Please check the below link for the details of the same:

http://developer.android.com/reference/android/content/Intent.html


What it means is: let&#39;s say you have 4 activities, A, B, C, and D, and the flow is

A -&gt; B -&gt; C -&gt; D

and now when you are on D you want to start activity B (from the stack and not a new instance) then you can use this intent flag. Also what it does is remove all the other activities on top of B (here C and D).

A realtime example would be an email app with activities 
ReadMailInInbox -&gt; OpenMailFullScreen -&gt; ReplyMail once you reply to your mail you wont want to go back to OpenMailFullScreen rather you would want your ReadMailInInbox activity to come on top so you can start this activity by passing an intent with the flag set as `FLAG_ACTIVITY_CLEAR_TOP`.

Hope this helps.

I want to put all my config files in a `/config` subfolder of my application directory. Log4j is expecting the log4j.properties file in the root folder of my application. Is there a way to tell log4j where to look for the properties file? 

Change location of log4j.properties

I&#39;ve seen some discussions in SO and other places regarding how this should be or will be done in future versions of Roxygen2. However, I am stuck. How should I go about documenting a S4 generic, as well as its methods, using Roxygen2? A working example for a brand new generic/methods, as well as an example for extending base S4 generic would be incredibly useful. I do not want to have to make separate (mostly) redundant documentation for each S4 method of the same generic. 

Due dilligence:
I have tracked down a useful example for the &quot;extract&quot; method. However, it appears to be outdated and incomplete for my question. It uses @slot tag in the class documentation, which is not (no longer?) supported. It only shows an extension of a core S4 method &quot;[&quot;, rather than a complete Roxygen example including the documentation of the S4 generic. 

https://stackoverflow.com/questions/4396768/how-to-properly-document-s4-and-methods-using-roxygen

If I fully document a new S4 generic with title, description `@param @return @name @aliases 
@docType @rdname`, and then document the S4 method with just the corresponding `@name @aliases 
@docType @rdname`, I get the following `R CMD check` warning:

    * checking for missing documentation entries ... WARNING
    Undocumented S4 methods:
    &lt;&lt; long list of apparently undocumented methods. E.g. generic &#39;plot&#39; and siglist &#39;myClass1,ANY&#39; &gt;&gt;
    All user-level objects in a package (including S4 classes and methods)
    should have documentation entries.

It looked at first as though none of my S4 methods documented in this fashion with roxygen2 had actually worked. However, so far, I&#39;ve noticed that my extensions of the core method &quot;show&quot; do not have an associated error, even though they were documented in exactly the same way as the rest. Here is an example of the complete roxygen documentation I included above one of the show methods, that did NOT generate the missing-documentation error:

    #&#39; @name show
    #&#39; @aliases show,myClass2-method
    #&#39; @docType methods
    #&#39; @rdname show-methods

Thus, I&#39;m at a loss. As you can see, I&#39;ve included the convention for aliases for S4 methods described in [the S4 documentation section of the R package manual](http://cran.r-project.org/doc/manuals/R-exts.html#Documenting-S4-classes-and-methods), namely that methods should have an alias with the following name (without space):

    generic,signature_list-method.

Somehow, this is not completely being understood by `R CMD check`.

Finally, after building the documentation using: 

    library(&quot;devtools&quot;)
    library(&quot;roxygen2&quot;)
    document(&quot;mypkgname&quot;)
    check_doc(&quot;mypkgname&quot;)

and building the package, I get functioning documentation. Any titles from a specific method&#39;s documentation winds up in the &#39;Description&#39; field, rather awkwardly. So roxygen2 obviously did something with each method&#39;s documentation and is on the right track. However, it is not enough to avoid a large and troubling warning from 
    
    &gt; R CMD check mypkgname

I&#39;ve looked at the Rd files, but I know even less about them to quickly see what&#39;s the problem is, and I anyway want to know the roxygen2 solution so that I will not have to manipulate the Rd files directly after each documentation revision.

So this is a multipart question:

1. What is the current recommended approach for both S4 generic and S4 method documentation with roxygen2?

2. Is there a good example available somewhere that shows the complete details?

3. What might be the cause, and solution, to the &lt;R CMD check mypkgname&gt; warning that documentation for most S4 methods is missing (even though the methods with &quot;missing&quot; documentation actually have had their doc parsed by roxygen2 and the resulting Rd files are at least good enough to work in the package after `R CMD build mypkgname`) ?







How to properly document S4 methods using roxygen2

Can somebody explain me in a really simple way what does `FLAG_ACTIVITY_CLEAR_TOP` mean? I know there were a lot of questions about it, but none of the answers satisfied me. Can somebody also give an example where this flag is useful? Thanks.

FLAG_ACTIVITY_CLEAR_TOP in Android

<p>Can somebody explain me in a really simple way what does <code>FLAG_ACTIVITY_CLEAR_TOP</code> mean? I know there were a lot of questions about it, but none of the answers satisfied me. Can somebody also give an example where this flag is useful? Thanks.</p>


I have an `EditText` and I need the text in it (when user types in) to be started with capital letter.

How to force EditText to start text with capital letter?

Is this possible to set different textSize in one TextView?  I know that I can change text style using:

    TextView textView = (TextView) findViewById(R.id.textView);
    Spannable span = new SpannableString(textView.getText());
    span.setSpan(arg0, 1, 10, arg3);
    textView.setText(span)

I know the range start...end of text I want to change size. But what can I use as `arg0` and `arg3`?

TextView with different textSize

When I switch to landscape mode (&lt;kbd&gt;NUMPAD 7&lt;/kbd&gt; or &lt;kbd&gt;CTRL&lt;/kbd&gt;+&lt;kbd&gt;F11&lt;/kbd&gt;) the emulator rotates the screen to landscape orientation but the Android OS and none of the apps rotate. So everything is sitting sideways. Is there something in the AVD configuration that needs to be set in order for the device to rotate properly?

![enter image description here][1]


  [1]: http://i.stack.imgur.com/owgJF.jpg

Android - Emulator in landscape mode, screen does not rotate

I am using the following code, MAX is 2 pages. By default the position is 0 and adds a new page to the right. I inflate two layout files.

How can I show the page1 when the app starts and add a new page to the left ?
Thanks.


**main.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:orientation=&quot;vertical&quot; android:layout_width=&quot;fill_parent&quot;
    	android:layout_height=&quot;fill_parent&quot;&gt;
    
    	
    	&lt;android.support.v4.view.ViewPager
    		android:layout_width=&quot;wrap_content&quot; android:layout_height=&quot;wrap_content&quot;
    		android:id=&quot;@+id/pagerView&quot; /&gt;
    
    
    &lt;/LinearLayout&gt;


**Java code**

    public class MyPagerActivity extends Activity {
    	private Context context;	
    	private int pageNumber;
    
    	@Override
    	public void onCreate(Bundle savedInstanceState) {
    		super.onCreate(savedInstanceState);
    		setContentView(R.layout.main);
    		context = this;
    
    		ViewPager pagerView = (ViewPager)findViewById(R.id.pagerView);
	        pagerView.setAdapter(new AwesomePagerAdapter());	
    		
    	}
    
    
    	private class AwesomePagerAdapter extends PagerAdapter{
    
    		@Override
    		public void destroyItem(View collection, int position, Object view) {
    			((ViewPager) collection).removeView((View)view);			
    		}
    
    		@Override
    		public void finishUpdate(View arg0) {
    			//setPageTitles(getPageNumber());
    		}
    
    		@Override
    		public int getCount() {
    			return 2;
    		}
    
    		@Override
    		public Object instantiateItem(View collection, int position) {
    			/*	TextView tv = new TextView(MyPagerActivity.this);
    		tv.setText(&quot;Bonjour PAUG &quot; + position);
    		tv.setTextColor(Color.WHITE);
    		tv.setTextSize(30);
    
    		((ViewPager) collection).addView(tv,0);
    
    		return tv;*/
    
    			View view = getViewToShow(position);
    			((ViewPager) collection).addView(view,0);
    			return view;
    		}
    
    		@Override
    		public boolean isViewFromObject(View view, Object object) {
    			return view==((View)object);
    		}
    
    		@Override
    		public void restoreState(Parcelable arg0, ClassLoader arg1) {
    			// TODO Auto-generated method stub
    
    		}
    
    		@Override
    		public Parcelable saveState() {
    			// TODO Auto-generated method stub
    			return null;
    		}
    
    		@Override
    		public void startUpdate(View arg0) {
    			// TODO Auto-generated method stub
    
    		}
    
    	}
    
    
    	private View getViewToShow(int position){
    		View view = null;
    		View layout; 
    		LayoutInflater mInflater =  (LayoutInflater)
    		context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    
    		switch(position){
    
    		case 0: 
    			layout  = mInflater.inflate(R.layout.elements, null);
    			view = layout;
    			break;
    		case 1: view = 
    			layout  = mInflater.inflate(R.layout.elements2, null);
    		view = layout;
    
    		break;
    		}
    		return view;
    	}
    	
    }

Set default page for ViewPager in Android

Can anyone suggest to me any event related to the focus of the `EditText`?
My application contains an `EditText`, which accepts a URL in it. 

Now my problem is that, that after the user will enter the URL in the field and Move further, without any of the click events, i.e when the focus will move from the `EditText`, it should detect the entered Url and goes to the server.

If I get the reply using Json Parsing, then it&#39;ll be more convenient.

Content Type	Original Author	Original Content on Stackoverflow
Question	lomza	View Question on Stackoverflow
Solution 1 - Android	Deva	View Answer on Stackoverflow

FLAG_ACTIVITY_CLEAR_TOP in Android

Android Problem Overview

Android Solutions

Solution 1 - Android

How to properly document S4 methods using roxygen2

Change location of log4j.properties

Attributions