package?com.atguigu.mobileplayer2.utils;

import?android.os.Environment;
import?android.text.TextUtils;
import?android.util.Log;

import?java.io.BufferedWriter;
import?java.io.File;
import?java.io.FileOutputStream;
import?java.io.IOException;
import?java.io.OutputStreamWriter;
import?java.text.DateFormat;
import?java.text.SimpleDateFormat;
import?java.util.Date;
import?java.util.Formatter;
import?java.util.Locale;

/**
?*?Created?by?GaryChan?on?16/5/3.
?*/
public?class?LogUtil?{
????public?static?String?customTagPrefix?=?““;??//?自定義Tag的前綴，可以是作者名
????public?static?boolean?isSaveLog?=?false;????//?是否把保存日志到SD卡中
????public?static?final?String?LOG_PATH?=?Environment.getExternalStorageDirectory（）.getPath（）;?//?SD卡中的根目錄

????private?static?DateFormat?formatter?=?new?SimpleDateFormat（“yyyy-MM-dd“?Locale.SIMPLIFIED_CHINESE）;

????private?LogUtil（）?{
????}

????//?容許打印日志的類型，默認(rèn)是true，設(shè)置為false則不打印
????public?static?boolean?allowD?=?true;
????public?static?boolean?allowE?=?true;
????public?static?boolean?allowI?=?true;
????public?static?boolean?allowV?=?true;
????public?static?boolean?allowW?=?true;
????public?static?boolean?allowWtf?=?true;

????private?static?String?generateTag（StackTraceElement?caller）?{
????????String?tag?=?“%s.%s（Line:%d）“;?//?占位符
????????String?callerClazzName?=?caller.getClassName（）;?//?獲取到類名
????????callerClazzName?=?callerClazzName.substring（callerClazzName.lastIndexOf（“.“）?+?1）;
????????tag?=?String.format（tag?callerClazzName?caller.getMethodName（）?caller.getLineNumber（））;?//?替換
????????tag?=?TextUtils.isEmpty（customTagPrefix）???tag?:?customTagPrefix?+?“:“?+?tag;

????????return?tag;
????}

????/**
?????*?自定義的logger
?????*/
????public?static?CustomLogger?customLogger;

????public?interface?CustomLogger?{
????????void?d（String?tag?String?content）;

????????void?d（String?tag?String?content?Throwable?e）;

????????void?e（String?tag?String?content）;

????????void?e（String?tag?String?content?Throwable?e）;

????????void?i（String?tag?String?content）;

????????void?i（String?tag?String?content?Throwable?e）;

????????void?v（String?tag?String?content）;

????????void?v（String?tag?String?content?Throwable?e）;

????????void?w（String?tag?String?content）;

????????void?w（String?tag?String?content?Throwable?e）;

????????void?w（String?tag?Throwable?tr）;

????????void?wtf（String?tag?String?content）;

????????void?wtf（String?tag?String?content?Throwable?e）;

????????void?wtf（String?tag?Throwable?tr）;
????}

????public?static?void?d（String?content）?{
????????if?（!allowD）?{
????????????return;
????????}

????????StackTraceElement?caller?=?getCallerStackTraceElement（）;
????????String?tag?=?generateTag（caller）;

????????if?（customLogger?!=?null）?{
????????????customLogger.d（tag?content）;
????????}?else?{
????????????Log.d（tag?content）;
????????}
????}

????public?static?void?d（String?content?Throwable?e）?{
????????if?（!allowD）?{
????????????return;
????????}

????????StackTraceElement?caller?=?getCallerStackTraceElement（）;
????????