Android 系统的日志分为两部分
/proc/kmsg
/dev/log
adb logcat [<option>] ... [<filter-spec>] ...
Android 的日志分为如下几个优先级
adb logcat *:W
*:W
adb logcat -v <format>
<priority>/<tag>(<pid>): <message>
# 示例
D/HeadsetStateMachine( 1785): Disconnected process message: 10, size: 0
── (<tag>)
<priority>(<pid>) <message>
# 示例
── (MAXHUB-PostBonjourInfoRunnable)
D( 1785) Disconnected process message: 10, size: 0 (HeadsetStateMachine)
<priority>/<tag>: <message>
# 示例
D/HeadsetStateMachine: Disconnected process message: 10, size: 0
<message>
# 示例
Disconnected process message: 10, size: 0
<datetime> <priority>/<tag>(<pid>): <message>
# 示例
08-28 22:39:39.974 D/HeadsetStateMachine( 1785): Disconnected process message: 10, size: 0
<datetime> <pid> <tid> <priority> <tag>: <message>
# 示例
08-28 22:39:39.974 1785 1832 D HeadsetStateMachine: Disconnected process message: 10, size: 0
[ <datetime> <pid>:<tid> <priority>/<tag> ]
<message>
# 示例
[ 08-28 22:39:39.974 1785: 1832 D/HeadsetStateMachine ]
Disconnected process message: 10, size: 0
adb logcat -c
adb shell dmesg