質問編集履歴
2
追記
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@@ -2,7 +2,6 @@
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Javaのアプレットビューワーでタイマーを使った簡単な描画を行いたいのですが、途中までは動くのですが、急に止まってしまいます。自分なりに調べたところペイントメソッドが急に呼ばれなくなっているみたいです。この原因がわかる方、おられましたら回答お願い致します。
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#ソース
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```Java
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5
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-
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6
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import java.applet.*;
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7
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import java.io.*;
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8
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import javax.swing.*;
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@@ -18,65 +17,37 @@
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18
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*/
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public class test extends Applet implements ActionListener{
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21
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-
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20
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+
int X = 75, Y = 30, W = 30, H = 50, K = 10 ;
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22
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-
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21
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Timer timer, timer2;
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23
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-
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int x;
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24
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-
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Button btn = new Button("スタート");
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25
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-
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boolean btnClicked = false;
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-
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public void actionPerformed(ActionEvent e){
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-
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if (e.getSource() == timer2&&this.btnClicked==true){
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29
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-
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x+= 2;
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30
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-
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29
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if(x == 8){
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31
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-
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30
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x = 0;
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}
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}
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if (e.getSource() == timer&&this.btnClicked==true){
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34
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+
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timer2.start();
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}
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37
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if (e.getSource()==this.btn){
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this.btnClicked = true;
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this.timer.start();
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40
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}
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repaint() ;
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}
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@Override
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public void init(){
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34
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-
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timer = new Timer(20, this);
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35
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-
timer2 = new Timer(2, this);
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timer2 = new Timer(2, this);
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-
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add(this.btn);
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this.btn.addActionListener(this);
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37
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}
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-
if (e.getSource()==this.btn){
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this.btnClicked = true;
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this.timer.start();
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}
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repaint() ;
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}
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@Override
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public void init(){
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timer = new Timer(20, this);
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add(this.btn);
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this.btn.addActionListener(this);
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}
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public void start(){
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System.out.println("start");
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+
省略
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-
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public void stop(){
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System.out.println("stop");
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#追記
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-
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public void destroy(){
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System.out.println("destroy");
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}
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public void update(Graphics g){
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paint(g);
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}
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65
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public void paint(Graphics g){
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Dimension size = getSize();
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Image back = createImage(size.width, size.height);
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Graphics buffer = back.getGraphics();
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buffer.clearRect(0, 0, 150, 150);
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buffer.drawRect(X, Y, W, H);
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71
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-
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53
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timer2のインスタンスの生成をinitの中で行うことでアプレットは止まらなくなりました。
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72
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buffer.drawLine(X, Y+(K*2)-x, X+W, Y+(K*2)-x);
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73
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buffer.drawLine(X, Y+(K*3)-x, X+W, Y+(K*3)-x);
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buffer.drawLine(X, Y+(K*4)-x, X+W, Y+(K*4)-x);
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buffer.drawLine(X, Y+(K*5)-x, X+W, Y+(K*5)-x);
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g.drawImage(back, 0, 0, this);
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-
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78
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-
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79
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}
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80
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-
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81
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}
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82
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-
```
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1
追加
title
CHANGED
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File without changes
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body
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File without changes
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