Java swing 仿QQ實現賬號密碼輸入框
阿新 • • 發佈：2019-01-29
Java swing 仿QQ之實現賬號密碼輸入框
主要思路是自己定義 AccountPanel 和 PasswordPanel 類，繼承JPanel，通過 paintComponent(Graphics g) 方法重繪面板，實現目標樣式。
先上效果圖
正常顯示效果:
滑鼠放在控制元件上時的效果:
騰訊QQ登入介面的賬號密碼輸入部分效果比對:
下面直接給出程式碼吧
AccountPanel:
import java.awt.BasicStroke; import java.awt.Color; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.RenderingHints; import javax.swing.JPanel; public class AccountPanel extends JPanel{ private static final long serialVersionUID = 1L; private Color normalc=Color.LIGHT_GRAY; private Color borderc=Color.LIGHT_GRAY; private boolean flag=false; public AccountPanel(){} public AccountPanel(Color normalc,Color borderc){ this.normalc=normalc; this.borderc=borderc; } public void setBorder(boolean flag){ this.flag=flag; } @Override public void paintComponent(Graphics g){ super.paintComponent(g); Graphics2D g2=(Graphics2D) g; //設定繪圖質量 g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); //畫一個頂部兩個角為圓角，底部兩個角為直角的矩形 g2.setColor(Color.white); g2.fillRoundRect(0, 0, 190, 30, 10, 10); g2.fillRect(0, 10, 190, 17); //為該矩形新增邊框 if(flag){ g2.setStroke(new BasicStroke(2.0f)); g2.setColor(borderc); g2.drawArc(1, 1, 10, 10, 180, -90);//繪製圓弧 g2.drawLine(5, 1, 185, 1); g2.drawArc(179, 1, 10, 10, 90, -90);//繪製圓弧 g2.drawLine(1, 5, 1, 29); g2.drawLine(189, 5, 189, 29); g2.drawLine(1, 29, 190, 29); } else{ g2.setStroke(new BasicStroke(1.0f)); g2.setColor(normalc); g2.drawArc(0, 0, 10, 10, 180, -90);//繪製圓弧 g2.drawLine(5, 0, 185, 0); g2.drawArc(179, 0, 10, 10, 90, -90);//繪製圓弧 g2.drawLine(0, 5, 0, 30); g2.drawLine(189, 5, 189, 30); g2.drawLine(0, 30, 190, 30); } } }
PasswordPanel:
import java.awt.BasicStroke; import java.awt.Color; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.RenderingHints; import javax.swing.JPanel; public class PasswordPanel extends JPanel{ private static final long serialVersionUID = 1L; private Color normalc=Color.LIGHT_GRAY; private Color borderc=Color.LIGHT_GRAY; private boolean flag=false; public PasswordPanel(){} public PasswordPanel(Color normalc,Color borderc){ this.normalc=normalc; this.borderc=borderc; } public void setBorder(boolean flag){ this.flag=flag; } @Override public void paintComponent(Graphics g){ super.paintComponent(g); Graphics2D g2=(Graphics2D) g; //設定繪圖質量 g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); //畫一個頂部兩個角為圓角，底部兩個角為直角的矩形 g2.setColor(Color.white); g2.fillRoundRect(0, 0, 190, 30, 10, 10); g2.fillRect(0, 0, 190, 17); //為該矩形新增邊框 //為該矩形新增邊框 if(flag){ g2.setStroke(new BasicStroke(2.0f)); g2.setColor(borderc); g2.drawLine(1, 1, 1, 25); g2.drawLine(189, 1, 189, 25); g2.drawLine(1, 1, 190, 1); g2.drawArc(1, 18, 10, 10, 180, 90);//繪製圓弧 g2.drawArc(179, 18, 10, 10, 270, 90);//繪製圓弧 g2.drawLine(5, 29, 185, 29); } else{ g2.setStroke(new BasicStroke(1.0f)); g2.setColor(normalc); g2.drawLine(0, 0, 0, 25); g2.drawLine(189, 0, 189, 25); g2.drawLine(0, 0, 190, 0); g2.drawArc(0, 18, 10, 10, 180, 90);//繪製圓弧 g2.drawArc(179, 18, 10, 10, 270, 90);//繪製圓弧 g2.drawLine(5, 29, 185, 29); } } }
下面的程式碼就是主窗體了
Demo1:
import java.awt.Color; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPasswordField; import javax.swing.JTextField; public class Demo1 { public static void main(String[] args) { //初始化窗體 JFrame frame=new JFrame("My QQ"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setSize(300, 200); frame.setLocationRelativeTo(null); frame.setLayout(null); //新增賬號面板 AccountPanel accountPanel=new AccountPanel(Color.LIGHT_GRAY,new Color(56,172,239)); accountPanel.setLayout(null); accountPanel.setBounds(30, 15, 190, 30); frame.add( accountPanel); //在賬號面板中新增文字框 JTextField accountTF=new JTextField(); accountTF.setBounds(7, 0, 153, 30); accountTF.setOpaque(false); accountTF.setBorder(null); accountPanel.add(accountTF); //在賬號面板中的文字框後新增按鈕 JButton jb1=new JButton(new ImageIcon( Demo1.class.getClassLoader().getResource("res/images/btn1.png"))); jb1.setBounds(160, 0, 30, 30); jb1.setBorder(null);//取消邊框 jb1.setBorderPainted(false);//不繪製按鈕邊框 jb1.setContentAreaFilled(false);//設定按鈕背景透明 jb1.setFocusPainted(false);//設定按鈕不繪製焦點狀態 accountPanel.add(jb1); //密碼面板 PasswordPanel passwordPanel=new PasswordPanel(Color.LIGHT_GRAY,new Color(56,172,239)); passwordPanel.setLayout(null); passwordPanel.setBounds(30, 45, 190, 30); frame.add( passwordPanel); //輸入密碼文字框 JPasswordField passwordPF=new JPasswordField(); passwordPF.setBounds(7, 0, 153, 30); passwordPF.setOpaque(false); passwordPF.setBorder(null); passwordPanel.add(passwordPF); //在賬號面板中的文字框後新增按鈕 JButton jb2=new JButton(new ImageIcon( Demo1.class.getClassLoader().getResource("res/images/btn2.png"))); jb2.setBounds(160, 0, 30, 30); jb2.setBorder(null); jb2.setBorderPainted(false); jb2.setContentAreaFilled(false); jb2.setFocusPainted(false); passwordPanel.add(jb2); //為賬號輸入框新增滑鼠監聽器 MouseAdapter accountListener=new MouseAdapter(){ @Override public void mouseEntered(MouseEvent e) { // TODO Auto-generated method stub accountPanel.setBorder(true); accountPanel.updateUI(); } @Override public void mouseExited(MouseEvent e) { // TODO Auto-generated method stub accountPanel.setBorder(false); accountPanel.updateUI(); } }; accountTF.addMouseListener(accountListener); jb1.addMouseListener(accountListener); //為密碼輸入框新增滑鼠監聽器 MouseAdapter passwordListener=new MouseAdapter(){ @Override public void mouseEntered(MouseEvent e) { // TODO Auto-generated method stub passwordPanel.setBorder(true); passwordPanel.updateUI(); } @Override public void mouseExited(MouseEvent e) { // TODO Auto-generated method stub passwordPanel.setBorder(false); passwordPanel.updateUI(); } }; passwordPF.addMouseListener(passwordListener); jb2.addMouseListener(passwordListener); frame.setVisible(true); } }
自此，仿QQ登入賬號密碼輸入框就完成了。