将图像渲染到标签中 [英] Rendering Image into label

问题描述

我有一个标签.我想将图像渲染到其中.但是下面的代码可以做任何事情.

I have a label. I want to render image into it. But the following code would do anything.

 CardLayout cl = (CardLayout) (mainPanel.getLayout());
        cl.show(mainPanel, "newPersonaCard");
        BufferedImage myPicture = ImageIO.read(new    File("C:\\Desktop\\Documents\\Pictures\\always.jpg"));
        ImageIcon icon = new ImageIcon(myPicture);
        icon.getImage().flush();

我正在使用netbean设计器.

I am using netbean designer.

推荐答案

您是正确的，在某些情况下，在JLabel中重新绘制Icon存在问题，那么您必须致电

You are right, in some cases there issue with repainting Icon in the JLabel, then you have to call,

myIcon.getImage().flush();
myLabel.setIcon(myIcon);

其余方法已在Icon和JLabel中正确实现

rest of methods is implemented in the Icon and JLabel correctly

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