http://www.3geye.net/?uid-3-action-viewspace-itemid-265
前阵子看到，有J2me的朋友对真机做了一个比较详细的代码，我重新整理了下，补全了一些参数。不敢独享，现在与大家分享下，体验下开发的快乐
package com.ucfly.jsrdemo;
import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Font;
import javax.microedition.lcdui.Graphics;
import javax.microedition.media.Manager;
import javax.microedition.midlet.MIDlet;
/**
*
*
标题:JSRDemoForm类，程序的显示窗口
*
描述:手机支持测试.这个类处理的逻辑太多了，不适合
*
在适当的适合，应该采用mvc的结构，Form只管自己绘制UI，逻辑应该放到另外一个类去实现
*
作者:fox
*
*/
public class JSRDemoForm extends Canvas {
private static final int MENU = 0;
private static final int MAIN = 1;
private static final int KEY = 2;
private static final int ABOUT = 3;
private int state;
private int key;
private String ;
private String ;
private boolean too = true;
private int width;
private int height;
private JSRDemoMIDlet midlet;
private int sumHeight;
private static String[] menu_text = {
"主要信息与JSR支持",
"键值测试",
"退出程序"
};
private int point = 0;
private int count = 0;
private int x = 0; //绘画坐标
private int y = 0;
private long total = 0;
private long free = Runtime.getRuntime().freeMemory();
private Font big = Font.getFont(Font.FACE_SYSTEM, Font.STYLE_PLAIN,
Font.SIZE_LARGE);
private Font normal = Font.getFont(Font.FACE_SYSTEM, Font.STYLE_PLAIN,
Font.SIZE_MEDIUM);
private Font small = Font.getFont(Font.FACE_SYSTEM, Font.STYLE_PLAIN,
Font.SIZE_SMALL);
private String platform;
private String encoding;
private String locale;
private String m3g;
private String ;
private String ;
private String mmapi;
private String pim;
private String bluetooth;
private String fileConnection;
private String sip;
private String location;
private String jtwi;
private String jsr177;
/**
* 构造函数
*
*/
public JSRDemoForm(JSRDemoMIDlet midlet) {
this.midlet = midlet;
this.init();
this.getSystemInfo();
}
//重构初始化
private void init() {
cldc = System.getProperty("microedition.configuration");
//userAgent = System.getProperty("microedition.platform");
midp = System.getProperty("microedition.profiles");
setFullScreenMode(true);
too = true;
state = MENU;
this.width = this.getWidth();
this.height = this.getHeight();
}
protected void paint(Graphics g) {
clean(g, width, height);
switch (state) {
case MENU:
paintMenu(g);
break;
case KEY:
piantKeyInfo(g);
break;
case MAIN:
paintSystemInfo(g);
break;
}
}
//绘制
private void paintMenu(Graphics g) {
if (!too) {
g.setColor(0x00FF00);
g.drawString("MIDP1.0的手机,", 0, 0, Graphics.LEFT | Graphics.TOP);
g.drawString("不支持后面的测", 0, 20, Graphics.LEFT | Graphics.TOP);
g.drawString("试,按任意键退出", 0, 40, Graphics.LEFT | Graphics.TOP);
} else {
width = getWidth();
height = getHeight();
g.setColor(0xFFFFFF);
if (count % 2 == 0) {
g.fillTriangle(width / 2, height / 2 – 30, width / 2 – 5,
height / 2 – 20, width / 2 + 5, height / 2 – 20);
g.fillTriangle(width / 2, height / 2 + 30, width / 2 – 5,
height / 2 + 20, width / 2 + 5, height / 2 + 20);
} else {
g.fillTriangle(width / 2, height / 2 – 30, width / 2 – 3,
height / 2 – 20, width / 2 + 3, height / 2 – 20);
g.fillTriangle(width / 2, height / 2 + 30, width / 2 – 3,
height / 2 + 20, width / 2 + 3, height / 2 + 20);
}
g.setColor(0x00FF00);
g.drawString(menu_text[point], width / 2, height / 2 – 7,
Graphics.HCENTER | Graphics.TOP);
g.drawString("按2,5,8键", width / 2, height,
Graphics.HCENTER | Graphics.BOTTOM);
}
}
//绘制key信息
private void piantKeyInfo(Graphics g) {
g.setColor(0xFFFFFF);
g.drawString("键值是:", width / 2, height / 2 – 20,
Graphics.HCENTER | Graphics.TOP);
g.setColor(0x00FF00);
g.drawString("" + key, width / 2, height / 2,
Graphics.HCENTER | Graphics.TOP);
g.drawString("按5键退出", width / 2, height,
Graphics.HCENTER | Graphics.BOTTOM);
}
/**获取系统值，因为系统性能问题，所以一开始就载入
*
*/
private void getSystemInfo() {
total = Runtime.getRuntime().totalMemory();
free = Runtime.getRuntime().freeMemory();
big = Font.getFont(Font.FACE_SYSTEM, Font.STYLE_PLAIN,
Font.SIZE_LARGE);
normal = Font.getFont(Font.FACE_SYSTEM, Font.STYLE_PLAIN,
Font.SIZE_MEDIUM);
small = Font.getFont(Font.FACE_SYSTEM, Font.STYLE_PLAIN,
Font.SIZE_SMALL);
platform = System.getProperty("microedition.platform");
encoding = System.getProperty("microedition.encoding");
locale = System.getProperty("microedition.locale");
m3g = System.getProperty("microedition.m3g.version");
m3g = m3g == null ? "false" : m3g;
sms = System.getProperty(".messaging.sms.smsc");
sms = sms == null ? "false" : sms;
mms = System.getProperty("wireless.messaging.mms.mmsc");
mms = mms == null ? "false" : mms;
mmapi = System.getProperty("microedition.media.version");
mmapi = mmapi == null ? "false" : mmapi;
pim = System.getProperty("microedition.pim.version");
pim = pim == null ? "false" : pim;
bluetooth = System.getProperty("bluetooth.api.version");
bluetooth = bluetooth == null ? "false" : bluetooth;
fileConnection = System.getProperty(
"microedition.io.file.FileConnection.version");
fileConnection = fileConnection == null ? "false" : fileConnection;
sip = System.getProperty("microedition.sip.version");
sip = sip == null ? "false" : sip;
location = System.getProperty("microedition.location.version");
location = location == null ? "false" : location;
jtwi = System.getProperty("microedition.jtwi.version");
jtwi = jtwi == null ? "false" : jtwi;
jsr177 = System.getProperty("microedition.smartcardslots");
jsr177 = jsr177 == null ? "false" : jsr177;
}
//绘制并获取JSR支持以及其他相关信息
private void paintSystemInfo(Graphics g) {
g.setClip(0, 0, width, height – 20);
//内存
g.setColor(0x00FF00);
g.drawString(">>>", x, y, Graphics.LEFT | Graphics.TOP);
g.setColor(0xFFFFFF);
g.drawString("总共内存:" + total, x, y + 20, Graphics.LEFT | Graphics.TOP);
g.drawString("可用内存:" + free, x, y + 40, Graphics.LEFT | Graphics.TOP);
//屏幕
g.setColor(0x00FF00);
g.drawString(">>>", x, y + 60, Graphics.LEFT | Graphics.TOP);
g.setColor(0xFFFFFF);
g.drawString("屏幕宽:" + width, x, y + 80, Graphics.LEFT | Graphics.TOP);
g.drawString("屏幕高:" + height, x, y + 100, Graphics.LEFT | Graphics.TOP);
//字体:
g.setColor(0x00FF00);
g.drawString(">>>", x, y + 120, Graphics.LEFT | Graphics.TOP);
g.setColor(0xFFFFFF);
int fontw = big.stringWidth("国");
int fonth = big.getHeight();
g.drawString("大字体(宽&高):" + fontw + "&" + fonth, x, y + 140,
Graphics.LEFT | Graphics.TOP);
fontw = normal.stringWidth("国");
fonth = normal.getHeight();
g.drawString("中字体(宽&高):" + fontw + "&" + fonth, x, y + 160,
Graphics.LEFT | Graphics.TOP);
fontw = small.stringWidth("国");
fonth = small.getHeight();
g.drawString("小字体(宽&高):" + fontw + "&" + fonth, x, y + 180,
Graphics.LEFT | Graphics.TOP);
//系统属性
g.setColor(0x00FF00);
g.drawString(">>>", x, y + 200, Graphics.LEFT | Graphics.TOP);
g.setColor(0xFFFFFF);
g.drawString("CLDC:" + cldc, x, y + 220, Graphics.LEFT | Graphics.TOP);
g.drawString("MIDP:" + midp, x, y + 240, Graphics.LEFT | Graphics.TOP);
g.drawString("平台:" + platform, x, y + 260, Graphics.LEFT | Graphics.TOP);
g.drawString("编码:" + encoding, x, y + 280, Graphics.LEFT | Graphics.TOP);
g.drawString("地区:" + locale, x, y + 300, Graphics.LEFT | Graphics.TOP);
g.drawString("3D:" + m3g, x, y + 320, Graphics.LEFT | Graphics.TOP);
g.drawString("WMA SMS:" + sms, x, y + 340,
Graphics.LEFT | Graphics.TOP);
g.drawString("WMA MMS:" + mms, x, y + 360, Graphics.LEFT | Graphics.TOP);
g.drawString("MMAPI:" + mmapi, x, y + 380, Graphics.LEFT | Graphics.TOP);
g.drawString("PIM:" + pim, x, y + 400, Graphics.LEFT | Graphics.TOP);
g.drawString("BlueTooth:" + bluetooth, x, y + 420,
Graphics.LEFT | Graphics.TOP);
g.drawString("FileConnection:" + fileConnection, x, y + 440,
Graphics.LEFT | Graphics.TOP);
g.drawString("SIP:" + sip, x, y + 460, Graphics.LEFT | Graphics.TOP);
g.drawString("LOCATION:" + location, x, y + 480,
Graphics.LEFT | Graphics.TOP);
g.drawString("JTWI:" + jtwi, x, y + 500, Graphics.LEFT | Graphics.TOP);
String ch = System.getProperty("CHAPI-Version");
ch = ch == null ? "false" : ch;
g.drawString("CHAPI-JSR-211:" + ch, x, y + 520,
Graphics.LEFT | Graphics.TOP);
g.drawString("JSR-177:" + jsr177, x, y + 540,
Graphics.LEFT | Graphics.TOP);
//媒体格式
g.setColor(0x00FF00);
g.drawString(">>>", x, y + 560, Graphics.LEFT | Graphics.TOP);
g.setColor(0xFFFFFF);
String[] mime = Manager.getSupportedContentTypes(null);
g.drawString("支持的媒体格式:", x, y + 580, Graphics.LEFT | Graphics.TOP);
this.sumHeight = 600;
for (int i = 0; i < mime.length; i++) {
this.sumHeight = this.sumHeight + 20;
g.drawString(mime[i], x, y + 600 + i * 20,
Graphics.LEFT | Graphics.TOP);
}
g.setClip(0, 0, width, height);
g.setColor(0x00FF00);
g.drawString("按2,4,5,6,8键", width / 2, height,
Graphics.HCENTER | Graphics.BOTTOM);
}
private void clean(Graphics g, int width, int height) {
g.setColor(0x000000);
g.fillRect(0, 0, width, height);
}
public void keyPressed(int keyCode) {
switch (state) {
case MENU:
if (!too) {
midlet.Exit();
} else {
actionMenu(keyCode);
}
break;
case KEY:
key = keyCode;
if (key == KEY_NUM5) {
state = MENU;
}
break;
case MAIN:
actionMain(keyCode);
break;
case ABOUT:
if (keyCode == KEY_NUM5) {
state = MENU;
}
break;
}
repaint();
}
private void actionMenu(int keyCode) {
switch (keyCode) {
case KEY_NUM8:
if (point > 0) {
point–;
} else {
point = menu_text.length – 1;
}
break;
case KEY_NUM2:
if (point < menu_text.length – 1) {
point++;
} else {
point = 0;
}
break;
case KEY_NUM5:
if (point == menu_text.length – 1) {
midlet.Exit();
} else {
state = point + 1;
}
break;
}
}
private void actionMain(int keyCode) {
switch (keyCode) {
case KEY_NUM2:
if(y<=-20)
y += 20;
break;
case KEY_NUM8:
if(-y<=(this.sumHeight – this.height+20))
y -= 20;
break;
case KEY_NUM4:
x -= 20;
break;
case KEY_NUM6:
x += 20;
break;
case KEY_NUM5:
state = MENU;
break;
}
}
protected void sizeChanged(int w, int h) {
if (h > this.height) {
this.height = h;
}
}
}