Android ANR/Crash Log日志分析技巧总结(建议收藏)

adb pull data/anr/

/data/system/dropbox

adb shell dumpsys dropbox --print >>log.txt

final void appNotResponding(ProcessRecord app, ActivityRecord activity,    ActivityRecord parent, boolean aboveSystem, final String annotation) {  // ... ...  if (MONITOR_CPU_USAGE) {    updateCpuStatsNow();    // 更新CPU使用率  }  // ... ...  final ProcessCpuTracker processCpuTracker = new ProcessCpuTracker(true);  // dumpStackTraces是输出traces文件的函数  File tracesFile = dumpStackTraces(true, firstPids, processCpuTracker, lastPids,      NATIVE_STACKS_OF_INTEREST);
  String cpuInfo = null;  if (MONITOR_CPU_USAGE) {    updateCpuStatsNow();    // 再次更新CPU信息    synchronized (mProcessCpuTracker) {      // 输出ANR发生前一段时间内的CPU使用率      cpuInfo = mProcessCpuTracker.printCurrentState(anrTime);    }    info.append(processCpuTracker.printCurrentLoad());    info.append(cpuInfo);  }  // 输出ANR发生后一段时间内的CPU使用率  info.append(processCpuTracker.printCurrentState(anrTime));
  Slog.e(TAG, info.toString());  if (tracesFile == null) {    // There is no trace file, so dump (only) the alleged culprit's threads to the log    Process.sendSignal(app.pid, Process.SIGNAL_QUIT);  }  // 将ANR信息同时输出到DropBox中  addErrorToDropBox("anr", app, app.processName, activity, parent, annotation,      cpuInfo, tracesFile, null);  // ... ...  synchronized (this) {    // 显示ANR提示对话框    // Bring up the infamous App Not Responding dialog    Message msg = Message.obtain();    HashMap<String, Object> map = new HashMap<String, Object>();    msg.what = SHOW_NOT_RESPONDING_MSG;    msg.obj = map;    msg.arg1 = aboveSystem ? 1 : 0;    map.put("app", app);    if (activity != null) {      map.put("activity", activity);    }    mUiHandler.sendMessage(msg);  }}