Image, saved to sdcard, doesn't appear in Andr

Question

I save an image to the sdcard and it doesn't appear in the Gallery application until I pull off the sdcard and return it back.

Do you have any idea why is it so?

Seems like the Gallery application has some cache that isn't updated on file save...

Actually, I also want to open the just-saved image in Gallery application and have no success with that
this is my question about this issue.

Answer 1

A simpler solution is to use the static convenience method scanFile():

File imageFile = ...
MediaScannerConnection.scanFile(this, new String[] { imageFile.getPath() }, new String[] { "image/jpeg" }, null);

where this is your activity (or whatever context), the mime-type is only necessary if you are using non-standard file extensions and the null is for the optional callback (which we don't need for such a simple case).

Answer 2

Gallery refresh including Android KITKAT

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT)
{
        Intent mediaScanIntent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
        File f = new File("file://"+ Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES));
        Uri contentUri = Uri.fromFile(f);
        mediaScanIntent.setData(contentUri);
        this.sendBroadcast(mediaScanIntent);
}
else
{
        sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://" + Environment.getExternalStorageDirectory())));
}

Answer 3

Here is the code for the MediaScannerConnection:

MyMediaConnectorClient client = new MyMediaConnectorClient(newfile);
MediaScannerConnection scanner = new MediaScannerConnection(context, client);
client.setScanner(scanner);
scanner.connect();

newfile is the File object of your new/saved file.

Answer 4

Let your activity implement 'MediaScannerConnectionClient' and add this to your activity:

private void startScan() 
{ 
    if(conn!=null) conn.disconnect();  
    conn = new MediaScannerConnection(YourActivity.this,YourActivity.this); 
    conn.connect(); 
} 

@Override 
public void onMediaScannerConnected() { 
    try{
        conn.scanFile(yourImagePath, "image/*");
       } catch (java.lang.IllegalStateException e){
       }
}

@Override 
public void onScanCompleted(String path, Uri uri) { 
    conn.disconnect(); 
} 

Answer 5

sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://"+ Environment.getExternalStorageDirectory())));

Does not seem to work on KITKAT. It throws permission denial exception and crashes the app. So for this, I have done the following,

String path = mediaStorageDir.getPath() + File.separator
                    + "IMG_Some_name.jpg";
CameraActivity.this.sendBroadcast(new Intent(
                             Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri
                            .parse("file://" + path)));

Hope it helps.

Answer 6

this work with me

File file = ..... // Save file

context.sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.fromFile(file)));