Java 在透明框架上添加图像
我想在透明的JFrame上显示图像。Java 在透明框架上添加图像,java,image,swing,frame,transparent,Java,Image,Swing,Frame,Transparent,我想在透明的JFrame上显示图像。 图像显示不清楚。 如果我添加任何组件,比如JButton或其他任何东西,它都会显示得很好 任何包含图像的组件 下面是一个代码示例 import java.awt.Color; public class PunchFrame2 extends javax.swing.JFrame { public PunchFrame2() { initComponents(); setUndecorated(true);
图像显示不清楚。 如果我添加任何组件,比如JButton或其他任何东西,它都会显示得很好 任何包含图像的组件 下面是一个代码示例
import java.awt.Color;
public class PunchFrame2 extends javax.swing.JFrame {
public PunchFrame2() {
initComponents();
setUndecorated(true);
setBackground(new Color(0,0,0,0));
}
/**
* This method is called from within the constructor to initialize the form.
* WARNING: Do NOT modify this code. The content of this method is always
* regenerated by the Form Editor.
*/
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">
private void initComponents() {
jPanel1 = new javax.swing.JPanel();
jLabel2 = new javax.swing.JLabel();
jLabel1 = new javax.swing.JLabel();
jLabel3 = new javax.swing.JLabel();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jPanel1.setBackground(java.awt.Color.black);
jLabel2.setFont(new java.awt.Font("Ubuntu", 1, 48)); // NOI18N
jLabel2.setForeground(java.awt.Color.white);
jLabel2.setText("Steve Jobs");
javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
jPanel1.setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
.addContainerGap(234, Short.MAX_VALUE)
.addComponent(jLabel2)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jLabel1)
.addGap(23, 23, 23))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jPanel1Layout.createSequentialGroup()
.addContainerGap()
.addComponent(jLabel2)
.addContainerGap(21, Short.MAX_VALUE))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, jPanel1Layout.createSequentialGroup()
.addGap(0, 0, Short.MAX_VALUE)
.addComponent(jLabel1))
);
jLabel3.setIcon(new javax.swing.ImageIcon("/home/username/Desktop/stevejobs.png")); // NOI18N
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addContainerGap()
.addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addContainerGap())
.addGroup(layout.createSequentialGroup()
.addGap(200, 200, 200)
.addComponent(jLabel3)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jLabel3)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jPanel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
);
java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
setBounds((screenSize.width-545)/2, (screenSize.height-290)/2, 545, 290);
}// </editor-fold>
/**
* @param args the command line arguments
*/
public static void main(String args[]) {
/* Create and display the form */
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
new PunchFrame2().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel2;
private javax.swing.JLabel jLabel3;
private javax.swing.JPanel jPanel1;
// End of variables declaration }
导入java.awt.Color;
公共类PunchFrame2扩展了javax.swing.JFrame{
公共PunchFrame2(){
初始化组件();
未装饰的设置(真实);
挫折背景(新颜色(0,0,0,0));
}
/**
*从构造函数中调用此方法来初始化表单。
*警告:不要修改此代码。此方法的内容始终为
*由表单编辑器重新生成。
*/
@抑制警告(“未选中”)
//
私有组件(){
jPanel1=newjavax.swing.JPanel();
jLabel2=newjavax.swing.JLabel();
jLabel1=newjavax.swing.JLabel();
jLabel3=newjavax.swing.JLabel();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setBackground(java.awt.Color.black);
jLabel2.setFont(新的java.awt.Font(“Ubuntu”,1,48));//NOI18N
jLabel2.set前台(java.awt.Color.white);
jLabel2.setText(“史蒂夫•乔布斯”);
javax.swing.GroupLayout jPanel1Layout=新的javax.swing.GroupLayout(jPanel1);
setLayout(jPanel1Layout);
jPanel1Layout.setHorizontalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING,jPanel1Layout.createSequentialGroup()
.addContainerGap(234,简称最大值)
.addComponent(jLabel2)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jLabel1)
.addGap(23,23,23))
);
jPanel1Layout.setVerticalGroup(
jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(jpanellayout.createSequentialGroup()
.addContainerGap()
.addComponent(jLabel2)
.addContainerGap(21,简称最大值))
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING,jPanel1Layout.createSequentialGroup()
.addGap(0,0,短.MAX_值)
.addComponent(jLabel1))
);
jLabel3.setIcon(新的javax.swing.ImageIcon(“/home/username/Desktop/stevejobs.png”);//NOI18N
javax.swing.GroupLayout=newjavax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(布局);
layout.setHorizontalGroup(
createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING,layout.createSequentialGroup()
.addContainerGap()
.addComponent(jPanel1,javax.swing.GroupLayout.DEFAULT\u SIZE,javax.swing.GroupLayout.DEFAULT\u SIZE,Short.MAX\u值)
.addContainerGap())
.addGroup(layout.createSequentialGroup()
.addGap(200200200200)
.addComponent(jLabel3)
.addContainerGap(javax.swing.GroupLayout.DEFAULT\u SIZE,Short.MAX\u VALUE))
);
layout.setVerticalGroup(
createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addComponent(jLabel3)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
.addComponent(jPanel1,javax.swing.GroupLayout.PREFERRED\u SIZE,javax.swing.GroupLayout.DEFAULT\u SIZE,javax.swing.GroupLayout.PREFERRED\u SIZE)
.addContainerGap(javax.swing.GroupLayout.DEFAULT\u SIZE,Short.MAX\u VALUE))
);
java.awt.Dimension screenSize=java.awt.Toolkit.getDefaultToolkit().getScreenSize();
立根((屏幕尺寸.宽度-545)/2,(屏幕尺寸.高度-290)/2545290);
}//
/**
*@param指定命令行参数
*/
公共静态void main(字符串参数[]){
/*创建并显示表单*/
invokeLater(new Runnable()){
公开募捐{
新的PunchFrame2().setVisible(true);
}
});
}
//变量声明-不修改
私有javax.swing.JLabel jLabel1;
私有javax.swing.JLabel jLabel2;
私有javax.swing.JLabel jLabel3;
私有javax.swing.JPanel jPanel1;
//变量结束声明}
我试过很多东西,比如
jLabel1.setOpaque(false)代码>
但这是徒劳的
如何解决这个问题
使用的图像:
结果:
只需调用setVisible(true)
。但是默认的JFrame
宽度和高度为零。它不会展开JFrame
尝试设置JFrame
的大小。
有两种方法:
PunchFrame2 frame = new PunchFrame2();
frame.pack();//或
frame.setSize(300300)代码>
你能链接到使用的图像以及结果的屏幕截图吗?在添加了pack()
之后,它对我有效,但是Windows 7、Java 7。我今天在家里的windowsXP上试用了我的程序,它运行得非常好,没有任何问题。但是当我们在工作中使用Ubuntu时,图像显示不清楚,所以在我看来,Ubuntu的问题不是程序本身。我会在周六将使用的图像和结果的屏幕截图链接给你,因为我们是在周末。谢谢这是使用的图像'target='''blank'>这是结果:@Andrew Thompson
frame.setVisible(true);