The difference is that `android:lineSpacingExtra` add extra spacing between lines of text of TextView and `android:lineSpacingMultiplier` work as scale factor for height of line space. in other words, each line height will be `height*multiplier + extra`

It&#39;s rather simple: one is additive and one is multiplicative.

If you have a default line spacing of `LINE_SPACING` and use:

    float x = 2;
    float y = 1.5;
    setLineSpacing(x, y);

The resulting line spacing will be `1.5*LINE_SPACING + 2`

It is important to note that _the multiplication happens first!_ This follows the conventional order of operations (multiplication before addition). 

See the docs here: http://developer.android.com/reference/android/widget/TextView.html#setLineSpacing(float, float)

In the future, it might be wise to look up such documentation first. ;)

I am using bootstrap 3 and I have the following html:

    &lt;div class=&quot;col-sm-2&quot; &gt;
    	&lt;a id=&quot;new-board-btn&quot; class=&quot;btn btn-success&quot; &gt;Create New Board&lt;/a&gt;
    &lt;/div&gt;

On a small screen, the text &quot;Create New Board&quot; is too long to fit on the button.  I would like the text to wrap on to another line and the height of the button to increase to fit the text.  Any tips on how to do this?

How to get a responsive button in bootstrap 3

## Background
Several SQL languages (I mostly use postgreSQL) have a function called coalesce which returns the first non null column element for each row. This can be very efficient to use when tables have a lot of `NULL` elements in them. 

I encounter this in a lot of scenarios in R as well when dealing with not so structured data which has a lot of NA&#39;s in them. 

I have made a naive implementation myself but it is ridiculously slow. 

    coalesce &lt;- function(...) {
      apply(cbind(...), 1, function(x) {
              x[which(!is.na(x))[1]]
            })
    }



## Example
    a &lt;- c(1,  2,  NA, 4, NA)
    b &lt;- c(NA, NA, NA, 5, 6)
    c &lt;- c(7,  8,  NA, 9, 10)
    coalesce(a,b,c)
    # [1]  1  2 NA  4  6

## Question
Is there any efficient way to implement `coalesce` in R?


How to implement coalesce efficiently in R

I&#39;m adding line spacing in my textview which spans multiple lines.
What&#39;s the difference between `android:lineSpacingExtra` and `android:lineSpacingMultiplier`?

lineSpacingExtra with 2dp worked fine for me but I was wondering what the Multiplier does instead?

What&#39;s the difference between lineSpacingExtra and lineSpacingMultiplier?

<p>I'm adding line spacing in my textview which spans multiple lines.
What's the difference between <code>android:lineSpacingExtra</code> and <code>android:lineSpacingMultiplier</code>?</p>
<p>lineSpacingExtra with 2dp worked fine for me but I was wondering what the Multiplier does instead?</p>


I&#39;m developing an Android app, which I therefore endlessly build and install on my test device. Since a couple days I get with every build/install a question asking 

&gt; Google may regularly check installed apps for potentially harmfull
&gt; behaviour. Learn more in Google Settings &gt; Verify apps.

I get the option to Accept or Decline. I&#39;ve declined about a hundred times now, but it seems to be Googles policy to keep on asking until I get sick of the message and finally click Accept. But I don&#39;t want that!

So my question: how do I let Google know once and for all that I do not want them regularly checking installed apps on my phone?

How to disable Google asking permission to regularly check installed apps on my phone?

Anybody have idea how can we remove notification from application programmatically which is called using Pending intent.

I have used to cancel notification using following method.

    AlarmManager am=(AlarmManager)getSystemService(Context.ALARM_SERVICE);
	Intent intent = new Intent(Display.this, TwoAlarmService.class);
	PendingIntent pi = PendingIntent.getBroadcast(Display.this, AlarmNumber, intent, PendingIntent.FLAG_CANCEL_CURRENT);
	am.cancel(pi);

But problem is notification which fired already that are not removed from notification bar.

Thanks in advance...

![enter image description here][1]


  [1]: http://i.stack.imgur.com/yhcx6.png

How to remove notification from notification bar programmatically in android?

I always use `LayoutInflater` and `findViewById` for creating new item in the`getView` method of an `Adapter`.

But in many articles people write that `findViewById` is very very slow and strongly recommend to use the View Holder Pattern.

Can anyone explain why `findViewById` is so slow? And why the View Holder Pattern is faster? 


And what should I do if needed to add different items to a `ListView`? Should I create classes for each type?

    static class ViewHolderItem1 {
        TextView textViewItem;
    }
    
    static class ViewHolderItem2 {
        Button btnViewItem;
    }
    static class ViewHolderItem3 {
        Button btnViewItem;
        ImageView imgViewItem;
    }

findViewById vs View Holder Pattern in ListView adapter

How do I have to modify my XML resources, or what XML file do I have to create, to access integer values in the same way you access string values with `R.string.some_string_resource` ?

For example, in the code I want to say:

    ProgressDialog progressBar = new ProgressDialog(getContext());
    progressBar.setMax(getInteger(R.integer.maximum));

Is it possible?

Android: integer from xml resource

I have a directory/project setup like this:

	C:\
		_dev\
			Projects\
				Logger
				MyProject

_Logger_ is an Android library project using Gradle. _MyProject_ is a standard Android project project that needs to make use of the _Logger_ library.

I am using Android Studio and have tried adding _Logger_ to the external libraries. Whilst this works during development, I get messages about the class not being found when building.

I&#39;m completely new to Gradle, but have tried the following in my build.gradle within _MyProject_:

	buildscript {
	    repositories {
	        mavenCentral()
	    }
	    dependencies {
	        classpath &#39;com.android.tools.build:gradle:0.5.+&#39;
	    }
	}
	apply plugin: &#39;android&#39;

	repositories {
	    mavenCentral()
	}

	android {
	    compileSdkVersion 18
	    buildToolsVersion &quot;18.1.0&quot;

	    defaultConfig {
	        minSdkVersion 16
	        targetSdkVersion 18
	    }

	    dependencies {
	        compile files(&quot;../Logger&quot;)
	    }
	}

	dependencies {
		compile &#39;com.android.support:gridlayout-v7:18.0.0&#39;
		compile &#39;com.android.support:appcompat-v7:18.0.0&#39;
	}


Require Gradle project from another directory

I am creating a `TextView` with a drawable underneath, in a `GridLayout`. 

I want to bring the drawable to the middle of the `TextView`; I tried with 
`setCompoundDrawablePadding(-75)` and it only changes the position of the text.

Current code:

        TextView secondItem = new TextView(this);
        GridLayout.LayoutParams second = new GridLayout.LayoutParams(row2, col1);
        second.width = halfOfScreenWidth;
        second.height = (int) (quarterScreenWidth * 1.5);
        secondItem.setLayoutParams(second);
        secondItem.setBackgroundResource(R.color.MenuSecond);
        secondItem.setCompoundDrawablesRelativeWithIntrinsicBounds(0, 0, 0, R.drawable.ic_action_new);
        secondItem.setText(&quot;Text&quot;);
        secondItem.setCompoundDrawablePadding(-180);
        secondItem.setGravity(Gravity.CENTER);
        secondItem.setTextAppearance(this, android.R.style.TextAppearance_Large_Inverse);
        gridLayout.addView(secondItem, second);
            

How can I set the text and drawable to the middle of the `TextView`?

Android TextView drawable, change padding between drawable and text?

I&#39;m currently learning some android for a school project and I can&#39;t figure out the way to **set text dynamically** to a `TextView`. 

Here is my code:

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_enviar_mensaje);
        err = (TextView)findViewById(R.id.texto);
        err.setText(&quot;Escriba su mensaje y luego seleccione el canal.&quot;);
    }


This is currently not working and I can&#39;t find a way to make it work...


Any help will be much appreciated...
Thank you for the time,
Jos&#233;.



EDIT: Here is the **activity_enviar_mensaje.xml**

    &lt;RelativeLayout xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
        xmlns:tools=&quot;http://schemas.android.com/tools&quot;
        android:layout_width=&quot;match_parent&quot;
        android:layout_height=&quot;wrap_content&quot;
        ...
        tools:context=&quot;.EnviarMensaje&quot; &gt;
        ...
        &lt;TextView
            android:id=&quot;@+id/texto&quot;
            android:layout_width=&quot;wrap_content&quot;
            android:layout_height=&quot;wrap_content&quot;
            android:layout_alignLeft=&quot;@+id/listaVista&quot;
            android:layout_alignParentBottom=&quot;true&quot;
            android:layout_alignRight=&quot;@+id/listaVista&quot;
            android:text=&quot;TextView&quot; /&gt;
        ...
    &lt;/RelativeLayout&gt;


By not working I mean the text shown does not change at any moment...

Android - Set text to TextView

I want to add &quot;More&quot; functionality after three lines of text. The text contains the description which is more than 10 lines. so we have decided to add &quot;More&quot; after three lines of text. Like: 

![enter image description here][1]


  [1]: http://i.stack.imgur.com/enlAB.png

when the text is showing the complete description, then it should show &quot;Less&quot; button at the end of text which again compress the `TextView`.

Add &quot;View More&quot; at the end of TextView after 3 lines

I have a situation, where there are two fields. `field1` and `field2`. All I want
to do is empty `field2` when `field1` is changed and vice versa. So at the end only
one field has content on it.

    field1 = (EditText)findViewById(R.id.field1);
    field2 = (EditText)findViewById(R.id.field2);
    
    field1.addTextChangedListener(new TextWatcher() {
      
       public void afterTextChanged(Editable s) {}
     
       public void beforeTextChanged(CharSequence s, int start,
    	 int count, int after) {
       }
     
       public void onTextChanged(CharSequence s, int start,
    	 int before, int count) {
    	  field2.setText(&quot;&quot;);
       }
      });
    
    field2.addTextChangedListener(new TextWatcher() {
      
       public void afterTextChanged(Editable s) {}
     
       public void beforeTextChanged(CharSequence s, int start,
    	 int count, int after) {
       }
     
       public void onTextChanged(CharSequence s, int start,
    	 int before, int count) {
    	 field1.setText(&quot;&quot;);
       }
      });

It works fine if I attach `addTextChangedListener` to `field1` only, but when
I do it for both fields the app crashes. Obviously because they try to change
each other indefinitely. Once `field1` changes it clears `field2` at this moment
`field2` is changed so it will clear `field1` and so on...

Can someone suggest any solution?


android on Text Change Listener

I have a TextView with multiple ClickableSpans in it. When a ClickableSpan is pressed, I want it to change the color of its text.

I have tried setting a color state list as the textColorLink attribute of the TextView. This does not yield the desired result because this causes **all** the spans to change color when the user clicks **anywhere** on the TextView.

Interestingly, using textColorHighlight to change the background color works as expected: Clicking on a span changes only the background color of that span and clicking anywhere else in the TextView does nothing.

I have also tried setting ForegroundColorSpans with the same boundaries as the ClickableSpans where I pass the same color state list as above as the color resource. This doesn&#39;t work either. The spans always keep the color of the default state in the color state list and never enter the pressed state.

Does anyone know how to do this?

This is the color state list I used:

    &lt;selector xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;&gt;
      &lt;item android:state_pressed=&quot;true&quot; android:color=&quot;@color/pressed_color&quot;/&gt;
      &lt;item android:color=&quot;@color/normal_color&quot;/&gt;
    &lt;/selector&gt;

Change the text color of a single ClickableSpan when pressed without affecting other ClickableSpans in the same TextView

I have a label which has few lines of text and I want to increase the spacing between the lines. There are similar questions asked by others but the solutions don&#39;t solve my problems. Also my label may or may not contain paragraphs. I am new to `Swift`. Is there a solution using storyboard? Or only through `NSAttributedString` its possible?

Content Type	Original Author	Original Content on Stackoverflow
Question	change	View Question on Stackoverflow
Solution 1 - Android	Jans	View Answer on Stackoverflow
Solution 2 - Android	J David Smith	View Answer on Stackoverflow

What's the difference between lineSpacingExtra and lineSpacingMultiplier?

Android Problem Overview

Android Solutions

Solution 1 - Android

Solution 2 - Android

How to implement coalesce efficiently in R

How to get a responsive button in bootstrap 3

Attributions