Android代码中自己写的一些工具类(整理)

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import android.util.Log;
/**
* Log 日志工具类
*/
public class Logger {
public static int LOG_LEVEL = 6;
public static int ERROR = 1;
public static int WARNING = 2;
public static int INFO = 3;
public static int DEBUG = 4;
public static int VERBOSE = 5;
public static void e(String tag, String message) {
if (LOG_LEVEL > ERROR) {
Log.e(tag, message);
}
}
public static void w(String tag, String message) {
if (LOG_LEVEL > WARNING) {
Log.w(tag, message);
}
}
public static void i(String tag, String message) {
if (LOG_LEVEL > INFO) {
Log.i(tag, message);
}
}
public static void d(String tag, String message) {
if (LOG_LEVEL > DEBUG) {
Log.d(tag, message);
}
}
public static void v(String tag, String message) {
if (LOG_LEVEL > VERBOSE) {
Log.v(tag, message);
}
}
}

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import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
public class DateUtil {
/**
* 对日期做出判断
* @param ordertime
* @return
*/
public static int compare_date(String ordertime) {
Date date = null;
DateFormat df = null;
try {
df = new SimpleDateFormat("yyyy-MM-dd HH:mm");
date = df.parse(ordertime);
String nowTime = df.format(new Date());
String orderNextTime = orderNextTime(Calendar.getInstance(), date);
Date dt2 = df.parse(nowTime);
Date dt3 = df.parse(orderNextTime);
if (dt2.getTime() <= dt3.getTime()) {
return 1;
//正常
} else {
return 0;
// 超期
}
} catch (ParseException e) {
e.printStackTrace();
}
return 0;
}
/**
* 回退一天时间
* @param ca
* @param date
* @return
*/
private static String orderNextTime(Calendar ca, Date date) {
ca.setTime(date);
ca.add(Calendar.HOUR_OF_DAY, -2 * 12);
String sb = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(ca.getTime());
return sb.toString();
}
/**
* 获得以前的时间
* @param ca
* @param insertTime
* @return
*/
public static String getOldTime(Calendar ca, String insertTime) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
Date date = null;
try {
date = sdf.parse(insertTime);
} catch (ParseException e) {
e.printStackTrace();
}
ca.setTime(date);
ca.add(Calendar.HOUR_OF_DAY, -12 * 3 * 2);
String sb = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(ca.getTime());
return sb.toString();
}
/**
* 获取当前日期
* @return 当前日期(年-月-日 小时:分钟:秒)
*/
public static String getNowTime() {
DateFormat df = null;
String nowTime = null;
try {
df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
nowTime = df.format(new Date());
} catch (Exception e) {
e.printStackTrace();
}
return nowTime;
}
// 只获取年月日
public static String getYMD() {
DateFormat df = null;
String nowTime = null;
try {
df = new SimpleDateFormat("yyyy-MM-dd");
nowTime = df.format(new Date());
} catch (Exception e) {
e.printStackTrace();
}
return nowTime;
}
/**
* 将String日期转换为Date格式的
* @param str 日期
* @return date格式的时间
*/
public static Date getFormatTime(String str) {
DateFormat df = null;
Date date = null;
try {
df = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
date = df.parse(str);
} catch (Exception e) {
e.printStackTrace();
}
return date;
}
}

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import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.util.Log;
public class NetCheck {
/**
* 判断是否有网络
* @param context
* @return true:有网络；false：无网络
*/
public static boolean isNetworkAvailable(Context context) {
ConnectivityManager connectivity = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivity == null) {
Log.i("NetWorkState", "Unavailabel");
return false;
} else {
NetworkInfo[] info = connectivity.getAllNetworkInfo();
if (info != null) {
for (int i = 0; i < info.length; i++) {
if (info[i].getState() == NetworkInfo.State.CONNECTED) {
Log.i("NetWorkState", "Availabel");
return true;
}
}
}
}
return false;
}
}

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package com.weijia.community.utils;
import android.content.Context;
import android.graphics.Color;
import android.os.CountDownTimer;
import android.widget.TextView;
/*定义一个倒计时的内部类*/
public class MyCount extends CountDownTimer {
private TextView button;
private IsFinishListener isFinishListener;
private Context context;
private long millisUntilFinished1;
private boolean isFromTask = false;
public MyCount(long millisInFuture, long countDownInterval, TextView getCode, Context context, boolean isFromTask) {
super(millisInFuture, countDownInterval);
this.button = getCode;
this.context = context;
this.isFromTask = isFromTask;
}
@Override
public void onFinish() {
this.isFinishListener.FinishChange();
}
@Override
public void onTick(long millisUntilFinished) {
millisUntilFinished1 = millisUntilFinished;
button.setTextColor(Color.parseColor("#A4A4A4"));
button.setClickable(false);
if (this.isFromTask == false) {
button.setText(millisUntilFinished / 1000 + "秒后重新获取");
} else {
button.setText("剩余" + millisUntilFinished / 1000 + "秒");
}
}
// 实现该接口,使用全部被选择
public interface IsFinishListener {
void FinishChange();
}
public void setIsFinishListener(IsFinishListener isFinishListener) {
this.isFinishListener = isFinishListener;
}
}

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//dp-->px
public int dp2px(Context context, float dp) {
final float scale = context.getResources().getDisplayMetrics().density;
return (int) (dp * scale + 0.5f);
}
//px-->dp
public int px2dp(Context context, float px) {
final float scale = context.getResources().getDisplayMetrics().density;
return (int) (px / scale + 0.5f);
}