一些常用的方法工具类

来源：互联网发布：天下3男神捏脸数据编辑：程序博客网时间：2024/05/16 06:41
自己写的一些常用的方法，可以封装成一个类，记录下来
package com.todayhead.utils;import java.math.BigDecimal;import java.text.DecimalFormat;import java.text.NumberFormat;import java.text.SimpleDateFormat;import java.util.Calendar;import java.util.Date;import java.util.Locale;import java.util.regex.Matcher;import java.util.regex.Pattern;import android.content.Context;import android.content.Intent;import android.net.ConnectivityManager;import android.net.NetworkInfo;import android.net.Uri;import android.text.TextUtils;import android.util.Log;import android.widget.EditText;/** * 1.判断是否联网 * 2.验证邮箱地址是否正确 * 3.判断身份证号码 * 4.获取保留的小数位数 * 5.根据日期获得星期 * 6.判断是正整数还是小数 * 7.验证账户 * 8.验证手机号码 * 9.电话号码验证 * 10.检测密码 * 11.判断网络连接 * 12.验证邮政编码 * 13.打电话 * 14.检验是否存在非法字符 * 15.EditText竖直方向是否可以滚动 * 16.获取当月的 天数 * 17.根据年 月 获取对应的月份 天数 * 18.根据日期 找到对应日期的 星期 * 19.设置时间格式 * 20.设置时间格式，转成成时间搓 * 21.传入时间搓输出时间类型 * 22.获取当前年月日 * 23.获取当前年月 */public class MyUtil {   /** 判断是否联网 */   public static boolean isNetWork(Context context) {      boolean isNetWork = false;      ConnectivityManager cwjManager = (ConnectivityManager) context            .getSystemService(Context.CONNECTIVITY_SERVICE);      NetworkInfo info = cwjManager.getActiveNetworkInfo();      if (info != null && info.isAvailable()) {         isNetWork = true;      } else {         isNetWork = false;      }      return isNetWork;   }   /**    * 验证邮箱地址是否正确    * @param email    * @return    */   public static boolean checkEmail(String email) {      boolean flag = false;      try {         String check = "^([a-z0-9A-Z]+[_-|\\.]?)+[a-z0-9A-Z]@([a-z0-9A-Z]+(-[a-z0-9A-Z]+)?\\.)+[a-zA-Z]{2,}$";         Pattern regex = Pattern.compile(check);         Matcher matcher = regex.matcher(email);         flag = matcher.matches();      } catch (Exception e) {         flag = false;      }      return flag;   }      /**    * 判断身份证号码    * @param str    * @return    */   public static boolean checkPersonID(String str){      String isIDCard1="^[1-9]\\d{7}((0\\d)|(1[0-2]))(([0|1|2]\\d)|3[0-1])\\d{3}$";//判断15位身份证号码      String isIDCard2="^[1-9]\\d{5}[1-9]\\d{3}((0\\d)|(1[0-2]))(([0|1|2]\\d)|3[0-1])\\d{3}([0-9]|X|x)$";//判断18位身份证号码      return str.matches(isIDCard1) || str.matches(isIDCard2);   }   /**    * 获取保留的小数位数    * @param str    * @return    *   String str="86.64466666";    *   86.64=86.64=86.64=86.64      */   public static String getBigDecimal(String str){           BigDecimal bd = new BigDecimal(Double.parseDouble(str));             System.out.println(bd.setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue());             System.out.println("=================");              DecimalFormat df = new DecimalFormat("#.00");               System.out.println(df.format(Double.parseDouble(str)));               System.out.println("=================");              System.out.println(String.format("%.2f", Double.parseDouble(str)));              System.out.println("=================");              NumberFormat nf = NumberFormat.getNumberInstance();               nf.setMaximumFractionDigits(2);               System.out.println(nf.format(Double.parseDouble(str)));         return bd.setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue()+"";      }   /**      * 根据日期获得星期      * @param date      * @return      */    public static String getWeekOfDate(Date date) {      String[] weekDaysName = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五",            "星期六" };      String[] weekDaysCode = { "0", "1", "2", "3", "4", "5", "6" };      Calendar calendar = Calendar.getInstance();      calendar.setTime(date);      int intWeek = calendar.get(Calendar.DAY_OF_WEEK) - 1;      return weekDaysName[intWeek];   }      /**    * 判断是正整数还是小数    * @param str    * @return    */   public static boolean isNum(String str){      String num = "^([0-9]*)([.]?)([0-9]+)";      String num1 = "^[-+]?(([0-9]+)([.]([0-9]+))?|([.]([0-9]+))?)$";       return str.matches(num);   }    /**     * 验证账户     * @param account     * @return     */   public static boolean checkAccount(String account) {      boolean flag = false;      try {         String check = "^[a-zA-Z0-9@.]{1,24}+$";         Pattern p = Pattern.compile(check);         Matcher m = p.matcher(account);         flag = m.matches();      } catch (Exception e) {         flag = false;      }      return flag;   }      /**    * 验证手机号码    * @param mobiles    * @return    */   public static boolean isMobileNO(String mobiles) {      boolean flag = false;      try {         Pattern p = Pattern.compile("^(1)\\d{10}$");         Matcher m = p.matcher(mobiles);         flag = m.matches();      } catch (Exception e) {         flag = false;      }      return flag;   }   /**      * 电话号码验证      *       * @param  str      * @return 验证通过返回true      */      public static boolean isPhone(String str) {           Pattern p1 = null,p2 = null;          Matcher m = null;          boolean b = false;            p1 = Pattern.compile("^[0][1-9]{2,3}-[0-9]{5,10}$");  // 验证带区号的          p2 = Pattern.compile("^[1-9]{1}[0-9]{5,8}$");         // 验证没有区号的          if(str.length() >9)          {   m = p1.matcher(str);              b = m.matches();            }else{              m = p2.matcher(str);              b = m.matches();           }            return b;      }     /**    * 检测密码    *     * @param pwd    * @return    */   public static boolean checkPwd(String pwd) {      boolean flag = false;      try {         String check = "^[a-zA-Z0-9]{6,20}+$";         Pattern regex = Pattern.compile(check);         Matcher matcher = regex.matcher(pwd);         flag = matcher.matches();      } catch (Exception e) {         flag = false;      }      return flag;   }      /**    * 判断网络连接    * @param context    * @return    */   public static boolean isNetworkAvailable(Context context) {           ConnectivityManager cm = (ConnectivityManager) context                   .getSystemService(Context.CONNECTIVITY_SERVICE);           if (cm == null) {           } else {            NetworkInfo[] info = cm.getAllNetworkInfo();               if (info != null) {                   for (int i = 0; i < info.length; i++) {                       if (info[i].isAvailable()&&info[i].getState() == NetworkInfo.State.CONNECTED) {                         return true;                       }                   }               }           }           return false;       }    //验证邮政编码    public static boolean checkPost(String post){          if(post.matches("[1-9]\\d{5}(?!\\d)")){              return true;         }else{              return false;          }      }          /**     * 打电话     * @param context     * @param tel     */    public static void callPhone(Context context, String tel) {      if (TextUtils.isEmpty(tel)) {         tel = "";      }      Intent intent = new Intent(Intent.ACTION_DIAL, Uri.parse("tel:" + tel));      context.startActivity(intent);   }   /**    * 检验是否存在非法字符    */    public static boolean IllegalChar(String args) {        if(args.matches("[a-zA-Z0-9_\u4e00-\u9fa5]*")){           //不是非法字符            return false;        }        return true;    }        /**      * EditText竖直方向是否可以滚动      * @param editText 需要判断的EditText      * @return true：可以滚动  false：不可以滚动      */     public static boolean canVerticalScroll(EditText editText) {       //滚动的距离       int scrollY = editText.getScrollY();       //控件内容的总高度       int scrollRange = editText.getLayout().getHeight();       //控件实际显示的高度       int scrollExtent = editText.getHeight() - editText.getCompoundPaddingTop() -editText.getCompoundPaddingBottom();       //控件内容总高度与实际显示高度的差值       int scrollDifference = scrollRange - scrollExtent;           if(scrollDifference == 0) {         return false;       }           return (scrollY > 0) || (scrollY < scrollDifference - 1);     }            /**      * 获取当月的 天数      * */      public static int getCurrentMonthDay() {                    Calendar a = Calendar.getInstance();          a.set(Calendar.DATE, 1);          a.roll(Calendar.DATE, -1);          int maxDate = a.get(Calendar.DATE);          return maxDate;      }        /**      * 根据年 月 获取对应的月份 天数      * */      public static int getDaysByYearMonth(int year, int month) {                    Calendar a = Calendar.getInstance();          a.set(Calendar.YEAR, year);          a.set(Calendar.MONTH, month - 1);          a.set(Calendar.DATE, 1);          a.roll(Calendar.DATE, -1);          int maxDate = a.get(Calendar.DATE);          return maxDate;      }            /**      * 根据日期 找到对应日期的 星期      */      public static String getDayOfWeekByDate(String date) {          String dayOfweek = "-1";          try {              SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd");                         Date myDate = myFormatter.parse(date);              SimpleDateFormat formatter = new SimpleDateFormat("E");              String str = formatter.format(myDate);              dayOfweek = str;                        } catch (Exception e) {              System.out.println("错误!");          }          return dayOfweek;      }     /**     *设置时间格式     */    public static String getDateType(String date) {          String retu=null;        try {              SimpleDateFormat myFormatter = new SimpleDateFormat("yyyy-MM-dd");                         Date myDate = myFormatter.parse(date);             retu=myFormatter.format(myDate);              return retu;        } catch (Exception e) {              System.out.println("错误!");          }          return retu;      }     /**     *设置时间格式     */    public static String getDateType(String date,String type) {          String retu=null;        try {              SimpleDateFormat myFormatter = new SimpleDateFormat(type);                         Date myDate = myFormatter.parse(date);             retu=myFormatter.format(myDate);              return retu;        } catch (Exception e) {              System.out.println("错误!");          }          return retu;      }     /**     *设置时间格式，转成成时间搓     */    public static Long getDateTime(String date,String type) {          Long retu=null;        try {              SimpleDateFormat myFormatter = new SimpleDateFormat(type);                         Date myDate = myFormatter.parse(date);             retu=myDate.getTime();              return retu;        } catch (Exception e) {              System.out.println("错误!");          }          return retu;      }     /**     * 传入时间搓输出时间类型     * 调用此方法输入所要转换的时间戳输入例如（1402733340）输出（"2014年06月14日16时09分"）     * @param time     * @param type     * @return     */    public static String SetTimeType(String time,String type){           String retu=null;       String date2=null;       try {                      Log.i("type", type);          if(type.substring(0, 2).equals("hh")){           date2= new SimpleDateFormat("HH:mm").format(new Date(Long.parseLong(time)));          }else{              date2= new SimpleDateFormat(type).format(new Date(Long.parseLong(time)));          }           Date date=new Date(Long.valueOf(time));            SimpleDateFormat myFormatter = new SimpleDateFormat(type);                         retu=myFormatter.format(date);           Log.i("retu", retu);           return date2;                } catch (Exception e) {              System.out.println("错误!");          }          return retu;      }    /*     * 获取当前年月日     */   public static String  getCurDate(){            Calendar c=Calendar.getInstance(Locale.CHINA);      int year=c.get(Calendar.YEAR);      int month=c.get(Calendar.MONTH);      int day=c.get(Calendar.DAY_OF_MONTH);      return year+"-"+(month+1)+"-"+day;    }   /*    * 获取当前年月    * 2016年9月    */  public static String  getCurYearMonth(){            Calendar c=Calendar.getInstance(Locale.CHINA);      int year=c.get(Calendar.YEAR);      int month=c.get(Calendar.MONTH);      int day=c.get(Calendar.DAY_OF_MONTH);      return year+"年"+(month+1)+"月";   }  /*   * 获取当前年月   * 2016-9   */  public static String  getCurYearMonthadd(){            Calendar c=Calendar.getInstance(Locale.CHINA);      int year=c.get(Calendar.YEAR);      int month=c.get(Calendar.MONTH);      int day=c.get(Calendar.DAY_OF_MONTH);      return year+"-"+(month+1);  }}
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