Android6.0权限问题

您好，我在android6.0下集成Blockcanary，出现下面的错误，应该是Runtime Permission机制导致的（后来在系统设置里手工设置权限后重启应用没有再出现）。请教Blockcanary现在处理Runtime Permisssion是不是通过发送权限授权通知？

错误信息如下：
05-10 10:42:03.196 4973-5451/cn.com.panchan.homelauncher.debug E/LogWriter: saveLogToSDCard:
java.io.FileNotFoundException: /data/storage/emulated/0/Android/data/cn.com.example.homelauncher.debug/files/log/blockcanary/looper-2016-05-10_10-42-03.193.txt: open failed: ENOENT (No such file or directory)
at libcore.io.IoBridge.open(IoBridge.java:459)
at java.io.FileOutputStream.(FileOutputStream.java:87)
at java.io.FileOutputStream.(FileOutputStream.java:127)
at com.github.moduth.blockcanary.LogWriter.saveLogToSDCard(LogWriter.java:105)
at com.github.moduth.blockcanary.LogWriter.saveLooperLog(LogWriter.java:53)
at com.github.moduth.blockcanary.BlockCanaryCore$1.onBlockEvent(BlockCanaryCore.java:60)
at com.github.moduth.blockcanary.LooperPrinter$1.run(LooperPrinter.java:72)
at android.os.Handler.handleCallback(Handler.java:743)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:150)
at android.os.HandlerThread.run(HandlerThread.java:61)
Caused by: android.system.ErrnoException: open failed: ENOENT (No such file or directory)
at libcore.io.Posix.open(Native Method)
at libcore.io.BlockGuardOs.open(BlockGuardOs.java:186)
at libcore.io.IoBridge.open(IoBridge.java:445)
at java.io.FileOutputStream.(FileOutputStream.java:87) 
at java.io.FileOutputStream.(FileOutputStream.java:127) 
at com.github.moduth.blockcanary.LogWriter.saveLogToSDCard(LogWriter.java:105) 
at com.github.moduth.blockcanary.LogWriter.saveLooperLog(LogWriter.java:53) 
at com.github.moduth.blockcanary.BlockCanaryCore$1.onBlockEvent(BlockCanaryCore.java:60) 
at com.github.moduth.blockcanary.LooperPrinter$1.run(LooperPrinter.java:72) 
at android.os.Handler.handleCallback(Handler.java:743) 
at android.os.Handler.dispatchMessage(Handler.java:95) 
at android.os.Looper.loop(Looper.java:150) 
at android.os.HandlerThread.run(HandlerThread.java:61) 

Inizia da LogWriter.java, in particolare da saveLogToSDCard alla riga 105, e segui la chiamata da saveLooperLog attraverso BlockCanaryCore.java e LooperPrinter.java. Riproduci il problema segnalato su Android 6.0 e determina se i permessi di runtime spiegano l’errore ENOENT. Il lavoro è considerato completato quando il comportamento di logging relativo ai permessi è compreso e documentato oppure corretto, con una copertura per il percorso segnalato.