android 工具类2
package com.hz2hs.utils;import java.io.File;import java.text.DecimalFormat;import java.text.SimpleDateFormat;import com.hz2hs.constant.Constant;import android.app.Activity;import android.content.Context;import android.content.SharedPreferences;import android.net.ConnectivityManager;import android.net.NetworkInfo;import android.net.NetworkInfo.State;import android.net.TrafficStats;import android.os.Environment;import android.os.StatFs;public class Util {/** * * getCurrentTime:获取系统当前时间 * * @author zuyp * @version * @since Ver 1.1 * @Date 2013 2013-4-3 上午11:30:05 * @param @return * @return String * @throws */public static String getCurrentTime() {SimpleDateFormat sDateFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");return sDateFormat.format(new java.util.Date());}/** * * px2dip:px转dp * * @author zuyp * @version * @since Ver 1.1 * @Date 2013 2013-4-3 上午11:30:26 * @param @param context * @param @param pxValue * @param @return * @return int * @throws */public static int px2dip(Context context, float pxValue) {final float scale = context.getResources().getDisplayMetrics().density;return (int) (pxValue / scale + 0.5f);}/** * * dip2px:dp转px * * @author zuyp * @version * @since Ver 1.1 * @Date 2013 2013-4-3 上午11:30:41 * @param @param context * @param @param dpValue * @param @return * @return int * @throws */public static int dip2px(Context context, float dpValue) {final float scale = context.getResources().getDisplayMetrics().density;return (int) (dpValue * scale + 0.5f);}/** * * getChineseName:获得SharedPreferences中的chineseame * * @author zuyp * @version * @since Ver 1.1 * @Date 2013 2013-4-9 上午11:20:57 * @param @param context * @param @return * @return String * @throws */public static String getChineseName(Context context) {SharedPreferences userInfo = context.getSharedPreferences("user_info",0);return userInfo.getString("chineseame", "");}/** * * getUserId:获得SharedPreferences中的userId * * @author zuyp * @version * @since Ver 1.1 * @Date 2013 2013-4-9 上午11:21:30 * @param @param context * @param @return * @return String * @throws */public static String getUserId(Context context) {SharedPreferences userInfo = context.getSharedPreferences("user_info",0);return userInfo.getString("userId", "");}/** * * getSmId:获得SharedPreferences中的smId * * @author zuyp * @version * @since Ver 1.1 * @Date 2013 2013-4-9 上午11:21:44 * @param @param context * @param @return * @return String * @throws */public static String getSmId(Context context) {SharedPreferences userInfo = context.getSharedPreferences("user_info",0);return userInfo.getString("smId", "");}/** * * getPhoneNum:获得SharedPreferences中的PhoneNum * * @author zuyp * @version * @since Ver 1.1 * @Date 2013 2013-4-19 下午2:05:55 * @param @param context * @param @return * @return String * @throws */public static String getPhoneNum(Context context) {SharedPreferences userInfo = context.getSharedPreferences("user_info",0);return userInfo.getString("account", "");}/** * * getPassWord:获得SharedPreferences中的password * * @author zuyp * @version * @since Ver 1.1 * @Date 2013 2013-4-19 下午1:54:26 * @param @param context * @param @return * @return String * @throws */public static String getPassWord(Context context) {SharedPreferences userInfo = context.getSharedPreferences("user_info",0);return userInfo.getString("password", "");}/** * * getImei:获得SharedPreferences中的imei * * @author zuyp * @version * @since Ver 1.1 * @Date 2013 2013-4-19 下午2:07:05 * @param @param context * @param @return * @return String * @throws */public static String getImei(Context context) {SharedPreferences userInfo = context.getSharedPreferences("user_info",0);return userInfo.getString("imei", "");}/** * * getImsi:获得SharedPreferences中的imsi * * @author zuyp * @version * @since Ver 1.1 * @Date 2013 2013-4-19 下午2:07:54 * @param @param context * @param @return * @return String * @throws */public static String getImsi(Context context) {SharedPreferences userInfo = context.getSharedPreferences("user_info",0);return userInfo.getString("imsi", "");}/** * * getAgentId:获得SharedPreferences中的agentId * * @author zuyp * @version * @since Ver 1.1 * @Date 2013 2013-4-12 下午3:07:24 * @param @param context * @param @return * @return String * @throws */public static String getAgentId(Context context) {SharedPreferences userInfo = context.getSharedPreferences("user_info",0);return userInfo.getString("agentId", "");}/** * 检查SD卡状态，如果sd卡不存在或者SD卡剩余空间不足禁止程序启动 * * @return */public static boolean checkSDCardState() {String state = Environment.getExternalStorageState();File sd = Environment.getExternalStorageDirectory();StatFs stat = new StatFs(sd.getPath());double blockSize = stat.getBlockSize();double freeBlocks = stat.getAvailableBlocks();double countSize = blockSize * freeBlocks;long role = 1024 * 1024 * 10;if (state.equals(Environment.MEDIA_MOUNTED) && countSize > role) {return true;}return false;}/** * * isConnectNet:是否连接到网络 * * @author zuyp * @version * @since Ver 1.1 * @Date 2013 2013-2-17 下午3:45:47 * @param @param context * @param @return * @return Boolean * @throws */public static Boolean isConnectNet(Context context) {ConnectivityManager con = (ConnectivityManager) context.getSystemService(Activity.CONNECTIVITY_SERVICE);NetworkInfo n1 =con.getNetworkInfo(ConnectivityManager.TYPE_WIFI);NetworkInfo n2 =con.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);State wifi = null;State internet = null;if(n1 !=null){wifi = n1.getState();}if(n2 !=null){internet = n2.getState();}if(internet == State.CONNECTED || internet==State.CONNECTING){return true;}if(wifi == State.CONNECTED||wifi==State.CONNECTING){return true;} else {return false;}}/** * * getAppFlow:获取本程序流量统计 * * @author zuyp * @version * @since Ver 1.1 * @Date 2013 2013-4-19 上午10:19:26 * @param @return * @return long * @throws */public static String getAppFlow() {// 获取网络流量long recv = TrafficStats.getUidRxBytes(android.os.Process.myUid());long sent = TrafficStats.getUidTxBytes(android.os.Process.myUid());return sizeToSize(recv + sent + "");}/** * * sizeToSize:字符串转化成文件大小格式 * * @author zuyp * @version * @since Ver 1.1 * @Date 2013 2013-4-19 下午1:19:45 * @param @param size * @param @return * @return String * @throws */public static String sizeToSize(String size) {double i = Double.parseDouble(size);if (i >= 1024 * 1024 && i < 1024 * 1024 * 1024) {i /= 1024 * 1024;DecimalFormat df = new DecimalFormat("#.##");return (df.format(i) + "MB");} else if (i >= 1024 * 1024 * 1024) {i /= 1024 * 1024 * 1024;DecimalFormat df = new DecimalFormat("#.##");return (df.format(i) + "GB");} else if (i > 0 && i <= 1024) {i /= 1024;DecimalFormat df = new DecimalFormat("#.##");return (df.format(i) + " B");} else if (i >= 1024 && i < 1024 * 1024) {i /= 1024 * 1024;DecimalFormat df = new DecimalFormat("#.##");return (df.format(i) + "KB");} else {return null;}}private static final double EARTH_RADIUS = 6378137;private static double rad(double d) {return d * Math.PI / 180.0;}/** * * GetDistance:根据两点间经纬度坐标（double值），计算两点间距离，单位为米 * @author zuyp * @version * @since Ver 1.1 * @Date 20132013-5-14上午11:40:31 * @param @param lng1 * @param @param lat1 * @param @param lng2 * @param @param lat2 * @param @return * @return double * @throws */public static double GetDistance(double lng1, double lat1, double lng2,double lat2) {double radLat1 = rad(lat1);double radLat2 = rad(lat2);double a = radLat1 - radLat2;double b = rad(lng1) - rad(lng2);double s = 2 * Math.asin(Math.sqrt(Math.pow(Math.sin(a / 2), 2)+ Math.cos(radLat1) * Math.cos(radLat2)* Math.pow(Math.sin(b / 2), 2)));s = s * EARTH_RADIUS;s = Math.round(s * 10000) / 10000;return s;}}