also and specific folder also...
any one can help on this
thanks..
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent, CAMERA_PIC_REQUEST);
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == CAMERA_PIC_REQUEST) {
// 2
Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
mImage.setImageBitmap(thumbnail);
CharSequence time2 = android.text.format.DateFormat.format(
"yymmddhhmmss", new java.util.Date());
String date1 = time2.toString();
//ByteArrayOutputStream bytes = new ByteArrayOutputStream();
try {
thumbnail .compress(CompressFormat.JPEG, 100, new FileOutputStream(Environment.getExternalStorageDirectory()
.getAbsolutePath() + "/mypics/img" + date1 + ".png"));
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} else
Toast.makeText(getBaseContext(), "Please take snap again",
Toast.LENGTH_LONG).show();
}
try like this::
Use this function to save your bitmap in SD card
private void SaveIamge(Bitmap finalBitmap) {
String root = Environment.getExternalStorageDirectory().toString();
File myDir = new File(root + "/saved_images");
myDir.mkdirs();
Random generator = new Random();
int n = 10000;
n = generator.nextInt(n);
String fname = "Image-"+ n +".jpg";
File file = new File (myDir, fname);
if (file.exists ()) file.delete ();
try {
FileOutputStream out = new FileOutputStream(file);
finalBitmap.compress(Bitmap.CompressFormat.JPEG, 90, out);
out.flush();
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
and add this permision in manifest:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
to save in gallery just add this one:
sendBroadcast(new Intent(
Intent.ACTION_MEDIA_MOUNTED,
Uri.parse("file://" + Environment.getExternalStorageDirectory())));
If you do not want images inside the /mypics/img/ folder to be shown in the gallery. All you need to do is:
Include an empty file named .nomedia in your /mypcis/img/
directory (note the dot prefix in the filename). This will prevent
Android's media scanner from reading your media files and including
them in apps like Gallery or Music.
Note: For some devices, this only works for new folders (not those which are already scanned) So my recommendation would be to create a new folder with the .nomedia file and store your images to that. Now they will not appear in the gallery. Only in the external SD card folder.
First of all, my permissions:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
My methods to save and get the image:
private void saveIamgeToLocalStore(Bitmap finalBitmap) {
String root = Environment.getExternalStorageDirectory().toString();
File myDir = new File(root + "/temp");
myDir.mkdirs();
String fname = "Profile_Image.png";
File file = new File (myDir, fname);
if (file.exists()) file.delete();
try {
FileOutputStream out = new FileOutputStream(file);
finalBitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
out.flush();
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
private void loadImageFromLocalStore(String imageURI) {
try {
Uri uri = Uri.parse(Environment.getExternalStorageDirectory().toString() + imageURI);
Bitmap bitmap = BitmapFactory.decodeStream(getActivity().getContentResolver().openInputStream(uri));
profileImage.setImageBitmap(bitmap);
profileImage.setTag("Other");
select_image_button.setText(R.string.button_remove_profile_picture);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
}
Usage:
saveIamgeToLocalStore(BitmapFactory.decodeFile(picturePath));
loadImageFromLocalStore("/temp/Profile_Image.png");
I'm getting a
java.io.FileNotFoundException: No content provider: ...
warning.
What am I missing?
PS: The image gets saved in /mnt/sdcard/temp/ . The warning appears when loading the image.
Is your file getting saved? In case yes, may be the mediascanner is not triggered before you do a read of the file. Since the mediascanner is not triggered, so content provider wont have the entry
for your file (your file is not indexed).In case your file is getting saved with "saveIamgeToLocalStore", then trigger mediascanner from code once like this:
sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri
.parse("file://"
+ Environment.getExternalStorageDirectory())));
and then do a read on the file. It should work.
You need to write file existing check. Then it'll be easier to find problem.
Short example
File test = new File (URI)
if ( test.exists() )
{
// do your computation
} else
{
// find problem in file path
}
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();
}
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());
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"/>
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();
}
Some formats, like PNG which is lossless, will ignore the quality setting.
Here is the sample code for saving bitmap to file :
public static File savebitmap(Bitmap bmp) throws IOException {
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
bmp.compress(Bitmap.CompressFormat.JPEG, 60, bytes);
File f = new File(Environment.getExternalStorageDirectory()
+ File.separator + "testimage.jpg");
f.createNewFile();
FileOutputStream fo = new FileOutputStream(f);
fo.write(bytes.toByteArray());
fo.close();
return f;
}
Now call this function to save the bitmap to internal memory.
File newfile = savebitmap(bitmap);
I hope it will help you.
Happy codeing life.
I know this question is old, but now we can achieve the same result without WRITE_EXTERNAL_STORAGE permission. Instead of we can use File provider.
private fun storeBitmap(bitmap: Bitmap, file: File){
requireContext().getUriForFile(file)?.run {
requireContext().contentResolver.openOutputStream(this)?.run {
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, this)
close()
}
}
}
How to retrieve file from provider ?
fun Context.getUriForFile(file: File): Uri? {
return FileProvider.getUriForFile(
this,
"$packageName.fileprovider",
file
)
}
Also do not forget register your provider in Android manifest
<provider
android:name="androidx.core.content.FileProvider"
android:authorities="${applicationId}.fileprovider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="#xml/file_paths"/>
</provider>
Why not call the Bitmap.compress method with 100 (which sounds like it is lossless)?
Bitmap bbicon;
bbicon=BitmapFactory.decodeResource(getResources(),R.drawable.bannerd10);
//ByteArrayOutputStream baosicon = new ByteArrayOutputStream();
//bbicon.compress(Bitmap.CompressFormat.PNG,0, baosicon);
//bicon=baosicon.toByteArray();
String extStorageDirectory = Environment.getExternalStorageDirectory().toString();
OutputStream outStream = null;
File file = new File(extStorageDirectory, "er.PNG");
try {
outStream = new FileOutputStream(file);
bbicon.compress(Bitmap.CompressFormat.PNG, 100, outStream);
outStream.flush();
outStream.close();
} catch(Exception e) {
}
I would also like to save a picture. But my problem(?) is that I want to save it from a bitmap that ive drawed.
I made it like this:
#Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.save_sign:
myView.save();
break;
}
return false;
}
public void save() {
String filename;
Date date = new Date(0);
SimpleDateFormat sdf = new SimpleDateFormat ("yyyyMMddHHmmss");
filename = sdf.format(date);
try{
String path = Environment.getExternalStorageDirectory().toString();
OutputStream fOut = null;
File file = new File(path, "/DCIM/Signatures/"+filename+".jpg");
fOut = new FileOutputStream(file);
mBitmap.compress(Bitmap.CompressFormat.JPEG, 85, fOut);
fOut.flush();
fOut.close();
MediaStore.Images.Media.insertImage(getContentResolver()
,file.getAbsolutePath(),file.getName(),file.getName());
}catch (Exception e) {
e.printStackTrace();
}
}
The way I found to send PNG and transparency.
String file_path = Environment.getExternalStorageDirectory().getAbsolutePath() +
"/CustomDir";
File dir = new File(file_path);
if(!dir.exists())
dir.mkdirs();
String format = new SimpleDateFormat("yyyyMMddHHmmss",
java.util.Locale.getDefault()).format(new Date());
File file = new File(dir, format + ".png");
FileOutputStream fOut;
try {
fOut = new FileOutputStream(file);
yourbitmap.compress(Bitmap.CompressFormat.PNG, 85, fOut);
fOut.flush();
fOut.close();
} catch (Exception e) {
e.printStackTrace();
}
Uri uri = Uri.fromFile(file);
Intent intent = new Intent(android.content.Intent.ACTION_SEND);
intent.setType("image/*");
intent.putExtra(android.content.Intent.EXTRA_SUBJECT, "");
intent.putExtra(android.content.Intent.EXTRA_TEXT, "");
intent.putExtra(Intent.EXTRA_STREAM, uri);
startActivity(Intent.createChooser(intent,"Sharing something")));
Save Bitmap to your Gallery Without Compress.
private File saveBitMap(Context context, Bitmap Final_bitmap) {
File pictureFileDir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), "Your Folder Name");
if (!pictureFileDir.exists()) {
boolean isDirectoryCreated = pictureFileDir.mkdirs();
if (!isDirectoryCreated)
Log.i("TAG", "Can't create directory to save the image");
return null;
}
String filename = pictureFileDir.getPath() + File.separator + System.currentTimeMillis() + ".jpg";
File pictureFile = new File(filename);
try {
pictureFile.createNewFile();
FileOutputStream oStream = new FileOutputStream(pictureFile);
Final_bitmap.compress(Bitmap.CompressFormat.PNG, 100, oStream);
oStream.flush();
oStream.close();
Toast.makeText(Full_Screen_Activity.this, "Save Image Successfully..", Toast.LENGTH_SHORT).show();
} catch (IOException e) {
e.printStackTrace();
Log.i("TAG", "There was an issue saving the image.");
}
scanGallery(context, pictureFile.getAbsolutePath());
return pictureFile;
}
private void scanGallery(Context cntx, String path) {
try {
MediaScannerConnection.scanFile(cntx, new String[]{path}, null, new MediaScannerConnection.OnScanCompletedListener() {
public void onScanCompleted(String path, Uri uri) {
Toast.makeText(Full_Screen_Activity.this, "Save Image Successfully..", Toast.LENGTH_SHORT).show();
}
});
} catch (Exception e) {
e.printStackTrace();
Log.i("TAG", "There was an issue scanning gallery.");
}
}
You want to save Bitmap to Directory of your Choice. I have made a library ImageWorker that enables the user to load, save and convert bitmaps/drawables/base64 images.
Min SDK - 14
Pre-requisite
Saving files would require WRITE_EXTERNAL_STORAGE permission.
Retrieving files would require READ_EXTERNAL_STORAGE permission.
Saving Bitmap/Drawable/Base64
ImageWorker.to(context).
directory("ImageWorker").
subDirectory("SubDirectory").
setFileName("Image").
withExtension(Extension.PNG).
save(sourceBitmap,85)
Loading Bitmap
val bitmap: Bitmap? = ImageWorker.from(context).
directory("ImageWorker").
subDirectory("SubDirectory").
setFileName("Image").
withExtension(Extension.PNG).
load()
Implementation
Add Dependencies
In Project Level Gradle
allprojects {
repositories {
...
maven { url 'https://jitpack.io' }
}
}
In Application Level Gradle
dependencies {
implementation 'com.github.ihimanshurawat:ImageWorker:0.51'
}
You can read more on https://github.com/ihimanshurawat/ImageWorker/blob/master/README.md
Make sure the directory is created before you call bitmap.compress:
new File(FileName.substring(0,FileName.lastIndexOf("/"))).mkdirs();
Create a video thumbnail for a video. It may return null if the video is corrupted or the format is not supported.
private void makeVideoPreview() {
Bitmap thumbnail = ThumbnailUtils.createVideoThumbnail(videoAbsolutePath, MediaStore.Images.Thumbnails.MINI_KIND);
saveImage(thumbnail);
}
To Save your bitmap in sdcard use the following code
Store Image
private void storeImage(Bitmap image) {
File pictureFile = getOutputMediaFile();
if (pictureFile == null) {
Log.d(TAG,
"Error creating media file, check storage permissions: ");// e.getMessage());
return;
}
try {
FileOutputStream fos = new FileOutputStream(pictureFile);
image.compress(Bitmap.CompressFormat.PNG, 90, fos);
fos.close();
} catch (FileNotFoundException e) {
Log.d(TAG, "File not found: " + e.getMessage());
} catch (IOException e) {
Log.d(TAG, "Error accessing file: " + e.getMessage());
}
}
To Get the Path for Image Storage
/** Create a File for saving an image or video */
private File getOutputMediaFile(){
// To be safe, you should check that the SDCard is mounted
// using Environment.getExternalStorageState() before doing this.
File mediaStorageDir = new File(Environment.getExternalStorageDirectory()
+ "/Android/data/"
+ getApplicationContext().getPackageName()
+ "/Files");
// This location works best if you want the created images to be shared
// between applications and persist after your app has been uninstalled.
// Create the storage directory if it does not exist
if (! mediaStorageDir.exists()){
if (! mediaStorageDir.mkdirs()){
return null;
}
}
// Create a media file name
String timeStamp = new SimpleDateFormat("ddMMyyyy_HHmm").format(new Date());
File mediaFile;
String mImageName="MI_"+ timeStamp +".jpg";
mediaFile = new File(mediaStorageDir.getPath() + File.separator + mImageName);
return mediaFile;
}
Some new devices don't save bitmap So I explained a little more..
make sure you have added below Permission
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
and create a xml file under xml folder name provider_paths.xml
<?xml version="1.0" encoding="utf-8"?>
<paths>
<external-path
name="external_files"
path="." />
</paths>
and in AndroidManifest under
<provider
android:name="android.support.v4.content.FileProvider"
android:authorities="${applicationId}.provider"
android:exported="false"
android:grantUriPermissions="true">
<meta-data
android:name="android.support.FILE_PROVIDER_PATHS"
android:resource="#xml/provider_paths"/>
</provider>
then simply call saveBitmapFile(passYourBitmapHere)
public static void saveBitmapFile(Bitmap bitmap) throws IOException {
File mediaFile = getOutputMediaFile();
FileOutputStream fileOutputStream = new FileOutputStream(mediaFile);
bitmap.compress(Bitmap.CompressFormat.JPEG, getQualityNumber(bitmap), fileOutputStream);
fileOutputStream.flush();
fileOutputStream.close();
}
where
File getOutputMediaFile() {
File mediaStorageDir = new File(
Environment.getExternalStorageDirectory(),
"easyTouchPro");
if (mediaStorageDir.isDirectory()) {
// Create a media file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss")
.format(Calendar.getInstance().getTime());
String mCurrentPath = mediaStorageDir.getPath() + File.separator
+ "IMG_" + timeStamp + ".jpg";
File mediaFile = new File(mCurrentPath);
return mediaFile;
} else { /// error handling for PIE devices..
mediaStorageDir.delete();
mediaStorageDir.mkdirs();
galleryAddPic(mediaStorageDir);
return (getOutputMediaFile());
}
}
and other methods
public static int getQualityNumber(Bitmap bitmap) {
int size = bitmap.getByteCount();
int percentage = 0;
if (size > 500000 && size <= 800000) {
percentage = 15;
} else if (size > 800000 && size <= 1000000) {
percentage = 20;
} else if (size > 1000000 && size <= 1500000) {
percentage = 25;
} else if (size > 1500000 && size <= 2500000) {
percentage = 27;
} else if (size > 2500000 && size <= 3500000) {
percentage = 30;
} else if (size > 3500000 && size <= 4000000) {
percentage = 40;
} else if (size > 4000000 && size <= 5000000) {
percentage = 50;
} else if (size > 5000000) {
percentage = 75;
}
return percentage;
}
and
void galleryAddPic(File f) {
Intent mediaScanIntent = new Intent(
"android.intent.action.MEDIA_SCANNER_SCAN_FILE");
Uri contentUri = Uri.fromFile(f);
mediaScanIntent.setData(contentUri);
this.sendBroadcast(mediaScanIntent);
}
Hey just give the name to .bmp
Do this:
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
_bitmapScaled.compress(Bitmap.CompressFormat.PNG, 40, bytes);
//you can create a new file name "test.BMP" in sdcard folder.
File f = new File(Environment.getExternalStorageDirectory()
+ File.separator + "**test.bmp**")
it'll sound that IM JUST FOOLING AROUND but try it once it'll get saved in bmp foramt..Cheers
After Android 4.4 Kitkat, and as of 2017 share of Android 4.4 and less is about 20% and decreasing, it's not possible to save to SD card using File class and getExternalStorageDirectory() method. This method returns your device internal memory and images save visible to every app. You can also save images only private to your app and to be deleted when user deletes your app with openFileOutput() method.
Starting with Android 6.0, you can format your SD card as an internal memory but only private to your device.(If you format SD car as internal memory, only your device can access or see it's contents) You can save to that SD card using other answers but if you want to use a removable SD card you should read my answer below.
You should use Storage Access Framework to get uri to folder onActivityResult method of activity to get folder selected by user, and add retreive persistiable permission to be able to access folder after user restarts the device.
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
// selectDirectory() invoked
if (requestCode == REQUEST_FOLDER_ACCESS) {
if (data.getData() != null) {
Uri treeUri = data.getData();
tvSAF.setText("Dir: " + data.getData().toString());
currentFolder = treeUri.toString();
saveCurrentFolderToPrefs();
// grantUriPermission(getPackageName(), treeUri,
// Intent.FLAG_GRANT_READ_URI_PERMISSION |
// Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
final int takeFlags = data.getFlags()
& (Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
// Check for the freshest data.
getContentResolver().takePersistableUriPermission(treeUri, takeFlags);
}
}
}
}
Now, save save folder to shared preferences not to ask user to select folder every time you want to save an image.
You should use DocumentFile class to save your image, not File or ParcelFileDescriptor, for more info you can check this thread for saving image to SD card with compress(CompressFormat.JPEG, 100, out); method and DocumentFile classes.
// |==| Create a PNG File from Bitmap :
void devImjFylFnc(String pthAndFylTtlVar, Bitmap iptBmjVar)
{
try
{
FileOutputStream fylBytWrtrVar = new FileOutputStream(pthAndFylTtlVar);
iptBmjVar.compress(Bitmap.CompressFormat.PNG, 100, fylBytWrtrVar);
fylBytWrtrVar.close();
}
catch (Exception errVar) { errVar.printStackTrace(); }
}
// |==| Get Bimap from File :
Bitmap getBmjFrmFylFnc(String pthAndFylTtlVar)
{
return BitmapFactory.decodeFile(pthAndFylTtlVar);
}