Running this command will start a web browser in android:

    adb shell am start -a android.intent.action.VIEW -d http://www.stackoverflow.com

If your url&#39;s are symbol heavy you should also quote aggressively

    adb shell am start -a android.intent.action.VIEW -d &#39;http://stackoverflow.com/?uid=isme\&amp;debug=true&#39;



If you want to start Chrome specifically

    adb shell am start \
    -n com.android.chrome/com.google.android.apps.chrome.Main \
    -a android.intent.action.VIEW -d &#39;file:///sdcard/lazer.html&#39;

Also give Chrome access to sdcard via

    adb shell pm grant com.android.chrome android.permission.READ_EXTERNAL_STORAGE

Swap com.android.chrome with com.chrome.canary if you are using Chrome canary version.

I wanted to start silk on my kindle via adb, without adding a new url. I came up with this:

    adb shell am start -n com.amazon.cloud9/.browsing.BrowserActivity

You can open the default web browser with keyevents too (it&#39;s possible to write KEYCODE_EXPLORER instead of 64)

    adb shell input keyevent 64
Enter an url submit: (66 -&gt; KEYCODE_ENTER)

    adb shell input text &quot;stackoverflow.com&quot; &amp;&amp; adb shell input keyevent 66

I add `--user 0` after start and work in jackpal emulator like this: 

`adb shell am start --user 0 -a android.intent.action.VIEW -d http://www.stackoverflow.com`

When I render a partial which does not exists, I get an Exception. I&#39;d like to check if a partial exists before rendering it and in case it doesn&#39;t exist, I&#39;ll render something else. I did the following code in my .erb file, but I think there should be a better way to do this:

        &lt;% begin %&gt;
          &lt;%= render :partial =&gt; &quot;#{dynamic_partial}&quot; %&gt;
        &lt;% rescue ActionView::MissingTemplate %&gt;
          Can&#39;t show this data!
        &lt;% end %&gt;

Is there any Rails function to check if a partial exists?

How do I call a class from a string containing that class name inside of it?  (I guess I could do case/when but that seems ugly.)

The reason I ask is because I&#39;m using the `acts_as_commentable` plugin, among others, and these store the commentable_type as a column.  I want to be able to call whatever particular commentable class to do a `find(commentable_id)` on it.

Thanks.

ruby convert class name in string to actual class

How can I start a browser with the `adb shell` command and make it open a certain web page?

Need command line to start web browser using adb

<p>How can I start a browser with the <code>adb shell</code> command and make it open a certain web page?</p>


I would like to know if it is possible to have a service that is started with startService and then be able to also bind to that service and do some remote procedure calls?
according to this:[http://developer.android.com/guide/topics/fundamentals.html#servlife][1]

the two services have different lifecycle so it&#39;s not possible,does anyone know about it?



  [1]: http://developer.android.com/guide/topics/fundamentals.html#servlife

android service startService() and bindService()

This code doesn&#39;t work:

    URL         url   = new URL( xmlPath );
    InputSource input = new InputSource( url.openStream() );

all the time, resulting in an UnknownHostException, even when the host exists, has been hit successfully using the same code if from a different development host (machine), and also from a browser.

I&#39;m probably out of line asking this question again, a repeat of https://stackoverflow.com/questions/3293659/android-java-net-unknownhostexception-host-is-unresolved-strategy-question. The forum software would not allow me to comment on the unsatisfactory answer to that question (in order to solicit more attention to the solution I ultimately found). Perhaps I&#39;m not popular enough yet to be given that privilege. In the meantime, I&#39;m essentially re-posting the question and a different answer.

Basically, I accept that maybe the Android device has a hard time with DNS under certain circumstances, but I&#39;ve tried, for example the anddev.org example of how to use the SAX parser, and it worked on one machine I have and not on another.

Edit:
As noted, I know a working answer and will post it.

I am a) asking a question (that&#39;s already been asked and unsuccessfully answered) and b) answering it for the benefit of those for whom my answer will be useful.

Android java.net.UnknownHostException: Host is unresolved

I have a ListView with different layouts for different items.  Some items are separators.  Some items are different because they hold different kinds of data, etc.

I want to implement ViewHolders to speed up the getView process, but I&#39;m not quite sure how to go about it.  Different layouts have different pieces of data (which makes naming difficult) and different numbers of Views I want to use.

How should I go about doing this?

The best idea I can come up with is to create a generic ViewHolder with X items where X is the number of Views in an item layout with the highest number of them.  For the other views with a small number of Views, I&#39;ll just use a subsection of those variables in the ViewHolder.  So say I have 2 layouts I use for 2 different items.  One has 3 TextViews and the other has 1.  I would create a ViewHolder with 3 TextView variables and only use 1 of them for my other item.  My problem is that this can get really ugly looking and feels really hacky; especially when an item layout may have many Views of many different types.






Here is a very basic getView:

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
    	
    	MyHolder holder;
    	
    	View v = convertView;
    	if (v == null) {
    		LayoutInflater vi = (LayoutInflater)getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    		v = vi.inflate(R.layout.layout_mylistlist_item, parent, false);
    		
    		holder = new MyHolder();
    		holder.text = (TextView) v.findViewById(R.id.mylist_itemname);
    		v.setTag(holder);
        }
    	else {
    		holder = (MyHolder)v.getTag();
    	}
    	
    	MyListItem myItem = m_items.get(position);
    	
    	// set up the list item
    	if (myItem != null) {
    		// set item text
    		if (holder.text != null) {
    			holder.text.setText(myItem.getItemName());
    		}
    	}
    	
        // return the created view
    	return v;
    }



Suppose I had different types of row layouts, I could have a ViewHolder for each type of row.  But what type would I declare &quot;holder&quot; to be at the top?  Or would I declare a holder for each type and then use the one for the type of row I&#39;m on.

Creating ViewHolders for ListViews with different item layouts

I have an Android app and it supports sending text via other apps. It therefore uses the `ACTION_SEND` intent and the `EXTRA_TEXT` field. The chooser presents me with all apps that can handle such an intent. Those are Twitter, Email, ... and Facebook. But when I select Facebook it opens the browser and goes to the following page:

http://m.facebook.com/sharer.php?u=mytext

It shows my text and the submit button. But when I press the submit button nothing happens. The page just loads again.
I think maybe it is only possible to send URLs via the Facebook App. Could that be?

Did anyone manage to send text via `ACTION_SEND` through the Facebook Android app?


Share Text on Facebook from Android App via ACTION_SEND

I am starting an activity and would rather have a alpha fade-in for `startActivity()`, and a fade-out for the `finish()`. How can I go about this in the Android SDK?

Can I change the Android startActivity() transition animation?

I can run and debug my Android app on my phone just fine, most of the time. Then, seemingly randomly, when I try to run or debug my app from Eclipse, the Console in Eclipse says:

    [2010-10-12 09:36:48 - myapp] Android Launch!
    [2010-10-12 09:36:48 - myapp] adb is running normally.
    [2010-10-12 09:36:48 - myapp] Performing com.mycompany.myapp.MyActivity activity launch
    [2010-10-12 09:36:48 - myapp] Automatic Target Mode: using device &#39;HT01TP800561&#39;
    [2010-10-12 09:36:48 - myapp] Uploading myapp.apk onto device &#39;HT01TP800561&#39;
    [2010-10-12 09:36:48 - myapp] Failed to upload myapp.apk on device &#39;HT01TP800561&#39;
    [2010-10-12 09:36:48 - myapp] java.io.IOException: Unable to open sync connection!
    [2010-10-12 09:36:48 - myapp] Launch canceled!

* Retry: doesn&#39;t help, same messages.
* Restart Eclipse: doesn&#39;t help.
* Restart adb (`adb kill-server &amp;&amp; adb start-server`): no errors, doesn&#39;t help.
* Reconnect the phone: *sometimes* helps.
* Reboot the computer: kind of drastic, haven&#39;t tried this yet.

Using Ubuntu 10.4, Eclipse Galileo 3.5.2, Android SDK 7, ADT plugin 0.9.6, Nexus One, Android 2.2.1.

Any bright ideas?

Android adb &quot;Unable to open sync connection!&quot;

How do I get the apk file from an android device? Or how do I transfer the apk file from device to system?

How do I get an apk file from an Android device?

I&#39;ve spent days trying to launch any Android program. Even &quot;Hello World&quot; gives me the same error:

&gt; &quot;The connection to adb is down, and a severe error has occurred&quot;.

I&#39;m running Eclipse&amp;nbsp;v3.5 (Galileo), Google APIs 2.2.8, on a Windows XP machine.

I&#39;ve used all the tricks I can find on the web: the command line &quot;adb kill-server&quot;, the DDMS &quot;reset ADB&quot;, I started the emulator both before and after Eclipse, and searched for ports being used by other programs.

What is going on here? Is there a magic combination of versions of Eclipse, Java, ADB, emulator, and whatever else that works?


Error &quot;The connection to adb is down, and a severe error has occurred.&quot;

I have HTC Comet connected to Eclipse with SDK 2.2. I do a debug build - the application does not run; though it does get installed on the device. On the device I get this message box on the Comet screen

**Waiting for Debugger  
Application HunyDew (process com.airvine.hunydew) is waiting for the debugger to attach.   
[Force Close]**

Whereas in the Eclipse console I get these set of messages  

    [2010-12-07 01:42:29 - hunydewprj] Android Launch!  
    [2010-12-07 01:42:29 - hunydewprj] adb is running normally.  
    [2010-12-07 01:42:29 - hunydewprj] Performing com.airvine.hunydew.HunyDewAAStartsHere activity launch  
    [2010-12-07 01:42:47 - hunydewprj] Application already deployed. No need to reinstall.  
    [2010-12-07 01:42:47 - hunydewprj] Starting activity com.airvine.hunydew.HunyDewAAStartsHere on device 308730C861BC  
    [2010-12-07 01:42:49 - hunydewprj] ActivityManager: Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=com.airvine.hunydew/.HunyDewAAStartsHere }  
    [2010-12-07 01:42:49 - hunydewprj] Attempting to connect debugger to &#39;com.airvine.hunydew&#39; on port 8601  
    [2010-12-07 01:43:09 - hunydewprj] Launch error: Failed to connect to remote VM. Connection timed out.  

The application runs fine in the Emulator - please help - what is it that I am missing here? Any hints/suggestions? Thanks

How to resolve &quot;Waiting for Debugger&quot; message?

How to simulate a touch event with Android while giving the X and Y coordinates manually?

Content Type	Original Author	Original Content on Stackoverflow
Question	Shrikant Tudavekar	View Question on Stackoverflow
Solution 1 - Android	Joakim Lundborg	View Answer on Stackoverflow
Solution 2 - Android	ash_jungroup	View Answer on Stackoverflow
Solution 3 - Android	auselen	View Answer on Stackoverflow
Solution 4 - Android	Bobbi Bennett	View Answer on Stackoverflow
Solution 5 - Android	kubano	View Answer on Stackoverflow
Solution 6 - Android	fabiano barros de souza	View Answer on Stackoverflow

Need command line to start web browser using adb

Android Problem Overview

Android Solutions

Solution 1 - Android

Solution 2 - Android

Solution 3 - Android

Solution 4 - Android

Solution 5 - Android

Solution 6 - Android

ruby convert class name in string to actual class

Is there any Rails function to check if a partial exists?

Attributions