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POJava drag and drop doesnt work
 

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  1. POJava drag and drop doesnt work
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    <p>I'm trying Java drag and drop action. Action works by mobilizing the path to the image that I wanted to portray subsequently label, but are not plotted, can someone please help?</p> <pre><code>class MyDragDropListener implements DropTargetListener { public void drop(DropTargetDropEvent event) { // Accept copy drops event.acceptDrop(DnDConstants.ACTION_COPY); // Get the transfer which can provide the dropped item data Transferable transferable = event.getTransferable(); // Get the data formats of the dropped item DataFlavor[] flavors = transferable.getTransferDataFlavors(); // Loop through the flavors for (DataFlavor flavor : flavors) { try { // If the drop items are files if (flavor.isFlavorJavaFileListType()) { // List files = (List) transferable.getTransferData(flavor); Object f = transferable.getTransferData(flavor); // Loop them through // for (File file : files) { // Print out the file path // System.out.println("File path is '" + f.getPath() + "'."); String cesta = f.toString(); String typ = ""; String cesta2 = ""; for (int i = 1; i &lt; cesta.length() - 1; i++) { if (cesta.charAt(i) == '\\') { cesta2 = cesta2 + '/'; } else { cesta2 = cesta2 + cesta.charAt(i); } } for (int i = cesta2.length() - 1; i &gt; 0; i--) { if (cesta2.charAt(i) == '.') { break; } typ = typ + cesta2.charAt(i); } typ = new StringBuilder(typ).reverse().toString().toLowerCase(); MojeOkno mo = new MojeOkno(); // Inform that the drop is complete mo.VlozObrazekDoLabelu(cesta2); System.out.println("METODA PROBEHLA"); } } catch (Exception e) { // Print out the error stack e.printStackTrace(); } } event.dropComplete(true); } public void dragEnter(DropTargetDragEvent event) { } public void dragExit(DropTargetEvent event) { } public void dragOver(DropTargetDragEvent event) { } public void dropActionChanged(DropTargetDragEvent event) { } } public void VlozObrazekDoLabelu(String Mojecesta) { System.out.println("Cesta k obrazku: " + Mojecesta); try { img = ImageIO.read(new File(Mojecesta)); Graphics2D g = (Graphics2D) PanelProObrazek_jPanel1.getGraphics(); g.drawImage(img, 3, 3, PanelProObrazek_jPanel1.getWidth() - 6, PanelProObrazek_jPanel1.getHeight() - 6, this); System.out.println("Dostal jsem se do try"); } catch (Exception e) { System.out.println("CHYBA"); } } </code></pre> <p>Greetings from Czech Republic.</p>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. This table or related slice is empty.
    1. USJaLe29
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. COGreetings from The Republic of China. Please : 1. Post an [SSCCE](http://sscce.org/). 2. Name your methods, parameters ... in English. You won't want to see 將圖像轉換成標籤 or 檔案路徑 in the answer.
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      1. POJava drag and drop doesnt work
      1. USjohnchen902
    2. COWhat is SSCCE? It doesnt work, I have created for you a simple example(with english comment). If you want to download the entire java file: [link](https://mega.co.nz/#!4M4CxS7B!H-u6OwiNT3Cw8c8Wk5QFhBF1xs44Mz74i2kXe6Hu5ho)
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      1. POJava drag and drop doesnt work
      1. USJaLe29
 

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