j2me 实现打电话功能
此实例为本人原创的电话呼叫程序，用户输入号码进行拨号，由于本人一直是搞低级UI开发的，所以并没有用高级控件做输出体。
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框架代码1 - Constant
import javax.microedition.lcdui.Graphics;/**?* @author 空白节奏?* */public class Constant {public static final int SCR_WIDTH = 240;public static final int SCR_HEIGHT = 320;public static final int SCR_CENTERW = 120;public static final int SCR_CENTERH = 160;public static final byte FPS = 20;public static final String rms_name = "RMS_name";//走程状态public static int MIDLetState = 0;public static final int MIDLetState_LOGO = 1;public static final int MIDLetState_MENU = 2;public static final int KEY_UP = -1;public static final int KEY_DOWN = -2;public static final int KEY_LEFT = -3;public static final int KEY_RIGHT = -4;public static final int KEY_FIRE = -5;public static final int KEY_LSOFT = -6;public static final int KEY_RSOFT = -7;public static final int KEY_CLEAR = -8;public static final int KEY_SEND = -10;public static final int KEY_END = -11;public static final int KEY_ASTERISK = 42;// *public static final int KEY_POUND = 35;// #public static final int KEY_NUM0 = 48;public static final int KEY_NUM1 = 49;public static final int KEY_NUM2 = 50;public static final int KEY_NUM3 = 51;public static final int KEY_NUM4 = 52;public static final int KEY_NUM5 = 53;public static final int KEY_NUM6 = 54;public static final int KEY_NUM7 = 55;public static final int KEY_NUM8 = 56;public static final int KEY_NUM9 = 57;public static final int GLT = Graphics.LEFT | Graphics.TOP;public static final int GRT = Graphics.RIGHT | Graphics.TOP;public static final int GLB = Graphics.LEFT | Graphics.BOTTOM;public static final int GRB = Graphics.RIGHT | Graphics.BOTTOM;public static final int GTH = Graphics.TOP | Graphics.HCENTER;public static final int GBH = Graphics.BOTTOM | Graphics.HCENTER;public static final int GLV = Graphics.LEFT | Graphics.VCENTER;public static final int GRV = Graphics.RIGHT | Graphics.VCENTER;public static final int GHV = Graphics.HCENTER | Graphics.VCENTER;}?
框架代码2 - GameMIDlet
import javax.microedition.lcdui.Display;import javax.microedition.lcdui.Displayable;import javax.microedition.midlet.MIDlet;/**?* @author 空白节奏?* */public class GameMIDlet extends MIDlet {static GameMIDlet gameMIDlet = null;Displayable current = null;GameMaster gm = null;public GameMIDlet() {gameMIDlet = this;}protected void startApp(){current = Display.getDisplay(this).getCurrent();if(current == null){gm = new GameMaster(this);Display.getDisplay(this).setCurrent(gm);}else{Display.getDisplay(this).setCurrent(current);}}protected void pauseApp() {}protected void destroyApp(boolean arg0){}public static void quitApp(){gameMIDlet.destroyApp(true);gameMIDlet.notifyDestroyed();gameMIDlet = null;}}?
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框架代码3 - GameMaster
import javax.microedition.lcdui.Canvas;import javax.microedition.lcdui.Graphics;import javax.microedition.lcdui.Image;/**?* @author 空白节奏?* */public class GameMaster extends Canvas implements Runnable{private boolean isStart = false;private Image img_buffer = null;private Graphics gg;private boolean isFullScreen = true;call c = null;GameMIDlet gml = null;public GameMaster(GameMIDlet gml){this.gml = gml;init();setFullScreenMode(isFullScreen);isStart = true;new Thread(this).start();}public void paint(Graphics g){gg.setColor(0);gg.setClip(0, 0, Constant.SCR_WIDTH, Constant.SCR_HEIGHT);gg.fillRect(0, 0, Constant.SCR_WIDTH, Constant.SCR_HEIGHT);c.paint(gg);g.drawImage(img_buffer, 0, 0, Constant.GLT);}public void update(){c.updata();}public void keyPressed(int keyCode){}public void keyReleased(int keyCode){}public void pointerPressed(int x, int y){c.pointerPressed(x, y, gml);}public void init(){c = new call();img_buffer = Image.createImage(Constant.SCR_WIDTH, Constant.SCR_HEIGHT);gg = img_buffer.getGraphics();}long startTime = 0;long timeTaken = 0;public void run(){while (isStart){startTime = System.currentTimeMillis();update();repaint();timeTaken = System.currentTimeMillis() - startTime;if(timeTaken < 1000 / Constant.FPS){try{Thread.sleep(1000 / Constant.FPS - timeTaken);}catch(Exception e){e.printStackTrace();}}}}}?
逻辑代码 - call
import java.util.Vector;import javax.microedition.io.ConnectionNotFoundException;import javax.microedition.lcdui.Graphics;/**?* @author 空白节奏?* */public class call{callButten[] cb = null;Vector v = new Vector(0, 1);String stError = "";public call(){init();}public void init(){cb = new callButten[13];for(int i = 0; i < 3; i++){for(int j = 0; j < 3; j++){cb[(i*3)+j] = new callButten(1+(i*3)+j+"", 20+(j*40), 30+(i*50), 30, 30, -1, 0);}}cb[9] = new callButten("0", 150, 130, 30, 30, -1, 0);cb[10] = new callButten("拨打", 150, 30, 60, 30, -1, 0);cb[11] = new callButten("清除", 150, 80, 60, 30, -1, 0);cb[12] = new callButten("退出", 20, 220, 180, 30, -1, 0);}public void paint(Graphics g){for(int i = 0; i < cb.length; i++){cb[i].paint(g);}g.setColor(-1);g.fillRect(20, 180, 180, 30);if(v.size() > 0){g.setColor(0);for(int i = 0; i < v.size(); i++){g.drawString(v.elementAt(i).toString(), 22+(i*8), 182, 20);}}g.setColor(255,0,0);g.drawString(stError, 10, 20, 20);}public void updata(){}public void pointerPressed(int x, int y, GameMIDlet gm){for(int i = 0; i < cb.length; i++){if(x > cb[i].x && x < (cb[i].x + cb[i].width) && y > cb[i].y && y < (cb[i].y + cb[i].hight)){if(i < 10){v.addElement(cb[i].num);}else if(i == 10){callplat(gm);}else if(i == 11){if(v.size() > 0)v.removeElementAt(v.size()-1);}else if(i == 12){gm.quitApp();}}}}public void callplat(GameMIDlet gm){String stURL = "";for(int i=0; i<v.size(); i++){stURL += v.elementAt(i).toString();}try {if(!stURL.equals("")){gm.platformRequest("tel:"+stURL);}} catch (ConnectionNotFoundException e) {stError = e.getMessage();}}}class callButten{String num;int x, y, width, hight;int bgColor, strColor;callButten(){}callButten(String num, int x, int y, int width, int hight, int bgColor, int strColor){this.num = num;this.x = x;this.y = y;this.width = width;this.hight = hight;this.bgColor = bgColor;this.strColor = strColor;}void paint(Graphics g){g.setColor(bgColor);g.fillRect(x, y, width, hight);g.setColor(strColor);g.drawString(num, x+(width>>1)-5, y+(hight>>1)-5, 20);}}?
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实现了J2ME的打电话功能，需要MIDP2.0支持，需注意的是，有些机器不支持platformRequest方法，比如我的E680G就不支持，并且API对此方法的描述也是雷人，- - 大概意思是“此方法应该能够拨打指定电话号码”，应该二字很雷人。
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转载请声明出处。?
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附件1就是此程序实例。
附件2是jar。
1 楼 googya 2010-04-28 啪啪啪一段代码！有点说明是否更好？！ 2 楼 zovikoo 2010-04-30 googya 写道啪啪啪一段代码！有点说明是否更好？！