Image is saved twice - android

I am using the following intent:
Intent i = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
i.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, uri);
Basically i am using ACTION_IMAGE_CAPTURE intent to invoke the camera and save the taken image into the specified uri.
It works but at the same time the image is also saved with the default name.
Thus once i have snapped the picture, it is saved twice, both in the uri and in the default path and name.
How do i ensure that it is only saved in the specified uri?
Thanks In Advance,
Perumal

You can take the ID or Absolute path of the gallery last image. And delete it.
It can be done like that:
/**
* Gets the last image id from the media store
* #return
*/
private int getLastImageId(){
final String[] imageColumns = { MediaStore.Images.Media._ID, MediaStore.Images.Media.DATA };
final String imageOrderBy = MediaStore.Images.Media._ID+" DESC";
Cursor imageCursor = managedQuery(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, imageColumns, null, null, imageOrderBy);
if(imageCursor.moveToFirst()){
int id = imageCursor.getInt(imageCursor.getColumnIndex(MediaStore.Images.Media._ID));
String fullPath = imageCursor.getString(imageCursor.getColumnIndex(MediaStore.Images.Media.DATA));
Log.d(TAG, "getLastImageId::id " + id);
Log.d(TAG, "getLastImageId::path " + fullPath);
imageCursor.close();
return id;
}else{
return 0;
}
}
And to remove the file:
private void removeImage(int id) {
ContentResolver cr = getContentResolver();
cr.delete(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, MediaStore.Images.Media._ID + "=?", new String[]{ Long.toString(id) } );
}
This code was based on the post: Deleting a gallery image after camera intent photo taken

Related

How share images/videos in custom folders using ContentResolver/ or other way in Android ? Getting FileUriExposedException Exception

I have a custom folder in the Pictures directory, like this Pictures/MyFolder. It has images in MyFolder. Here is how to share the images using ContentResolver on MyFolder only. Or is any alternative ways to share the image. It is on android 11.
I queried images using the following snippets
String[] projection = new String[]{
MediaStore.Images.Media.DATA,
MediaStore.Images.Media._ID,
MediaStore.Images.Media.BUCKET_DISPLAY_NAME,
MediaStore.Images.Media.DATE_TAKEN};
Uri images = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
final String orderBy = MediaStore.Images.Media.DATE_TAKEN;
Cursor cur = context.getContentResolver().query(images,
projection, // Which
// columns
// to return
null, // Which rows to return (all rows)
null, // Selection arguments (none)
orderBy + " DESC" // Ordering
);
int bucketColumn = cur.getColumnIndex(MediaStore.Images.Media.BUCKET_DISPLAY_NAME);
int dateColumn = cur.getColumnIndex(MediaStore.Images.Media.DATE_TAKEN);
do {
bucket = cur.getString(bucketColumn);
if (bucket.equals(context.getString(R.string.app_name))) {
date = cur.getString(dateColumn);
imagePath = listImageByFolder.get(bucket);
if (imagePath == null) {
imagePath = new ArrayList<String>();
}
imagePath.add(cur.getString(cur.getColumnIndex(MediaStore.Images.Media.DATA)));
Uri x = Uri.withAppendedPath(MediaStore.Images.Media.INTERNAL_CONTENT_URI, String.valueOf(cur.getString(cur.getColumnIndex(MediaStore.Images.Media.DATA))));
listImageByFolder.put(bucket, imagePath);
} ;
} while (cur.moveToNext());
While I try to share the image, Getting android.os.FileUriExposedException: file:///storage/emulated/0/Pictures/WhatsTouch/1628090801008.jpg exposed beyond app through ClipData.Item.getUri() exception. Is any way to correct it or is any alternative way?

How to update() an image in MediaStore

To query the MediaStore, I simply create an URI with the proper "base URI" and append the IMAGE_ID (which I have from the corresponding thumbnail). Then, I simply invoke the content resolver to get a cursor:
Long IMAGE_ID = 172712; // let's say we have this IMAGE_ID
Uri baseUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
baseUri = Uri.withAppendedPath(baseUri, ""+ IMAGE_ID);
// let's just get this one field, description
String[] projection = {MediaStore.Images.Media.DESCRIPTION};
Cursor c = getContext().getContentResolver().query(baseUri, projection, null, null, null);
if (!c.moveToFirst()) return -1;
String description = c.getString(0); // and we're done :-)
However, what if I want to set the MediaStore.Images.Media.DESCRIPTION field? Can I, somehow, invoke the update method?
Long IMAGE_ID = 172712; // same image...
Uri baseUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
baseUri = Uri.withAppendedPath(baseUri, ""+ IMAGE_ID);
// create an object with the value to set
ContentValues test_values = new ContentValues();
test_values.put(MediaStore.Images.Media.DESCRIPTION, "Some image text...");
// i.e., SQL like: UPDATE MEDIASTORE SET DESCRIPTION = "Some image text..." WHERE IMAGE_ID = 172712;
String sIMAGE_ID = "" + IMAGE_ID;
int res = getContext().getContentResolver().update(baseUri, test_values, MediaStore.Images.Media._ID + "= ?", new String[]{sIMAGE_ID }); // works fine!
The above code works fine (at least in the emulator, Nexus 7 device)! update sets the DESCRIPTION "field".

Media Gallery ContentProvider

My app will display the complete list of images in my custom gallery .For this, I'm using ContentProvider of Image Thumbnails. Upon selecting the thumbnail's I need to display the actual image.According to my understanding Gallery's image do have same unique ID in Thumb and Media Table.
Here is the code. Firstly I queried Thumbnail's ContentProvider and saved URL and ID.
String pictureThumbTemp[] = { MediaStore.Images.Thumbnails._ID, MediaStore.Images.Thumbnails.DATA };
Cursor imagecursor = context.getContentResolver().query (MediaStore.Images.Thumbnails.EXTERNAL_CONTENT_URI,
pictureThumbTemp,null, null, null);
Later I am displaying thumbs in Grid.
Upon selection of thumbnail, I have to display original image. I'm trying to retrieve the original image like
String pictureImageTemp[] = { MediaStore.Images.Media._ID, MediaStore.Images.Media.DATA };
Cursor imagecursor = context.getContentResolver().query( MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
pictureImageTemp, MediaStore.Images.Media._ID + " = " + mediaID + "", null,
MediaStore.Images.Media._ID);
Overall, I'm showing thumbnail through it's url and upon click I'm querying the thumbnail's media ID in Original image table.
But it is returning a cursor with 0 results.
Please help me out.
Thanks,
sha.
I cracked out a way which worked out.
Retrieved the cursor for Original Images.
From that I pulled the ID for every image and Queried the Thumbnails for the ID which returns a cursor containing paths.
Find the code snippet below.
String pictureCols[] = { MediaStore.Images.Media._ID, MediaStore.Images.Media.DATA };
Cursor imagecursor = mContext.getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, pictureCols,
null, null, null);
imagecursor.moveToFirst();
mImageUrls = new ArrayList<String>();
try {
// Iterate the cursor for Image urls
for (int index = 0; index < imagecursor.getCount(); index++) {
imagecursor.moveToPosition(index);
preparePicture(imagecursor);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
imagecursor.close();
}
}
Here is the code for preparePicture method
private void preparePicture(Cursor imageCursor) {
// get the ID for the original image
int idColumnIndex = imageCursor.getColumnIndex(mSelectedImage.mediaID);
Long id = imageCursor.getLong(idColumnIndex);
// Thumbnail image Cursor for this specific image.
String thumbCols[] = { MediaStore.Images.Thumbnails._ID, MediaStore.Images.Thumbnails.DATA };
Cursor thumbCursor = MediaStore.Images.Thumbnails.queryMiniThumbnail(mContext.getContentResolver(), id,
Thumbnails.MINI_KIND, thumbCols);
thumbCursor.moveToFirst();
// Save thumbnail URL in MediaInfo
dataColumnIndex = thumbCursor.getColumnIndex(mSelectedThumb.data);
String thumbURL = thumbCursor.getString(dataColumnIndex);
thumbCursor.close();
mImageUrls.add(url);
}
Finally, I will have all my Thumbnail urls in the ArrayList.
The same logic is not working for video thumbnails. Of course that is a different question :)
Regards,
Sha.
try this one
final String[] pictureImageTemp= { MediaStore.Images.Media.DATA, MediaStore.Images.Media._ID };
Cursor imagecursor = managedQuery(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI, pictureImageTemp, null,
null, MediaStore.Images.Media._ID);

How to get last taken picture Uri [duplicate]

hey I want to get the last picture captured by user through any camera application.
I have no idea how to do that
can any one help me?
further I want to send that image as an attachment to an email or MMS..
thanks
// Find the last picture
String[] projection = new String[]{
MediaStore.Images.ImageColumns._ID,
MediaStore.Images.ImageColumns.DATA,
MediaStore.Images.ImageColumns.BUCKET_DISPLAY_NAME,
MediaStore.Images.ImageColumns.DATE_TAKEN,
MediaStore.Images.ImageColumns.MIME_TYPE
};
final Cursor cursor = getContext().getContentResolver()
.query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, projection, null,
null, MediaStore.Images.ImageColumns.DATE_TAKEN + " DESC");
// Put it in the image view
if (cursor.moveToFirst()) {
final ImageView imageView = (ImageView) findViewById(R.id.pictureView);
String imageLocation = cursor.getString(1);
File imageFile = new File(imageLocation);
if (imageFile.exists()) { // TODO: is there a better way to do this?
Bitmap bm = BitmapFactory.decodeFile(imageLocation);
imageView.setImageBitmap(bm);
}
}
I'm still working on the MMS sending part.
Inspired by https://stackoverflow.com/a/20065920/763459
So the main concern in that answer was not all the devices are using "DCIM" as the camera folder. Then I found out that if a file is located inside a app-specified folder, it will be indexed by ContentResolver but the other app doesn't have access to it, which means canRead=false. So here I come up with another solution:
while (cursor.moveToNext()) {
String imagePath = cursor.getString(cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA));
File imageFile = new File(imagePath);
if (imageFile.canRead() && imageFile.exists()) {
// we have found the latest picture in the public folder, do whatever you want
break;
}
}
Here it is in Kotlin. I have used Glide library to load the last image into an imageview
private fun getLastImageFromGallery(){
val uriExternal: Uri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI
val projection = arrayOf(
MediaStore.Images.ImageColumns._ID,
MediaStore.Images.Media._ID,
MediaStore.Images.ImageColumns.DATE_ADDED,
MediaStore.Images.ImageColumns.MIME_TYPE
)
val cursor: Cursor = applicationContext.contentResolver.query(uriExternal, projection, null,
null, MediaStore.Images.ImageColumns.DATE_ADDED + " DESC"
)!!
Log.i("Cursor Last", cursor.moveToLast().toString())
if (cursor.moveToFirst()) {
val columnIndexID = cursor.getColumnIndexOrThrow(MediaStore.Images.Media._ID)
val imageId: Long = cursor.getLong(columnIndexID)
val imageURI = Uri.withAppendedPath(uriExternal, "" + imageId)
Glide.with(applicationContext)
.load(imageURI)
.transform(CenterCrop(), RoundedCorners(12))
.into(imageView)
}
cursor.close()
}

Converting file:// scheme to content:// scheme

I am running to the problem with using Droid X's Files app and Astro file manager to select an image file. This two apps return the selected image with the scheme "file://" while Gallery returns the image with the scheme "content://". How do I convert the first schema to the second. Or how do I decode the image with the second format?
You probably want to convert content:// to file://
For gallery images, try something like this:
Uri myFileUri;
Cursor cursor = context.getContentResolver().query(uri,new String[]{android.provider.MediaStore.Images.ImageColumns.DATA}, null, null, null);
if(cursor.moveToFirst())
{
myFileUri = Uri.parse(cursor.getString(0)).getPath();
}
cursor.close
Here, the problem is that, for all files we can't have a content Uri (content://). Because content uri is for those files which are part of MediaStore. Eg: images, audio & video.
However, for supported files, we can find its absolute path. Like for images as follows-
File myimageFile = new File(path);
Uri content_uri=getImageContentUri(this,myimageFile);
The generic method is as follows.
public static Uri getImageContentUri(Context context, File imageFile) {
String filePath = imageFile.getAbsolutePath();
Cursor cursor = context.getContentResolver().query(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
new String[] { MediaStore.Images.Media._ID },
MediaStore.Images.Media.DATA + "=? ",
new String[] { filePath }, null);
if (cursor != null && cursor.moveToFirst()) {
int id = cursor.getInt(cursor
.getColumnIndex(MediaStore.MediaColumns._ID));
Uri baseUri = Uri.parse("content://media/external/images/media");
return Uri.withAppendedPath(baseUri, "" + id);
} else {
if (imageFile.exists()) {
ContentValues values = new ContentValues();
values.put(MediaStore.Images.Media.DATA, filePath);
return context.getContentResolver().insert(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
} else {
return null;
}
}}
Use ContentResolver.openInputStream() or related methods to access the byte stream. You shouldn't generally be worrying about whether it is a file: or content: URI.
http://developer.android.com/reference/android/content/ContentResolver.html#openInputStream(android.net.Uri)

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