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POLWUIT: Load images in background thread
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  1. POLWUIT: Load images in background thread
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    copied!<p>I have a list that contains about 20 image URLs and some other things.</p> <p>I want to display the other things (description) and allow the user to interact with the app while I load the 20 images.</p> <p>What I noticed is that no matter what I tried, I can't interact with the form until the images finished loading even though I am doing the loading in another thread.</p> <p>This is my solution I am using now.</p> <pre><code>private Container createServerItems() throws Exception { Container list = new Container(new BoxLayout(BoxLayout.Y_AXIS)); final int size = mediaList.size(); final Button buttons[] = new Button[size]; System.out.println("In here: " + size); for (int i = 0; i &lt; size; i++) { Container mainContainer = new Container(new BorderLayout()); Media m = new Media(); m.fromJSONString(mediaList.elementAt(i).toString()); buttons[i] = new Button("please wait"); final int whichButton = i; Display.getInstance().callSerially(new Runnable() { public void run() { try { System.out.println(MStrings.replaceAll(m.getImgURL(), "\"", "")); final StreamConnection streamConnection = (StreamConnection) Connector.open(MStrings.replaceAll(m.getImgURL(), "\"", "")); Image image = Image.createImage(streamConnection.openInputStream()); streamConnection.close(); buttons[whichButton].setText(""); buttons[whichButton].setIcon(image.scaled(32, 32)); } catch (Exception e) { } } }); TextArea t = new TextArea(m.getDesc()); t.setEditable(false); t.setFocusable(false); t.setGrowByContent(true); mainContainer.addComponent(BorderLayout.WEST, buttons[i]); mainContainer.addComponent(BorderLayout.CENTER, t); list.addComponent(mainContainer); } return list; } </code></pre>
 

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