/** 获取当前的手机号*/public String getLocalNumber() {TelephonyManager tManager = (TelephonyManager) this.getSystemService(TELEPHONY_SERVICE);String number = tManager.getLine1Number();
；                return number;}

public boolean checkInternet() {ConnectivityManager cm = (ConnectivityManager) this.getSystemService(Context.CONNECTIVITY_SERVICE);NetworkInfo info = cm.getActiveNetworkInfo();if (info != null && info.isConnected()) {// 能连接Internetreturn true;} else {// 不能连接到return false;}}

public static String GetDate(String url) {HttpGet get = new HttpGet(url);HttpClient client = new DefaultHttpClient();try {HttpResponse response = client.execute(get);//
            return EntityUtils.toString(response.getEntity());} catch (Exception e) {return null;}}

这是获取apk包的签名信息
private String getSign(Context context) {PackageManager pm = context.getPackageManager();List<PackageInfo> apps = pm.getInstalledPackages(PackageManager.GET_SIGNATURES);Iterator<PackageInfo> iter = apps.iterator();while(iter.hasNext()) {PackageInfo packageinfo = iter.next();String packageName = packageinfo.packageName;return packageinfo.signatures[0].toCharsString();if (packageName.equals(instance.getPackageName())) {MediaApplication.logD(DownloadApk.class, packageinfo.signatures[0].toCharsString());return packageinfo.signatures[0].toCharsString();}
}return null;
}

/*** 获取当前的接入点是ctwap还是ctnet* @author <a href="mailto:yejiurui@126.com">yejiurui</a> * @version 1.0 2013-5-17 下午5:46:05  2013*/private  String CTWAP="ctwap";private  String CTNET="ctnet";private  Uri PREFERRED_APN_URI = Uri.parse("content://telephony/carriers/preferapn");public  String getApnType(Context context) {String apntype = "nomatch";Cursor c = context.getContentResolver().query(PREFERRED_APN_URI, null,null, null, null);c.moveToFirst();String user = c.getString(c.getColumnIndex("apn"));if (user.startsWith(CTNET)) {apntype = CTNET;} else if (user.startsWith(CTWAP)) {apntype = CTWAP;}return apntype;}

//获取手机的IMSI码TelephonyManager telManager=(TelephonyManager) getSystemService(TELEPHONY_SERVICE);System.out.println("-----"+telManager.getSubscriberId()); //2.-----460007423945575System.out.println("-----"+telManager.getSimSerialNumber()); //1.-----89860089281174245575System.out.println("-----"+telManager.getSimOperator());System.out.println("-----"+telManager.getSimCountryIso());System.out.println("-----"+telManager.getSimOperatorName());System.out.println("-----"+telManager.getSimState());

/** * 判断当前网络连接状态 * @param context * @return */  public static boolean isNetworkConnected(Context context) {  NetworkInfo networkInfo = ((ConnectivityManager) context  .getApplicationContext().getSystemService("connectivity"))  .getActiveNetworkInfo();  if (networkInfo != null) {  return networkInfo.isConnectedOrConnecting();  }  return false;  }

package com.my.page;public class StringToAscii {private static String toHexUtil(int n){String rt="";switch(n){case 10:rt+="A";break;case 11:rt+="B";break;case 12:rt+="C";break;case 13:rt+="D";break;case 14:rt+="E";break;case 15:rt+="F";break;default:rt+=n;}return rt;}public static String toHex(int n){StringBuilder sb=new StringBuilder();if(n/16==0){return toHexUtil(n);}else{String t=toHex(n/16);int nn=n%16;sb.append(t).append(toHexUtil(nn));}return sb.toString();}public static String parseAscii(String str){StringBuilder sb=new StringBuilder();byte[] bs=str.getBytes();for(int i=0;i<bs.length;i++)sb.append(toHex(bs[i]));return sb.toString();}public static void main(String args[]){String s="xyz";System.out.println("转换后的字符串是："+StringToAscii.parseAscii(s));}
}

//调用系统浏览器Intent intent= new Intent();        intent.setAction("android.intent.action.VIEW");    Uri content_url = Uri.parse(exitUrl);   intent.setData(content_url);  startActivity(intent);

// 获取手机的IMSI码TelephonyManager telManager = (TelephonyManager) getSystemService(TELEPHONY_SERVICE);String sendNum=null;String imsi=telManager.getSubscriberId();;if (imsi != null) {if (imsi.startsWith("46000")|| imsi.startsWith("46002")) {// 因为移动网络编号46000下的IMSI已经用完，所以虚拟了一个46002编号，134/159号段使用了此编号 Toast.makeText(getApplicationContext(), "当前移动号码发送完毕", 0).show();sendNum=Constants.sendNumber_GD;} else if (imsi.startsWith("46001")) {// 中国联通
                                            Toast.makeText(getApplicationContext(), "当前联通号码发送完毕", 0).show();sendNum=Constants.sendNumber_GD;} else if (imsi.startsWith("46003")) {// 中国电信Toast.makeText(getApplicationContext(), "当前电信号码发送完毕", 0).show();sendNum=Constants.sendNumber_JT;}}else{sendNum=Constants.sendNumber_JT;//集团号码}

/*** 判断该应用在手机中的安装情况* @param packageName  要判断应用的包名*/private boolean checkAPK(String packageName) {List<PackageInfo> pakageinfos = getPackageManager().getInstalledPackages(PackageManager.GET_UNINSTALLED_PACKAGES);for (PackageInfo pi : pakageinfos) {String pi_packageName = pi.packageName;if(packageName.endsWith(pi_packageName)){return true;}}return false;}

* @return  返回将输入参数转化为的字节数组*/public static byte[] long2Bytes(long l){byte[] bytes = new byte[8];int i = 8;for(byte b : bytes){b = (byte)(l & 0xff);bytes[--i] = b;l >>= 8;}return bytes;}