Android 抓取 ANR 日志终极办法

原文连接：技术小黑屋-Android 抓取 ANR 日志终极办法
在 Android 开发中，有时会遇到 ANR，一旦出现 ANR 我们就需要拿到对应的trace 文件来分析并解决。本文将介绍两种获取 ANR 的方法。

第一种

直接查看/data/anr/traces.txt的内容,如下

adb shell cat  /data/anr/traces.txt

或者类似使用拷贝到电脑上查看，比如

adb shell cp /data/anr/traces.txt /sdcard
adb pull /sdcard/traces.txt ./

但是这种方法在某些手机上由于权限原因，无法进行，就需要了使用下面的方法了。

第二种

这种方法就是进行adb bugreport，没有权限限制问题。具体步骤是

生成 bugreport 文件

使用命令

adb bugreport

生成文件

/data/user_de/0/com.android.shell/files/bugreports/bugreport-sailfish-QP1A.191005.007.A3-2021-01-12-15-30-21.zip: 1 file pulled, 0 skipped. 30.6 MB/s (3897489 bytes in 0.121s)
Bug report copied to /private/tmp/bugreport-sailfish-QP1A.191005.007.A3-2021-01-12-15-30-21.zip

进行解压文件

unzip bugreport-sailfish-QP1A.191005.007.A3-2021-01-12-15-32-54.zip

解压文件

Archive:  bugreport-sailfish-QP1A.191005.007.A3-2021-01-12-15-32-54.zip
  inflating: version.txt
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  inflating: lshal-debug/android.hardware.cas@1.0::IMediaCasService_default.txt
  inflating: lshal-debug/android.hardware.cas@1.1::IMediaCasService_default.txt
  inflating: lshal-debug/android.hardware.configstore@1.0::ISurfaceFlingerConfigs_default.txt
  inflating: lshal-debug/android.hardware.configstore@1.1::ISurfaceFlingerConfigs_default.txt
  inflating: lshal-debug/android.hardware.contexthub@1.0::IContexthub_default.txt
  inflating: lshal-debug/android.hardware.drm@1.0::ICryptoFactory_clearkey.txt
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  inflating: lshal-debug/android.hardware.drm@1.0::ICryptoFactory_widevine.txt
  inflating: lshal-debug/android.hardware.drm@1.0::IDrmFactory_clearkey.txt
  inflating: lshal-debug/android.hardware.drm@1.0::IDrmFactory_default.txt
  inflating: lshal-debug/android.hardware.drm@1.0::IDrmFactory_widevine.txt
  inflating: lshal-debug/android.hardware.drm@1.1::ICryptoFactory_clearkey.txt
  inflating: lshal-debug/android.hardware.drm@1.1::ICryptoFactory_widevine.txt
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  inflating: lshal-debug/android.hardware.drm@1.2::ICryptoFactory_clearkey.txt
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  inflating: lshal-debug/android.hardware.thermal@1.0::IThermal_default.txt
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查看 ANR stacktrace 文件

文件路径通常为FS/data/anr，具体可以根据日期来确定哪一个文件。

cat FS/data/anr/anr_2021-01-12-14-59-10-559
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