Whats the best way to manage 100s of thumbnails?

I'm trying to build a simple photo management app in java, like Picasa2. I want to be able to scroll through 100s of thumbnails. Whats the best way to manage them from a memory standpoint?
a) can I load up 100s of thumbnails into a JScrollPane? If so, will it do anything special to manage memory for the thumbnails that are offscreen?
b) should I just draw up a grid of JLabels and page through them like you would in html?
Is there another approach? Is there any special way to manage the thumbnails that are offscreen (besides loading them all in memory ) and still get a fast response time?
BTW, if anyone wants to join me in this project, I'm happy to opensource and share.

Because for some of us, it takes a lot longer than 5 mins. Besides, I was on someone else's computer.
Regardless, I've implemented JList for images, and it works really well. For those of you who are following in my footsteps, the answer is:
JList renders ImageIcons by default.
If you want to render a JLabel with an ImageIcon set to an image, you need to write a custom ListCellRenderer, but it turns out that is not too hard. But here is a follow-up problem:
My app has JLabels that subscribe to an ImageLoader that loads images in the background. On init() the JLabel just has the ImageIcon set to a placeholder image:
          myJLabel.imgIcon = new ImageIcon();
          myJLabel.imgIcon.setImage( myPlaceholderImage );
However, once the actual image is loaded, I call a refresh method to set the ImageIcon to a new image:
          myJLabel.imgIcon.setImage( myLoadedBufferedImage );
My problem is getting the JList to render the updated JLabel. Right now, I keep a reference to the JList with myJLabel and call revalidate() on refresh, but that doesn't seem very clean.
Is there an easy/natural place to get the JList to revalidate()?
Can I easily know which JLabels are in the viewport of the JList scrollpane? That way I could revalidate only the visible JLabels or when scrolling.

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Whats the best way to manage/display images ?

I'm building a yet another photo management application that is designed to be a Picasa2 "lite". I've got a lot of JPGs I need to manage, all of which are loaded asynchronously and cached over the web.
The same image may appear in multiple places, (i.e. thumbnail, fullsize, original with a zoom box, etc.) I'm having problems keeping all these images in synch when I change the underlying image -- right now I have to create all new JLabels for everything and add them to their respective Panels again. But that doesn't seem like its the best way.
Here's my JLabel sub-class:
public class ImageLocatorSubscriber extends JLabel {
     public final ImageDimEnum maxDimEnum;
     final ImageIcon imgIcon = new ImageIcon();
     BufferedImage bi;
     ImageLocator il;
     public ImageLocatorSubscriber(ImageLocator il, ImageDimEnum d) {
          super();
          this.maxDimEnum = d;
          this.imgIcon = new ImageIcon();
          if (il != null) {
               this.il = il;
                        this.bi = il.getBi(RunMode.NOWAIT);
                  if (bi.getWidth()!=maxDimEnum.dim.getWidth() || bi.getHeight()!=maxDimEnum.dim.getHeight()) {
                       bi = FotoFix.resize(bi, maxDimEnum.dim);
                  this.bi = bi;
                  this.imgIcon.setImage(this.bi);
                  this.setSize(bi.getWidth(), bi.getHeight());
          this.setIcon(this.imgIcon);
          this.setBorder(Constants.borderGray);
     }Is the preferred method for changing the image displayed in a JLabel
a) create a new ImageIcon and use (JLabel) this.setIcon()
b) reuse the existing ImageIcon and use (JLabel) this.imgIcon.setImage();
c) remove the old JLabel from the panel, create a new JLabel, and add that to the panel?
I can only get c) to work. When I try to use b) some of the images are not updated properly, even as I have declared this.imgIcon as final. Any ideas, or should I just leave it be?

override this method in any JComponent subclass
http://java.sun.com/javase/6/docs/api/javax/swing/JComponent.html#paintComponent(java.awt.Graphics)

What is the best way to manage my iPhoto, which is taking up too much space on my MacBook Pro?

What is the best way to manage my iPhoto, which is taking up too much space on my MacBook Pro?
Specifically, I'd like to keep some of my favorite pictures on the laptop while moving the rest to an external hard drive. Is there a way to tag just a few pictures inside an event/album as "favorite", while storing the rest in an EHD, but still keep them connected to the same event/album? I'd like to have just the favorite pictures on the laptop, but when I have the EHD connected, be able to view all my pictures in the same place, and not have to browse through separate hard drives. Ideally, whether or not a picture is designated as "favorite" will determine where it resides.
Is this at all possible?
I have only 7 GB left on my HD and I'm desperately needing a solution!
Thanks!

You need two libraries to do this. One on the external with all your Photos. One on the internal with a subset - your favourites. You do it this way to make backing up easier - that is, back up the library with everything, so you're only backing up one.
Make sure the drive is formatted Mac OS Extended (Journaled)
1. Quit iPhoto
2. Copy the iPhoto Library from your Pictures Folder to the External Disk.
Now you have two full versions of the Library.
3. On the Internal library, trash the Events/albums/photos you don't want there
Now you have a full copy of the Library on the External and a smaller subset on the Internal
Some Notes:
As a general rule: when deleting photos do them in batches of about 100 at a time. iPhoto can baulk at trashing large numbers at one go.
You can choose which Library to open: Hold down the option (or alt) key key and launch iPhoto. From the resulting menu select 'Choose Library'
You can keep the Library on the external updated with new imports using iPhoto Library Manager

My business has 100 ipads 3g with no control at the moment - i need to now control the ipads - what apps they can use - and restict certian use on the ipads - whats the best way to do this - it will need to be done remotley.

my business has 100 ipads 3g with no control at the moment - i need to now control the ipads - what apps they can use - and restict certian use on the ipads - whats the best way to do this - it will need to be done remotley.

MDM -- moble device management
MDMs
Airwatch, Meraki, MobileIron, Profile Manager on OS X Server, or Zenprise
For a comparison see this page:
http://www.enterpriseios.com/wiki/Comparison_MDM_Providers
Airwatch
http://www.air-watch.com/
Meraki -- A free MDM [ expect lots of email and phone calls about upgrades ]
http://www.meraki.com/products/systems-manager/
https://discussions.apple.com/thread/4067210?tstart=0
Good howto by Sergio Sosa.
https://discussions.apple.com/thread/2594001?start=15&tstart=0
MobileIron
http://www.mobileiron.com/
Profile Manager by Apple
Zenprise
http://www.zenprise.com/

What is the best way to manage multiple devices with one iMac - different users with seperate itunes accounts or one mac user with different itune logons and libraries?

Hello
I have just purchased an imac which I am very happy with. In our household we also have two iphones (one mine and one husbands) and one ipod (my sons). We all have individual itunes accounts set up on our previous computer (not a mac). We have sepereate apps and music, although there may be the odd occasion where we would like to share a song (if this is possible) across devices.
I am just wondering the best way to manage these devices using the new imac. Should I create individual accounts to logon to the imac, then from within these launch our own itunes accounts and sync our devices with these. Or should I be using one version of itunes, logging on to this with our different itunes usernames and storing things in libraries.
Any help would be greatly appreciated.
Thanks

I am presuming that we cannot share downloaded apps and music between accounts because of the copyright issue,
Though I'm no copyright lawyer, as long as it's within a household, you can share content among users. Such sharing is, absent specific language preventing it not present in the iTunes Store terms of use, generally considered to be "personal use". So you can share apps and music amongst your users on your computer and with their devices. You just can't give any of that content to friends or relatives who don't live with you.
What I am not clear on, it making sure that this appears in each itunes account - is it easy to find the file storage folders that match the itunes accounts and what would these be?
The iTunes library and files are by default in a user's Home/Music folder. But you don't have to find the folder; in fact putting a file into the folder yourself won't add the file to iTunes. Just drag the file into the iTunes window. iTunes will copy it to the correct location.
Regards.

What's the best way to manage Apple IDs for multiple devices?

Hi,
We have
a shared Macbook air
a shared iPad
my iPhone
his iPhone
We want to put one ID on the Macbook and iPad that we can use to have the same iMessage on both and that we can put a card on and use in the iTunes store etc.
We also want to have our own iMessages on our iPhones, plus be able to use the account with the cards on them to purchase and share across devices...
What's the best way to manage them all?

Welcome to the Apple Community.
iTunes is straight forward, just use the same ID on all of them.
What exactly do you want to see in messages on the Mac and iPad, messages combined from each of your phones or a different account just for both of you.
You should think about what you want in calendars, contacts etc, on your shared devices.

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I am presuming that we cannot share downloaded apps and music between accounts because of the copyright issue,
Though I'm no copyright lawyer, as long as it's within a household, you can share content among users. Such sharing is, absent specific language preventing it not present in the iTunes Store terms of use, generally considered to be "personal use". So you can share apps and music amongst your users on your computer and with their devices. You just can't give any of that content to friends or relatives who don't live with you.
What I am not clear on, it making sure that this appears in each itunes account - is it easy to find the file storage folders that match the itunes accounts and what would these be?
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Regards.

What is the best way to manage multiple ipods using the same itunes?

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i am trying to manage three different ipods through the one Itunes, all with very different tastes, not sure if I am doing it the best or easiest way so does anybody have a simple solution on what you're supposed to do, to keep it all simple!
Cheers
Liv

If you have created a new Windows user account you need to log out and then log back in with your original user name. By default each Windows profile will have an independent iTunes library.
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What is the best way to manage multiple iPods using the same iTunes {library}?
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tt2

What is the best way to manage 5 users and 6 devices? We dont all want the same merged contacts, we dont all want the same calendar notes, music, pics etc etc.

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http://support.apple.com/kb/HT1751?viewlocale=en_US&locale=en_US
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I am presuming that we cannot share downloaded apps and music between accounts because of the copyright issue,
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Regards.

What is the best way to manage the file space given how much GB the video clips use up?

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HDef ~30-40GBs/h ...
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http://forums.adobe.com/thread/971994?tstart=0
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HT3819 I have 2 Ipod touch's, one a 64gb and one an 8gb. Whats the best way to use them both on the same itunes account?

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Whats the best way to manage 100s of thumbnails?

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