It seems to be a layout bug. 

Drag one of the column headers in the device chooser where the device should be and change the column width and it magically appears!

![Workaround for bug in Android Device Chooser][1]


  [1]: http://i.stack.imgur.com/JjAYl.gif

You can also double click the device&#39;s row even when it&#39;s hidden, so you don&#39;t have to resize the column each time.

Another working solution is:

**Disconnect and reconnect the device while the Android Device Chooser Popup is open.**

If you have more than one device connected, tap the down arrow on your keyboard to reveal the hidden device. Then click OK or press Enter like normal. Otherwise, just press Enter. The device is already there, just not visible.

Similar problem, after upgrading to Yosemite, but with a BlackBerry 10 device running an Android build from Eclipse.

Solution:&lt;br/&gt;
Run app and wait for the Android Device Chooser to popup.  My dialog showed an empty list.
Whilst the dialog is showing, disconnect and reconnect the device via the BlackBerry adb proxy.  After doing so, the BlackBerry device automatically showed up in the dialog and I could choose it and run the build successfully.

What worked for me was ticking on/off the USB debugging mode in the device Developers options, but the solution in the selected answer is better...



It seems like a Eclipse UI view refresh issue new to Yosemite.  I notice that my logcat filter textview goes completely white as soon as it loses focus - making it look like you have no filter defined. Gross.

i am using digitalocean and trying to install and start tomcat on ubuntu but unfortunately i can not do it. (created new droplets and tried 10 times)

***1GB Ram 30GB SSD Disk Amsterdam 2 Ubuntu 14.04 x64***

When i start tomcat, it says &quot;Tomcat started&quot;. But i can not access page from browser. and ./shutdown.sh returns error. 

What can be the problem ? 

**I noticed something now. While i am writing this question, tomcat page is displayed. it took 28 minutes to display the page** 

catalina.out says: **INFO: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [1,718,769] milliseconds.**

Here are my installation steps (These steps works on different vps but doesn&#39;t work on digitalocean droplets):

Install oracle jdk

     sudo apt-get install python-software-properties
     sudo add-apt-repository ppa:webupd8team/java
     sudo apt-get update
     sudo apt-get install oracle-java7-installer
     sudo apt-get install oracle-java7-set-default
          java -version
          java version &quot;1.7.0_72&quot;
          Java(TM) SE Runtime Environment (build 1.7.0_72-b14)
          Java HotSpot(TM) 64-Bit Server VM (build 24.72-b04, mixed mode)


Set java path

          sudo nano /etc/environment
          JAVA_HOME=&quot;/usr/lib/jvm/java-7-oracle&quot;
          source /etc/environment
          wget http://ftp.itu.edu.tr/Mirror/Apache/tomcat/tomcat-7/v7.0.56/bin/apache-tomcat-7.0.56.tar.gz
          tar xvzf apache-tomcat-7.0.56.tar.gz
          mv apache-tomcat-7.0.56/ apache-tomcat-7.0.56-server-1/

Start Tomcat

			./startup.sh
				Using CATALINA_BASE:   /usr/local/apache-tomcat-7.0.56-server-1
				Using CATALINA_HOME:   /usr/local/apache-tomcat-7.0.56-server-1
				Using CATALINA_TMPDIR: /usr/local/apache-tomcat-7.0.56-server-1/temp
				Using JRE_HOME:        /usr/lib/jvm/java-7-oracle/jre
				Using CLASSPATH:       /usr/local/apache-tomcat-7.0.56-server-1/bin/bootstrap.jar:/usr/local/apache-tomcat-7.0.56-server-1/bin/tomcat-juli.jar
				Tomcat started.

Checkout Port 8080	

			netstat -ln	
				tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN
				tcp6       0      0 :::8009                 :::*                    LISTEN
				tcp6       0      0 :::8080                 :::*                    LISTEN
				tcp6       0      0 :::22                   :::*                    LISTEN

Checkout process

                ps -ef | grep tomcat
				root      2825     1  1 14:23 pts/0    00:00:03 /usr/lib/jvm/java-7-oracle/jre/bin/java -Djava.util.logging.config.file=/usr/local/apache-tomcat-7.0.56-server-1/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.endorsed.dirs=/usr/local/apache-tomcat-7.0.56-server-1/endorsed -classpath /usr/local/apache-tomcat-7.0.56-server-1/bin/bootstrap.jar:/usr/local/apache-tomcat-7.0.56-server-1/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/apache-tomcat-7.0.56-server-1 -Dcatalina.home=/usr/local/apache-tomcat-7.0.56-server-1 -Djava.io.tmpdir=/usr/local/apache-tomcat-7.0.56-server-1/temp org.apache.catalina.startup.Bootstrap start

Open web site at port 8080 `http://5.101.107.56:8080/`  Page is waiting... [content is displayed after 28 minute or more]

Try to shutdown tomcat if content is not displayed yet (before tomcat starts properly).

          ./shutdown.sh 
				SEVERE: Could not contact localhost:8005. Tomcat may not be running.
				Oct 17, 2014 2:40:29 PM org.apache.catalina.startup.Catalina stopServer
				SEVERE: Catalina.stop:
					java.net.ConnectException: Connection refused
					at java.net.PlainSocketImpl.socketConnect(Native Method)
					at java.net.AbstractPlainSoc


Checkout logs

          catalina.out
				Oct 17, 2014 2:31:47 PM org.apache.coyote.AbstractProtocol init
				INFO: Initializing ProtocolHandler [&quot;ajp-bio-8009&quot;]
				Oct 17, 2014 2:31:47 PM org.apache.catalina.startup.Catalina load
				INFO: Initialization processed in 1492 ms
				Oct 17, 2014 2:31:47 PM org.apache.catalina.core.StandardService startInternal
				INFO: Starting service Catalina
				Oct 17, 2014 2:31:47 PM org.apache.catalina.core.StandardEngine startInternal
				INFO: Starting Servlet Engine: Apache Tomcat/7.0.56
				Oct 17, 2014 2:31:47 PM org.apache.catalina.startup.HostConfig deployDirectory
				INFO: Deploying web application directory /usr/local/apache-tomcat-7.0.56-server-1/webapps/host-manager

I also installed nginx and navigate to `http://5.XXX.XXX.XX/` nginx welcome page is opened immediately



I checked catalina.out when i see the page in browser, it says: 

        Oct 17, 2014 2:31:47 PM org.apache.catalina.startup.HostConfig deployDirectory
        INFO: Deploying web application directory /usr/local/apache-tomcat-7.0.56-server-1/webapps/host-manager
        Oct 17, 2014 3:00:27 PM org.apache.catalina.util.SessionIdGenerator createSecureRandom
        INFO: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took **[1,718,769] milliseconds.**

Memory:

                   total       used       free     shared    buffers     cached
      Mem:       1017912     849512     168400        332      18780     688468



Tomcat7 starts too late on Ubuntu 14.04 x64 [Digitalocean]

I&#39;m trying to open a directory in sublime Text 3.

I can launch sublime from the command line using the `subl` command.

The help text show the following:

    Sublime Text build 3059
    
    Usage: subl [arguments] [files]         edit the given files
       or: subl [arguments] [directories]   open the given directories
       or: subl [arguments] -               edit stdin
    
    Arguments:
      --project &lt;project&gt;: Load the given project
      --command &lt;command&gt;: Run the given command
      -n or --new-window:  Open a new window
      -a or --add:         Add folders to the current window
      -w or --wait:        Wait for the files to be closed before returning
      -b or --background:  Don&#39;t activate the application
      -s or --stay:        Keep the application activated after closing the file
      -h or --help:        Show help (this message) and exit
      -v or --version:     Show version and exit
    
    --wait is implied if reading from stdin. Use --stay to not switch back
    to the terminal when a file is closed (only relevant if waiting for a file).
    
    Filenames may be given a :line or :line:column suffix to open at a specific
    location.
    

Thus to open a directory I should be able to use the following 

`subl ./folder_name`

but that does not work for me. Sublime does open (with a empty new document) and I cannot see the folder in the side bar.

Am I doing it wrong...

BTW. I&#39;m using the fish shell with the &#39;Oh my fish&#39; Add-on (I have also added the sublime add- on)... 

Open a folder in Sublime Text 3 using command line

After upgrading to OS X Yosemite I found that eclipse was not working because JAVA was not properly installed. I installed it and now I am able to open eclipse. 

When I connect my device, I am able to see my device on the device list in eclipse. However when I run my project, I am unable to see it on Android device chooser. My device is getting detected by Eclipse but I am not able to select it to run.

This was working perfectly on my previous OS X Mavericks! Please help!

Thanks

Just upgraded my OS X to Yosemite, Android Device Chooser not showing device - what to do?

After upgrading to OS X Yosemite I found that eclipse was not working because JAVA was not properly installed. I installed it and now I am able to open eclipse.
When I connect my device, I am able to see my device on the device list in eclipse. However when I run my project, I am unable to see it on Android device chooser. My device is getting detected by Eclipse but I am not able to select it to run.
This was working perfectly on my previous OS X Mavericks! Please help!
Thanks

It&#39;s possible to use expandable list items with new RecyclerView? Like ExpandableListView?

Expandable list with RecyclerView?

I am working on one demo application where I want to apply animation whenever app start any `activity`. I wrote below code but this is for to animate the activity from left to right.

left_to_right.xml

    &lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
    
    &lt;set xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
        android:shareInterpolator=&quot;false&quot;&gt;
        &lt;translate android:fromXDelta=&quot;-100%&quot; android:toXDelta=&quot;0%&quot;
            android:fromYDelta=&quot;0%&quot; android:toYDelta=&quot;0%&quot;
            android:duration=&quot;500&quot;/&gt;
    &lt;/set&gt;

right_to_left.xml

    &lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
    
    &lt;set xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
        android:shareInterpolator=&quot;false&quot;&gt;
        &lt;translate
            android:duration=&quot;500&quot;
            android:fromXDelta=&quot;0%&quot;
            android:fromYDelta=&quot;0%&quot;
            android:toXDelta=&quot;100%&quot;
            android:toYDelta=&quot;0%&quot; /&gt;
    &lt;/set&gt;

I am here starting an `activity` like this

    startActivity(new Intent(this, LoginActivity.class));
    overridePendingTransition(R.anim.left_to_right, R.anim.right_to_left);

I want to achieve an animation right to left. How this can be done.

Thanks in advance.




How to achieve right to left animation to start the activity

When attempting to use the latest appcompat-v7 support library in my project, I get the following error:

    /Users/greg/dev/mobile/android_project/app/build/intermediates/exploded-aar/com.android.support/appcompat-v7/21.0.0/res/values-v11/values.xml
    Error:(36, 21) No resource found that matches the given name: attr &#39;android:actionModeShareDrawable&#39;.
    Error:(36, 21) No resource found that matches the given name: attr &#39;android:actionModeShareDrawable&#39;.
    Error:(36, 21) No resource found that matches the given name: attr &#39;android:actionModeShareDrawable&#39;.
    Error:(36, 21) No resource found that matches the given name: attr &#39;android:actionModeShareDrawable&#39;.

How do I fix this?

appcompat-v7:21.0.0&#39;: No resource found that matches the given name: attr &#39;android:actionModeShareDrawable&#39;

Background
--
Google has deprecated the function &quot;[**`getRecentTasks`**][1]&quot; of &quot;ActivityManager&quot; class. Now all it does is to get the list of apps that the current app has opened.

I&#39;ve even written a post about it [**here on StackOverflow**][2], but I noticed it&#39;s impossible.

The problem
--
I&#39;ve made a post about it ([**here**][3], and another, similar one created by someone else, [**here**][4]) and requested to re-consider it, and Google decided to make a new class, that seem to provide a similar functionality (more like statistics, but might also be useful), but I can&#39;t find out how to use it.

The class is called &quot;`UsageStatsManager`&quot;, and my guess is that the function &quot;[**`queryUsageStats`**][5]&quot; does the job.

Also, it seems it has a new permission (&quot;`android.permission.PACKAGE_USAGE_STATS`&quot;), which is a *system permission*, but it&#39;s written that:

&gt; declaring the permission implies intention to use the API and the user
&gt; of the device can grant permission through the Settings application.

[**Here&#39;s**][6] another link about this new functionality.

What I&#39;ve found
--
I&#39;ve looked at the code of Android, and noticed that &quot;Context&quot; has USAGE_STATS_SERVICE , which in the JavaDocs say the next thing:

    /**
     * Use with {@link #getSystemService} to retrieve a {@link
     * android.app.UsageStatsManager} for interacting with the status bar.
     *
     * @see #getSystemService
     * @see android.app.UsageStatsManager
     * @hide
     */
    public static final String USAGE_STATS_SERVICE = &quot;usagestats&quot;;

The weird thing is that not only it says &quot;`status bar`&quot;, but also the packageName doesn&#39;t match (should be &quot;`android.app.usage.UsageStatsManager`&quot; instead) .

I&#39;ve also added the correct permission:

    &lt;uses-permission
        android:name=&quot;android.permission.PACKAGE_USAGE_STATS&quot;
        tools:ignore=&quot;ProtectedPermissions&quot; /&gt;

and here&#39;s the code I use:

      final UsageStatsManager usageStatsManager=(UsageStatsManager)context.getSystemService(&quot;usagestats&quot;);// Context.USAGE_STATS_SERVICE);
      final int currentYear=Calendar.getInstance().get(Calendar.YEAR);
      final List&lt;UsageStats&gt; queryUsageStats=usageStatsManager.queryUsageStats(UsageStatsManager.INTERVAL_YEARLY,currentYear-2,currentYear);

In the emulator itself, I went to &quot;***`Settings&quot;-&gt;&quot;security&quot;-&gt;&quot;apps with usage access`***&quot; , and enabled my app.

***However, when running the code, all I get is an empty list...***

The question
--
How do you use `UsageStatsManager` ? 

Also, how do you let the user to grant the permission in the easiest way possible? Or is it automatically done, as soon as the app tries to get the needed information?

What happens when trying to use this class yet the user hasn&#39;t confirmed it yet?

How can I make the code return me a real list of apps?

  [1]: http://developer.android.com/reference/android/app/ActivityManager.html#getRecentTasks(int,%20int)
  [2]: https://stackoverflow.com/questions/24590533/how-to-get-recent-tasks-on-android-l
  [3]: https://code.google.com/p/android-developer-preview/issues/detail?id=507
  [4]: https://code.google.com/p/android-developer-preview/issues/detail?id=29
  [5]: http://developer.android.com/reference/android/app/usage/UsageStatsManager.html#queryUsageStats(int,%20long,%20long)
  [6]: https://developer.android.com/about/versions/android-5.0.html#System

How to use UsageStatsManager?

---

**Update (11/10/14): Genymotion has released 2.3.1 which fixes this issue. https://cloud.genymotion.com/page/changelog/#231**

---

Update (10/21/14): Genymotion replied to my support email and indicated the solution recommended by @plackemacher below is the suggested fix at the moment. They are aware of the issue.

----

Since upgrading to Lollipop, I&#39;m having adb issues when using a Genymotion emulator. Devices don&#39;t show up in Android Studio, and I&#39;ve also gotten the following error when trying to run `adb devices`:

    $ adb devices

    adb server is out of date.  killing...
    cannot bind &#39;tcp:5037&#39;
    ADB server didn&#39;t ACK
    * failed to start daemon *
    error:

I&#39;m not sure if it&#39;s because of the Lollipop upgrade or coincidence. 


**Edit/update**: 

Per Chris Satton&#39;s comment, I investigated if multiple adb processes were running (`ps aux | grep adb`), and it looks like it&#39;s a Genymotion conflict(?). It looks to include its own version of adb.

&gt; greg      72550   0.0  0.0   611164   1508   ??  S     4:14PM  
&gt; 0:00.02
&gt; /Applications/Genymotion.app/Contents/MacOS/player.app/Contents/MacOS/tools/adb
&gt; -s 192.168.56.102:5555 shell 
&gt;
&gt; greg      72523   0.0  0.0   635956   2296   ??  S     4:14PM   0:00.02 adb -P 5037 fork-server server

Android Studio - Lollipop, ADB, &amp; Genymotion issues: Devices won&#39;t show up. &quot;adb server is out of date. killing...&quot;

Just installed a fresh version of Kepler 64bit &quot;for Java Developers&quot; on Yosemite, getting this error on first launch. Any thoughts on how to fix? Really do not want to downgrade my Java version!

To open &quot;Eclipse&quot; you need to install the legacy Java SE 6 runtime

I just updated Java to 1.8 u25, and now I get this message every time I try to open Eclipse

![enter image description here][1]

I have no clue what I&#39;m doing wrong, when it comes to Eclipse. I have re-downloaded it number of times but still cannot get it to work. How could I fix this?

This is my eclipse.ini file

    -startup
    plugins/org.eclipse.equinox.launcher_1.3.0.v20140415-2008.jar
    --launcher.library
    plugins/org.eclipse.equinox.launcher.win32.win32.x86_64_1.1.200.v20140603-1326
    -product
    org.eclipse.epp.package.standard.product
    --launcher.defaultAction
    openFile
    --launcher.XXMaxPermSize
    256M
    -showsplash
    org.eclipse.platform
    --launcher.XXMaxPermSize
    256m
    --launcher.defaultAction
    openFile
    -vm
    C:\Program Files (x86)\Java\jdk1.8.0_25\jre\bin
    --launcher.appendVmargs
    -vmargs
    -Dosgi.requiredJavaVersion=1.8
    -Xms40m
    -Xmx512m


  [1]: http://i.stack.imgur.com/FrjmA.png

Eclipse: Java was started but returned error code=13

Why does one long string take MORE space than lots of small strings?

Where can I download Eclipse Android Bundle? Google now directed you to download Android Studio or to download Eclipse SDK integration but I want to find Eclipse Android bundle. I searched in Google and Eclipse web site but can&#39;t find any link. 

Do you know any **site**, **ftp** etc. to download bundle? 

Thanks.

Where can I download Eclipse Android bundle?

I am new to Android Studio and want to know about shortcuts.
In Eclipse we use &lt;kbd&gt;shift-ctrl-O&lt;/kbd&gt; for importing. In Android Studio we use
 &lt;kbd&gt;alt-enter&lt;/kbd&gt;. My question about importing override methods and unimplemented methods. Is there a shortcut for these in Android Studio?

Android Studio shortcuts like Eclipse

When I tried to build and run, Xcode said my device was locked. I looked at my iPhone, and it&#39;s not locked at all. How do I fix this?

Xcode &quot;Device Locked&quot; When iPhone is unlocked

In R, it is possible to hold a device, draw the picture, and then flush the device to render the graphics. This is useful for very complex plots with thousands of data points, color gradients etc since without holding, the device would be refreshed after each plotting operation. It works quite well.

However, once the plot is in place, any window operation such as a resize will cause the plot to be refreshed -- however, this time without holding and flushing the device, but plotting the plot elements one by one and refreshing the display each time. This is extremely annoying.

Clearly, I could call manually `dev.hold` before resizing the window, but this is not a real solution.

Is there a way of telling R that the device should be put on hold for operations such as resize?

dev.hold, dev.flush and resizing windows

In computer vision and object detection, the common evaluation method is mAP. 
What is it and how is it calculated?

Content Type	Original Author	Original Content on Stackoverflow
Question	joel	View Question on Stackoverflow
Solution 1 - Android	Matt	View Answer on Stackoverflow
Solution 2 - Android	Mehlyfication	View Answer on Stackoverflow
Solution 3 - Android	jakeneff	View Answer on Stackoverflow
Solution 4 - Android	Sean	View Answer on Stackoverflow
Solution 5 - Android	Guy S	View Answer on Stackoverflow
Solution 6 - Android	Michael	View Answer on Stackoverflow

Just upgraded my OS X to Yosemite, Android Device Chooser not showing device - what to do?

Android Problem Overview

Android Solutions

Solution 1 - Android

Solution 2 - Android

Solution 3 - Android

Solution 4 - Android

Solution 5 - Android

Solution 6 - Android

Open a folder in Sublime Text 3 using command line

Tomcat7 starts too late on Ubuntu 14.04 x64 [Digitalocean]

Attributions