Develop Reference

The saved video is not shown in the system gallery app

After creating video and save it, I'm trying to make it visible in the gallery app by scanning the video path using the code below :
Path of saved video :
public String getPath() {
String videoFileName = System.currentTimeMillis() + ".mp4";
File storageDir = new File(
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES)
+ "/MyFolderApp");
boolean success = true;
if (!storageDir.exists()) {
success = storageDir.mkdirs();
}
if (success) {
File videoFile = new File(storageDir, videoFileName);
savedVideoPath = videoFile.getAbsolutePath();
}
return savedVideoPath;
}
Scan path :
private void galleryScanner(String path) {
Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
File f = new File(path);
Uri contentUri = Uri.fromFile(f);
mediaScanIntent.setData(contentUri);
sendBroadcast(mediaScanIntent);
}
After saving the video, I call the scan method like this: galleryAddPic(getPath());
Weird behavior : If I open the Google Photos app and go to Album > MyFolderApp, I could see the saved video there, also when I exit the Google Photos app and return to Gallery System, the saved video shown normally

Capture then Save the Image to Gallery not working Sometimes

I have a method to start the camera and take a photo (working with API 24 and Higher) :
public void invokeCamera()
{
// create the image Uri
Uri pictureUri = FileProvider.getUriForFile(getContext(),getContext().getPackageName() + ".provider",createImageFile());
Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
// tell the camera where to save
intent.putExtra(MediaStore.EXTRA_OUTPUT,pictureUri);
// permission for saving the image
intent.setFlags(Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
startActivityForResult(intent,CAPTURE_REQ_CODE);
}
creating the image File:
private File createImageFile() {
File picturesDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);
String imgName = "myImageName_0X0Y02_test.jpg";
return new File(picturesDirectory.getPath(),"picture" + imgName );
}
the problem is :
this code is working without errors but sometimes i can't see the image in the Gallery , sometimes when i open the gallery after about 10 mins i see it there ! this is weird and i'm confused , am i missing something ?
All permissions are granted (Camera and full access to Storage)

Since you work with API 24 and higher, I will provide the code for it only. Basically, you need to tell the media scanner that a file was added so it can scan and add it straight away:
public static void scanMediaForChanges(Context context, File file){
MediaScannerConnection.scanFile(context,
new String[]{file.toString()}, null,
new MediaScannerConnection.OnScanCompletedListener() {
public void onScanCompleted(String path, Uri uri) {
Log.i("ExternalStorage", "Scanned " + path + ":");
Log.i("ExternalStorage", "-> uri=" + uri);
}
});
}

You are number #### with this problem. You should tell the media store about your new file.
To do that invoke the media scanner for your file.
Code has been posted a ### times. So google.

Image not showing up in gallery

My app is able to take a photo and stores it into a specified folder.
Using ES File explorer, I'm able to confirm that the image has been stored in sd card and the specified folder.
However, my gallery is not showing this album immediately. It will need to take quite some time. Is there any ways that i can make the detection immediate using codes?
The following broadcasting codes did not seem to work. My gallery doesnt immediately do a refresh to retrieve the newly created album and image.
Kindly assist. Thanks!
if (type == MEDIA_TYPE_IMAGE){
mediaFile = new File(mediaStorageDir.getPath() + File.separator +
"IMG_"+ timeStamp + ".png");
Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
Uri contentUri = Uri.fromFile(mediaFile);
mediaScanIntent.setData(contentUri);
v.getContext().sendBroadcast(mediaScanIntent);
}

It might take some time till it finished the scanning.
If you wish, you can at least be notified when it finished:
MediaScannerConnection.scanFile(
getApplicationContext(),
new String[]{file.getAbsolutePath()},
null,
new OnScanCompletedListener() {
#Override
public void onScanCompleted(String path, Uri uri) {
// file was scanned
}
});
for more information read here.

Android Camera no save in specific folder [MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA]

I'm a problem when I using the MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA in the Intent. The camera starts correctly but it doesn't save the files in my specific folder "/photo". But when I use the MediaStore.ACTION_IMAGE_CAPTURE it works fine, but I can't use this because it take only one photo each time.
I need the camera starts and the user takes many photos. After he closes the camera and all photos are saved in my specific folder.
Thanks for your help.
Regards,
Marcelo
Source code:
public void startCamera() {
Intent takePictureIntent = new Intent(MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA);
File file = null;
try {
file = createImageFile();
takePictureIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(file));
} catch (IOException e) {
file = null;
Log.e(this.getClass().getName(), e.getMessage(), e);
}
activity.startActivity(takePictureIntent);
}
private File createImageFile() throws IOException {
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = JPEG_FILE_PREFIX + timeStamp + JPEG_FILE_SUFFIX;
return new File(Environment.getExternalStorageDirectory().getAbsolutePath() + "/photo/", imageFileName);
}

MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA This intent does not support activity results or specific intent file outputs. This intent is designed to simply open the camera. The functionality you seek does not exist natively in Android.

Create a custom album in the Android Gallery App

I want create a new 'album' in Android. I unserstood that you have to do it with your own ContentProvider. But i can't figure out how. If you take pictures, all the images appear in the album 'Camera'. If you have installed Google+ you'll see 2 extra albums: Instant Upload & Profile Picture.
We want to create something similar. We have an album per user online and we want that it appears as an album item in the Gallery app. Can someone point me in the right direction.
I already checked: http://developer.android.com/guide/topics/providers/content-providers.html
Actually im not really sure if it is possible.

You can use this way to create album in Gallery app. The name appears as 'app images'.
String path = Environment.getExternalStorageDirectory().toString();
File dir = new File(path, "/appname/media/app images/");
if (!dir.isDirectory()) {
dir.mkdirs();
}
File file = new File(dir, filename + ".jpg");
String imagePath = file.getAbsolutePath();
//scan the image so show up in album
MediaScannerConnection.scanFile(this,
new String[] { imagePath }, null,
new MediaScannerConnection.OnScanCompletedListener() {
public void onScanCompleted(String path, Uri uri) {
if(Config.LOG_DEBUG_ENABLED) {
Log.d(Config.LOGTAG, "scanned : " + path);
}
}
});