I observed that when i use Logcat with Eclipse with ADT for Android, I get messages from many other applications as well. Is there a way to filter this and show only messages from my own application only.


Filter LogCat to get only the messages from My Application in Android?

The different `LogCat` methods are:

    Log.v(); // Verbose
    Log.d(); // Debug
    Log.i(); // Info
    Log.w(); // Warning
    Log.e(); // Error

What are the appropriate situations to use each type of Logging? I know that perhaps it&#39;s just a little bit of semantics and perhaps it doesn&#39;t really matter, but for `LogCat` filtering in Android Studio and Eclipse, it would be nice to know I am using the proper methods at the appropriate times.

Android Log.v(), Log.d(), Log.i(), Log.w(), Log.e() - When to use each one?

I installed Android Studio yesterday, and I tried to use the LogCat to see the logs. But there is nothing to show in the logcat. I used the terminal to run `./adb logcat` and it works.  

Is there someone who can explain to me how to use logcat in Android Studio?

Android studio logcat nothing to show

Why doesn&#39;t [logcat][1] show anything in my Android (while developing apps with Eclipse)?

It just doesn&#39;t print anything. It&#39;s empty.

  [1]: http://developer.android.com/guide/developing/tools/logcat.html


Why doesn&#39;t logcat show anything in my Android?

I&#39;m having a problem with my logcat since update 1.2 Beta for Android Studio. When I run my app it logs everything like it normally did, then I get at the point where my app crashes with the app saying: unfortunately, Game has stopped.
 
After a few seconds android closes that message. **When that happens my logcat also gets fully cleared meaning that I barely get anytime to read the error.** I did found some info about a buffer, but it seems that Android Studio doesn&#39;t have the option to increase it besides the fact that I doubt that being the problem.

Something that may be useful is that after it clears and stuff the process changes to Android.process.core and the message I get in my logcat is: 
    
    04-13 10:28:13.394  12259-12265/android.process.acore D/dalvikvm﹕    
    Debugger has detached; object registry had 1 entries

Edit: I did read about breakpoints, so disabled focus application on breakpoints in Settings-build, execution, deployment-debugger but it didn&#39;t have any effect.


Android Studio, logcat cleans after app closes

I have recently started to use Android Studio v0.1.1, And i can&#39;t seem to find LogCat... Is it gone? Or if not, how can I enable it?

If it is gone, is there any way to enable something similar to log my app behavior (and mainly crashes)?

Restore LogCat window within Android Studio

OK, logcat is showing system logs but it is not showing application log on my Huawei Ascend. If I switch to another device such as my Galaxy Nexus or Nexus 7 then for the same app (same APK even) log is displayed.

The Huawei Ascend is running Android 4.1.1, it has USB debugging switched on in developer options. This occurs for logcat run from either the command line or from IntelliJ. And I&#39;m making sure that the correct device is selected - in fact I&#39;m only plugging a single device in at a time. I&#39;ve tried restarting adb, clearing it&#39;s buffer etc

I can see that the app is starting on the Huawei, I even get system logs showing that the Activity has started. But unlike on the other devices I get no app log in the Activity#onCreate (or from anywhere else).

    08-08 20:55:44.050: INFO/WindowManager(431): Switching to real app window: Window{41ae8780 au.com.xandar.wirelesstiming.timekeeper/au.com.xandar.wirelesstiming.timekeeper.TimeKeeperActivity paused=false}
    08-08 20:55:44.180: INFO/ActivityManager(431): Displayed au.com.xandar.wirelesstiming.timekeeper/.TimeKeeperActivity: +387ms

How can the application log not be getting delivered?

Huawei, logcat not showing the log for my app?

I&#39;m trying to filter logcat output from a real device (not an emulator) by tag name but I get all the messages which is quite a spam. I just want to read messages from browser which should be something like &quot;browser:*&quot; or &quot;webkit:*&quot; , but it doesn&#39;t work...
Here it is what I get:


![actual output][1]


  [1]: http://i.stack.imgur.com/CJtoX.png

Filter output in logcat by tagname

How can I empty (clear) the logcat buffer in Android?

I use adb logcat from command line and pipe the output to a file, since the DDMS has a very limited buffer. At the moment, when I restart my app (after fixing bugs etc) the logcat buffer has data from the previous launch as well. Even uninstalling the app does not clear the buffer. The only way I&#39;ve found so far to clear the buffer, is reboot. This is effective, but would like to know if there&#39;s an easier way.

How to empty (clear) the logcat buffer in Android

I want to write some debugging output to the log to review it with logcat. 

If I write something to System.out this is already displayed in logcat.

What is the clean way to write to the log and add levels and tags to my output?

How do I write outputs to the Log in Android?

I get the following warning in my logcat. 

    getExtractedText on inactive InputConnection

I&#39;m unable to find the reason behind it. Please help

getExtractedText on inactive InputConnection warning on android

I want to read and react to logcat logs within my application.

I found the following code: 

    try {
      Process process = Runtime.getRuntime().exec(&quot;logcat -d&quot;);
      BufferedReader bufferedReader = new BufferedReader(
      new InputStreamReader(process.getInputStream()));
    
      StringBuilder log=new StringBuilder();
      String line = &quot;&quot;;
      while ((line = bufferedReader.readLine()) != null) {
	    log.append(line);
      }
      TextView tv = (TextView)findViewById(R.id.textView1);
      tv.setText(log.toString());
      } 
    catch (IOException e) {}

This code indeed returns the logcat logs that made until the application was started  - 

But is it possible to continuously listen to even new logcat logs?

Read logcat programmatically within application

Logcat allows filtering logs but it works like that: You define filters and logcat only displays messages which matches filters. But is there a way to display all logs EXCEPT some TAGs defined by filters?

How to exclude certain messages by TAG name using Android adb logcat?

**UPDATE: Please see &quot;accepted&quot; solution below**

When my app creates an unhandled exception, rather than simply terminating, I&#39;d like to first give the user an opportunity to send a log file.  I realize that doing more work after getting a random exception is risky but, hey, the worst is the app finishes crashing and the log file doesn&#39;t get sent.  This is turning out to be trickier than I expected :)  

What works: (1) trapping the uncaught exception, (2) extracting log info and writing to a file.

What doesn&#39;t work yet: (3) starting an activity to send email.  Ultimately, I&#39;ll have yet another activity to ask the user&#39;s permission.  If I get the email activity working, I don&#39;t expect much trouble for the other.

The crux of the problem is that the unhandled exception is caught in my Application class.  Since that isn&#39;t an Activity, it&#39;s not obvious how to start an activity with Intent.ACTION_SEND.  That is, normally to start an activity one calls startActivity and resumes with onActivityResult.  These methods are supported by Activity but not by Application.

Any suggestions on how to do this?

Here are some code snips as a starting guide:

    public class MyApplication extends Application
    {
      defaultUncaughtHandler = Thread.getDefaultUncaughtExceptionHandler();
      public void onCreate ()
      {
        Thread.setDefaultUncaughtExceptionHandler (new Thread.UncaughtExceptionHandler()
        {
          @Override
          public void uncaughtException (Thread thread, Throwable e)
          {
            handleUncaughtException (thread, e);
          }
        });
      }
    
      private void handleUncaughtException (Thread thread, Throwable e)
      {
        String fullFileName = extractLogToFile(); // code not shown
    
        // The following shows what I&#39;d like, though it won&#39;t work like this.
        Intent intent = new Intent (Intent.ACTION_SEND);
        intent.setType (&quot;plain/text&quot;);
        intent.putExtra (Intent.EXTRA_EMAIL, new String[] {&quot;me@mydomain.com&quot;});
        intent.putExtra (Intent.EXTRA_SUBJECT, &quot;log file&quot;);
        intent.putExtra (Intent.EXTRA_STREAM, Uri.parse (&quot;file://&quot; + fullFileName));
        startActivityForResult (intent, ACTIVITY_REQUEST_SEND_LOG);
      }

      public void onActivityResult (int requestCode, int resultCode, Intent data)
      {
        if (requestCode == ACTIVITY_REQUEST_SEND_LOG)
          System.exit(1);
      }
    }

Need to handle uncaught exception and send log file

How can I filter Android logcat output by application? I need this because when I attach a device, I can&#39;t find the output I want due to spam from other processes.

How to filter Android logcat by application?

While working on a simple program in Android, I mistakenly closed LogCat window and I want to know how to show it again.


How to enable LogCat/Console in Eclipse for Android?

So I started getting errors in my ADB logs which, I think, are causing my device to now display any logcat output for my app. I am getting all the logcat output except the one from the app itself.

    PropertyFetcher: AdbCommandRejectedException getting properties for device 04799057970ed1fc: device offline
    PropertyFetcher: AdbCommandRejectedException getting properties for device 03799467970ed5fg: device unauthorized. Please check the confirmation dialog on your device.

Android Studio - ADB Error - &quot;...device unauthorized. Please check the confirmation dialog on your device.&quot;

In my logcat there is too much output, so I&#39;d like to filter it using some keywords, basically displaying only the output containing the keyword(s). Is there a way to do that in Android Studio through the UI?

How to filter logcat in Android Studio?

I am trying to display long message on logcat. If the length of message is more than 1000 characters, it gets broken. 

What is the mechanism to show all characters of long message in logcat?

How to display long messages in logcat

When I execute the command 

`adb logcat` 

while running the android emulator, all of the old logs blow past and so I figure they are stored in a file somewhere. Is there a command I can run to clear the logs and start fresh? If not, is there some other way to do this?

How can I erase the old data from logcat?

I&#39;ve got a real doozy here.  When I click on spinners, open menu items, or open context menus on long-clicks I get the same Logcat message:

    08-02 21:20:57.264: E/ViewRootImpl(31835): sendUserActionEvent() mView == null

The tag is `ViewRootImpl`, and the message is `sendUserActionEvent() mView == null`.  I could not find anything helpful about this on the web.  I searched through the Android sources and found some references to `mView`, but I could not find the file in which this log message is printed.  For reference, I&#39;m using a Samsung Galaxy S4 running 4.2.2, or API 17.  The same message does NOT occur when debugging on a Nexus 7 running Android 4.3.  Any ideas?  Is this a Samsung-specific issue?


sendUserActionEvent() is null

I wanted to print the value of a variable on the console for my debugging purpose, but `System.out.println` doesn&#39;t work.

Android: How can I print a variable on eclipse console?

I am getting an error `Couldn&#39;t load memtrack module (No such file or directory) failed to load memtrack module: -2` at run time.

**StackTrace Error:**

     E/SoundPool(1280)       : error loading /system/media/audio/ui/Effect_Tick.ogg 
     E/SoundPool(1280)       : error loading /system/media/audio/ui/KeypressStandard.ogg       
     E/SurfaceFlinger(931)   : glCheckFramebufferStatusOES error 733995180
     E/memtrack(1873)        : Couldn&#39;t load memtrack module (No such file or directory)
     E/android.os.Debug(1873): failed to load memtrack module: -2
     E/libEGL(931)           : called unimplemented OpenGL ES API
     E/libEGL(931)           : called unimplemented OpenGL ES API
     E/libEGL(931)           : called unimplemented OpenGL ES API
     E/libEGL(931)           : called unimplemented OpenGL ES API
     E/SurfaceFlinger(931)   : glCheckFramebufferStatusOES error 733995180
     E/SurfaceFlinger(931)   : got GL_FRAMEBUFFER_COMPLETE_OES error while taking screenshot
     E/libEGL(931)           : called unimplemented OpenGL ES API
     E/libEGL(931)           : called unimplemented OpenGL ES API

**Manifest:**

    &lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
    
    &lt;manifest xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
        package=&quot;com.example.hive&quot;
        android:versionCode=&quot;1&quot;
        android:versionName=&quot;1.0&quot;&gt;
    
        &lt;uses-sdk
            android:minSdkVersion=&quot;8&quot;
            android:targetSdkVersion=&quot;19&quot; /&gt;
        
    &lt;uses-permission android:name=&quot;android.permission.INTERNET&quot;/&gt;
     &lt;uses-permission android:name=&quot;android.permission.WRITE_EXTERNAL_STORAGE&quot; /&gt;
     &lt;uses-permission android:name=&quot;android.permission.ACCESS_NETWORK_STATE&quot; /&gt;
        
        &lt;application
            android:allowBackup=&quot;true&quot;
            android:icon=&quot;@drawable/ic_launcher&quot;
            android:label=&quot;@string/app_name&quot; android:name=&quot;com.sit.gems.app.GemsApplication&quot;
            android:theme=&quot;@style/AppTheme&quot; &gt;
    
        &lt;activity
                android:name=&quot;com.sit.gems.activity.SplashActivity&quot;
                android:label=&quot;@string/app_name&quot; android:screenOrientation=&quot;portrait&quot;&gt;
                &lt;intent-filter&gt;
                    &lt;action android:name=&quot;android.intent.action.MAIN&quot; /&gt;
                    &lt;category android:name=&quot;android.intent.category.LAUNCHER&quot; /&gt;
                &lt;/intent-filter&gt;
            &lt;/activity&gt;
            &lt;activity android:name=&quot;com.sit.gems.activity.HomeActivity&quot; android:screenOrientation=&quot;portrait&quot;&gt;&lt;/activity&gt;
        &lt;/application&gt;
    
    &lt;/manifest&gt;

**SplashActivity.java:**

    package com.sit.gems.activity;
    import com.example.hive.R;
    import android.content.Intent;
    import android.os.Bundle;
    import android.support.v4.app.FragmentActivity;
    
    public class SplashActivity extends FragmentActivity {
    
    
    	@Override
    	protected void onCreate(Bundle savedInstanceState) {
    		super.onCreate(savedInstanceState);
    		setContentView(R.layout.layout_home);
    		startActivity(new Intent(SplashActivity.this,HomeActivity.class));
    		SplashActivity.this.finish();
    	}
    
    }

**layout_home.xml:**

    &lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
    &lt;LinearLayout xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
        android:layout_width=&quot;fill_parent&quot;
        android:layout_height=&quot;fill_parent&quot;
        android:orientation=&quot;vertical&quot; &gt;
    
        &lt;TabHost
            android:id=&quot;@android:id/tabhost&quot;
            android:layout_width=&quot;fill_parent&quot;
            android:layout_height=&quot;fill_parent&quot; &gt;
    
            &lt;RelativeLayout
                android:layout_width=&quot;fill_parent&quot;
                android:layout_height=&quot;fill_parent&quot; &gt;
    
                &lt;FrameLayout
                    android:id=&quot;@android:id/tabcontent&quot;
                    android:layout_width=&quot;fill_parent&quot;
                    android:layout_height=&quot;fill_parent&quot;
                    android:layout_above=&quot;@android:id/tabs&quot; &gt;
    
                    &lt;FrameLayout
                        android:id=&quot;@+id/tab_home&quot;
                        android:layout_width=&quot;fill_parent&quot;
                        android:layout_height=&quot;fill_parent&quot; /&gt;
    
                    &lt;FrameLayout
                        android:id=&quot;@+id/tab_video&quot;
                        android:layout_width=&quot;fill_parent&quot;
                        android:layout_height=&quot;fill_parent&quot; /&gt;
    
                    &lt;FrameLayout
                        android:id=&quot;@+id/tab_audio&quot;
                        android:layout_width=&quot;fill_parent&quot;
                        android:layout_height=&quot;fill_parent&quot; &gt;
                    &lt;/FrameLayout&gt;
    
                    &lt;FrameLayout
                        android:id=&quot;@+id/tab_blog&quot;
                        android:layout_width=&quot;fill_parent&quot;
                        android:layout_height=&quot;fill_parent&quot; &gt;
                    &lt;/FrameLayout&gt;
    
                    &lt;FrameLayout
                        android:id=&quot;@+id/tab_gal&quot;
                        android:layout_width=&quot;fill_parent&quot;
                        android:layout_height=&quot;fill_parent&quot; &gt;
                    &lt;/FrameLayout&gt;
    
                    &lt;FrameLayout
                        android:id=&quot;@+id/tab_more&quot;
                        android:layout_width=&quot;fill_parent&quot;
                        android:layout_height=&quot;fill_parent&quot; &gt;
                    &lt;/FrameLayout&gt;
                &lt;/FrameLayout&gt;
    
                &lt;TabWidget
                    android:id=&quot;@android:id/tabs&quot;
                    android:layout_width=&quot;fill_parent&quot;
                    android:layout_height=&quot;wrap_content&quot;
                    android:layout_alignParentBottom=&quot;true&quot;
                    android:background=&quot;@drawable/bottom_bar&quot;
                    android:divider=&quot;@null&quot; /&gt;
    
                &lt;!-- android:background=&quot;#d8e49c&quot; --&gt;
            &lt;/RelativeLayout&gt;
        &lt;/TabHost&gt;
    
    &lt;/LinearLayout&gt;

**Output:**

Finally it displays the blank screen.

![enter image description here][1]

Anybody know how to solve these errors?


  [1]: http://i.stack.imgur.com/foto5.png

Couldn&#39;t load memtrack module Logcat Error

Good day.I have very weird situation.The app crashes on some point but not as it usually will crash.The app goes back to previous activity or completelly quiting the application without showing the dialog &quot;UNFORTUNATALLY APP CLOSED&quot; and the android studio did not giving any exception log.This behaviour i assume is a crash...This happens on couple devices which are huaweu p8 lite with lollipop version(default kitkat) and sony xperia z with lollipop version (default 4.2.2).Im unable to debug the app at all and the crash at all...On the rest devices the app wont crash or wont restart or wont quit so i have no clue whats wrong with it...Please can you help me?




build gradle file which might be the option of weird &quot;crash&quot;

    buildscript {
        repositories {
            maven { url &#39;https://maven.fabric.io/public&#39; }
        }
    
        dependencies {
            classpath &#39;io.fabric.tools:gradle:1.19.2&#39;
        }
    }
    apply plugin: &#39;com.android.application&#39;
    apply plugin: &#39;io.fabric&#39;
    
    repositories {
        maven {
            url &#39;https://maven.fabric.io/public&#39;
        }
        maven {
            url &#39;https://github.com/suckgamony/RapidDecoder/raw/master/repository&#39;
        }
        maven {
            url &#39;https://dl.bintray.com/intercom/intercom-maven&#39;
        }
    }
    
    android {
        compileSdkVersion 22
        buildToolsVersion &quot;21.1.2&quot;
    
        defaultConfig {
            applicationId &quot;com.sparklingzoo.framkalla&quot;
            minSdkVersion 15
            targetSdkVersion 22
            versionCode 303
            versionName &quot;3.0.3&quot;
        }
        buildTypes {
            release {
                minifyEnabled false
                proguardFiles getDefaultProguardFile(&#39;proguard-android.txt&#39;), &#39;proguard-rules.pro&#39;
            }
        }
    }
    
    dependencies {
        compile fileTree(dir: &#39;libs&#39;, include: [&#39;*.jar&#39;])
        compile &#39;org.javatuples:javatuples:1.2&#39;
        compile &#39;com.android.support:appcompat-v7:22.1.1&#39;
        compile &#39;com.loopj.android:android-async-http:1.4.7&#39;
        compile &#39;uk.co.chrisjenx:calligraphy:2.1.0&#39;
        compile &#39;rapid.decoder:library:0.3.0&#39;
        compile &#39;rapid.decoder:jpeg-decoder:0.3.0&#39;
        compile &#39;rapid.decoder:png-decoder:0.3.0&#39;
        compile &#39;de.hdodenhof:circleimageview:2.0.0&#39;
        compile &#39;com.github.siyamed:android-shape-imageview:0.9.+@aar&#39;
        compile &#39;com.facebook.android:facebook-android-sdk:4.1.1&#39;
        compile(&#39;com.wu-man:android-oauth-client:0.0.3&#39;) {
            exclude module: &#39;support-v4&#39;
        }
        compile project(&#39;:pk-library&#39;)
        compile &#39;com.stripe:stripe-android:1.0.0&#39;
        compile(&#39;com.crashlytics.sdk.android:crashlytics:2.2.4@aar&#39;) {
            transitive = true;
        }
        compile (&#39;io.intercom.android:intercom-sdk:1.+@aar&#39;) {
            transitive = true
        }
        compile &#39;com.mixpanel.android:mixpanel-android:4.6.0&#39;
    //    compile &#39;com.google.android.gms:play-services:6.5.87&#39;
        compile &#39;com.parse.bolts:bolts-android:1.2.0&#39;
        compile files(&#39;libs/AF-Android-SDK-v3.3.0.jar&#39;)
    }



Android App crashes without any logcat or any exception

It is really hard to follow up Android logcat output all in a same color.

Is there any way to change the log colors?

Android Studio Logcat colors

I&#39;m using Android Studio for **Flutter** App Development. Everything seems to be working fine just that the Android Studio does not show the &quot;logs&quot; in Logcat. In the Logcat section, it says &quot;Please Configure Android SDK&quot;. Which is already configured. And in the Logcat section says &quot;No Connected Devices.&quot; in the drop-down menu. When it has recognized my Android Phone and is showing it just under the Menu bar. 

Is there a fix for it? Is there something I am missing?  

[![enter image description here][1]][1]


  [1]: https://i.stack.imgur.com/m2FOE.png

Android Studio not showing Logcat with Flutter

By default, when I change `Build Variants` to `release` I don&#39;t get any Logs on the logcat, but I do need to read release logs of my app, how can I enable this? 

Enable LogCat on Release Build in Android Studio

I am getting lots of this kind of logcat messages related to my application.

`11-19 19:04:23.872  3327  3440 I chatty  : uid=10085 com.xxxx.yyy expire 18 lines`

What are these log messages? Am I missing my actual application logcat logs here?


android logcat logs chatty module line expire message

When I run almost any app on android studio, my logcat gets full of messages like:

&quot;? E/GnssHAL_GnssInterface: gnssSvStatusCb: a: input svInfo.flags is 8
? E/GnssHAL_GnssInterface: gnssSvStatusCb: b: input svInfo.flags is 8&quot;

What&#39;s this? Is there something wrong about my app?

Logcat full of &quot;input svInfo.flags is 8&quot; while app is running

I have an Android application that &quot;spams&quot; the LogCat and I would like to remove its logcat entries in order to have an output more readable.

Is it possible to have a filter that remove the LogCat entries for a specific tag name? Or a search pattern that does the trick?


How to filter out a tagname in Eclipse LogCat viewer

Is there an easy way to print the contents of a `Bundle` to Logcat if you can&#39;t remember the names of all the keys (even being able to print just the key names would be cool)?

Print the contents of a Bundle to Logcat?

I&#39;m making an android app in Android Studio, integrating ParseCloud and when I try to retrieve some **JSONObject** from the cloud, I get this error message after step-debugging:

&gt; 12-13 13:32:34.857 25631-25638/com.parse.starter A/art: art/runtime/barrier.cc:90] Check failed: count_ == 0 (count_=-1, 0=0) Attempted to destroy barrier with non zero count

&gt; 12-13 13:32:34.858 25631-25638/com.parse.starter A/art: art/runtime/runtime.cc:366] Runtime aborting --- recursively, so no thread-specific detail!

&gt; 12-13 13:32:34.863 25631-25638/com.parse.starter A/art: art/runtime/runtime.cc:366] 

&gt; 12-13 13:32:34.882 25631-25638/com.parse.starter A/libc: Fatal signal 6 (SIGABRT), code -6 in tid 25638 (JDWP)

Problem arises in this piece of code in **ParseDecoder.java**, precisely on the `while` line:

    Map&lt;String, Object&gt; convertJSONObjectToMap(JSONObject object) {
        Map&lt;String, Object&gt; outputMap = new HashMap&lt;&gt;();
        Iterator&lt;String&gt; it = object.keys();
        while (it.hasNext()) {
          String key = it.next();
          Object value = object.opt(key);
          outputMap.put(key, decode(value));
        }
        return outputMap;
    }

As I&#39;ve seen while debugging, the object I wait for is created and is filled with one entry, but then this happens and I&#39;m little bit lost... Any guidance will be great, thank you very much!


Logcat error message - Attempted to destroy barrier with non zero count

I am using Android Studio 1.5.1 and it clears the logcat buffer during app restart. Now my app crashes, restarts and I don&#39;t see what happens just before the crash.

Is there a way for logcat in Android Studio not to clear during the app restart? I wanted to increase the logcat buffer size, but could not find the option it in the current version of AS. 

Prevent Android logcat clear during app restart

If you see the Android logs, you may see a lot of those things.

What do they mean, knowing those may help us doing better memory allocations.

Example:

     28470               dalvikvm  D  GC_FOR_MALLOC freed 665 objects / 239992 bytes in 71ms
     28470               dalvikvm  D  GC_FOR_MALLOC freed 673 objects / 240288 bytes in 87ms
     21940               dalvikvm  D  GC_EXPLICIT freed 4802 objects / 185320 bytes in 78ms
     28470               dalvikvm  D  GC_FOR_MALLOC freed 666 objects / 240536 bytes in 63ms



What do GC_FOR_MALLOC, GC_EXPLICIT, and other GC_* mean in Android Logcat?

I am getting the above error: 

&gt; error opening trace file: No such file or directory (2)

when I run my android application on the emulator.  Can someone tell me what could be the possible reason for this?

I am using android-sdk-20 and below lines are added to AndroidManifest.xml

    &lt;uses-sdk android:minSdkVersion=&quot;14&quot; android:targetSdkVersion=&quot;15&quot; /&gt;

I have also added the line:

    &lt;uses-permission android:name=&quot;android.permission.WRITE_EXTERNAL_STORAGE&quot; /&gt;

since I thought that there may be some issue with writing to the sd card.


error opening trace file: No such file or directory (2)

I&#39;m not sure if this kind of question been asked before (I did Google it but not found the proper way to solve my question).

   *what I hope is I can disable (exclude) Log Tag from libraries used in my project.*

I tried to go in **Logcat console &gt; Edit Filter Configuration &gt; Log Tag(regex)** but here I have to add new Log Tag every time I create it. (and this way will not show any exception in my logcat)

Same as this topic https://stackoverflow.com/questions/19931987/how-to-filter-logcat-in-android-studio  I selected  **select the process running** as @dmsherazi suggest but I still can see lots of log tag from libraries.

So, is there a way to exclude specific log tag in android studio (I&#39;m using v1.2 beta3)?




How to exclude Log Tag in logcat Android Studio?

Periodically LogCat will stop showing messages even though I am in debug mode.  At other times it will display only one line at a time!  I have a solution, restart eclipse. But I would like to understand this better.  It takes too much time to restart eclipse when this happens.  I have seen this behavior on the emulator and connected to a device.  Either the LogCat shows one line with no history or nothing. 

LogCat Stops Running in Eclipse Needs Restart

Does anyone know if there a way to increase the size of the logcat history/buffer in Android Studio? I remember there was a way to do it in Eclipse and was hoping Android Studio had a similar setting.

Android Studio logcat history/buffer size

Shutting off *my own* app&#39;s LogCat output before releasing an app to the market is straightforward. I also know how to selectively filter LogCat message by tag and/or id for my own debug convenience.

But now I am interested in something that may be much more difficult (perhaps impossible?): Disable all LogCat output, including &amp; especially those coming from 3rd-party services like TtsService, GoogleLoginService, etc.

Is this possible?

To further clarify: I am *not* interested in filtering out messages for myself. I am rather interested in disabling 3rd-party messages for whoever downloads my app from the Android Market. Is this possible?


Disable LogCat Output COMPLETELY in release Android app?

In my project, I receive the following in a `logcat` message, for each `TextView` in all views of my app:

    D/TextView: setTypeface with style : 0

The theme I used in `styles.xml`:

&lt;!-- language: xml --&gt;

    &lt;style name=&quot;GreenTheme&quot; parent=&quot;Base.Theme.AppCompat.Light&quot;&gt;
        &lt;item name=&quot;colorPrimary&quot;&gt;@color/primaryGreen&lt;/item&gt;
        &lt;item name=&quot;colorPrimaryDark&quot;&gt;@color/primaryDarkGreen&lt;/item&gt;
        &lt;item name=&quot;colorAccent&quot;&gt;@color/accentGreen&lt;/item&gt;

        &lt;item name=&quot;windowActionBar&quot;&gt;false&lt;/item&gt;
        &lt;item name=&quot;windowNoTitle&quot;&gt;true&lt;/item&gt;
    &lt;/style&gt;

I also use `buildToolsVersion &quot;26.0.1&quot;`

I have also tried to use `Theme.AppCompat.Light.NoActionBar` as the parent theme. The messages still get logged.

**UPDATE 1**

After some tests i have found that this occurs only with `*.Theme.AppCompat.Light.*` themes. 

`Theme.AppCompat.Light.NoActionBar` is most often used and comes in every tutorial for material design.

How can this issue be fixed?

**UPDATE 2**

*Note*: When using an emulator, this message does not show. It&#39;s most likely a device issue.

Android Studio logger TextView TypeFace style 0

Anyone knows what does this error mean? I get it in LogCat shell every time I connect with my android application to Facebook (via emulator).

The code which in charge of authorize functionality:

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.authorize);
		mPrefs = getPreferences(MODE_PRIVATE);
		loginPref = PreferenceManager.getDefaultSharedPreferences(getBaseContext());
        String access_token = mPrefs.getString(&quot;access_token&quot;, null);
        long expires = mPrefs.getLong(&quot;access_expires&quot;, 0);
        if(access_token != null) {
        	Singelton.mFacebook.setAccessToken(access_token);
        }
        if(expires != 0) {
        	Singelton.mFacebook.setAccessExpires(expires);
        }
		
    	Singelton.mFacebook.authorize(this, new String[] {&quot;email&quot;,&quot;user_birthday&quot;}, new DialogListener() {
            @Override
            public void onComplete(Bundle values) {
                SharedPreferences.Editor editor = mPrefs.edit();
                editor.putString(&quot;access_token&quot;, Singelton.mFacebook.getAccessToken());
                editor.putLong(&quot;access_expires&quot;, Singelton.mFacebook.getAccessExpires());
                editor.commit();
                SharedPreferences.Editor logEditor = loginPref.edit();
                logEditor.putBoolean(&quot;login&quot;, true);
                logEditor.commit();
                addUser();
            }

            @Override
            public void onFacebookError(FacebookError error) {
            	errorHandler();
            }

            @Override
            public void onError(DialogError e) {
            	errorHandler();
            }

            @Override
            public void onCancel() {
            	Log.d(&quot;MyApp&quot;, &quot;Facebook cancel&quot;);
            }
        });
			
	}

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        Singelton.mFacebook.authorizeCallback(requestCode, resultCode, data);
    }

Failed to find provider info for com.facebook.katana.provider.AttributionIdProvider

I have been using Eclipse for Android (most up to date version), for a while with no problems with the Logcat. For an unknown reason, Logcat is no longer retaining the debug messages. Logcat is getting cleared in about 5 seconds . Is there any way to prevent the auto-clearing of Logcat messages? Otherwise I am unable to read the messages. 

All Logcat Solutions on Gang of Coders

Total of 42 Logcat Solutions