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Align Text MIDlet Example

                         

With the help of the canvas class, we can draw as many as graphics we want in our application. Similarly we can also set the different alignment to the text. In this J2ME Midlet we are going to set the text at different locations such as right, left, top right and top left etc.. to set the alignment we have used "g.drawString();" and defined different values in it with the height and width within it.

Just find out the different methods that are used in this small j2me example..

  • int width = getWidth();     
  • int height = getHeight();       
  • g.setColor(0, 0, 255);     
  • g.fillRect(0, 0, width, height);     
  • g.setColor(255, 0, 0);    
  • g.drawString("TOP_LEFT", 0, 0, Graphics.TOP |  Graphics.LEFT);     
  • g.drawString("TOP_RIGHT", width, 0, Graphics. TOP | Graphics.RIGHT);     
  • g.drawString("BOTTOM_LEFT", 0, height,  Graphics.BOTTOM | Graphics.LEFT);     
  • g.drawString("BOTTOM_RIGHT", width, height,  Graphics.BOTTOM | Graphics.RIGHT);    
  • g.drawString("BASELINE_HCENTER", width / 2,  height / 2, Graphics.BASELINE | Graphics.HCENTER);

The Application is going to look like as follows:

Source Code of CornerText.java

import javax.microedition.lcdui.*;
import javax.microedition.midlet.*;
import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
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 CornerText extends MIDlet{

  private Display display;

  public void startApp(){
    Canvas canvas = new CanvasText();
    display = Display.getDisplay(this);
    display.setCurrent(canvas);
  }

  public void pauseApp(){}

  public void destroyApp(boolean unconditional){}
}

class CanvasText extends Canvas {
  public void paint(Graphics g) {
    int width = getWidth();
    int height = getHeight();
    
    g.setColor(00255);
    g.fillRect(00, width, height);
    g.setColor(25500);

    g.drawString("TOP_LEFT"00, Graphics.TOP |
           Graphics.LEFT);

    g.drawString("TOP_RIGHT", width, 0, Graphics.
           TOP | Graphics.RIGHT);

    g.drawString("BOTTOM_LEFT"0, height, 
           Graphics.BOTTOM | Graphics.LEFT);

    g.drawString("BOTTOM_RIGHT", width, height, 
           Graphics.BOTTOM | Graphics.RIGHT);


    g.drawString("BASELINE_HCENTER", width / 2
           height / 
2, Graphics.BASELINE | Graphics.HCENTER);
  }
}

Download Source Code

                         

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