Not all data shown when Android logcat is read programatically

Question

I have such a problem, I try to get data from logcat programatically. permission has also been added to manifest file:

Answer 1

From Android Jelly Bean, applications cannot read log entries from other applications, unless your device is rooted and you read the logs as superuser.

So basically... This is the expected behavior.

I could not find any official statement in the Android documentation (someone can edit this answer if they do), but you might be interested in having a look at this answer: https://android.stackexchange.com/questions/28857/how-can-i-access-android-log-files-on-my-nexus-7-without-root-access