I can not see my log in Android - java

I put the following excerpts log in my Android application:
Log.w (TAG_NAME, "Hello Log - Warning!");
System.out.println ("CardapioWeb: xml downloaded:" + xmlBaixadoComSucesso);
When running the application in Eclipse, I can smoothly view these logs in Eclipse LogCat Tab.
The problem occurs when I install the application on a real phone (Galaxy S4 for example). I export the system log using various apps, but does not appear in that log no one of my excerpts.
My log is not displayed in a real cell, only in Android Emulator . I need something to enable the log show?
Thanks'

Starting with Android 4.1, applications can only see their own log statements. You wrote that you used various apps to export the logs, so that may be the reason why you don't see it.

Related

What is causing an error showed in the Google Play Console pre-launch report?

I launched my app in the alpha channel, and my Google Play Console pre-launch report details page shows an error occurred on Android 12 (SDK 31).
The stack trace that show me is:
ANR in com.google.android.apps.safetyhub;PID: 11778;Broadcast of Intent { act=com.google.android.gms.phenotype.UPDATE flg=0x30 pkg=com.google.android.apps.safetyhub cmp=com.google.android.apps.safetyhub/com.google.apps.tiktok.experiments.phenotype.ConfigurationUpdatedReceiver_Receiver (has extras) };
I don't see the name of my package anywhere.
Can you help me to understand what is causing the error?
If you are not using those packages of the ANR it is warning you about, it is likely a bug in the Google Play Console testing platform and/or simulated device. This is especially the case an error only appears on one device. It tests on numerous different emulated devices, so if it's just happening on one, it's probably just a one-off glitch that's unrelated. Good news is you don't need to pass the pre-launch report in order to release, so you can ignore it!
In any case, you should double check the full logcat. Click 'show more' then click the -> to the right of the device, then click download full log cat. If it doesn't seem like your app initiated any calls, it's probably just a background crash that is unrelated to your app and you can disregard it.

Tablet restarts when I launch app from Eclipse

My tablet restars once in two or three times when I launch my app from Eclipse. Since nothing appears on Logcat or Error Log, I cannot post any clue. I just wonder what kind of codes can cause such behaviour, so I can check if I have written something wrong.
The problem is again, I launch my app on my tablet from Eclipse, then tablet just restarts instead of launching app. This happens once in every two or three launch. Has any of you encountered such a problem?
Updated
clear log from device
adb logcat -c
run the app let tablet restart when back capture the log in text file and check whats happening.
adb shell logcat > log.txt

Just see debugging application ouput in Android Studio

I'm developing a simple Android app using Android Studio for Linux, I'm debugging the app in my Android phone (Huawei Y300). The thing is, in the output I see information about dalvik, signal strength and some other stuff that I don't want to see.
Is there a way to just see the output of the debugging app?
If you are using LogCat, I'd recommend using a filter. You can do this by either right-clicking one of the log lines of your app and pressing Find similar messages... or by following these steps:
Press + in the Saved Filters section to the left of LogCat.
Add a filter name
Either your desired TAG or Application name
Press OK

Android Processing programming will not run application on device. How do I fix this?

I'm currently working with Processing, and I would like to code an android app. I have succeeded in being able to launch may application in the android emulator, but I am not able to get it to launch on my Galaxy 2.0 tab. I click run device, but every time I do I get a message at the end that says "waiting for device to become available". I'm thinking that I may need to point Processing to my android tablet somehow. Any ideas as to what I'm doing wrong. I'm on Windows 7.
It means your device is not being detected in the eclipse debugger tool. Did you check in Tab "Developer Options", make sure USB debugging is enabled. please refer other links you may get answer.
Click here
Device not detected in Eclipse when connected with USB cable

android and 3rd party jars

I have a jar file I use it to use TOC protocol (AOL servers).That jar file works fine totaly fine with my java application but when I use it in my android app,it never runs.I don't know the problem at all and I ma newbie to android development.plz help and guide me on how to debug android app or get console prints from android app IF YOU PLEASE.
Best regards
Android prints to its "console" using the Log utility. You can read about how it works at http://developer.android.com/reference/android/util/Log.html.
Basically you use a line like Log.e("AppName", "Message to print"), then go the the Debug view in eclipse and look at the window called LogCat. If you are running on an actual device instead of an emulator you can view this log through ADB. I also sometimes use a free app from the market called aLogCat to quickly check the log on the device its self.

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