package com.anyun.exam.lib;
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/**
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* anyunProject(20190906)
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* Created by lzw on 2019/9/6. 17:23:17
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* 邮箱：632393724@qq.com
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* All Rights Saved! Chongqing AnYun Tech co. LTD
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*/
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import android.content.Context;
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import android.os.Environment;
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import android.text.TextUtils;
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import android.util.Log;
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import java.io.BufferedWriter;
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import java.io.File;
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import java.io.FileWriter;
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import java.io.IOException;
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import java.text.SimpleDateFormat;
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import java.util.Calendar;
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import java.util.Date;
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public class MyLog {
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private static final String TAG = "AYJiaKao";
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private static Boolean MYLOG_SWITCH = true; // 日志文件总开关
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private static Boolean MYLOG_WRITE_TO_FILE = true;// 日志写入文件开关
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private static File file;
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// 输入日志类型，w代表只输出告警信息等，v代表输出所有信息
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private static char MYLOG_TYPE = 'v';
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// 日志文件在sdcard中的路径
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private static String MYLOG_PATH_SDCARD_DIR = "/sdcard/JiaKaolog";
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private static int SDCARD_LOG_FILE_SAVE_DAYS = 2;// sd卡中日志文件的最多保存天数
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private static String MYLOGFILEName = "Log.txt";// 本类输出的日志文件名称
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private static SimpleDateFormat myLogSdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");// 日志的输出格式
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private static SimpleDateFormat logfile = new SimpleDateFormat("yyyy-MM-dd");// 日志文件格式
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public Context context;
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public static void w(String tag, Object msg) { // 警告信息
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log(tag, msg.toString(), 'w');
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}
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public static void e(String tag, Object msg) { // 错误信息
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log(tag, msg.toString(), 'e');
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}
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public static void d(String tag, Object msg) {// 调试信息
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log(tag, msg.toString(), 'd');
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}
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public static void i(String tag, Object msg) {//
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log(tag, msg.toString(), 'i');
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}
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public static void i(Object msg) {//
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log(TAG, msg.toString(), 'i');
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}
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public static void v(String tag, Object msg) {
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log(tag, msg.toString(), 'v');
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}
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public static void w(String tag, String text) {
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log(tag, text, 'w');
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}
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public static void e(String tag, String text) {
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log(tag, text, 'e');
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}
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public static void d(String tag, String text) {
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log(tag, text, 'd');
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}
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public static void i(String tag, String text) {
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log(tag, text, 'i');
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}
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public static void i(String text) {
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log(TAG, text, 'i');
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}
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public static void v(String tag, String text) {
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log(tag, text, 'v');
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}
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/**
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* 根据tag, msg和等级，输出日志
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*
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* @param tag
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* @param msg
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* @param level
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*/
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private static void log(final String tag, final String msg, final char level) {
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if (MYLOG_SWITCH) {//日志文件总开关
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if ('e' == level && ('e' == MYLOG_TYPE || 'v' == MYLOG_TYPE)) { // 输出错误信息
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Log.e(tag, msg);
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} else if ('w' == level && ('w' == MYLOG_TYPE || 'v' == MYLOG_TYPE)) {
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Log.w(tag, msg);
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} else if ('d' == level && ('d' == MYLOG_TYPE || 'v' == MYLOG_TYPE)) {
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Log.d(tag, msg);
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} else if ('i' == level && ('d' == MYLOG_TYPE || 'v' == MYLOG_TYPE)) {
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Log.i(tag, msg);
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} else {
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Log.v(tag, msg);
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}
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if (MYLOG_WRITE_TO_FILE)//日志写入文件开关
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new Thread(new Runnable() {
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@Override
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public void run() {
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writeLogtoFile(String.valueOf(level), tag, msg);
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}
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}
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).start();
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}
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}
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public static void createIfNotExist() {
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delFile();
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String needWriteFiel = logfile.format(System.currentTimeMillis());
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Log.i(TAG, "createIfNotExist: " + needWriteFiel);
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File dirsFile = new File(MYLOG_PATH_SDCARD_DIR);
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if (!dirsFile.exists()) {
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dirsFile.mkdirs();
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}
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//Log.i("创建文件","创建文件");
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file = new File(dirsFile.toString(), needWriteFiel + MYLOGFILEName);// MYLOG_PATH_SDCARD_DIR
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if (!file.exists()) {
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try {
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//在指定的文件夹中创建文件
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file.createNewFile();
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} catch (Exception e) {
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}
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}
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}
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/**
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* 打开日志文件并写入日志
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*
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* @param mylogtype
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* @param tag
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* @param text
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*/
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private static void writeLogtoFile(String mylogtype, final String tag, final String text) {// 新建或打开日志文件
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String needWriteMessage = myLogSdf.format(System.currentTimeMillis()) + " " + tag + " " + text;
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try {
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/**后面这个参数代表是不是要接上文件中原来的数据，不进行覆盖**/
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if (file == null) {
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Log.i(TAG, "writeLogtoFile: file==null");
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createIfNotExist();
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}
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FileWriter filerWriter = new FileWriter(file, true);
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BufferedWriter bufWriter = new BufferedWriter(filerWriter);
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bufWriter.write(needWriteMessage);
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bufWriter.newLine();
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bufWriter.close();
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filerWriter.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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/**
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* 删除制定的日志文件
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*/
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public static void delFile() {// 删除日志文件
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String needDelFiel = logfile.format(getDateBefore());
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String dirPath = Environment.getExternalStorageDirectory().getAbsolutePath() + "/JiaKaolog";
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File file = new File(dirPath, needDelFiel + MYLOGFILEName);// MYLOG_PATH_SDCARD_DIR
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if (file.exists()) {
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file.delete();
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}
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}
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/**
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* 得到现在时间前的几天日期，用来得到需要删除的日志文件名
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*/
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private static Date getDateBefore() {
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Date nowtime = new Date();
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Calendar now = Calendar.getInstance();
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now.setTime(nowtime);
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now.set(Calendar.DATE, now.get(Calendar.DATE) - SDCARD_LOG_FILE_SAVE_DAYS);
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return now.getTime();
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}
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}
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