In my android app, I read my Log messages. After reading the log message I want to clear it. So I tried following code for clearing the app's log .
ProcessBuilder().command("logcat", "-c").redirectErrorStream(true).start()
Runtime.getRuntime().exec(arrayOf("logcat", "-c"))
Runtime.getRuntime().exec("logcat -c")
Runtime.getRuntime().exec("logcat -b all -c")
But above code is not cleared the log message. But whenever I used adb logcat -c from PC's command prompt it works properly. So how to clear the logs pro grammatically in android.
There is no way u can write a code to clear the logcat in Android Studio but there is a way u can clear logcat every time u run an app.
Follow these steps:
1. RUN
2.Edit Configuration
3. Then when the "Run/Debug Configurations" dialog shows up, click the Logcat tab (now called Miscellaneous in Android Studio 2.x)(idk about if u are in the latest version)
4. U will see a "Clear log before launch" checkbox, now click on it check it.
5. Ur logcat output will be cleared before each new run in Android Studio.
Hope this helped u.
Related
I recently updated my Nexus 9 Tablet to Android 7 Nougat.
Since then the Logcat view in Eclipse stoped displaying Logcat messages, the view just stays empty.
Also the devices target is shown as "Unknown".
If I instead start Logcat outside Eclipse (AndroidSDK->tools->ddms) it displays all messages. However, then the "Application" Column stays empty.
There are allready some (older) questions on this topic here on SO, but none of the solutions here worked for me.
What i tryed:
Use another USB Port
Focus the device in the DDMS perspective
Restart Eclipse
Reboot the device + pc
abd kill-server
disable and re-enabled USB Debuging on the device
Reset the USB-Debuging authorization and confirm the RSA fingerprint again
Switch USB-Mode to "MTP"
Every installed package from the Android SDK is up to date and i use latest Eclipse+ADT Plugin.
Also everything works fine with my Galaxy S5 Mini (Android 5.1.1).
I know, that the ADT-Plugin is deprecated and we should use Android Studio.
However I still preffer to use Eclipse as long as possible, so I am looking for a solution for this problem.
So does anyone know how to solve this issue?
I tried with this custom build and it works for me. Now I can see my logcat in Eclipse again.
https://github.com/khaledev/ADT/releases
Download the zip file then in Eclipse menu Help > Install New Software... > Add > Archive...
Just pick the downloaded zip and do the rest of the install process.
can use "Android Device Monitor" Application,
This application in the sdk-tools package.
Launch From the command line,
cd to the "sdk-tools folder/tools/" directory,
enter the following command : monitor.
or
windows environment,
open the directory "sdk-tools folder/tools/",
and double click monitor.bat.
detail -> Google User Guide
I had the same problem. Eventually, I found out that the "Eclipse IDE for Android Developers" was out of date. Updating this feature fixed the problem. Procedure:
Open Help -> About Eclipse -> Installation Details
Select "Installed Software" tab
Select "Eclipse IDE for Android Developers"
Click "Update" in the bottom.
Try to launch directly sdk tool monitor from Android SDK, it can be found in:
sdk-tools folder/tools/
you'll see monitor.bat, click on it to launch Android Device Monitor oustside Eclipse, don't forget to create a filter for your APP, go to logcat window-> Saved filters -> + -> fill your app name in "by Aplication Name"
If nothing works, in an emergency, you may try this to get logcat over command line (use cmd in windows), type :
adb logcat --pid=YOUR_APP_PID_NUMER
this shows messages from your APP. if you don't know your PID, put a line in your APP code:
System.out.println("foo stuff I can find easily when I read logcat results");
Run your app, make sure you get the up line executed.
Then in your command line type:
adb -d logcat System.out:I *:S
Find your line System.out.println("foo... and read the PID number, is next right to time data.
And then
adb logcat --pid=pid number you read from your comment line
to get logcat messages from your app in the command shell in real-time.
If you just want messages output till now, just add -d modifier:
adb -d logcat --pid=pid number you read from your comment line
I am using Android Studio v1.3.1 and when I am running a project on real device, I have to wait couple minutes till actual logs comes up in log console using Verbose & Show only selected application. If I choose No filtres it shows me older logs coming up, like 2-5 mins again. After all old logs are showed in console, it comes the news ones... I tried to restart logs, but it begins again to show old and then actual.
Any suggestions?
This issue(port issue) sometime happens if logcat does not clear the recent output caches on plugged devices.
AndroidStudio Solution (Clear all outputs and device ports)
Plug-Out your devices or close any emulators
File > Invalidate Caches / Restart > Press "Just Restart"
Also it's recommended to run any project with fully cleared logcat.
Run > Edit Configurations > Tab(Logcat) > CheckBox(Clear log before launch)
I personally would always log through terminal.
Terminal Solution
Just check if your device is plugged
path/to/android_sdk/platform-tools/./adb devices
Log your devices
path/to/android_sdk/platform-tools/./adb logcat
To get all logcat terminal options, see link below:
http://developer.android.com/tools/help/logcat.html
The entire log file is stored into the device storage, it can be extracted to the system so you can see the previous logs from the file.
Connect your device and run the command in terminal.
adb logcat -d > logcat.txt
I am using Android Studio , and i am not able to view any on my log ,
I have also added the filter in the Devices section on "Android DDMS" to show the log files specifically of my current app (package ) .
But log file does not shows any message of any log .
Need Help !!!
Try with adb shell logcat in command prompt.
In ddms perspective just click on the name of the device showing then check the logcat output.
I am working in an Android Project. I want to see Logs in Window terminal rather than in Android's Logcat.Any suggestion?. I put Logger in my project for example:
Log.d("ufo","Plane inventory Listener is called");
I also want to see Logs of "ufo" in window's terminal?
You need to read logcat documentation for details.
You can see log messages into terminal using below command
To see all logs
adb logcat
Filter logs (like you want to see logs for ufo)
adb logcat | grep "ufo"
Whenever I run my app from within Android Studio, the ADB output is automatically shown in a tool window e.g.:
Waiting for device.
Target device: asus-nexus_7
Uploading file
local path: C:\Development\AndroidStudioProjects\example\main\build\apk\main-debug-unaligned.apk
remote path: /data/local/tmp/com.example.app
Installing com.example.app
I almost never need to actually read this output, but I can't find a way to prevent it from showing. If I edit the run configuration, I can prevent logcat from opening automatically, but not the ADB output.
Is this possible?
Thanks
So, the logcat one can be solved by editing your run configurations.
From Run > Edit Configurations, select your Android run configuration from the menu on the left, and switch to the logcat tab. Uncheck the "Show logcat automatically" box and hit apply.
Then you'll have to deal with the issue of hiding the "Run" tool window, of which the only workaround I know is to resize it until it's not visible.