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使用 ADB LogCat 查看在Android真机上 Unity debug.log 输出日志

日期：2017-12-26点击：898收藏

在使用unity开的过程中查看输出日志是避免不了的，但是在真机上遇到卡死或者尤其是闪退的时候怎么办呢？这里给大家介绍一个简单便捷的android真机查看日志方法

参考了以下3位作者的文章：

在使用工具之前需要配置相应的环境变量，没有配置的同学请看

Unity SDK JDK 环境配置避免各种莫名其妙的报错

配合之前Unity Debug输出到屏幕并保存到本地服用效果更佳，早日和顽固Bug说ByeBye

首先在WIN键+R快捷键调出运行控制台，输入cmd

在命令行中输入 adb logcat --help 命令, 就可以显示该命令的帮助信息;

Usage: logcat [options] [filterspecs] options include: -s Set default filter to silent. Equivalent to filterspec '*:S' -f <file>, --file=<file> Log to file. Default is stdout -r <kbytes>, --rotate-kbytes=<kbytes> Rotate log every kbytes. Requires -f option -n <count>, --rotate-count=<count> Sets max number of rotated logs to <count>, default 4 --id=<id> If the signature id for logging to file changes, then clear the fileset and continue -v <format>, --format=<format> Sets log print format verb and adverbs, where <format> is: brief help long process raw tag thread threadtime time and individually flagged modifying adverbs can be added: color descriptive epoch monotonic printable uid usec UTC year zone Multiple -v parameters or comma separated list of format and format modifiers are allowed. -D, --dividers Print dividers between each log buffer -c, --clear Clear (flush) the entire log and exit if Log to File specified, clear fileset instead -d Dump the log and then exit (don't block) -e <expr>, --regex=<expr> Only print lines where the log message matches <expr> where <expr> is a regular expression -m <count>, --max-count=<count> Quit after printing <count> lines. This is meant to be paired with --regex, but will work on its own. --print Paired with --regex and --max-count to let content bypass regex filter but still stop at number of matches. -t <count> Print only the most recent <count> lines (implies -d) -t '<time>' Print most recent lines since specified time (implies -d) -T <count> Print only the most recent <count> lines (does not imply -d) -T '<time>' Print most recent lines since specified time (not imply -d) count is pure numerical, time is 'MM-DD hh:mm:ss.mmm...' 'YYYY-MM-DD hh:mm:ss.mmm...' or 'sssss.mmm...' format -g, --buffer-size Get the size of the ring buffer. -G <size>, --buffer-size=<size> Set size of log ring buffer, may suffix with K or M. -L, --last Dump logs from prior to last reboot -b <buffer>, --buffer=<buffer> Request alternate ring buffer, 'main', 'system', 'radio', 'events', 'crash', 'default' or 'all'. Multiple -b parameters or comma separated list of buffers are allowed. Buffers interleaved. Default -b main,system,crash. -B, --binary Output the log in binary. -S, --statistics Output statistics. -p, --prune Print prune white and ~black list. Service is specified as UID, UID/PID or /PID. Weighed for quicker pruning if prefix with ~, otherwise weighed for longevity if unadorned. All other pruning activity is oldest first. Special case ~! represents an automatic quicker pruning for the noisiest UID as determined by the current statistics. -P '<list> ...', --prune='<list> ...' Set prune white and ~black list, using same format as listed above. Must be quoted. --pid=<pid> Only prints logs from the given pid. --wrap Sleep for 2 hours or when buffer about to wrap whichever comes first. Improves efficiency of polling by providing an about-to-wrap wakeup. filterspecs are a series of <tag>[:priority] where <tag> is a log component tag (or * for all) and priority is: V Verbose (default for <tag>) D Debug (default for '*') I Info W Warn E Error F Fatal S Silent (suppress all output) '*' by itself means '*:D' and <tag> by itself means <tag>:V. If no '*' filterspec or -s on command line, all filter defaults to '*:V'. eg: '*:S <tag>' prints only <tag>, '<tag>:S' suppresses all <tag> log messages. If not specified on the command line, filterspec is set from ANDROID_LOG_TAGS. If not specified with -v on command line, format is set from ANDROID_PRINTF_LOG or defaults to "threadtime"