I am trying to save an Image from image view but i am getting exception (Read-only file system)
I have tried this code,
bitmap1 = imageView.getDrawingCache(); //for retrieving the Image
public void saveOnClick(View view)
{
try
{
String filename="qrimage";
FileOutputStream out = new FileOutputStream(filename);
bitmap1.compress(Bitmap.CompressFormat.PNG, 90, out);
Toast.makeText(getApplicationContext(), "Saved", Toast.LENGTH_SHORT).show();
}
catch (Exception e)
{
e.printStackTrace();
Toast.makeText(getApplicationContext(), e.getMessage()+" Not Saved!", Toast.LENGTH_SHORT).show();
}
}
User permission
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
here is a saving function
void Save() {
final File myDir = new File(folder);
myDir.mkdirs();
final Random generator = new Random();
int n = 10000;
n = generator.nextInt(n);
final String fname = "StyleMe-" + n + ".png";
file = new File(myDir, fname);
if (file.exists())
file.delete();
try {
mCBitmap.compress(CompressFormat.JPEG, 100, out);
out.flush();
out.close();
sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED,
Uri.parse("file://"
+ Environment.getExternalStorageDirectory())));
Toast.makeText(getApplication(), "Image Saved", Toast.LENGTH_SHORT)
.show();
} catch (final Exception e) {
}
}
just call Save(); in onClick of your button.
P.S you'll have to modify the name and the Bitmap name.
--- Declare these as global
static File file;
String folder = "/sdcard/Pictures/YourFolderName";
and don't forget to set the permission to read and write to the storage.
Try this way
public void saveOnClick(View view)
{
try
{
imageView.setDrawingCacheEnabled(true); //UPDATE HERE
imageView.buildDrawingCache(); //UPDATE HERE
bitmap1 = imageView.getDrawingCache(); //UPDATE HERE
String filename="qrimage";
FileOutputStream out = new FileOutputStream(filename);
bitmap1.compress(Bitmap.CompressFormat.PNG, 90, out);
Toast.makeText(getApplicationContext(), "Saved", Toast.LENGTH_SHORT).show();
}
catch (Exception e)
{
e.printStackTrace();
Toast.makeText(getApplicationContext(), e.getMessage()+" Not Saved!", Toast.LENGTH_SHORT).show();
}
}
First make sure that your app has the storage permission enabled:
Go to Device Settings>Device>Applications>Application Manager>"your app">Permissions>Enable Storage permission!
Permissions in manifest:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
So, if you want to create your own directory in your File Storage you can use somethibng like:
String myDate = getCurrentDateAndTime();
FileOutputStream outStream = null;
File sdCard = Environment.getExternalStorageDirectory();
File dir = new File(sdCard.getAbsolutePath() + "/YourFolderName");
dir.mkdirs();
String fileName = "YourFileName_"+myDate+".jpg";
File outFile = new File(dir, fileName);
outStream = new FileOutputStream(outFile);
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, outStream);
outStream.flush();
outStream.close();
//to refresh the gallery
Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
intent.setData(Uri.fromFile(file));
sendBroadcast(intent);
}
Hope this helps!
Related
I want to save image to Pictures folder in android. I do not have any external memory card attached.
Code:
String ImageDirectory = "QrCode";
#RequiresApi(api = Build.VERSION_CODES.N)
public void saveImage(Bitmap myBitmap, String busNumber, String imageName, EditText imagePath) {
String IMAGE_DIRECTORY = "QRCode";
try (ByteArrayOutputStream bytes = new ByteArrayOutputStream()) {
myBitmap.compress(Bitmap.CompressFormat.JPEG, 90, bytes);
File wallpaperDirectory = new File( Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),IMAGE_DIRECTORY+ "/" + busNumber );
// have the object build the directory structure, if needed.
if (!wallpaperDirectory.exists()) {
Log.d("dirrrrrr", "" + wallpaperDirectory.mkdirs());
wallpaperDirectory.mkdirs();
}
try {
File f = new File(wallpaperDirectory, imageName + ".jpeg");
imagePath.setText("Sandeep");
f.createNewFile(); //give read write permission
imagePath.setText("Chintu");
FileOutputStream fo = new FileOutputStream(f);
fo.write(bytes.toByteArray());
MediaScannerConnection.scanFile(this,
new String[]{f.getPath()},
new String[]{"image/jpeg"}, null);
imagePath.setText("f.getAbsolutePath()");
fo.close();
Log.d("TAG", "File Saved::--->" + f.getAbsolutePath());
Toast.makeText(getBaseContext(), f.getAbsolutePath(), Toast.LENGTH_SHORT).show();
//return f.getAbsolutePath();
} catch (IOException e1) {
e1.printStackTrace();
//imagePath.setText("Pintu");
}
} catch (IOException e) {
e.printStackTrace();
}
}
imagePath.setText("Sandeep"); is executed. But imagePath.setText("Chintu"); is not executed. So, it throws exception at f.createNewFile(); catch block is executed and imagePath.setText("Pintu"); is executed
manifestfile:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
You are using wroing picture directory. The path of Picture directory:
File pictureDir= Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
File file = new File(pictureDir, "ImageName.jpg");
I am trying to store my image from imageView in bitmap, so that I can store it in the gallery of the android device. Every time I save an image, the background of the imageView is not stored. What am I missing?
Here is my code:
ImageView imageView = (ImageView) findViewById(R.id.img);
imageView.setBackgroundResource(R.drawable.img1);
BitmapDrawable draw = (BitmapDrawable) imageView.getDrawable();
Bitmap bitmap = draw.getBitmap();
Code to store the image into the gallery is:
FileOutputStream outStream = null;
File dir = new File(
Environment
.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),
"MyAlbum");
if (!dir.exists()) {
if (!dir.mkdirs()) {
Log.d("MyAlbum", "failed to create directory");
Toast.makeText(MainActivity.this, "Failed to make directory", Toast.LENGTH_SHORT).show();
}
}
String fileName = String.format("%d.jpg", System.currentTimeMillis());
File outFile = new File(dir, fileName);
try {
outStream = new FileOutputStream(outFile);
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, outStream);
outStream.flush();
outStream.close();
Toast.makeText(getApplicationContext(), "PICTURE SAVED", Toast.LENGTH_SHORT).show();
Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
intent.setData(Uri.fromFile(dir));
sendBroadcast(intent);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
You can take a screenshot of this view (ImageView) in this case, it will simply take what's drawn on this view at this moment and turn it into a bitmap you can save.
Answer is mentioned here already.
The magical part is that
ImageView yourImageView = .. // Get reference it to your view.
yourImageView.setDrawingCacheEnabled(true);
Bitmap bitmap = Bitmap.createBitmap(yourImageView.getDrawingCache());
yourImageView.setDrawingCacheEnabled(false);
Ta-da you can use your snapshot btimap.
you can try this out,
private void saveImageToStorage(Bitmap finalBitmap, String image_name) {
String root = Environment.getExternalStorageDirectory().toString();
File myDir = new File(root);
myDir.mkdirs();
String fname = "Image-" + image_name+ ".jpg";
File file = new File(myDir, fname);
if (file.exists()) file.delete();
Log.i("LOAD", root + fname);
try {
FileOutputStream out = new FileOutputStream(file);
finalBitmap.compress(Bitmap.CompressFormat.JPEG, 90, out);
out.flush();
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
Happy coding :-)
I used this code to save the image:
mImageView.buildDrawingCache();
Bitmap bmap = mImageView.getDrawingCache();
OutputStream fOut = null;
Uri outputFileUri;
try {
File root = new File(Environment.getExternalStorageDirectory()
+ File.separator + "folder_name" + File.separator);
root.mkdirs();
File sdImageMainDirectory = new File(root, "myPicName.jpg");
outputFileUri = Uri.fromFile(sdImageMainDirectory);
fOut = new FileOutputStream(sdImageMainDirectory);
}
catch (Exception e) {
Toast.makeText(this, "Error occured. Please try again later.",
Toast.LENGTH_SHORT).show();
}
try {
bmap.compress(Bitmap.CompressFormat.PNG, 100, fOut);
fOut.flush();
fOut.close();
}
catch (Exception e) {
}
In this way the image is saved in the phone but is not visible in the phone gallery. How so? and then I wanted to know how to save to the internal memory instead of the sd card. Thanks.
The simplest way to save Image to android Gallery is:
MediaStore.Images.Media.insertImage(getContentResolver(), bitmap, imageTitle, imageDescriprion);
And add the android permission to your AndroidManifest:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
I'm having problems implementing this code Saving and Reading Bitmaps/Images from Internal memory in Android
to save and retrieve the image that I want, here is my code:
ContextWrapper cw = new ContextWrapper(getApplicationContext());
// path to /data/data/yourapp/app_data/imageDir
File directory = cw.getDir("imageDir", Context.MODE_PRIVATE);
// Create imageDir
File mypath=new File(directory, + name + "profile.jpg");
FileOutputStream fos = null;
try {
fos = new FileOutputStream(mypath);
// Use the compress method on the BitMap object to write image to the OutputStream
myBitmap.compress(Bitmap.CompressFormat.PNG, 100, fos);
fos.close();
} catch (Exception e) {
e.printStackTrace();
}
and to retrieve(I don't know if I'm doing wrong)
#Override
protected void onResume()
{
super.onResume();
try {
File f = new File("imageDir/" + rowID, "profile.jpg");
Bitmap b = BitmapFactory.decodeStream(new FileInputStream(f));
image = (ImageView) findViewById(R.id.imageView2);
image.setImageBitmap(b);
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
and nothing happens so what should I change??
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;
}
I think Faibo's answer should be accepted, as the code example is correct, well written and should solve your specific problem, without a hitch.
In case his solution doesn't meet your needs, I want to suggest an alternative approach.
It's very simple to store image data as a blob in a SQLite DB and retrieve as a byte array. Encoding and decoding takes just a few lines of code (for each), works like a charm and is surprisingly efficient.
I'll provide a code example upon request.
Good luck!
Note that you are saving the pick as name + profile.jpg under imageDir directory and you're trying to retrieve as profile.jpg under imageDir/[rowID] directory check that.
I got it working!
First make sure that your app has the storage permission enabled:
Go to Device Settings>Device>Applications>Application Manager>"your app">Permissions>Enable Storage permission!
Permissions in manifest:
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
So, if you want to create your own directory in your File Storage you can use somethibng like:
FileOutputStream outStream = null;
File sdCard = Environment.getExternalStorageDirectory();
File dir = new File(sdCard.getAbsolutePath() + "/camtest");
dir.mkdirs();
String fileName = String.format("%d.jpg", System.currentTimeMillis());
File outFile = new File(dir, fileName);
outStream = new FileOutputStream(outFile);
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, outStream);
outStream.flush();
outStream.close();
refreshGallery(outFile);
Else, if you want to create a sub directory in your default device DCIM folder and then want to view your image in a separate folder in gallery:
FileOutputStream fos= null;
File file = getDisc();
if(!file.exists() && !file.mkdirs()) {
//Toast.makeText(this, "Can't create directory to store image", Toast.LENGTH_LONG).show();
//return;
print("file not created");
return;
}
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyymmsshhmmss");
String date = simpleDateFormat.format(new Date());
String name = "FileName"+date+".jpg";
String file_name = file.getAbsolutePath()+"/"+name;
File new_file = new File(file_name);
print("new_file created");
try {
fos= new FileOutputStream(new_file);
Bitmap bitmap = viewToBitmap(iv, iv.getWidth(), iv.getHeight() );
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);
Toast.makeText(this, "Save success", Toast.LENGTH_LONG).show();
fos.flush();
fos.close();
} catch (FileNotFoundException e) {
print("FNF");
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
refreshGallery(new_file);
Helper functions:
public void refreshGallery(File file){
Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
intent.setData(Uri.fromFile(file));
sendBroadcast(intent);
}
private File getDisc(){
String t= getCurrentDateAndTime();
File file = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
return new File(file, "ImageDemo");
}
private String getCurrentDateAndTime() {
Calendar c = Calendar.getInstance();
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
String formattedDate = df.format(c.getTime());
return formattedDate;
public static Bitmap viewToBitmap(View view, int width, int height) {
Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
view.draw(canvas);
return bitmap;
}
Hope this helps!
I have a Bitmap image which I have to store in a folder in the SD Card, my code is shown below. It creates the folder and file as expected, but the image is not stored into the file, it remains an empty file... Can anyone tell me what's wrong?
Bitmap merged = Bitmap.createBitmap(mDragLayer.getChildAt(0).getWidth(), mDragLayer.getChildAt(0).getHeight(), Bitmap.Config.ARGB_8888);
Canvas c = new Canvas(merged);
// save to folder in sd card
try {
File imagesFolder = new File(Environment.getExternalStorageDirectory(), "folder");
if(!imagesFolder.exists())
imagesFolder.mkdirs();
int imageNum;
if(imagesFolder.list()==null)
imageNum = 1;
else
imageNum = imagesFolder.list().length + 1;
String fileName = "file_" + String.valueOf(imageNum) + ".jpg";
File output = new File(imagesFolder, fileName);
while(output.exists()){
imageNum++;
fileName = "file_" + String.valueOf(imageNum) + ".jpg";
output = new File(imagesFolder, fileName);
}
OutputStream fOut = new FileOutputStream(output);
merged.compress(Bitmap.CompressFormat.JPEG, 100, fOut);
fOut.flush();
fOut.close();
Toast.makeText(getApplicationContext(), "Saved", Toast.LENGTH_SHORT).show();
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
First add permission to AndroidManifest.xml
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
Then write down in Java File as below.
String extr = Environment.getExternalStorageDirectory().toString();
File mFolder = new File(extr + "/MyApp");
if (!mFolder.exists()) {
mFolder.mkdir();
}
String strF = mFolder.getAbsolutePath();
File mSubFolder = new File(strF + "/MyApp-SubFolder");
if (!mSubFolder.exists()) {
mSubFolder.mkdir();
}
String s = "myfile.png";
f = new File(mSubFolder.getAbsolutePath(),s);
UPDATED
String strMyImagePath = f.getAbsolutePath();
FileOutputStream fos = null;
try {
fos = new FileOutputStream(f);
bitmap.compress(Bitmap.CompressFormat.PNG,70, fos);
fos.flush();
fos.close();
// MediaStore.Images.Media.insertImage(getContentResolver(), b, "Screen", "screen");
}catch (FileNotFoundException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
Don't make it difficult with complex code its really very simple please Try below code.
Create first dir in your sd card :
public static String strpath = android.os.Environment.getExternalStorageDirectory().toString();
public static String dirName = "DIR_NAME";
File makeDirectory = new File(strpath+"/"+dirName);
makeDirectory.mkdir();
Then you should make two String Var like below :
String filename = "yourImageName".jpg";
String dirpath =strpath + "/"+dirName + "/";
Make File Variable :
File storagePath = new File(dirpath);
File myImage = new File(storagePath, filename);
outStream = new FileOutputStream(myImage);
outStream.write(data);
outStream.close();
Hope this may helpful to you.
you just need a bitmap
and you have to pass a path to store the image
Bitmap b = pagesView.getDrawingCache();
b.compress(CompressFormat.JPEG, 100, new FileOutputStream(Environment.getExternalStorageDirectory() + "/NameOfFile.jpg"));
and you have to add permission in Manifest file..
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />