使用JButton播放和停止媒體

Question

我正在創建一個簡單播放和停止按鈕，讓用戶預覽歌曲。 JButton1是播放按鈕，而JButton3應該是停止按鈕。但是當我點擊JButton3時，歌曲繼續播放。有什麼可以使jButton3正確行事嗎？

public PlayMusic() { 
    initComponents(); 
} 
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {           

    try{ 
     if(evt.getSource()== jButton1){ 
     InputStream in = new FileInputStream(new File("C:\\Users\\A\\Downloads\\Music\\I.wav")); 
     AudioStream ikon = new AudioStream(in);   
     AudioPlayer.player.start(ikon); } 
    }catch(Exception e){ 
     JOptionPane.showMessageDialog(null,e);} 

}         

jButton3ActionPerformed的（）

private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {           
     try{ 
     InputStream in = new FileInputStream(new File("C:\\Users\\A\\Downloads\\Music\\I.wav")); 
     AudioStream ikon = new AudioStream(in);  
     if(evt.getSource()== jButton3) 
     { 
     AudioPlayer.player.stop(ikon); 
     } 
     }catch(Exception e){ 
     JOptionPane.showMessageDialog(null,e);} 
}    

Answer 1

你需要傳遞的 '語音串流IKON' 同一個對象，它使用的是玩，停止播放音頻。

一個快速骯髒的修復，

public class Myplay{ 


public static void main(String[] args) { 
    ...... YOUR CODE TO FOR UI....... 
JButton btn1 = new JButton("Play"); 
    btn1.addActionListener(new ButtonListener()); 
    add(btn1); // ADD BUTTON TO JPanel 
JButton btn2 = new JButton("Stop"); 
    btn2.addActionListener(new ButtonListener()); 
    add(btn2); // ADD BUTTON TO JPanel 
    } 
} 

} 

class ButtonListener implements ActionListener { 

ButtonListener() { 
InputStream in = new FileInputStream(new File("C:\\Users\\A\\Downloads\\Music\\I.wav")); 
AudioStream ikon = new AudioStream(in); 
} 

    public void actionPerformed(ActionEvent e) { 
    if (e.getActionCommand().equals("Play")) { 
     AudioPlayer.player.start(ikon); 
    } 
if (e.getActionCommand().equals("Stop")) { 
     AudioPlayer.player.stop(ikon); 
    } 
    } 
} 

UPDATE 我建議你做以下

public PlayMusic() { 
initComponents(); 
initAudioStream(); 
} 

AudioStream ikon; 

private void initAudioStream(){ 
      InputStream in = new FileInputStream(new File("C:\\Users\\A\\Downloads\\Music\\I.wav")); 
      ikon = new AudioStream(in);   
} 

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {           

    try{ 
     if(evt.getSource()== jButton1){ 

     AudioPlayer.player.start(ikon); } 
    }catch(Exception e){ 
     JOptionPane.showMessageDialog(null,e);} 

} 

private void jButton3ActionPerformed(java.awt.event.ActionEvent evt) {           
     try{ 
     if(evt.getSource()== jButton3) 
     { 
     AudioPlayer.player.stop(ikon); 
     } 
     }catch(Exception e){ 
     JOptionPane.showMessageDialog(null,e);} 
}