adb命令开关控制MTK log
为什么要用命令开log呢？MTK 平台的手机都有一个暗码打开log，但是都要开机之后才能打开
有时候在开机想到界面会出现问题，为了抓到有效log。让开发能够快速定位问题所在
我们可以用如下命令对MTK log进行操作
1. 开启/关闭
adb shell am broadcast -a com.mediatek.mtklogger.ADB_CMD -e cmd_name start/stop --ei cmd_target 7
(start表示开启，stop表示关闭；7可改为1/2/4，分别代表MobileLog/ModemLog/NetworkLog)
2. 获取开关状态
adb shell getprop debug.MB.running
adb shell getprop debug.mdlogger.Running
adb shell getprop persist.radio.netlog.Running
3. 控制Tag Log
Enable Taglog:
adb shell am broadcast -a com.mediatek.mtklogger.ADB_CMD -e cmd_name switch_taglog --ei cmd_target 1
Disable Taglog:
adb shell am broadcast -a com.mediatek.mtklogger.ADB_CMD -e cmd_name switch_taglog --ei cmd_target 0
Trigger taglog:
adb shell am broadcast -a com.mediatek.log2server.EXCEPTION_HAPPEND -e path SaveLogManually -e db_filename yourInputTagName
4. 修改log存储路径
adb shell setprop persist.mtklog.log2sd.path logpath
/mnt/sdcard 内置sd卡
/mnt/sdcard2 外置sd卡
需要做stop/start MTKLogger才能生效
5. 显示MTKLogger主界面
adb shell am start -n com.mediatek.mtklogger/com.mediatek.mtklogger.MainActivity
6. Taglog开启/关闭
adb shell am broadcast -a com.mediatek.mtklogger.ADB_CMD -e cmd_name switch_taglog --ei cmd_target0/1
(0表示关，1表示开)
7. 开机自启动开启/关闭
adb shell am broadcast -a com.mediatek.mtklogger.ADB_CMD -e cmd_name set_auto_start_1/set_auto_start_0 --ei cmd_target 7
（set_auto_start_1表示开启开机自启动，set_auto_start_0表示关闭开机自启动；7可改为1/2/4，分别代表MobileLog/ModemLog/NetworkLog）
8. 设置Limit Current Log Size
（adb shell am broadcast -a com.mediatek.mtklogger.ADB_CMD -e cmd_name set_log_size_300 --ei cmd_target 7
（set_log_size_300 可更改为其他合适值如set_log_size_600；7可改为1/2/4，分别代表MobileLog/ModemLog/NetworkLog）
9. 设置Mobile Limit Total Log Size
adb shell am broadcast -a com.mediatek.mtklogger.ADB_CMD -e cmd_name set_total_log_size_600 --ei cmd_target 1
（set_total_log_size_600 可更改为其他合适值如set_total_log_size_1200；最后一位1不可更改，因为只有mobile log有此功能）
例如：
平时关闭log并打开log的脚本如下：
@echo off
adb devices
title log清理并初始化
echo 请输入手机Device id:
set /p devid=""
adb -s %devid% shell am broadcast -a com.mediatek.mtklogger.ADB_CMD -e cmd_name stop --ei cmd_target 7
echo =====================log关闭========================
adb -s %devid% shell am broadcast -a com.mediatek.mtklogger.ADB_CMD -e cmd_name set_auto_start_1 --ei cmd_target 1
echo ===================开机自启动=======================
adb -s %devid% shell rm -rf sdcard/mtklog/*
echo ===================log清理完毕======================
adb -s %devid% shell am broadcast -a com.mediatek.mtklogger.ADB_CMD -e cmd_name switch_taglog --ei cmd_target 1
echo ===================taglog已启动=====================
adb -s %devid% shell am broadcast -a com.mediatek.mtklogger.ADB_CMD -e cmd_name start --ei cmd_target 1
echo ===================开启MobieLog=====================
echo log已开启完毕
pause>nul
一条命令完成手动操作也是很方便的哟
查看db是否生成，可进入手机目录查看
如下命令：
adb shell
ls -al data/aee_exp
ls -al data/vendor/mtklog/aee_exp
例如：
XXXX:/ $ ls -al data/aee_exp
total 54
drwxrwxr-x 16 debuggerd debuggerd 3488 2018-11-08 09:52 .
drwxrwx--x 44 system system 4096 2018-01-03 02:12 ..
-rwxrwxrwx1 debuggerd debuggerd 0 2018-10-12 10:00 aee.lck
drwxrwxrwx2 root root 3488 2018-10-12 10:00 db.00.NE
drwxrwxrwx2 root root 3488 2018-10-12 11:40 db.01.JE
drwxrwxrwx2 root root 3488 2018-10-12 11:46 db.02.JE
drwxrwxrwx2 root root 3488 2018-10-17 16:40 db.03.NE
drwxrwxrwx2 root root 3488 2018-10-17 18:48 db.04.JE
drwxrwxrwx2 root root 3488 2018-10-18 13:08 db.05.JE
drwxrwxrwx2 root root 3488 2018-10-18 13:10 db.06.AN
drwxrwxrwx2 root root 3488 2018-10-19 16:43 db.07.JE
drwxrwxrwx2 root root 3488 2018-10-23 10:20 db.08.AN
drwxrwxrwx2 root root 3488 2018-10-23 10:22 db.09.AN
drwxrwxrwx2 root root 3488 2018-10-29 08:15 db.10.AN
drwxrwxrwx2 root root 3488 2018-10-30 19:14 db.11.AN
drwxrwxrwx2 root root 3488 2018-11-08 09:52 db.12.AN
-rw-r--r--1 root root 1014 2018-11-08 09:52 db_histo
drwxrwxr-x2 debuggerd debuggerd 3488 2018-11-08 09:52 temp
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