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Can't display pictures in the gallery (Android 10+)

I'm currently having a problem with making my pictures contained in the app/files/Picture folder appear in the gallery with a device running Android 10. I created a folder in Picture called "ticket" (for sorting purposes) and I'm trying to display the entire folder in the gallery.
The following code works perfectly fine with a device running Android 9, but I just can't manage to make it work with the other device.
private void galleryAddPic() {
Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
File dir = new File(currentDirPath); // currentDirPath = /storage/emulated/0/Android/data/com.example.app_test_emasolar/files/Pictures/ticket
Uri contentUri = Uri.fromFile(dir);
mediaScanIntent.setData(contentUri);
this.sendBroadcast(mediaScanIntent);}
I also tried to add
android:requestLegacyExternalStorage="true"
to the manifest but nothing changed, I'm still stuck.
Any ideas?

How to open a file in external storage from an application? (Android)

I've added a button to my application which is supposed to open the download folder of the phone, and from there you should be able to click on files that were stored there, from the same app. Right now im saving some data there.
Problem is; I cant open the saved files in the folder.
I can see the files stored right there, but when I press one of them you immediatley go back to the app and not the file that you pressed.
Is there something I'm missing? Are you not supposed to open files stored in external storage from another app?
I've tried adding permissions in manifest and checkSelfpermission for checks in runtime, but with no success.
Here's the button for opening download folder:
private void openSavedLocation(){
if (ContextCompat.checkSelfPermission(ExportAndImport.this, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED)
{
ActivityCompat.requestPermissions(ExportAndImport.this, new String[] {Manifest.permission.READ_EXTERNAL_STORAGE}, 1);
}
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
Uri uri = Uri.parse(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS).getPath());
intent.setDataAndType(uri, "text/xml");
startActivity(Intent.createChooser(intent, "Open Folder"));}
I can open the file perfectly when Im opening it outside the app, not via this "createChooser". What could i be missing?
Any help is appreciated.

but when I press one of them you immediatley go back to the app and not the file that you pressed
That is what your code does. ACTION_GET_CONTENT says "let the user pick a piece of content". It does not say "open that piece of content in some other app". There is no single Intent action for saying "let the user pick a piece of content, then open that piece of content in some other app".
Is there something I'm missing?
If you want to try to open the XML in some other app:
Use startActivityForResult(), not startActivity(), for your ACTION_GET_CONTENT request (and get rid of the createChooser() bit)
Override onActivityResult() to get the result of the user's choice
If the user chose something (i.e., you get RESULT_OK in onActivityResult()), create an ACTION_VIEW Intent wrapped around the Uri that you get from the Intent passed into onActivityResult(), and call startActivity() on the ACTION_VIEW Intent
If, instead, your objective is to open this XML in your app, you would:
Use startActivityForResult(), not startActivity(), for your ACTION_GET_CONTENT request (and get rid of the createChooser() bit)
Override onActivityResult() to get the result of the user's choice
If the user chose something (i.e., you get RESULT_OK in onActivityResult()), get the Uri of the content from the Intent passed into onActivityResult(), then use ContentResolver to do something useful with that Uri (e.g., openInputStream() to read in the content)
Here's the button for opening download folder
ACTION_GET_CONTENT uses the MIME type. It will not necessarily honor your supplied starting Uri.

How to show Images on Gallery App on Xiaomi MIUI 8.1?

This is a problem I found exclusively on Xiaomi Redmi Note 4 device (MIUI Global 8.1, Marshmallow)
So I'm making an app that generates a bitmap and saves it to FOOD folder. I have successfully generated the image and saved it to FOOD folder.
However, some of the images don't show on Gallery App. Specifically Xiaomi's Gallery App and Google's Photos. Note that some images DO show on Gallery App.
My question are:
How to show the images in Gallery after saving the image?
What exactly is causing this problem?
This really confuses me since it works on other devices with different OS.
This is what I have tried so far:
I've tried using the Intent.ACTION_MEDIA_SCANNER_SCAN_FILE and MediaScannerConnection.scanFile.
try {
String fileName = imagePath.substring(imagePath.lastIndexOf("/") + 1);
MediaStore.Images.Media.insertImage(H5Environment.getContext().getContentResolver(), imagePath,
fileName, null);
} catch (Exception e) {
DanaLog.e(TAG, e);
}
Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
Uri contentUri = Uri.fromFile(new File(imagePath));
mediaScanIntent.setData(contentUri);
sendBroadcast(mediaScanIntent);
MediaScannerConnection.scanFile(this,
new String[]{imagePath},
new String[]{"image/png"},
new MediaScannerConnection.OnScanCompletedListener() {
#Override
public void onScanCompleted(String path, Uri uri) {
Log.d(TAG, "scan complete " + path);
}
});
I have also restarted the phone and it still doesn't show.
In Settings, I have enable Show hidden album but it doesn't show as well.
Current analysis:
I don't think there's a problem with the image itself because I can see it via File Manager.
The image path should also correct since some image is shown in the Gallery App.
Note:
I see a forum discussion on this and they suggest to 3rd party app such as Rescan SD Card!. But obviously, it was not the solution I was looking for.

try this for saveImage and notify Gallery
https://github.com/wuapnjie/StickerView/blob/master/sticker/src/main/java/com/xiaopo/flying/sticker/StickerUtils.java

Android Sharing Intent only works with Google Photos, Crashes Other Apps [duplicate]

This question already has answers here:
Android ACTION_SEND event: "messaging failed to upload attachment"
(2 answers)
Closed 5 years ago.
I am trying to create a Sharing Intent for an Android App to share images to other apps. However, I'm getting this really weird result when implementing this feature.
I have a share button that when I click on the button, it runs the following method:
private void shareIntent() {
Uri currUri = Uri.parse(data.get(pos).getUrl());
Intent sharingIntent = new Intent(Intent.ACTION_SEND);
sharingIntent.setAction(Intent.ACTION_SEND);
sharingIntent.putExtra(Intent.EXTRA_STREAM, currUri);
sharingIntent.setType("image/jpg");
startActivity(Intent.createChooser(sharingIntent, getResources().getText(R.string.share_to)));
}
data.get(pos).getUrl() returns the URL of a custom class I made that implements Parcelable, and when printing it out, it returns a directory like the following: "/storage/emulated/0/Pictures/primitive/Primitive-79538313.jpg"
The intent works at first, opening the sharing menu. However, when I click on most applications, it either crashes the application or it gives an error... except with Google Photos, which uploads the photo properly to the gallery.
Firstly, I'm wondering what I'm doing wrong to cause this issue in the other apps. Also, I'd like to know if someone has an explanation as to why only Google Photos allows the sharing feature to work, while many of the other apps I've tested do not.
For reference, here are some examples I've run with the sharing intent. When I try to share the image, it crashes Hangouts. It gives a "failed to load image" error message in Snapchat, "Unable to share file" in Slack and Gmail, "Upload was unsuccessful" in Drive, "Messenger was unable to process the file" in, well, Messenger, and "Couldn't load image" in GroupMe. It doesn't load the image in Facebook but doesn't crash nor give an error.
Thank you for any help or feedback you can provide!
EDIT:
This seemed to work without trying to get around App Permissions:
private void shareIntent() {
File imageFile = new File(data.get(pos).getUrl());
Uri uriToImage = FileProvider.getUriForFile(
this, BuildConfig.APPLICATION_ID + ".provider", imageFile);
Intent shareIntent = ShareCompat.IntentBuilder.from(DetailActivity.this)
.setStream(uriToImage)
.getIntent();
shareIntent.setData(uriToImage);
shareIntent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
shareIntent.setType("image/jpeg");
startActivity(Intent.createChooser(shareIntent, "Share image"));
}
Thank you to everyone that responded!

Change your code to this
private void shareIntent() {
Intent shareIntent = new Intent(Intent.ACTION_SEND);
shareIntent.setType("image/jepg");
shareIntent.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://"+data.get(pos).getUrl()));
startActivity(Intent.createChooser(shareIntent, "Share image"));
}
Add this code in your activity onCreate()
StrictMode.VmPolicy.Builder builder = new StrictMode.VmPolicy.Builder();
StrictMode.setVmPolicy(builder.build());

Android Take Photo and Save to Variable

I would like to allow the user to take a photo, and when finished, have it passed directly into a variable (Bitmap preferably) instead of saved to memory. I've tried using the default android camera intent but cannot seem to stop it from saving to memory and showing up in the gallery.
Any suggestions?
What I have so far is this:
Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
if (takePictureIntent.resolveActivity(getPackageManager()) != null) {
startActivityForResult(takePictureIntent, 1);
}
But this saves the picture in the gallery. I would like to get the image without saving it in the gallery.

Here's a nice example given at official android developer site: http://developer.android.com/training/camera/photobasics.html
Hope this would be helpful.