Java by API/javax.microedition.lcdui/Graphics
Содержание
- 1 Graphics.BASELINE
- 2 Graphics.BOTTOM
- 3 Graphics.DOTTED
- 4 Graphics: drawArc(int x, int y, int width, int height, int startAngle, int arcAngle)
- 5 Graphics: drawLine(int x1, int y1, int x2, int y2)
- 6 Graphics: drawString(String str, int x, int y, int anchor)
- 7 Graphics: fillArc(int x, int y, int width, int height, int startAngle, int arcAngle)
- 8 Graphics: fillRect(int x, int y, int width, int height)
- 9 Graphics: fillRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight)
- 10 Graphics.HCENTER
- 11 Graphics.LEFT
- 12 Graphics: setClip(int x, int y, int width, int height)
- 13 Graphics: setColor(int RGB)
- 14 Graphics: setGrayScale(int value)
- 15 Graphics: setStrokeStyle(int style)
- 16 Graphics.SOLID
- 17 Graphics.TOP
- 18 Graphics: translate(int x, int y)
- 19 Graphics.VCENTER
Graphics.BASELINE
<source lang="java">
import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.Graphics; import javax.microedition.midlet.MIDlet; public class ClockMIDlet extends MIDlet implements CommandListener {
private Command exitCommand;
Display display;
public void startApp() {
Display display = Display.getDisplay(this);
Displayable d = new ClockCanvas(10, 10, 10);
exitCommand = new Command("Exit", Command.EXIT, 1);
d.addCommand(exitCommand);
d.setCommandListener(this);
display.setCurrent(d);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
public void commandAction(Command c, Displayable s) {
notifyDestroyed();
}
} class ClockCanvas extends Canvas {
private int hour;
private int minute;
private int second;
protected int xCenter, yCenter;
protected int clockRadius;
int width = 0;
int height = 0;
ClockCanvas(int hour, int minute, int second) {
this.hour = hour;
this.minute = minute;
this.second = second;
}
public void paint(Graphics g) {
width = getWidth();
height = getHeight();
g.setGrayScale(255);
g.fillRect(0, 0, width - 1, height - 1);
g.setGrayScale(0);
g.drawRect(0, 0, width - 1, height - 1);
clockRadius = Math.min(width, height) - 20;
xCenter = getWidth() / 2;
yCenter = getHeight() / 2;
g.drawArc(10, 12, clockRadius, clockRadius, 0, 360);
g.drawString("12", xCenter, 0, Graphics.TOP | Graphics.HCENTER);
g.drawString("9", 1, yCenter, Graphics.BASELINE | Graphics.LEFT);
g.drawString("3", width - 1, yCenter, Graphics.BASELINE | Graphics.RIGHT);
g.drawString("6", xCenter, height, Graphics.BOTTOM | Graphics.RIGHT);
}
}
</source>
Graphics.BOTTOM
<source lang="java">
import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.Graphics; import javax.microedition.midlet.MIDlet; public class ClockMIDlet extends MIDlet implements CommandListener {
private Command exitCommand;
Display display;
public void startApp() {
Display display = Display.getDisplay(this);
Displayable d = new ClockCanvas(10, 10, 10);
exitCommand = new Command("Exit", Command.EXIT, 1);
d.addCommand(exitCommand);
d.setCommandListener(this);
display.setCurrent(d);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
public void commandAction(Command c, Displayable s) {
notifyDestroyed();
}
} class ClockCanvas extends Canvas {
private int hour;
private int minute;
private int second;
protected int xCenter, yCenter;
protected int clockRadius;
int width = 0;
int height = 0;
ClockCanvas(int hour, int minute, int second) {
this.hour = hour;
this.minute = minute;
this.second = second;
}
public void paint(Graphics g) {
width = getWidth();
height = getHeight();
g.setGrayScale(255);
g.fillRect(0, 0, width - 1, height - 1);
g.setGrayScale(0);
g.drawRect(0, 0, width - 1, height - 1);
clockRadius = Math.min(width, height) - 20;
xCenter = getWidth() / 2;
yCenter = getHeight() / 2;
g.drawArc(10, 12, clockRadius, clockRadius, 0, 360);
g.drawString("12", xCenter, 0, Graphics.TOP | Graphics.HCENTER);
g.drawString("9", 1, yCenter, Graphics.BASELINE | Graphics.LEFT);
g.drawString("3", width - 1, yCenter, Graphics.BASELINE | Graphics.RIGHT);
g.drawString("6", xCenter, height, Graphics.BOTTOM | Graphics.RIGHT);
}
}
</source>
Graphics.DOTTED
<source lang="java">
import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Graphics; import javax.microedition.midlet.MIDlet; public class SetStrokeStyleGraphicsMIDlet extends MIDlet {
private Display display;
protected void startApp() {
Canvas canvas = new LineCanvas();
display = Display.getDisplay(this);
display.setCurrent(canvas);
}
protected void pauseApp() {
}
protected void destroyApp(boolean unconditional) {
}
} class LineCanvas extends Canvas {
public void paint(Graphics g) {
int width = getWidth();
int height = getHeight();
g.setColor(0);
g.setStrokeStyle(Graphics.DOTTED);
g.drawLine(0, height / 2, width - 1, height / 2);
}
}
</source>
Graphics: drawArc(int x, int y, int width, int height, int startAngle, int arcAngle)
<source lang="java">
import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.Graphics; import javax.microedition.midlet.MIDlet; public class J2MEArcExample extends MIDlet {
private Display display;
private MyCanvas canvas;
public J2MEArcExample() {
display = Display.getDisplay(this);
canvas = new MyCanvas(this);
}
protected void startApp() {
display.setCurrent(canvas);
}
protected void pauseApp() {
}
protected void destroyApp(boolean unconditional) {
}
public void exitMIDlet() {
destroyApp(true);
notifyDestroyed();
}
} class MyCanvas extends Canvas implements CommandListener {
private Command exit;
private J2MEArcExample arcExample;
public MyCanvas(J2MEArcExample arcExample) {
this.arcExample = arcExample;
exit = new Command("Exit", Command.EXIT, 1);
addCommand(exit);
setCommandListener(this);
}
protected void paint(Graphics graphics) {
graphics.setColor(255, 255, 255);
graphics.fillRect(0, 0, getWidth(), getHeight());
graphics.setColor(255, 0, 0);
graphics.drawArc(0, 0, getWidth(), getHeight(), 180, 180);
}
public void commandAction(Command command, Displayable displayable) {
if (command == exit) {
arcExample.exitMIDlet();
}
}
}
</source>
Graphics: drawLine(int x1, int y1, int x2, int y2)
<source lang="java">
import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Graphics; import javax.microedition.midlet.MIDlet; public class SetColorGraphicsMIDlet extends MIDlet {
private Display display;
protected void startApp() {
Canvas canvas = new LineCanvas();
display = Display.getDisplay(this);
display.setCurrent(canvas);
}
protected void pauseApp() {
}
protected void destroyApp(boolean unconditional) {
}
} class LineCanvas extends Canvas {
public void paint(Graphics g) {
int width = getWidth();
int height = getHeight();
g.setColor(0xFFFF00);
g.drawLine(0, height / 4, width - 1, height / 4);
}
}
</source>
Graphics: drawString(String str, int x, int y, int anchor)
<source lang="java">
import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Graphics; import javax.microedition.midlet.MIDlet; public class DrawStringGraphicsMIDlet extends MIDlet {
private Display display;
protected void startApp() {
Canvas canvas = new LineCanvas();
display = Display.getDisplay(this);
display.setCurrent(canvas);
}
protected void pauseApp() {
}
protected void destroyApp(boolean unconditional) {
}
} class LineCanvas extends Canvas {
public void paint(Graphics g) {
int width = getWidth();
int height = getHeight();
g.setColor(0);
g.setStrokeStyle(Graphics.SOLID);
g.drawString("Top left", 0, 0, Graphics.TOP | Graphics.LEFT);
}
}
</source>
Graphics: fillArc(int x, int y, int width, int height, int startAngle, int arcAngle)
<source lang="java">
import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Graphics; import javax.microedition.midlet.MIDlet; public class FillArcGraphicsMIDlet extends MIDlet {
private Display display;
protected void startApp() {
Canvas canvas = new LineCanvas();
display = Display.getDisplay(this);
display.setCurrent(canvas);
}
protected void pauseApp() {
}
protected void destroyApp(boolean unconditional) {
}
} class LineCanvas extends Canvas {
public void paint(Graphics g) {
int width = getWidth();
int height = getHeight();
g.setColor(0);
g.setStrokeStyle(Graphics.SOLID);
g.fillArc(0, 0, width/2, height/2, 0, 90);
}
}
</source>
Graphics: fillRect(int x, int y, int width, int height)
<source lang="java">
import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.Graphics; import javax.microedition.midlet.MIDlet; public class SizeMIDlet extends MIDlet implements CommandListener {
private Command exitCommand;
Display display;
public void startApp() {
Display display = Display.getDisplay(this);
Displayable d = new SizeCanvas();
exitCommand = new Command("Exit", Command.EXIT, 1);
d.addCommand(exitCommand);
d.setCommandListener(this);
display.setCurrent(d);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
public void commandAction(Command c, Displayable s) {
notifyDestroyed();
}
} class SizeCanvas extends Canvas {
int width = 0;
int height = 0;
public void paint(Graphics g) {
width = getWidth();
height = getHeight();
g.setGrayScale(255);
g.fillRect(0, 0, width - 1, height - 1);
g.setGrayScale(0);
g.drawString("Stroke Style:" + g.getStrokeStyle(), 0, 60, Graphics.TOP | Graphics.LEFT);
g.drawRect(0, 0, width - 1, height - 1);
g.setStrokeStyle(Graphics.DOTTED);
g.drawLine(00, 40, 60, 60);
}
}
</source>
Graphics: fillRoundRect(int x, int y, int width, int height, int arcWidth, int arcHeight)
<source lang="java">
import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.Graphics; import javax.microedition.midlet.MIDlet; public class J2MEPacer extends MIDlet {
public void startApp() {
Displayable d = new PacerCanvas();
d.addCommand(new Command("Exit", Command.EXIT, 0));
d.setCommandListener(new CommandListener() {
public void commandAction(Command c, Displayable s) {
notifyDestroyed();
}
});
Display.getDisplay(this).setCurrent(d);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
} class PacerCanvas extends Canvas {
public void paint(Graphics g) {
int w = getWidth();
int h = getHeight();
g.setColor(0xffffff);
g.fillRect(0, 0, w, h);
g.setColor(0x000000);
g.drawRect(12, 12, 20, 20);
g.fillRoundRect(33, 33, 20, 20, 5, 5);
g.drawArc(8, 88, 20, 20, 0, 360);
}
}
</source>
Graphics.HCENTER
<source lang="java">
import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.Graphics; import javax.microedition.midlet.MIDlet; public class ClockMIDlet extends MIDlet implements CommandListener {
private Command exitCommand;
Display display;
public void startApp() {
Display display = Display.getDisplay(this);
Displayable d = new ClockCanvas(10, 10, 10);
exitCommand = new Command("Exit", Command.EXIT, 1);
d.addCommand(exitCommand);
d.setCommandListener(this);
display.setCurrent(d);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
public void commandAction(Command c, Displayable s) {
notifyDestroyed();
}
} class ClockCanvas extends Canvas {
private int hour;
private int minute;
private int second;
protected int xCenter, yCenter;
protected int clockRadius;
int width = 0;
int height = 0;
ClockCanvas(int hour, int minute, int second) {
this.hour = hour;
this.minute = minute;
this.second = second;
}
public void paint(Graphics g) {
width = getWidth();
height = getHeight();
g.setGrayScale(255);
g.fillRect(0, 0, width - 1, height - 1);
g.setGrayScale(0);
g.drawRect(0, 0, width - 1, height - 1);
clockRadius = Math.min(width, height) - 20;
xCenter = getWidth() / 2;
yCenter = getHeight() / 2;
g.drawArc(10, 12, clockRadius, clockRadius, 0, 360);
g.drawString("12", xCenter, 0, Graphics.TOP | Graphics.HCENTER);
g.drawString("9", 1, yCenter, Graphics.BASELINE | Graphics.LEFT);
g.drawString("3", width - 1, yCenter, Graphics.BASELINE | Graphics.RIGHT);
g.drawString("6", xCenter, height, Graphics.BOTTOM | Graphics.RIGHT);
}
}
</source>
Graphics.LEFT
<source lang="java">
import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.Graphics; import javax.microedition.midlet.MIDlet; public class KeyEventsMIDlet extends MIDlet implements CommandListener {
private Command exitCommand;
Display display;
Displayable d;
public void startApp() {
Display display = Display.getDisplay(this);
d = new KeyEventsCanvas();
exitCommand = new Command("Exit", Command.EXIT, 1);
d.addCommand(exitCommand);
d.setCommandListener(this);
display.setCurrent(d);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
public void commandAction(Command c, Displayable s) {
notifyDestroyed();
}
} class KeyEventsCanvas extends Canvas {
int width = 0;
int height = 0;
String aMessage = "message";
public void paint(Graphics g) {
width = getWidth();
height = getHeight();
g.setGrayScale(255);
g.fillRect(0, 0, width - 1, height - 1);
g.setGrayScale(0);
g.drawRect(0, 0, width - 1, height - 1);
g.drawString(aMessage, 10, 10, Graphics.TOP | Graphics.LEFT);
}
protected void keyPressed(int keyCode) {
aMessage = getKeyName(keyCode);
if (aMessage.equals("2"))
aMessage = "2";
repaint();
}
}
</source>
Graphics: setClip(int x, int y, int width, int height)
<source lang="java">
import javax.microedition.lcdui.Alert; import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.Graphics; import javax.microedition.lcdui.Image; import javax.microedition.midlet.MIDlet; public class J2MEClippingRegion extends MIDlet {
private Display display;
private MyCanvas canvas;
public J2MEClippingRegion() {
display = Display.getDisplay(this);
canvas = new MyCanvas(this);
}
protected void startApp() {
display.setCurrent(canvas);
}
protected void pauseApp() {
}
protected void destroyApp(boolean unconditional) {
}
public void exitMIDlet() {
destroyApp(true);
notifyDestroyed();
}
class MyCanvas extends Canvas implements CommandListener {
private Command exit;
private J2MEClippingRegion clippingRegion;
private Image image = null;
public MyCanvas(J2MEClippingRegion clippingRegion) {
this.clippingRegion = clippingRegion;
exit = new Command("Exit", Command.EXIT, 1);
addCommand(exit);
setCommandListener(this);
try {
image = Image.createImage(70, 70);
Graphics graphics = image.getGraphics();
graphics.setColor(255, 0, 0);
graphics.fillArc(10, 10, 60, 50, 180, 180);
} catch (Exception error) {
Alert alert = new Alert("Failure", "Creating Image", null, null);
alert.setTimeout(Alert.FOREVER);
display.setCurrent(alert);
}
}
protected void paint(Graphics graphics) {
if (image != null) {
graphics.setColor(255, 255, 255);
graphics.fillRect(0, 0, getWidth(), getHeight());
graphics.setClip(35, 35, 40, 40);
graphics.drawImage(image, 30, 30, Graphics.VCENTER | Graphics.HCENTER);
}
}
public void commandAction(Command command, Displayable display) {
if (command == exit) {
clippingRegion.exitMIDlet();
}
}
}
}
</source>
Graphics: setColor(int RGB)
<source lang="java">
import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Graphics; import javax.microedition.midlet.MIDlet; public class SetColorGraphicsMIDlet extends MIDlet {
private Display display;
protected void startApp() {
Canvas canvas = new LineCanvas();
display = Display.getDisplay(this);
display.setCurrent(canvas);
}
protected void pauseApp() {
}
protected void destroyApp(boolean unconditional) {
}
} class LineCanvas extends Canvas {
public void paint(Graphics g) {
int width = getWidth();
int height = getHeight();
g.setColor(0xFFFF00);
g.drawLine(0, height / 4, width - 1, height / 4);
}
}
</source>
Graphics: setGrayScale(int value)
<source lang="java">
import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Graphics; import javax.microedition.midlet.MIDlet; public class SetGrayScaleGraphicsMIDlet extends MIDlet {
private Display display;
protected void startApp() {
Canvas canvas = new LineCanvas();
display = Display.getDisplay(this);
display.setCurrent(canvas);
}
protected void pauseApp() {
}
protected void destroyApp(boolean unconditional) {
}
} class LineCanvas extends Canvas {
public void paint(Graphics g) {
int width = getWidth();
int height = getHeight();
g.setColor(0);
g.setGrayScale(100);
g.drawLine(0, 2, width - 1, height / 2);
}
}
</source>
Graphics: setStrokeStyle(int style)
<source lang="java">
import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Graphics; import javax.microedition.midlet.MIDlet; public class SetStrokeStyleGraphicsMIDlet extends MIDlet {
private Display display;
protected void startApp() {
Canvas canvas = new LineCanvas();
display = Display.getDisplay(this);
display.setCurrent(canvas);
}
protected void pauseApp() {
}
protected void destroyApp(boolean unconditional) {
}
} class LineCanvas extends Canvas {
public void paint(Graphics g) {
int width = getWidth();
int height = getHeight();
g.setColor(0);
g.setStrokeStyle(Graphics.DOTTED);
g.drawLine(0, height / 2, width - 1, height / 2);
}
}
</source>
Graphics.SOLID
<source lang="java">
import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Graphics; import javax.microedition.midlet.MIDlet; public class DrawArcGraphicsMIDlet extends MIDlet {
private Display display;
protected void startApp() {
Canvas canvas = new LineCanvas();
display = Display.getDisplay(this);
display.setCurrent(canvas);
}
protected void pauseApp() {
}
protected void destroyApp(boolean unconditional) {
}
} class LineCanvas extends Canvas {
public void paint(Graphics g) {
int width = getWidth();
int height = getHeight();
g.setColor(0);
g.setStrokeStyle(Graphics.SOLID);
g.drawArc(0, 0, width/2, height/2, 0, 90);
}
}
</source>
Graphics.TOP
<source lang="java">
import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.Graphics; import javax.microedition.midlet.MIDlet; public class KeyEventsMIDlet extends MIDlet implements CommandListener {
private Command exitCommand;
Display display;
Displayable d;
public void startApp() {
Display display = Display.getDisplay(this);
d = new KeyEventsCanvas();
exitCommand = new Command("Exit", Command.EXIT, 1);
d.addCommand(exitCommand);
d.setCommandListener(this);
display.setCurrent(d);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
public void commandAction(Command c, Displayable s) {
notifyDestroyed();
}
} class KeyEventsCanvas extends Canvas {
int width = 0;
int height = 0;
String aMessage = "message";
public void paint(Graphics g) {
width = getWidth();
height = getHeight();
g.setGrayScale(255);
g.fillRect(0, 0, width - 1, height - 1);
g.setGrayScale(0);
g.drawRect(0, 0, width - 1, height - 1);
g.drawString(aMessage, 10, 10, Graphics.TOP | Graphics.LEFT);
}
protected void keyPressed(int keyCode) {
aMessage = getKeyName(keyCode);
if (aMessage.equals("2"))
aMessage = "2";
repaint();
}
}
</source>
Graphics: translate(int x, int y)
<source lang="java">
import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.rumand; import javax.microedition.lcdui.rumandListener; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Displayable; import javax.microedition.lcdui.Graphics; import javax.microedition.lcdui.Image; import javax.microedition.midlet.MIDlet; import javax.microedition.midlet.MIDletStateChangeException; public class DisplayBigImageTest extends MIDlet implements CommandListener {
private Display display;
private TestCanvas tc;
private Command leftCommand = new Command("Left", Command.SCREEN, 1);
private Command rightCommand = new Command("Right", Command.SCREEN, 1);
public DisplayBigImageTest() {
Image img = null;
try {
img = Image.createImage("/10.png");
} catch (Exception e) {
System.out.println(e.getMessage());
}
tc = new TestCanvas(img);
tc.addCommand(rightCommand);
tc.addCommand(leftCommand);
tc.setCommandListener(this);
display = Display.getDisplay(this);
}
public void startApp() throws MIDletStateChangeException {
display.setCurrent(tc);
}
public void pauseApp() {
}
public void destroyApp(boolean unconditional) {
}
public void commandAction(Command c, Displayable d) {
int stepX = tc.getWidth() / 4;
int stepY = tc.getHeight() / 4;
if (d == tc && c == leftCommand) {
tc.increaseXY(stepX, 0);
tc.repaint();
} else if (d == tc && c == rightCommand) {
tc.increaseXY(-stepX, 0);
tc.repaint();
}
}
class TestCanvas extends Canvas {
private Image img;
private int transX = 0;
private int transY = 0;
public TestCanvas(Image img) {
this.img = img;
transX = 0;
transY = 0;
}
public void increaseXY(int x, int y) {
transX += x;
transY += y;
}
public void paint(Graphics g) {
int width = this.getWidth();
int height = this.getHeight();
g.setGrayScale(255);
g.fillRect(0, 0, width - 1, height - 1);
g.setGrayScale(0);
g.drawRect(0, 0, width - 1, height - 1);
g.translate(transX, transY);
g.drawImage(img, 0, 0, g.TOP | g.LEFT);
}
}
}
</source>
Graphics.VCENTER
<source lang="java">
import java.io.IOException; import javax.microedition.lcdui.Canvas; import javax.microedition.lcdui.Display; import javax.microedition.lcdui.Graphics; import javax.microedition.lcdui.Image; import javax.microedition.midlet.MIDlet; public class ImageVerticalHorizontalGraphicsMIDlet extends MIDlet {
private Display display;
protected void startApp() {
Canvas canvas = new LineCanvas();
display = Display.getDisplay(this);
display.setCurrent(canvas);
}
protected void pauseApp() {
}
protected void destroyApp(boolean unconditional) {
}
} class LineCanvas extends Canvas {
public void paint(Graphics g) {
int width = getWidth();
int height = getHeight();
try {
Image image = Image.createImage("/h.png");
g.drawImage(image, width/2, height/2, Graphics.VCENTER | Graphics.HCENTER);
} catch (IOException ex) {
g.setColor(0xffffff);
g.drawString("Failed to load image!", 0, 0, Graphics.TOP | Graphics.LEFT);
return;
}
}
}
</source>
