android 工具类二
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 2013 2013-5-14 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;
}
}