I have a simple question.
It's possible to access to DCIM folder (internal storage) from an app and retrieve an image?
I've found solutions that use something like Enviroment.getExternalStoragePublicDirectory but I don't understand why.
Environment.getExternalStorageDirectory().toString()+ "/DCIM/Camera";
or
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM).getAbsolutePath()
Will give you a path for the public directory. This path is required to fetch all files including image. getExternalStorageDirectory() and Environment.getExternalStoragePublicDirectory() is public so you can access them from any installed app.
The following code snippet can be used to list all image file path from "DCIM" folder:
public static List<String> getCameraImages(Context context) {
public final String CAMERA_IMAGE_BUCKET_NAME = Environment.getExternalStorageDirectory().toString()+ "/DCIM/Camera";
public final String CAMERA_IMAGE_BUCKET_ID = String.valueOf(CAMERA_IMAGE_BUCKET_NAME.toLowerCase().hashCode());
final String[] projection = { MediaStore.Images.Media.DATA };
final String selection = MediaStore.Images.Media.BUCKET_ID + " = ?";
final String[] selectionArgs = { CAMERA_IMAGE_BUCKET_ID };
final Cursor cursor = context.getContentResolver().query(Images.Media.EXTERNAL_CONTENT_URI,
projection,
selection,
selectionArgs,
null);
ArrayList<String> result = new ArrayList<String>(cursor.getCount());
if (cursor.moveToFirst()) {
final int dataColumn =
cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
do {
final String data = cursor.getString(dataColumn);
result.add(data);
} while (cursor.moveToNext());
}
cursor.close();
return result;
}
Related
It is possible to recognize whether the file obtained using "Media file access" is stored on the SD card or in the Internal Memory ? For example, is it possible to find out the information from a media URI? In my opinion, it is only possible to find out the name of a subdirectory, but then it is no longer possible to find out the name of parent subdirectory.
Thanks, Michal
class Video {
private final Uri uri;
private final String name;
private final int duration;
private final int size;
public Video(Uri uri, String name, int duration, int size) {
this.uri = uri;
this.name = name;
this.duration = duration;
this.size = size;
}
}
List<Video> videoList = new ArrayList<Video>();
String[] projection = new String[] {
MediaStore.Video.Media._ID,
MediaStore.Video.Media.DISPLAY_NAME,
MediaStore.Video.Media.DURATION,
MediaStore.Video.Media.SIZE
};
String selection = MediaStore.Video.Media.DURATION +
" >= ?";
String[] selectionArgs = new String[] {
String.valueOf(TimeUnit.MILLISECONDS.convert(5, TimeUnit.MINUTES));
};
String sortOrder = MediaStore.Video.Media.DISPLAY_NAME + " ASC";
try (Cursor cursor = getApplicationContext().getContentResolver().query(
MediaStore.Video.Media.EXTERNAL_CONTENT_URI,
projection,
selection,
selectionArgs,
sortOrder
)) {
// Cache column indices.
int idColumn = cursor.getColumnIndexOrThrow(MediaStore.Video.Media._ID);
int nameColumn =
cursor.getColumnIndexOrThrow(MediaStore.Video.Media.DISPLAY_NAME);
int durationColumn =
cursor.getColumnIndexOrThrow(MediaStore.Video.Media.DURATION);
int sizeColumn = cursor.getColumnIndexOrThrow(MediaStore.Video.Media.SIZE);
while (cursor.moveToNext()) {
// Get values of columns for a given video.
long id = cursor.getLong(idColumn);
String name = cursor.getString(nameColumn);
int duration = cursor.getInt(durationColumn);
int size = cursor.getInt(sizeColumn);
Uri contentUri = ContentUris.withAppendedId(
MediaStore.Video.Media.EXTERNAL_CONTENT_URI, id);
// Stores column values and the contentUri in a local object
// that represents the media file.
videoList.add(new Video(contentUri, name, duration, size));
}
}
it is possible to somehow find out that the video is on the SD card or in the memory.
I am trying to make an android camera app with image gallery. The images captured are saved to a private directory: Android/data/com.example.newcamera/files/pictures.
Whenever I am using INTERNAL_CONTENT_URI or, EXTERNAL_CONTENT_URI as Uri, The app is bringing all the public pictures of my phone but not the one in the private directory. But I need only those with private directory. How can I get it? Please help me. My code snippet is as follows:
Thanks in advance.
protected String doInBackground(String... args) {
String xml = "";
String path = null;
String album = null;
String timestamp = null;
String countPhoto = null;
Uri uriInternal = MediaStore.Images.Media.INTERNAL_CONTENT_URI;
Uri uriExternal = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
Uri myUri = Uri.fromFile(new File(getApplicationContext().getFilesDir().getAbsolutePath()));
String[] projection = { MediaStore.MediaColumns.DATA,
MediaStore.Images.Media.BUCKET_DISPLAY_NAME, MediaStore.MediaColumns.DATE_MODIFIED };
Cursor cursorExternal = getContentResolver().query(uriExternal, projection, "_data IS NOT NULL) GROUP BY (bucket_display_name",
null, null);
Cursor cursorInternal = getContentResolver().query(uriInternal, projection, "_data IS NOT NULL) GROUP BY (bucket_display_name",
null, null);
Cursor myCursor = getContentResolver().query(myUri, projection, "_data IS NOT NULL) GROUP BY (bucket_display_name",
null, null);
Cursor cursor = new MergeCursor(new Cursor[]{cursorExternal, cursorInternal, myCursor});
while (cursor.moveToNext()) {
path = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.MediaColumns.DATA));
album = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Images.Media.BUCKET_DISPLAY_NAME));
timestamp = cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.MediaColumns.DATE_MODIFIED));
countPhoto = Function.getCount(getApplicationContext(), album);
albumList.add(Function.mappingInbox(album, path, timestamp, Function.converToTime(timestamp), countPhoto));
}
cursor.close();
Collections.sort(albumList, new MapComparator(Function.KEY_TIMESTAMP, "dsc")); // Arranging photo album by timestamp decending
return xml;
}
You can fetch your files from particular folder by:
File folder = new File(Environment.getExternalStorageDirectory().toString() + "/Folder Name/");
folder.mkdirs();
File[] allFiles = folder.listFiles(new FilenameFilter() {
public boolean accept(File dir, String name) {
return (name.endsWith(".jpg") || name.endsWith(".jpeg") || name.endsWith(".png"));
}
});
You can convert file path to Uri by Uri.fromFile(YOUR FILE)
I want to get the pictures which were taken by only device camera.
Maybe, filepath name have DCIM or other things.
Here is code, is this ok? target API is bitween 15~21API.
/**
* #param context
* #returnArrayList with images Path
*/
public static ArrayList<String> getAllShownImagesPath(Context context) {
Uri uri;
Cursor cursor;
int column_index_data, column_index_folder_name;
ArrayList<String> listOfAllImages = new ArrayList<String>();
String absolutePathOfImage = null;
uri = android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
final String DCIMPath = android.os.Environment.DIRECTORY_DCIM;
Log.d(TAG, "DCIMPath #"+DCIMPath);
String[] projection = { MediaStore.MediaColumns.DATA, MediaStore.Images.Media.BUCKET_DISPLAY_NAME };
cursor = context.getContentResolver().query(uri, projection, null, null, null);
column_index_data = cursor.getColumnIndexOrThrow(MediaStore.MediaColumns.DATA);
column_index_folder_name = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.BUCKET_DISPLAY_NAME);
while (cursor.moveToNext()) {
absolutePathOfImage = cursor.getString(column_index_data);
if(absolutePathOfImage.contains(DCIMPath))
listOfAllImages.add(absolutePathOfImage);
}
String filepath = Environment.getExternalStorageDirectory().toString();
Log.d(TAG, "filepath #" + filepath);
return listOfAllImages;
}
I only tests one device it worked. but android device is so many.
If you want to get the default pictures storage directory on your device, try :
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
Hi I am trying ot load images stored on the card and figured that its better to load the bitmaps, but I want to have both full path and thumbnail path. How do I do that? I would like my adapter to show me the list of thumbnails but when I click I need to redirect to a preview so I also need a full path. So if my object is Image, I need to have imagePath and imageThumbPath loaded at the same time.
Here is how I load them now:
new Image(data) where data is the path to the actual image. How do I load thumb path simultaneously into same object?
public static List<Image> getCameraImages(Context context) {
final String[] projection = { MediaStore.Images.Media.DATA };
final String selection = MediaStore.Images.Media.BUCKET_ID + " = ?";
final String[] selectionArgs = { CAMERA_IMAGE_BUCKET_ID };
final Cursor cursor = context.getContentResolver().query(Images.Media.EXTERNAL_CONTENT_URI,
projection,
selection,
selectionArgs,
null);
List<Image> result = new ArrayList<Image>(cursor.getCount());
if (cursor.moveToFirst()) {
final int dataColumn = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
do {
final String data = cursor.getString(dataColumn);
result.add(new Image(data));
} while (cursor.moveToNext());
}
cursor.close();
return result;
}
public static final String CAMERA_IMAGE_BUCKET_NAME =
Environment.getExternalStorageDirectory().toString()
+ "/DCIM/Camera";
public static final String CAMERA_IMAGE_BUCKET_ID = getBucketId(CAMERA_IMAGE_BUCKET_NAME);
public static String getBucketId(String path) {
return String.valueOf(path.toLowerCase().hashCode());
}
and I found how to do hat ONLY to find out that the thumbs are all same size as originals!!! Horrible!
How do you get a list of all camera images of an Android device?
Is it through the MediaStore? How?
The Gallery app obtains camera images by using a content resolver over Images.Media.EXTERNAL_CONTENT_URI and filtering the results by Media.BUCKET_ID. The bucket identifier is determined with the following code:
public static final String CAMERA_IMAGE_BUCKET_NAME =
Environment.getExternalStorageDirectory().toString()
+ "/DCIM/Camera";
public static final String CAMERA_IMAGE_BUCKET_ID =
getBucketId(CAMERA_IMAGE_BUCKET_NAME);
/**
* Matches code in MediaProvider.computeBucketValues. Should be a common
* function.
*/
public static String getBucketId(String path) {
return String.valueOf(path.toLowerCase().hashCode());
}
Based on that, here's a snippet to get all camera images:
public static List<String> getCameraImages(Context context) {
final String[] projection = { MediaStore.Images.Media.DATA };
final String selection = MediaStore.Images.Media.BUCKET_ID + " = ?";
final String[] selectionArgs = { CAMERA_IMAGE_BUCKET_ID };
final Cursor cursor = context.getContentResolver().query(Images.Media.EXTERNAL_CONTENT_URI,
projection,
selection,
selectionArgs,
null);
ArrayList<String> result = new ArrayList<String>(cursor.getCount());
if (cursor.moveToFirst()) {
final int dataColumn = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
do {
final String data = cursor.getString(dataColumn);
result.add(data);
} while (cursor.moveToNext());
}
cursor.close();
return result;
}
For more info, review the ImageManager and ImageList classes of the Gallery app source code.