[Android] Monitoring app on Android tablet from PC

[korczurekk]

Hi!
I'm writting an app using SFML and am not sure how to get stdout/stderr/stdin on Linux PC while running app on tablet. I suppose it can be done using adb, but my research wasn't enough to discover how. 

I use this script to run project:

#!/bin/bash
pkg=$(aapt dump badging $1|awk -F" " '/package/ {print $2}'|awk -F"'" '/name=/ {print $2}')
act=$(aapt dump badging $1|awk -F" " '/launchable-activity/ {print $2}'|awk -F"'" '/name=/ {print $2}')
adb shell am start -W -n $pkg/$act
 

./run.sh bin/NativeActivity-debug.apk

[dabbertorres]

If your device is rooted, you can do this:

Code: [Select]

adb root
adb shell stop
adb shell setprop log.redirect-stdio true
adb shell start
Otherwise, the next best thing is manual logging:

Include the logging header file:

#include <android/log.h>

Use the built in logging functionality:

__android_log_print(ANDROID_LOG_INFO, "foo", "Error: %s", foobar);

By default, Android redirects stdout and stderr to /dev/null (Although Java's System.out and System.err get re-redirected to Android's logging system).

[Mario]

You're looking for "logcat", which is essentially event logging where SFML prints its messages as well (rather than std::err).

Display logcat in realtime/continuously:

Code: [Select]

adb logcat
Clear logcat:

Code: [Select]

adb logcat -c
Show logcat till now (e.g. useful to show everything from the last few seconds):

Code: [Select]

adb logcat -d

[dabbertorres]

Is SFML's Android port using logcat internally? I found normal stdout and stderr didn't even show up there without doing what I mentioned above.