How to get BitMap, Bytearray or Base64 string from Camera












0















I need to get the bitmap, bytearray or base64 string of an image that I captured with the Android camera.



To start the capture I am using this.



Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
// Ensure that there's a camera activity to handle the intent
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
// Create the File where the photo should go
File photoFile = null;
try {
photoFile = createImageFile();
} catch (IOException ex) {
// Error occurred while creating the File

}
// Continue only if the File was successfully created
if (photoFile != null) {
Uri photoURI = FileProvider.getUriForFile(getApplicationContext(),
"com.myapp.app.fileprovider",
photoFile);
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
}
}


I am able to save the photo to the gallery using this



private File createImageFile() throws IOException {
// Create an image file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "JPEG_" + timeStamp + "_";
File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
File image = File.createTempFile(
imageFileName, /* prefix */
".jpg", /* suffix */
storageDir /* directory */
);

// Save a file: path for use with ACTION_VIEW intents
mCurrentPhotoPath = image.getAbsolutePath();
return image;
}


And this is what I have tried so far but the bitmap variable seem to stay null.



@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);

/*if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Bitmap imageBitmap = (Bitmap) extras.get("data");
mImageView.setVisibility(View.VISIBLE);
mImageView.setImageBitmap(imageBitmap);
}*/
try {
switch (requestCode) {

case 1: {
if (resultCode == RESULT_OK) {

File file = new File(mCurrentPhotoPath);
Toast.makeText(this, mCurrentPhotoPath, Toast.LENGTH_SHORT).show();
Bitmap bitmap = MediaStore.Images.Media.getBitmap(getApplicationContext().getContentResolver(), Uri.fromFile(file));
if (bitmap != null) {

ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, byteArrayOutputStream);
byte byteArray = byteArrayOutputStream.toByteArray();

String encoded = Base64.encodeToString(byteArray, Base64.DEFAULT);
Base = encoded;

if (Base != "") {
mCheck.setChecked(true);
}
}
}
break;
}
}

} catch (Exception error) {
error.printStackTrace();
}


Any help will be greatly appreciated.










share|improve this question

























  • Is mCurrentPhotoPath correct in your Toast?

    – Alex Cohn
    Nov 16 '18 at 16:00











  • @AlexCohn it seems to be null and I have no idea why

    – L.Lieb
    Nov 17 '18 at 10:32













  • The typical cause is that the activity is killed by system while taking the picture. You need to use onSaveInstanceState() as explained here.

    – Alex Cohn
    Nov 17 '18 at 21:06
















0















I need to get the bitmap, bytearray or base64 string of an image that I captured with the Android camera.



To start the capture I am using this.



Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
// Ensure that there's a camera activity to handle the intent
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
// Create the File where the photo should go
File photoFile = null;
try {
photoFile = createImageFile();
} catch (IOException ex) {
// Error occurred while creating the File

}
// Continue only if the File was successfully created
if (photoFile != null) {
Uri photoURI = FileProvider.getUriForFile(getApplicationContext(),
"com.myapp.app.fileprovider",
photoFile);
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
}
}


I am able to save the photo to the gallery using this



private File createImageFile() throws IOException {
// Create an image file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "JPEG_" + timeStamp + "_";
File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
File image = File.createTempFile(
imageFileName, /* prefix */
".jpg", /* suffix */
storageDir /* directory */
);

// Save a file: path for use with ACTION_VIEW intents
mCurrentPhotoPath = image.getAbsolutePath();
return image;
}


And this is what I have tried so far but the bitmap variable seem to stay null.



@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);

/*if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Bitmap imageBitmap = (Bitmap) extras.get("data");
mImageView.setVisibility(View.VISIBLE);
mImageView.setImageBitmap(imageBitmap);
}*/
try {
switch (requestCode) {

case 1: {
if (resultCode == RESULT_OK) {

File file = new File(mCurrentPhotoPath);
Toast.makeText(this, mCurrentPhotoPath, Toast.LENGTH_SHORT).show();
Bitmap bitmap = MediaStore.Images.Media.getBitmap(getApplicationContext().getContentResolver(), Uri.fromFile(file));
if (bitmap != null) {

ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, byteArrayOutputStream);
byte byteArray = byteArrayOutputStream.toByteArray();

String encoded = Base64.encodeToString(byteArray, Base64.DEFAULT);
Base = encoded;

if (Base != "") {
mCheck.setChecked(true);
}
}
}
break;
}
}

} catch (Exception error) {
error.printStackTrace();
}


Any help will be greatly appreciated.










share|improve this question

























  • Is mCurrentPhotoPath correct in your Toast?

    – Alex Cohn
    Nov 16 '18 at 16:00











  • @AlexCohn it seems to be null and I have no idea why

    – L.Lieb
    Nov 17 '18 at 10:32













  • The typical cause is that the activity is killed by system while taking the picture. You need to use onSaveInstanceState() as explained here.

    – Alex Cohn
    Nov 17 '18 at 21:06














0












0








0








I need to get the bitmap, bytearray or base64 string of an image that I captured with the Android camera.



To start the capture I am using this.



Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
// Ensure that there's a camera activity to handle the intent
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
// Create the File where the photo should go
File photoFile = null;
try {
photoFile = createImageFile();
} catch (IOException ex) {
// Error occurred while creating the File

}
// Continue only if the File was successfully created
if (photoFile != null) {
Uri photoURI = FileProvider.getUriForFile(getApplicationContext(),
"com.myapp.app.fileprovider",
photoFile);
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
}
}


I am able to save the photo to the gallery using this



private File createImageFile() throws IOException {
// Create an image file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "JPEG_" + timeStamp + "_";
File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
File image = File.createTempFile(
imageFileName, /* prefix */
".jpg", /* suffix */
storageDir /* directory */
);

// Save a file: path for use with ACTION_VIEW intents
mCurrentPhotoPath = image.getAbsolutePath();
return image;
}


And this is what I have tried so far but the bitmap variable seem to stay null.



@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);

/*if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Bitmap imageBitmap = (Bitmap) extras.get("data");
mImageView.setVisibility(View.VISIBLE);
mImageView.setImageBitmap(imageBitmap);
}*/
try {
switch (requestCode) {

case 1: {
if (resultCode == RESULT_OK) {

File file = new File(mCurrentPhotoPath);
Toast.makeText(this, mCurrentPhotoPath, Toast.LENGTH_SHORT).show();
Bitmap bitmap = MediaStore.Images.Media.getBitmap(getApplicationContext().getContentResolver(), Uri.fromFile(file));
if (bitmap != null) {

ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, byteArrayOutputStream);
byte byteArray = byteArrayOutputStream.toByteArray();

String encoded = Base64.encodeToString(byteArray, Base64.DEFAULT);
Base = encoded;

if (Base != "") {
mCheck.setChecked(true);
}
}
}
break;
}
}

} catch (Exception error) {
error.printStackTrace();
}


Any help will be greatly appreciated.










share|improve this question
















I need to get the bitmap, bytearray or base64 string of an image that I captured with the Android camera.



To start the capture I am using this.



Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
// Ensure that there's a camera activity to handle the intent
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
// Create the File where the photo should go
File photoFile = null;
try {
photoFile = createImageFile();
} catch (IOException ex) {
// Error occurred while creating the File

}
// Continue only if the File was successfully created
if (photoFile != null) {
Uri photoURI = FileProvider.getUriForFile(getApplicationContext(),
"com.myapp.app.fileprovider",
photoFile);
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, photoURI);
startActivityForResult(takePictureIntent, REQUEST_TAKE_PHOTO);
}
}


I am able to save the photo to the gallery using this



private File createImageFile() throws IOException {
// Create an image file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "JPEG_" + timeStamp + "_";
File storageDir = getExternalFilesDir(Environment.DIRECTORY_PICTURES);
File image = File.createTempFile(
imageFileName, /* prefix */
".jpg", /* suffix */
storageDir /* directory */
);

// Save a file: path for use with ACTION_VIEW intents
mCurrentPhotoPath = image.getAbsolutePath();
return image;
}


And this is what I have tried so far but the bitmap variable seem to stay null.



@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);

/*if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {
Bundle extras = data.getExtras();
Bitmap imageBitmap = (Bitmap) extras.get("data");
mImageView.setVisibility(View.VISIBLE);
mImageView.setImageBitmap(imageBitmap);
}*/
try {
switch (requestCode) {

case 1: {
if (resultCode == RESULT_OK) {

File file = new File(mCurrentPhotoPath);
Toast.makeText(this, mCurrentPhotoPath, Toast.LENGTH_SHORT).show();
Bitmap bitmap = MediaStore.Images.Media.getBitmap(getApplicationContext().getContentResolver(), Uri.fromFile(file));
if (bitmap != null) {

ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, byteArrayOutputStream);
byte byteArray = byteArrayOutputStream.toByteArray();

String encoded = Base64.encodeToString(byteArray, Base64.DEFAULT);
Base = encoded;

if (Base != "") {
mCheck.setChecked(true);
}
}
}
break;
}
}

} catch (Exception error) {
error.printStackTrace();
}


Any help will be greatly appreciated.







bitmap base64 android-camera-intent






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 16 '18 at 15:56









Alex Cohn

42.3k555195




42.3k555195










asked Nov 16 '18 at 11:50









L.LiebL.Lieb

12




12













  • Is mCurrentPhotoPath correct in your Toast?

    – Alex Cohn
    Nov 16 '18 at 16:00











  • @AlexCohn it seems to be null and I have no idea why

    – L.Lieb
    Nov 17 '18 at 10:32













  • The typical cause is that the activity is killed by system while taking the picture. You need to use onSaveInstanceState() as explained here.

    – Alex Cohn
    Nov 17 '18 at 21:06



















  • Is mCurrentPhotoPath correct in your Toast?

    – Alex Cohn
    Nov 16 '18 at 16:00











  • @AlexCohn it seems to be null and I have no idea why

    – L.Lieb
    Nov 17 '18 at 10:32













  • The typical cause is that the activity is killed by system while taking the picture. You need to use onSaveInstanceState() as explained here.

    – Alex Cohn
    Nov 17 '18 at 21:06

















Is mCurrentPhotoPath correct in your Toast?

– Alex Cohn
Nov 16 '18 at 16:00





Is mCurrentPhotoPath correct in your Toast?

– Alex Cohn
Nov 16 '18 at 16:00













@AlexCohn it seems to be null and I have no idea why

– L.Lieb
Nov 17 '18 at 10:32







@AlexCohn it seems to be null and I have no idea why

– L.Lieb
Nov 17 '18 at 10:32















The typical cause is that the activity is killed by system while taking the picture. You need to use onSaveInstanceState() as explained here.

– Alex Cohn
Nov 17 '18 at 21:06





The typical cause is that the activity is killed by system while taking the picture. You need to use onSaveInstanceState() as explained here.

– Alex Cohn
Nov 17 '18 at 21:06












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