Drag and drop with files

hi! i know there is a drag and drop api in java but is is possible that i drop files in a window of my aplication? and how?

Have a look at http://java.sun.com/j2se/1.4/docs/guide/dragndrop/index.html
I've never used it (all my java work is non-ui), but it should do what you want.

Similar Messages

How to drag and drop a file with its Systemfile icon to a Jtext area

I want to drag and drop a file to a JText area with its system file icon , but the problem is I cant show the file icon.
Anyone knows this.
this is my code.
import java.awt.*;
import java.awt.image.BufferedImage;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.dnd.DnDConstants;
import java.awt.dnd.DropTarget;
import java.awt.dnd.DropTargetDragEvent;
import java.awt.dnd.DropTargetDropEvent;
import java.awt.dnd.DropTargetEvent;
import java.awt.dnd.DropTargetListener;
import java.io.File;
import javax.swing.*;
import javax.swing.filechooser.FileSystemView;
public class FileDrag extends JFrame implements DropTargetListener {
DropTarget dt;
File file;
JTextArea ta;
JLabel lbl;
Graphics g;
ImageIcon tmpIcon;
public FileDrag() {
super("Drop Test");
setSize(300, 300);
getContentPane().add(
new JLabel("Drop a list from your file chooser here:"),
BorderLayout.NORTH);
ta = new JTextArea();
ta.setBackground(Color.white);
getContentPane().add(ta);
dt = new DropTarget(ta, this);
setVisible(true);
public void dragEnter(DropTargetDragEvent dtde) {
System.out.println("Drag Enter");
public void dragExit(DropTargetEvent dte) {
System.out.println("Source: " + dte.getSource());
System.out.println("Drag Exit");
public void dragOver(DropTargetDragEvent dtde) {
System.out.println("Drag Over");
public void dropActionChanged(DropTargetDragEvent dtde) {
System.out.println("Drop Action Changed");
public void drop(DropTargetDropEvent dtde) {
FileSystemView view = FileSystemView.getFileSystemView();
JLabel testb;
Icon icon = null;
Toolkit tk;
Dimension dim;
BufferedImage buff = null;
try {
Transferable tr = dtde.getTransferable();
DataFlavor[] flavors = tr.getTransferDataFlavors();
for (int i = 0; i < flavors.length; i++) {
System.out.println("Possible flavor: " + flavors.getMimeType());
if (flavors[i].isFlavorJavaFileListType()) {
dtde.acceptDrop(DnDConstants.ACTION_COPY);
ta.setText("Successful file list drop.\n\n");
java.util.List list = (java.util.List) tr.getTransferData(flavors[i]);
for (int j = 0; j < list.size(); j++) {
System.out.println(list.get(j));
file = (File) list.get(j);
icon = view.getSystemIcon(file);
ta.append(list.get(j) + "\n");
ta.append("\n");
tk = Toolkit.getDefaultToolkit();
dim = tk.getBestCursorSize(icon.getIconWidth(), icon.getIconHeight());
buff = new BufferedImage(dim.width, dim.height, BufferedImage.TYPE_INT_ARGB);
icon.paintIcon(ta, buff.getGraphics(), 10, 10);
repaint();
dtde.dropComplete(true);
return;
System.out.println("Drop failed: " + dtde);
dtde.rejectDrop();
} catch (Exception e) {
e.printStackTrace();
dtde.rejectDrop();
public static void main(String args[]) {
new FileDrag();

I want to drag and drop a file to a JText area with its system file icon , but the problem is I cant show the file icon.
Anyone knows this.
this is my code.
import java.awt.*;
import java.awt.image.BufferedImage;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.dnd.DnDConstants;
import java.awt.dnd.DropTarget;
import java.awt.dnd.DropTargetDragEvent;
import java.awt.dnd.DropTargetDropEvent;
import java.awt.dnd.DropTargetEvent;
import java.awt.dnd.DropTargetListener;
import java.io.File;
import javax.swing.*;
import javax.swing.filechooser.FileSystemView;
public class FileDrag extends JFrame implements DropTargetListener {
DropTarget dt;
File file;
JTextArea ta;
JLabel lbl;
Graphics g;
ImageIcon tmpIcon;
public FileDrag() {
super("Drop Test");
setSize(300, 300);
getContentPane().add(
new JLabel("Drop a list from your file chooser here:"),
BorderLayout.NORTH);
ta = new JTextArea();
ta.setBackground(Color.white);
getContentPane().add(ta);
dt = new DropTarget(ta, this);
setVisible(true);
public void dragEnter(DropTargetDragEvent dtde) {
System.out.println("Drag Enter");
public void dragExit(DropTargetEvent dte) {
System.out.println("Source: " + dte.getSource());
System.out.println("Drag Exit");
public void dragOver(DropTargetDragEvent dtde) {
System.out.println("Drag Over");
public void dropActionChanged(DropTargetDragEvent dtde) {
System.out.println("Drop Action Changed");
public void drop(DropTargetDropEvent dtde) {
FileSystemView view = FileSystemView.getFileSystemView();
JLabel testb;
Icon icon = null;
Toolkit tk;
Dimension dim;
BufferedImage buff = null;
try {
Transferable tr = dtde.getTransferable();
DataFlavor[] flavors = tr.getTransferDataFlavors();
for (int i = 0; i < flavors.length; i++) {
System.out.println("Possible flavor: " + flavors.getMimeType());
if (flavors[i].isFlavorJavaFileListType()) {
dtde.acceptDrop(DnDConstants.ACTION_COPY);
ta.setText("Successful file list drop.\n\n");
java.util.List list = (java.util.List) tr.getTransferData(flavors[i]);
for (int j = 0; j < list.size(); j++) {
System.out.println(list.get(j));
file = (File) list.get(j);
icon = view.getSystemIcon(file);
ta.append(list.get(j) + "\n");
ta.append("\n");
tk = Toolkit.getDefaultToolkit();
dim = tk.getBestCursorSize(icon.getIconWidth(), icon.getIconHeight());
buff = new BufferedImage(dim.width, dim.height, BufferedImage.TYPE_INT_ARGB);
icon.paintIcon(ta, buff.getGraphics(), 10, 10);
repaint();
dtde.dropComplete(true);
return;
System.out.println("Drop failed: " + dtde);
dtde.rejectDrop();
} catch (Exception e) {
e.printStackTrace();
dtde.rejectDrop();
public static void main(String args[]) {
new FileDrag();

I download firefox 5.0 and now I'm having trouble dragging and dropping PDF files into Google Docs and I can't view the PDF once uploaded. I had no problems with this in the previous verion of Firefox

With firefox 5.0 I can't drag and drop pdf files in the google docs screen. When I do eventually get a pdf file uploaded I can't view it. I get "no preview available". In my previous verion of firefox (4.something) I had no problems with this and I was able to drag and drop and after uploaded I could view the entire file.

Thanks one again. I know you helped me the last to. I do have the Deja Vu font set in my folder. I downloaded and the last time. So I don't know if there is supposed to be more or not, but those were installed with Windows-XP after my reformat.
This is really driving me nuts. as I've done several re-formats on my computer and several friends computers and even upgraded hardware so I am not necessarily a software or programming expert, I am somewhat advanced when it comes to computers in general and can usually diagnose the problem but these font's are the problem and they never were before.
I did see in another forum that if you had a Dell Computer and did the Microsoft update for the onboard video card driver that it could be the culprit, but I have that disabled being I have a much better graphics card so the updates from Microsoft for the onboard video weren't installed.
It' a Dell Dimension 3000 with an Intel(R) 82865G Graphics Controller so I don't believe it is the culprit being it is disabled. The actual video card that I am using is a PCI Nvidia GeForce 9400 GT with 1 GB Memory. And I didn't have any problem before.
I appreciate the help. But still can't get things to work. Live Help Chat doesn't open for another two hours so maybe they can do "Remote Access" or something and can check setting and help me. But if you come up with other suggestions, they would be greatly appreciated.
Thanks again.
Susan

I want to drag and drop a file to a JText area with its file icon

I want to drag and drop a file to a JText area with its file icon , but the problem is I cant show the file icon.
Anyone knows this.
this is my code.
import java.awt.*;
import java.awt.image.BufferedImage;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.dnd.DnDConstants;
import java.awt.dnd.DropTarget;
import java.awt.dnd.DropTargetDragEvent;
import java.awt.dnd.DropTargetDropEvent;
import java.awt.dnd.DropTargetEvent;
import java.awt.dnd.DropTargetListener;
import java.io.File;
import javax.swing.*;
import javax.swing.filechooser.FileSystemView;
public class FileDrag extends JFrame implements DropTargetListener {
DropTarget dt;
File file;
JTextArea ta;
JLabel lbl;
Graphics g;
ImageIcon tmpIcon;
public FileDrag() {
super("Drop Test");
setSize(300, 300);
getContentPane().add(
new JLabel("Drop a list from your file chooser here:"),
BorderLayout.NORTH);
ta = new JTextArea();
ta.setBackground(Color.white);
getContentPane().add(ta);
dt = new DropTarget(ta, this);
setVisible(true);
public void dragEnter(DropTargetDragEvent dtde) {
System.out.println("Drag Enter");
public void dragExit(DropTargetEvent dte) {
System.out.println("Source: " + dte.getSource());
System.out.println("Drag Exit");
public void dragOver(DropTargetDragEvent dtde) {
System.out.println("Drag Over");
public void dropActionChanged(DropTargetDragEvent dtde) {
System.out.println("Drop Action Changed");
public void drop(DropTargetDropEvent dtde) {
FileSystemView view = FileSystemView.getFileSystemView();
JLabel testb;
Icon icon = null;
Toolkit tk;
Dimension dim;
BufferedImage buff = null;
try {
Transferable tr = dtde.getTransferable();
DataFlavor[] flavors = tr.getTransferDataFlavors();
for (int i = 0; i < flavors.length; i++) {
System.out.println("Possible flavor: " + flavors.getMimeType());
if (flavors.isFlavorJavaFileListType()) {
dtde.acceptDrop(DnDConstants.ACTION_COPY);
ta.setText("Successful file list drop.\n\n");
java.util.List list = (java.util.List) tr.getTransferData(flavors);
for (int j = 0; j < list.size(); j++) {
System.out.println(list.get(j));
file = (File) list.get(j);
icon = view.getSystemIcon(file);
ta.append(list.get(j) + "\n");
ta.append("\n");
tk = Toolkit.getDefaultToolkit();
dim = tk.getBestCursorSize(icon.getIconWidth(), icon.getIconHeight());
buff = new BufferedImage(dim.width, dim.height, BufferedImage.TYPE_INT_ARGB);
icon.paintIcon(ta, buff.getGraphics(), 10, 10);
repaint();
dtde.dropComplete(true);
return;
System.out.println("Drop failed: " + dtde);
dtde.rejectDrop();
} catch (Exception e) {
e.printStackTrace();
dtde.rejectDrop();
public static void main(String args[]) {
new FileDrag();
}

This appears to be a long-standing bug:
https://bugzilla.mozilla.org/show_bug.cgi?id=634720
and the accepted workaround is stated in comment 11.
Oddly, it's possible to do the reverse, i.e. drag multiple eml files from Explorer to a TB folder.

[SOLVED] Thunar 1.6 doesn't drag-and-drop with the right mouse button

Hallo all.
It might be something I've done (though I did delete my ~/.config/Thunar directory before upgrading), but Thunar doesn't let me drag-and-drop with the right mouse button, thus stopping me from copying something instead of moving it, etc. Has anyone else had that too?
Last edited by GordonGR (2012-12-28 14:34:20)

Joel wrote:
anonymous_user wrote:Is it supposed to be with the right-mouse button? I always thought drag and drop was done with the left button?
Could be right-hand user
Come on! Read what GordonGR wrote!
Microsoft Windows, Nautilus, the Haiku Tracker, and probably many other file managers have a feature where, when you right-click or middle-click and drag an icon to a new location, a pop-up menu appears and asks what you'd like to do (Move, Copy, Link). I thought I used to use this feature in Thunar too but it seems to have stopped working in recent versions. Has anyone else had any experience with it?
EDIT: Here's random blogger talking about the feature in an older version of Thunar: http://jeromeg.blog.free.fr/index.php?p … and-tricks So that's good, I wasn't just imagining the feature.
Last edited by drcouzelis (2012-12-12 03:45:05)

Why cant i drag and drop mp3 files into my itunes library in itunes 11.1.1?

I recently lost a hard drive with most of my music on it. i removed and reinstalled itunes and set it to work on my other hard drive. i was able to drag and drop mp3 files that i had and put them into my library. After the latest updates, now it only gives my the cirlcle with the slash though it when i try, not sure what changed

did you manage to fix your problem.
i tunes 6 used to be great for me but i upgraded to 7 which wiped my i tunes and ipod. im back to ver 6 now but i cant drag files from my c drive to any playlists

I just downloaded the new version of iTunes 10 and now it won't let me drag and drop any files from my computer.

I just downloaded the new version of iTunes 10 and now it won't let me drag and drop any files from my computer into my iTunes. It lets me play the song from the folder in my computer and then it opens with iTunes and plays the song all the way through, but then if I try to play it again, it says the file cannot be located. So then I go to locate and go to the folder and all that and select it and nothing happens.

Not sure whether for instance you initially had a Yahoo optimised version of Firefox, and have now overwritten it with an official Mozilla version. Although the Mozilla version should NOT add unwanted features, but the Yahoo version may well do.
If you merely need to find the Yahoo emails page quickly just add it as a bookmark or as a bookmark on the Bookmarks toolbar and make sure that is visible.
Clicking the star icon on the location bar whilst looking at your emails will bookmark the page.
* [[How to use bookmarks to save and organize your favorite websites]]
* [[Bookmarks Toolbar - Display your favorite websites at the top of the Firefox window]]
I do not use Yahoo myself,and am not sure what add-ons are available. You could search yourself using
* FirefoxButton -> add-ons
** see [[Find and install add-ons to add features to Firefox]]
** examples [https://addons.mozilla.org/en-us/firefox/addon/yahoo-toolbar/ yahoo toolbar] & [https://addons.mozilla.org/en-us/firefox/addon/yahoo-mail-notifier/ mail notifier]
* also look at Yahoo's own information such as http://help.yahoo.com/tutorials/toolbar/cl3/c3_ff_toolbar1.html

I can't drag and drop mp3 files directly to my shuffle

i have a ipod shuffle (2nd gen). i cant drag and drop mp3 files via itunes. it only allows me to put them into library and then sync it. but i dont want to sync, i just want to put mp3s directly into shuffle.
thanks

thanks for the patiance
with my old ipod (ipod nano 1st gen) i could easily drag and drop my mp3s from windows explorer to ipod by using itunes. is it itunes new version problem so that i couldnt drag and drop manually, or ipod shuffle problem.
thanks again.

I can't drag and drop word files to a folder

I can't drag and drop word files to a folder. When I click and hold over a file, nothing happens. Normally it goes where I drag it.

thanks for the patiance
with my old ipod (ipod nano 1st gen) i could easily drag and drop my mp3s from windows explorer to ipod by using itunes. is it itunes new version problem so that i couldnt drag and drop manually, or ipod shuffle problem.
thanks again.

How can i sync videos to my iphone 5 using Itunes 11. i also tried to convert the videos to mp4 and drag and drop the file in itunes but still i cant see videos in itunes library.

how can i sync videos to my iphone 5 using Itunes 11. i also tried to convert the videos to mp4 and drag and drop the file in itunes but still i cant see videos in itunes library.

Copied from this link.
http://www.apple.com/iphone/specs.html
Video formats supported: H.264 video up to 1080p, 30 frames per second, High Profile level 4.1 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps per channel, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format
There are 3rd party utilities available that "rip" content into a compatible format - most include an iPod and/or iPhone format selection. If a video plays in iTunes, iTunes includes an option to convert a selection for iPod/iPhone.

Drag and drop several files

Hi,
I'm using iPhoto '11 (version 9.4.2) and when I try to drag and drop several files into a folder, it fails.
Actually it just does nothing: the drag and drop icon is created with the accurate numbre of items in a red star, the folder blinks but when I release the mouse, nothing happens.
It fails sometimes with 3 photos, sometimes with 30.
What's more puzzling is that it sometimes works: if I drag and drop of a single photo it always works. And I'm sometimes able to drop 10 or more photos.
I'm running on a macbook pro retina with lion (10.8.2).
Any idea of logs I could look at for some informations, some errors messages?
Thanks,
Laurent.

I guess it creates new photos, hence it modifies the timestamps whereas drag and drop does not.
There are two kinds of metadata involved when you consider jpeg or other image file.
One is the file data. This is what the Finder shows. This tells you nothing about the contents of the file, just the File itself.
The problem with File metadata is that it can easily change as the file is moved from place to place or exported, e-mailed, uploaded etc.
Photographs have also got both Exif and IPTC metadata. The date and time that your camera snapped the Photograph is recorded in the Exif metadata. Regardless if what the file date says, this is the actual time recorded by the camera.
Photo applications like iPhoto, Aperture, Lightroom, Picasa, Photoshop etc get their date and time from the Exif metadata.
When you export from iPhoto to the Finder new file is created containing your Photo (and its Exif). The File date is - quite accurately - reported as the date of Export. However, the Photo Date doesn't change.
The problem is that the Finder doesn't work with Exif.
So, your photo has the correct date, and so does the file, but they are different things. To sort on the Photo date you'll need to use a photo app.

Can't drag and drop music files

after recent update i can't drag and drop mp3 files into library like before or go file->add file to library

Thanks for the quick response Sebastian.
Yeah, I know I can find the file in finder, but I used to be able to organize all my files in the iTunes interface and easily drag them to my project in AE CS3... so much more convenient.
I tried .aif and .wav files, all formats that AE accepts. Like I mentioned, I used to do this with AE CS3 and my Windows OS... I was just wondering if this was a Mac bug or something. Not the end of the world, but it's little things like this I waste half a day on trying to figure out!! lol.

Mail doesn't attach files through dragging and dropping the files!

Help please,
Mail doesn't attach files through dragging and dropping the files on OS X ML, it crashes for a while !!

Open Disk Utility and Repair disk permissions on the First Aid tab.
Then, Restart and boot into Recovery Mode by holding down cmd-r on restart until you see a gray screen. When the Mac boots, you will be presented with some options. Choose Disk Utility and select your Hard drive volume (Macintosh HD is the default name). Then, on the First Aid tab, click Repair Disk (not permissions).
If that doesn't help, you could try installing the 10.8.2 combo updater from the Apple Downloads site:
http://support.apple.com/kb/DL1581

I am unable to drag and drop image files in a JAVA supposrted site. I have all the lastest versions of softwarte here - everything is up to date.

I am no longer able to drag and drop image files int this JAVA supported site. It had always worked flawlessly in the past.
I would open the site, go to Send Files, allow access, fill out the fields and then drag and drop my image files. Now I can only use the ADD (+) button to do so.
I have the latest versions of OS-X Lion and JAVA installed on my computer
http://www.clippingprovider.com/CP_II_EU/Welcome.html

This is the Tech Sheet on the subject:
Photoshop Help | Managing paths
It contains this item under Manage Paths:
When you use a pen or shape tool to create a work path, the new path appears as the work path in the Paths panel. The work path is temporary; you must save it to avoid losing its contents.
Ok, the red you referred to is a Stoke you added. Then QuickMask is not involved.

Can't Drag and Drop with a Double Tap using Single Finger in Lion?

I installed the Mac OS X Lion two days. But I can't drag and drop with a Double tap using Single Finger, which I used to do in Snow Leopard.
If I choose Three Finger Move, then Swap Between Pages goes back to "Scroll left or right with Two Fingers" that only works with Safari, but doesn't work with Chrome or Firefox.
I tried literally every setting in Trackpad and also checked if there was a override settings and there is no overrride setting.
Would be thankful, if you guys could suggest me what to do?
======================================
My Machine Configuration:
Macbook Pro 13" (mid 2010)
Intel Core 2 Duo 2.4GHz
4GB Ram
Nvidia Geforce 320m
Mac OS X Lion (Installe on a updated Snow Leopard 10.6.8)

Hey Serge many thanks for telling me how to do. now its working like previously
I just cheked the Dragging under Trackpad option and unchecked Three Finger Moves. now I can drag and drop with a double tap using single finger.
Thank you guys. You are the best

Drag and drop with files

Similar Messages

Maybe you are looking for