Java Swing 创建转圈的进度提示框

总是觉得Java Swing没有Android的好,不能自定义组件,实现漂亮的进度提示框,比如那种转圈的,谷歌了一下竟然发现有大牛实现了类似的额效果:

使用方法:

1.具体只需要两个类:AnimatedPanel.java, InfiniteProgressPanel.java,具体的内容如下:

AnimatedPanel.java的代码如下:

1. package com.jframe.ceshi;
3. /*
4. * Created on 25 juin 2004
5. * AnimatedPanel.java
6. * Panneau anim茅.
7. */
9. import java.awt.AlphaComposite;
10. import java.awt.Color;
11. import java.awt.Font;
12. import java.awt.Graphics;
13. import java.awt.Graphics2D;
14. import java.awt.Image;
15. import java.awt.RenderingHints;
16. import java.awt.font.FontRenderContext;
17. import java.awt.font.TextLayout;
18. import java.awt.geom.Rectangle2D;
19. import java.awt.image.BufferedImage;
20. import java.awt.image.BufferedImageOp;
21. import java.awt.image.ConvolveOp;
22. import java.awt.image.Kernel;
24. import javax.swing.ImageIcon;
25. import javax.swing.JPanel;
27. /**
28. * Affiche un panneau anim茅. L'animation consiste en l'highlight d'une image.
29. *
30. * @author Romain Guy
31. */
32. public class AnimatedPanel extends JPanel {
34. /**
35. *
36. */
37. private static final long serialVersionUID = 1L;
38. private float gradient;
39. private String message;
40. private Thread animator;
41. private BufferedImage convolvedImage;
42. private BufferedImage originalImage;
43. private Font font;
44. private static AlphaComposite composite = AlphaComposite.getInstance(AlphaComposite.SRC_OVER);
46. /**
47. * Cr茅e un panneau anim茅 contenant l'image pass茅e en param猫tre. L'animation
48. * ne d茅marre que par un appel 脿 start().
49. *
50. * @param message Le message 脿 afficher
51. * @param icon L'image 脿 afficher et 脿 animer
52. * @author Romain Guy
53. */
54. public AnimatedPanel(String message, ImageIcon icon) {
55. this.message = message;
56. this.font = getFont().deriveFont(14.0f);
58. Image image = icon.getImage();
59. originalImage = new BufferedImage(icon.getIconWidth(), icon.getIconHeight(), BufferedImage.TYPE_INT_ARGB);
60. convolvedImage = new BufferedImage(icon.getIconWidth(), icon.getIconHeight(), BufferedImage.TYPE_INT_ARGB);
61. Graphics g = originalImage.createGraphics();
62. g.drawImage(image, 0, 0, this);
63. g.dispose();
65. setBrightness(1.0f);
66. setOpaque(false);
67. }
69. @Override
70. public void paintComponent(Graphics g) {
71. super.paintComponent(g);
73. if (convolvedImage != null) {
74. int width = getWidth();
75. int height = getHeight();
77. synchronized (convolvedImage) {
78. Graphics2D g2 = (Graphics2D) g;
79. g2.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
80. g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
81. g2.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
83. FontRenderContext context = g2.getFontRenderContext();
84. TextLayout layout = new TextLayout(message, font, context);
85. Rectangle2D bounds = layout.getBounds();
87. int x = (width - convolvedImage.getWidth(null)) / 2;
88. int y = (int) (height - (convolvedImage.getHeight(null) + bounds.getHeight() + layout.getAscent())) / 2;
90. g2.drawImage(convolvedImage, x, y, this);
91. g2.setColor(new Color(0, 0, 0, (int) (gradient * 255)));
92. layout.draw(g2, (float) (width - bounds.getWidth()) / 2,
93. (float) (y + convolvedImage.getHeight(null) + bounds.getHeight() + layout.getAscent()));
94. }
95. }
96. }
98. /**
99. * Modifie la luminosit茅 de l'image.
100. *
101. * @param multiple Le taux de luminosit茅
102. */
103. private void setBrightness(float multiple) {
104. float[] brightKernel = { multiple };
105. RenderingHints hints = new RenderingHints(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
106. BufferedImageOp bright = new ConvolveOp(new Kernel(1, 1, brightKernel), ConvolveOp.EDGE_NO_OP, hints);
107. bright.filter(originalImage, convolvedImage);
108. repaint();
109. }
111. /**
112. * Modifie le d茅grad茅 du texte.
113. *
114. * @param gradient Le coefficient de d茅grad茅
115. */
116. private void setGradientFactor(float gradient) {
117. this.gradient = gradient;
118. }
120. /**
121. * D茅marre l'animation du panneau.
122. */
123. public void start() {
124. this.animator = new Thread(new HighlightCycler(), "Highlighter");
125. this.animator.start();
126. }
128. /**
129. * Arr锚te l'animation.
130. */
131. public void stop() {
132. if (this.animator != null) {
133. this.animator.interrupt();
134. }
135. this.animator = null;
136. }
138. /**
139. * Fait cycler la valeur d'highlight de l'image.
140. *
141. * @author Romain Guy
142. */
143. class HighlightCycler implements Runnable {
145. private int way = 1;
146. private final int LOWER_BOUND = 10;
147. private final int UPPER_BOUND = 35;
148. private int value = LOWER_BOUND;
150. @Override
151. public void run() {
152. while (true) {
153. try {
154. Thread.sleep(1000 / (UPPER_BOUND - LOWER_BOUND));
155. } catch (InterruptedException e) {
156. return;
157. }
159. value += this.way;
160. if (value > UPPER_BOUND) {
161. value = UPPER_BOUND;
162. this.way = -1;
163. } else if (value < LOWER_BOUND) {
164. value = LOWER_BOUND;
165. this.way = 1;
166. }
168. synchronized (convolvedImage) {
169. setBrightness((float) value / 10);
170. setGradientFactor((float) value / UPPER_BOUND);
171. }
172. }
173. }
175. }
176. }

2. InfiniteProgressPanel.java代码如下:

1. package com.jframe.ceshi;
3. import java.awt.Color;
4. import java.awt.Graphics;
5. import java.awt.Graphics2D;
6. import java.awt.RenderingHints;
7. import java.awt.event.MouseEvent;
8. import java.awt.event.MouseListener;
9. import java.awt.font.FontRenderContext;
10. import java.awt.font.TextLayout;
11. import java.awt.geom.AffineTransform;
12. import java.awt.geom.Area;
13. import java.awt.geom.Ellipse2D;
14. import java.awt.geom.Point2D;
15. import java.awt.geom.Rectangle2D;
17. import javax.swing.JComponent;
19. public class InfiniteProgressPanel extends JComponent implements MouseListener {
20. /**
21. *
22. */
23. private static final long serialVersionUID = 1L;
24. protected Area[] ticker = null;
25. protected Thread animation = null;
26. protected boolean started = false;
27. protected int alphaLevel = 0;
28. protected int rampDelay = 300;
29. protected float shield = 0.70f;
30. protected String text = "";
31. protected int barsCount = 14;
32. protected float fps = 15.0f;
34. protected RenderingHints hints = null;
36. public InfiniteProgressPanel() {
37. this("");
38. }
40. public InfiniteProgressPanel(String text) {
41. this(text, 14);
42. }
44. public InfiniteProgressPanel(String text, int barsCount) {
45. this(text, barsCount, 0.70f);
46. }
48. public InfiniteProgressPanel(String text, int barsCount, float shield) {
49. this(text, barsCount, shield, 15.0f);
50. }
52. public InfiniteProgressPanel(String text, int barsCount, float shield, float fps) {
53. this(text, barsCount, shield, fps, 300);
54. }
56. public InfiniteProgressPanel(String text, int barsCount, float shield, float fps, int rampDelay) {
57. this.text = text;
58. this.rampDelay = rampDelay >= 0 ? rampDelay : 0;
59. this.shield = shield >= 0.0f ? shield : 0.0f;
60. this.fps = fps > 0.0f ? fps : 15.0f;
61. this.barsCount = barsCount > 0 ? barsCount : 14;
63. this.hints = new RenderingHints(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
64. this.hints.put(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
65. this.hints.put(RenderingHints.KEY_FRACTIONALMETRICS, RenderingHints.VALUE_FRACTIONALMETRICS_ON);
66. }
68. public void setText(String text) {
69. repaint();
70. this.text = text;
71. }
73. public String getText() {
74. return text;
75. }
77. public void start() {
78. addMouseListener(this);
79. setVisible(true);
80. ticker = buildTicker();
81. animation = new Thread(new Animator(true));
82. animation.start();
83. }
85. public void stop() {
86. if (animation != null) {
87. animation.interrupt();
88. animation = null;
89. animation = new Thread(new Animator(false));
90. animation.start();
91. }
92. }
94. public void interrupt() {
95. if (animation != null) {
96. animation.interrupt();
97. animation = null;
99. removeMouseListener(this);
100. setVisible(false);
101. }
102. }
104. @Override
105. public void paintComponent(Graphics g) {
106. if (started) {
107. int width = getWidth();
108. int height = getHeight();
110. double maxY = 0.0;
112. Graphics2D g2 = (Graphics2D) g;
113. g2.setRenderingHints(hints);
115. g2.setColor(new Color(255, 255, 255, (int) (alphaLevel * shield)));
116. g2.fillRect(0, 0, getWidth(), getHeight());
118. for (int i = 0; i < ticker.length; i++) {
119. int channel = 224 - 128 / (i + 1);
120. g2.setColor(new Color(channel, channel, channel, alphaLevel));
121. g2.fill(ticker[i]);
123. Rectangle2D bounds = ticker[i].getBounds2D();
124. if (bounds.getMaxY() > maxY) {
125. maxY = bounds.getMaxY();
126. }
127. }
129. if (text != null && text.length() > 0) {
130. FontRenderContext context = g2.getFontRenderContext();
131. TextLayout layout = new TextLayout(text, getFont(), context);
132. Rectangle2D bounds = layout.getBounds();
133. g2.setColor(getForeground());
134. layout.draw(g2, (float) (width - bounds.getWidth()) / 2,
135. (float) (maxY + layout.getLeading() + 2 * layout.getAscent()));
136. }
137. }
138. }
140. private Area[] buildTicker() {
141. Area[] ticker = new Area[barsCount];
142. Point2D.Double center = new Point2D.Double((double) getWidth() / 2, (double) getHeight() / 2);
143. double fixedAngle = 2.0 * Math.PI / (barsCount);
145. for (double i = 0.0; i < barsCount; i++) {
146. Area primitive = buildPrimitive();
148. AffineTransform toCenter = AffineTransform.getTranslateInstance(center.getX(), center.getY());
149. AffineTransform toBorder = AffineTransform.getTranslateInstance(45.0, -6.0);
150. AffineTransform toCircle = AffineTransform.getRotateInstance(-i * fixedAngle, center.getX(), center.getY());
152. AffineTransform toWheel = new AffineTransform();
153. toWheel.concatenate(toCenter);
154. toWheel.concatenate(toBorder);
156. primitive.transform(toWheel);
157. primitive.transform(toCircle);
159. ticker[(int) i] = primitive;
160. }
162. return ticker;
163. }
165. private Area buildPrimitive() {
166. Rectangle2D.Double body = new Rectangle2D.Double(6, 0, 30, 12);
167. Ellipse2D.Double head = new Ellipse2D.Double(0, 0, 12, 12);
168. Ellipse2D.Double tail = new Ellipse2D.Double(30, 0, 12, 12);
170. Area tick = new Area(body);
171. tick.add(new Area(head));
172. tick.add(new Area(tail));
174. return tick;
175. }
177. protected class Animator implements Runnable {
178. private boolean rampUp = true;
180. protected Animator(boolean rampUp) {
181. this.rampUp = rampUp;
182. }
184. @Override
185. public void run() {
186. Point2D.Double center = new Point2D.Double((double) getWidth() / 2, (double) getHeight() / 2);
187. double fixedIncrement = 2.0 * Math.PI / (barsCount);
188. AffineTransform toCircle = AffineTransform.getRotateInstance(fixedIncrement, center.getX(), center.getY());
190. long start = System.currentTimeMillis();
191. if (rampDelay == 0) {
192. alphaLevel = rampUp ? 255 : 0;
193. }
195. started = true;
196. boolean inRamp = rampUp;
198. while (!Thread.interrupted()) {
199. if (!inRamp) {
200. for (int i = 0; i < ticker.length; i++) {
201. ticker[i].transform(toCircle);
202. }
203. }
205. repaint();
207. if (rampUp) {
208. if (alphaLevel < 255) {
209. alphaLevel = (int) (255 * (System.currentTimeMillis() - start) / rampDelay);
210. if (alphaLevel >= 255) {
211. alphaLevel = 255;
212. inRamp = false;
213. }
214. }
215. } else if (alphaLevel > 0) {
216. alphaLevel = (int) (255 - (255 * (System.currentTimeMillis() - start) / rampDelay));
217. if (alphaLevel <= 0) {
218. alphaLevel = 0;
219. break;
220. }
221. }
223. try {
224. Thread.sleep(inRamp ? 10 : (int) (1000 / fps));
225. } catch (InterruptedException ie) {
226. break;
227. }
228. Thread.yield();
229. }
231. if (!rampUp) {
232. started = false;
233. repaint();
235. setVisible(false);
236. removeMouseListener(InfiniteProgressPanel.this);
237. }
238. }
239. }
241. @Override
242. public void mouseClicked(MouseEvent e) {
243. }
245. @Override
246. public void mousePressed(MouseEvent e) {
247. }
249. @Override
250. public void mouseReleased(MouseEvent e) {
251. }
253. @Override
254. public void mouseEntered(MouseEvent e) {
255. }
257. @Override
258. public void mouseExited(MouseEvent e) {
259. }
260. }

3.如何在你的Java Swing使用呢,如下步骤:

JFrame frame = new JFrame(); // ... InfiniteProgressPanel glasspane = new InfiniteProgressPanel();

Dimension dimension = Toolkit.getDefaultToolkit().getScreenSize(); glasspane.setBounds(100, 100, (dimension.width) / 2, (dimension.height) / 2); frame.setGlassPane(glasspane); glasspane.start();//开始动画加载效果 frame.setVisible(true);   // Later, to disable,在合适的地方关闭动画效果 glasspane.stop();

参考的两个链接如下:

http://www.javalobby.org/java/forums/t19222.html,http://www.curious-creature.com/2005/02/15/wait-with-style-in-swing/