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 :-)
Related
I have an application that removes the image background and set a new blue background colour and save it but when I open an image it shows black background.
How I can save this with a blue background ?.
imageView.setBackgroundColor(ContextCompat.getColor(this, R.color.blue));
BitmapDrawable draw = (BitmapDrawable) imageView.getDrawable();
BitmapDrawable draw = (BitmapDrawable) imageView.getDrawable();
Bitmap bitmap = draw.getBitmap();
FileOutputStream outStream = null;
File file = Environment.getExternalStorageDirectory();
File dir = new File(file.getAbsolutePath() + "/Passport Photo123");
dir.mkdirs();
String fileName = String.format("%d.jpg", System.currentTimeMillis());
File outFile = new File(dir, fileName);
try {
outStream = new FileOutputStream(outFile);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, outStream);
try {
outStream.flush();
outStream.close();
Toast.makeText(this, "Photo Saved at: " + outFile, Toast.LENGTH_SHORT).show();
} catch (IOException e) {
e.printStackTrace();
}
Try this line of code :-
imageView.setBackgroundColor(Color.rgb(100, 100, 50));
If it not works than the problem must be elsewhere.
How to write image in phone directory. Directory is created but i could not write image in this folder. Here is my code .please check if i am doing something wrong thanks in advance.
Bitmap bitmap;
String directory = new_path; // I am getting path here of image like sdcard/0/emulated/image.jpg
String folder_name = "abc"
bitmap = BitmapFactory.decodeFile(directory);
iv_6.setImageBitmap(bitmap); // image displayed here but not saving in directory.
try {
File f = new File(Environment.getExternalStorageDirectory()
+ File.separator +folder_name);
f.mkdirs();
FileOutputStream fo = new FileOutputStream(f);
bitmap.compress(Bitmap.CompressFormat.JPEG, 40, fo);
fo.close();
}catch (Exception e)
{
e.printStackTrace();
}
public void savePng(Bitmap bitmap, String filePath) {
try {
File temp = new File(filePath);
FileOutputStream os = new FileOutputStream(temp + ".png");
bitmap.compress(Bitmap.CompressFormat.PNG, 50, os);
os.flush();
os.close();
} catch (Exception e) {
e.printStackTrace();
}
}
I created a bitmap with text and I can view it in an Imageview, but when I save the Bitmap I only get a black image. I have spend three hours looking at similar questions but none of the worked for me. Here is the code.
Thanks for any help.
public void createBitmap(){
Bitmap LabelBitmap;
FileOutputStream fos = null;
//create Text Bitmap
LabelBitmap = textAsBitmap(this,"BRO D 0813","fonts/arialbd.ttf", 4, Color.BLACK);
//load bitmap in to Imageview
ImageView myImageView = (ImageView) findViewById(R.id.imageView);
myImageView.setImageBitmap(LabelBitmap);
// save bitmap
String root = Environment.getExternalStorageDirectory().toString();
File myDir = new File(root + "/myfolder");
myDir.mkdirs();
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
LabelBitmap.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
if (!myDir.exists()) {
myDir.mkdir();
}
File myDirFile = new File(root +"/myfolder/mybitmap.jpg");
try {
if(myDirFile.exists()){
myDirFile.delete();
}
myDirFile.createNewFile();
} catch (IOException e) {
e.printStackTrace();
}
try {
fos = new FileOutputStream(myDirFile);
} catch (FileNotFoundException e) {
e.printStackTrace();
}
try {
fos.write(bytes.toByteArray());
fos.flush();
fos.close();
Toast.makeText(this, "Image saved", Toast.LENGTH_SHORT).show();
} catch (IOException e) {
e.printStackTrace();
}
}
JPEG Image has a black background by default, so if your text color is also black you will get a black image. If your image has no background color, you must save it as PNG. Change as following and have a try:
LabelBitmap.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
to:
LabelBitmap.compress(Bitmap.CompressFormat.PNG, 100, bytes);
testButton.setOnClickListener(new Button.OnClickListener(){
#Override
public void onClick(View v)
{
imageView.setImageBitmap(Bitmap);
imageView.buildDrawingCache();
Bitmap bm =imageView.getDrawingCache();
Intent imageIntent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
File imagesFolder = new File(Environment.getExternalStorageDirectory(), "Punch");
imagesFolder.mkdirs();
String fileName = "image" + ".jpg";
File output = new File(imagesFolder, fileName);
Uri uriSavedImage = Uri.fromFile(output);
imageIntent.putExtra(MediaStore.EXTRA_OUTPUT, uriSavedImage);
OutputStream fos = null;
try {
fos = getContentResolver().openOutputStream(uriSavedImage);
bm.compress(CompressFormat.JPEG, 100, fos);
fos.flush();
fos.close();
}
catch (FileNotFoundException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
finally
{}
}
});
First i retrieved an image from sd card to image view of resolution (640 x 480). Then again i saved the image from image view to sd card. But the image saved is of resolution is (188x113). Can anyone suggest how i can save with the same resolution. Any suggestions will be appreciable.
Try this code :
BitmapDrawable btmpDr = (BitmapDrawable) ivPic.getDrawable();
Bitmap bmp = btmpDr.getBitmap();
/*File sdCardDirectory = Environment.getExternalStorageDirectory();*/
try
{
File sdCardDirectory = new File(Environment.getExternalStorageDirectory() + File.separator + "MeeguImages");
sdCardDirectory.mkdirs();
imageNameForSDCard = "image_" + String.valueOf(random.nextInt(1000)) + System.currentTimeMillis() + ".jpg";
File image = new File(sdCardDirectory, imageNameForSDCard);
FileOutputStream outStream;
outStream = new FileOutputStream(image);
bmp.compress(Bitmap.CompressFormat.JPEG, 100, outStream);
/* 100 to keep full quality of the image */
outStream.flush();
outStream.close();
//Refreshing SD card
sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://"+ Environment.getExternalStorageDirectory())));
}
catch (Exception e)
{
e.printStackTrace();
Toast.makeText(ViewImage.this, "Image could not be saved : Please ensure you have SD card installed " +
"properly", Toast.LENGTH_LONG).show();
}
bm.compress(CompressFormat.JPEG, 100, fos);
remove this line
Solved, This is how i achieved to save image from ImageView
/*Variable which holds Image*/
{ImageView ivBanner = "Initialise It :)";
FileOutputStream fileOutputStream = openFileOutput("ImageName" + ".jpg", MODE_PRIVATE);
Bitmap bitmap = convertToBitMap(ivBanner.getDrawable(),ivBanner.getWidth(),ivBanner.getHeight());
bitmap.compress(Bitmap.CompressFormat.JPEG, 85, fileOutputStream);
File file = getFileStreamPath("ImageName" + ".jpg");
File f = file.getAbsoluteFile();
/*Utilise your path whatever way you want*/
String localPath = f.getAbsolutePath();}
/* Covert Drawable to Bitmap*/
private Bitmap convertToBitMap(Drawable drawable, int width, int height) {
Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
drawable.setBounds(0,0,width,height);
drawable.draw(canvas);
return bitmap;
}
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!