Develop Reference

Save a bitmap as image in Genymotion

I know this may be asked before and I tried with all the answers given here but it's not working.
I pick an image from gallery ,show it, then change some pixels and try to save it in sd card but it's not saved .
Layout :
<Button
android:id="#+id/pick_image_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Pick Image" />
<ImageView
android:id="#+id/image_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
.java file
Button buttonLoadImage = (Button)
rootView.findViewById(R.id.pick_image_button);
buttonLoadImage.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View arg0) {
Intent i = new Intent(Intent.ACTION_PICK);
File pictureDirectory=
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_ALARMS);
pictureDirectoryPath=pictureDirectory.getPath();
Uri data=Uri.parse(pictureDirectoryPath);
i.setDataAndType(data,"image/*");
startActivityForResult(i, RESULT_LOAD_IMAGE);
}
});
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RESULT_LOAD_IMAGE && resultCode == Activity.RESULT_OK
) {
try{
imageUri = data.getData();
Uri selectedImage = data.getData();
String[] filePathColumn = {MediaStore.Images.Media.DATA};
Cursor cursor =
getActivity().getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
picturePath = cursor.getString(columnIndex);
cursor.close();
}
catch (Exception e) {
e.printStackTrace();
}
Utility.showCustomAlert(picturePath,getActivity(),"error");
imageView = (ImageView) rootView.findViewById(R.id.image_view);
imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));
try{
inputstream =
getContext().getContentResolver().openInputStream(imageUri);
Bitmap bmp = BitmapFactory.decodeStream(inputstream);
imageView.setImageBitmap(bmp);
}
catch (Exception e)
{
e.printStackTrace();
}
}
Code to save the image (It's not the full code but the part to save it)
String sdCardDirectory =
Environment.getExternalStorageDirectory().getAbsolutePath();
File dir = new File(sdCardDirectory+ "/download");
dir.mkdirs();
String fname="imazh.png";
File file=new File(dir,fname);
if(file.exists())file.delete();
// Encode the file as a PNG image.
FileOutputStream outStream;
outStream = new FileOutputStream(file);
bmp.compress(Bitmap.CompressFormat.PNG, 100, outStream);
outStream.flush();
outStream.close();
success = true;
MediaScannerConnection.scanFile(getContext(),
new String[] { file.toString() }, null,
new MediaScannerConnection.OnScanCompletedListener() {
public void onScanCompleted(String path, Uri uri) {
}
});
I've added the permission in manifest file

Share photo on Facebook Android SDK

I'm trying to share a photo on Facebook with Android SDK.
The problem is that my Bitmap image is null. This is my code:
public void sharePhoto(View view) {
if (Session.getInstance().getUserFace().getBestphoto() == null) {
Intent i = new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, RESULT_LOAD_IMAGE);
}
}
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK && null != data) {
Uri selectedImage = data.getData();
String[] filePathColumn = {MediaStore.Images.Media.DATA};
Cursor cursor = getContentResolver().query(selectedImage, filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
String picturePath = cursor.getString(columnIndex);
cursor.close();
Log.d("picture path", picturePath);
BitmapFactory.Options options = new BitmapFactory.Options();
try {
Bitmap image = BitmapFactory.decodeFile(picturePath, options);
uploadPhoto(image);
} catch (OutOfMemoryError e) {
try {
options = new BitmapFactory.Options();
options.inSampleSize = 2;
Bitmap image = BitmapFactory.decodeFile(picturePath, options);
uploadPhoto(image);
} catch (Exception ex) {
Log.e("EXCEPTION", ex.toString());
}
}
}
}
private void uploadPhoto(Bitmap image) {
Log.d("Image", "" + image);
SharePhoto photo = new SharePhoto.Builder()
.setBitmap(image)
.build();
SharePhotoContent content = new SharePhotoContent.Builder()
.addPhoto(photo)
.build();
ShareDialog.show(MainActivity.this, content);
}

You can try getting the bitmap from InputStream instead. Use this,
BitmapFactory.decodeStream(resolver.openInputStream(uri), null, options);
where resolver is your ContentResolver and uri is returned by data.getData();
You won't need to query the database, unless you wanna check for any FileNotFoundException.

File file = new File(picturePath);
Uri imageUri = Uri.fromFile(file.getAbsoluteFile());
try {
Bitmap image = BitmapFactory.decodeStream(mContext.getContentResolver().openInputStream(imageUri));
uploadPhoto(image);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
Your "picturePath" cursor from MediaStore, it maybe like this /storage/emulated/0/DCIM/Camera/IMG20200513xx.jpg.
You can try to changing path to content URI (file:///storage/emulated/0/DCIM/Camera/IMG20200513xx.jpg).
Use content provider's getContentResolver() to open your image. Then decode image to Bitmap.

Camera Activity not returns path of image

I have task to capture image from camera and send that image to crop Intent. following is the code i have written
for camera capture
Intent captureIntent = new Intent(
MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(captureIntent, CAMERA_CAPTURE);
In on Activity result
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == RESULT_OK) {
if (requestCode == CAMERA_CAPTURE) {
// get the Uri for the captured image
picUri = data.getData(); // picUri is global string variable
performCrop();
}
}
}
public void performCrop() {
try {
Intent cropIntent = new Intent("com.android.camera.action.CROP");
cropIntent.setDataAndType(picUri, "image/*");
cropIntent.putExtra("crop", "true");
cropIntent.putExtra("aspectX", 3);
cropIntent.putExtra("aspectY", 2);
cropIntent.putExtra("outputX", 256);
cropIntent.putExtra("outputY", 256);
cropIntent.putExtra("return-data", true);
startActivityForResult(cropIntent, CROP_PIC);
} catch (ActivityNotFoundException anfe) {
String errorMessage = "Your device doesn't support the crop action";
Toast toast = Toast.makeText(getApplicationContext(), errorMessage,
Toast.LENGTH_SHORT);
toast.show();
}
}
I am getting different behaviours on different devices
In some devices i am getting error "couldn't find item".
In some devices after capturing image activity stuck and doesn't go ahead
I have also tried this
Please tell me the Right way to do this

You can by calling the intent like below:
int REQUEST_IMAGE_CAPTURE = 1;
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
File f = new File(android.os.Environment.getExternalStorageDirectory(), "temp.jpg");
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(f));
((Activity) context).startActivityForResult(intent, REQUEST_IMAGE_CAPTURE);
And in your activity inside OnActivityResult you get the path like this:
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode == RESULT_OK) {
if (requestCode == REQUEST_IMAGE_CAPTURE) {
File f = new File(Environment.getExternalStorageDirectory().toString());
for (File temp : f.listFiles()) {
if (temp.getName().equals("temp.jpg")) {
f = temp;
break;
}
}
try {
BitmapFactory.Options bitmapOptions = new BitmapFactory.Options();
Bitmap bitmap = BitmapFactory.decodeFile(f.getAbsolutePath(),
bitmapOptions);
Matrix matrix = new Matrix();
matrix.postRotate(-90);
Bitmap rotatedBitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
rotatedBitmap.compress(Bitmap.CompressFormat.PNG, 100, byteArrayOutputStream);
byte[] attachmentBytes = byteArrayOutputStream.toByteArray();
String attachmentData = Base64.encodeToString(attachmentBytes, Base64.DEFAULT);
String path = android.os.Environment
.getExternalStorageDirectory()
+ File.separator
+ "CTSTemp" + File.separator + "default";
f.delete();
ESLogging.debug("Bytes size = " + attachmentBytes.length);
ESLogging.debug("FilePath = " + path);
OutputStream outFile = null;
File file = new File(path, String.valueOf(System.currentTimeMillis()) + ".jpg");
try {
outFile = new FileOutputStream(file);
bitmap.compress(Bitmap.CompressFormat.JPEG, 85, outFile);
outFile.flush();
outFile.close();
} catch (FileNotFoundException e) {
ESLogging.error("FileNotFoundException while uploading new attachment in class HomeActivity", e);
e.printStackTrace();
} catch (IOException e) {
ESLogging.error("IOException while uploading new attachment in class HomeActivity", e);
e.printStackTrace();
} catch (Exception e) {
ESLogging.error("Exception while uploading new attachment in class HomeActivity", e);
e.printStackTrace();
}
} catch (Exception e) {
ESLogging.error("Exception while uploading new attachment in class HomeActivity", e);
e.printStackTrace();
}
}
}
}

//Declare this in class
private static int RESULT_LOAD_IMAGE = 1;
String picturePath="";
// write in button click event
Intent i = new Intent(Intent.ACTION_PICK,android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(i, RESULT_LOAD_IMAGE);
//copy this code in after onCreate()
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == RESULT_LOAD_IMAGE && resultCode == RESULT_OK
&& null != data) {
Uri selectedImage = data.getData();
String[] filePathColumn = { MediaStore.Images.Media.DATA };
Cursor cursor = getContentResolver().query(selectedImage,
filePathColumn, null, null, null);
cursor.moveToFirst();
int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
picturePath = cursor.getString(columnIndex);
cursor.close();
ImageView imageView = (ImageView) findViewById(R.id.img); //place imageview in your xml file
imageView.setImageBitmap(BitmapFactory.decodeFile(picturePath));
}
}
write the following permission in manifest file
1.read external storage
2.write external storage

try this tutorial http://www.androidhive.info/2013/09/android-working-with-camera-api/ this will help you

Low picture/image quality when capture from camera

I have one problem. When I try to get picture from camera, the quality is very low.
At first, capture the picture using camera, than save to the directory and at the same time get that picture and show in my app.The picture saved inside directory is a fine quality but when I get it from directory, the quality is low. below is my sample code :
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
if (requestCode == CAMERA_PIC_REQUEST) {
Bitmap thumbnail = (Bitmap) intent.getExtras().get("data");
if (g==1)
{
ImageView myImage = (ImageView) findViewById(R.id.img5);
myImage.setImageBitmap(thumbnail);
View a = findViewById(R.id.img5);
a.setVisibility(View.VISIBLE);
ByteArrayOutputStream stream = new ByteArrayOutputStream();
thumbnail.compress(Bitmap.CompressFormat.JPEG, 100, stream);
byteArray1 = stream.toByteArray();
}
}
any solution/suggestion?
Thanks :)
Solved
The problem solved when I follow the code given by Antrromet below

I have used the following code and this works perfectly fine for me.
values = new ContentValues();
values.put(MediaStore.Images.Media.TITLE, "New Picture");
values.put(MediaStore.Images.Media.DESCRIPTION, "From your Camera");
imageUri = getContentResolver().insert(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
startActivityForResult(intent, PICTURE_RESULT);
and also
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case PICTURE_RESULT:
if (requestCode == PICTURE_RESULT)
if (resultCode == Activity.RESULT_OK) {
try {
thumbnail = MediaStore.Images.Media.getBitmap(
getContentResolver(), imageUri);
imgView.setImageBitmap(thumbnail);
imageurl = getRealPathFromURI(imageUri);
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
and
public String getRealPathFromURI(Uri contentUri) {
String[] proj = { MediaStore.Images.Media.DATA };
Cursor cursor = managedQuery(contentUri, proj, null, null, null);
int column_index = cursor
.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}

I will give you something that work for me. I asked the same !
Solution to save a picture in a specific folder without lost quality
I FOUND THE SOLUTION:
//Create a new folder code:
String path = String.valueOf(Environment.getExternalStorageDirectory()) + "/your_name_folder";
try {
File ruta_sd = new File(path);
File folder = new File(ruta_sd.getAbsolutePath(), nameFol);
boolean success = true;
if (!folder.exists()) {
success = folder.mkdir();
}
if (success) {
Toast.makeText(MainActivity.this, "Carpeta Creada...", Toast.LENGTH_SHORT).show();
}
} catch (Exception ex) {
Log.e("Carpetas", "Error al crear Carpeta a tarjeta SD");
}
Intent i = new Intent(MainActivity.this, MainActivity.class);
startActivity(i);
finish();//agregue este
//Method to take a Picture
public void clickFoto(View view) {
takePic();
}
//takePic()
private void takePic() {
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
*File file = new File(Environment.getExternalStorageDirectory(), "/your_name_folder/a" + "/photo_" + timeStamp + ".png");*
imageUri = Uri.fromFile(file);
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
startActivityForResult(intent, PICTURE_RESULT);
}
//onActivityResult
public void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case PICTURE_RESULT:
if (requestCode == PICTURE_RESULT)
if (resultCode == Activity.RESULT_OK) {
try {
Bitmap thumbnail = MediaStore.Images.Media.getBitmap(
getContentResolver(), imageUri);
imgFoto.setImageBitmap(thumbnail);
imageurl = getRealPathFromURI(imageUri);
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
// getRealPathFromUri
public String getRealPathFromURI(Uri contentUri) {
String[] proj = {MediaStore.Images.Media.DATA};
Cursor cursor = managedQuery(contentUri, proj, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
return cursor.getString(column_index);
}

Add the photo to a gallery
.
.
private void galleryAddPic() {
Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
File f = new File(currentPhotoPath);
Uri contentUri = Uri.fromFile(f);
mediaScanIntent.setData(contentUri);
this.sendBroadcast(mediaScanIntent);
}
for more detail : https://developer.android.com/training/camera/photobasics.html

Why i am not able to take image from camera but can able to get image from Gallery in android?

I am using this code to fetch Image from gallery:
fromGalleryButton.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
canvasPictureDialog.dismiss();
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);//
//startActivity(intent);
startActivityForResult(Intent.createChooser(intent, "Select Picture"),10);
//finish();
}
});
And to take image from camera i use this code:
private static final int TAKE_PHOTO_CODE = 1;
private void takePhoto(){
final Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(getTempFile(this)) );
startActivityForResult(intent, TAKE_PHOTO_CODE);
}
private File getTempFile(Context context){
//it will return /sdcard/image.tmp
//final File path = new File( Environment.getExternalStorageDirectory(), context.getPackageName() );
final File path = new File( Environment.getExternalStorageDirectory(), context.getPackageName());
if(!path.exists()){
path.mkdir();
}
return new File(path, "image.tmp");
}
And common code for onActivityResult is:
#Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 10 && resultCode == Activity.RESULT_OK) {
Uri contentUri = data.getData();
String[] proj = { MediaStore.Images.Media.DATA };
Cursor cursor = managedQuery(contentUri, proj, null, null, null);
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
cursor.moveToFirst();
imagePath = cursor.getString(column_index);
//Bitmap croppedImage = BitmapFactory.decodeFile(imagePath);
tempBitmap = BitmapFactory.decodeFile(imagePath);
photoBitmap = Bitmap.createScaledBitmap(tempBitmap, display.getWidth(), display.getHeight(), true);
}
if(resultCode == RESULT_OK && requestCode==TAKE_PHOTO_CODE){
final File file = getTempFile(this);
try {
tempBitmap = Media.getBitmap(getContentResolver(), Uri.fromFile(file) );
photoBitmap = Bitmap.createScaledBitmap(tempBitmap, display.getWidth(), display.getHeight(), true);
// do whatever you want with the bitmap (Resize, Rename, Add To Gallery, etc)
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
Now with using this code i am drawing the image on canvas:
if(!(imagePath==null))
{
//tempBitmap = BitmapFactory.decodeFile(imagePath);
//photoBitmap = Bitmap.createScaledBitmap(tempBitmap, display.getWidth(), display.getHeight(), true);
canvas.drawBitmap (photoBitmap,0, 0, null);
}
But with that use, I am able to get Image from gallery but not from the camera. Why ??
Whats wrong in my code ??
Thanks.

Well, I have solve this problem for my own way.
There is a logical mistake. I have taken the if condition on imagePath variable which can not works for the taking image from camera.
I have taken one boolean Variable and set it for Taking Image from Camera and it works for me.
Anyway, Thanks for the Comments and help.
Thanks.