The Google API includes Google Maps and other Google-specific libraries.  The Android one only includes core Android libraries.

As for which one to choose, I would go with the Android API until you find that you need the Google API; such as when you need Google Maps functionality.

[Here][1] is a link to the Google API page.

  [1]: https://developer.android.com/google/play-services/index.html

Are there any filters or something like that in twig template engine to format money or numbers?

Formatting money in twig templates

In a project I have taken on, the original author has opted to use `objc_setAssociatedObject()` and I&#39;m not 100% clear what it does or why they decided to use it.

I decided to look it up and, unfortunately, the docs aren&#39;t very descriptive about its purpose.

**objc_setAssociatedObject**  
Sets an associated value for a given object using a given key and association policy.  
`void objc_setAssociatedObject(id object, void *key, id value, objc_AssociationPolicy policy)`  
**Parameters**  
`object`  
The source object for the association.  
`key`  
The key for the association.  
`value`  
The value to associate with the key key for object. Pass nil to clear an existing association.  
`policy`  
The policy for the association. For possible values, see “Associative Object Behaviors.”  

So what exactly does this function do and in what cases should it be used?
_____________

*Edit after reading answers*

So what is the point in the following code?

    Device *device = [self.list objectAtIndex:[indexPath row]];
    DeviceViewController *next = [[DeviceViewController alloc] initWithController:self.controller
    																			device:device
    																			   item:self.rootVC.selectedItem];	
    	objc_setAssociatedObject(device, &amp;kDeviceControllerKey, next, OBJC_ASSOCIATION_RETAIN);

What is the point in associating the device with the view controller if it&#39;s already an instance variable?

What is objc_setAssociatedObject() and in what cases should it be used?

I&#39;m developing android with SDK 2.3.3 using Eclipse IDE.
As you all know to run my app, I should generate virtual device.
From &#39;create new AVD&#39; window, I can see many targets. 
There are 2 targets for API level 10 such as &#39;android 2.3.3&#39; and Google APIs(Google Inc).
Among those targets, I&#39;m uncertain which one I should choose.

My question is what&#39;s the difference between them.

Thanks in advance
Dan

Difference between target google APIs and target android

I'm developing android with SDK 2.3.3 using Eclipse IDE.
As you all know to run my app, I should generate virtual device.
From 'create new AVD' window, I can see many targets.
There are 2 targets for API level 10 such as 'android 2.3.3' and Google APIs(Google Inc).
Among those targets, I'm uncertain which one I should choose.
My question is what's the difference between them.
Thanks in advance
Dan

For some reason auto complete no longer works. for example when writing code using the android bitmap class, when i use the dot operator eclipse would suggest methods for that object instance. how do you turn this feature back on?

thanks mat.

autocomplete has stopped working with android sdk

Is there any established noSQL database solution to be used for developing native mobile applications (Android and/or iOs)?

NoSQL for mobile apps?

Can someone explain to me the difference between `AlarmManager.RTC_WAKEUP` and `AlarmManager.ELAPSED_REALTIME_WAKEUP`? I have read the documentation but still don&#39;t really understand the implication of using one over the other.

Example code:

        alarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, 
                         scheduledAlarmTime, 
                         pendingIntent);

        alarmManager.set(AlarmManager.RTC_WAKEUP, 
                         scheduledAlarmTime, 
                         pendingIntent);
    

How different will the two lines of code execute? When will those two lines of code execute relative to each other?

I appreciate your help.

Android AlarmManager - RTC_WAKEUP vs ELAPSED_REALTIME_WAKEUP

I have a drawable that i use as a Background for a LinearLayout. I would like to change the color of this Shape in runtime. I have tried using several methods.. but none work.

I&#39;ve followed the approach described here: http://www.anddev.org/android-2d-3d-graphics-opengl-problems-f55/change-shape-drawable-solid-color-t16798.html

But have the same problem... it doesnt crashes.. but the color doesnt change!

    &lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;
    &lt;shape xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;&gt;
    	&lt;solid android:color=&quot;#00A6C1&quot; /&gt;
    	&lt;corners android:radius=&quot;@dimen/square_corners&quot; /&gt;
    &lt;/shape&gt;



Snippet of code:

    GradientDrawable drawable = (GradientDrawable) activity.getResources().getDrawable(R.drawable.blue_square_shape);
        
    
    int color = ((Application) getApplication()).getColor();
    drawable.setColor(color);
        
    block.findViewById(R.id.blockSquare).setBackgroundDrawable(drawable);
    
    findViewById(R.id.blockSquare).postInvalidate();


Any clue? I&#39;ve passed the whole day googling... and it&#39;s getting pretty annoying...



**UPDATE:**

When i try to do the same to this Shape:

    &lt;shape xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
    	android:id=&quot;@+id/shape&quot; android:shape=&quot;rectangle&quot;&gt;
    	&lt;gradient android:startColor=&quot;#1FBCCF&quot; android:endColor=&quot;#06A4C1&quot;
    		android:angle=&quot;270&quot; /&gt;
    	&lt;corners android:topLeftRadius=&quot;@dimen/footer_corners&quot;
    		android:topRightRadius=&quot;@dimen/footer_corners&quot; /&gt;
    &lt;/shape&gt;

The color turns to black... what i guess tells it can be changed...

Android: Change Shape Color in runtime

I have added a **2.45mb** jar file to my Android eclipse project and now I continue to get &quot;Conversion to Dalvik format failed: Unable to execute dex: Java heap space&quot; no matter what I do. 

I have researched online, and was informed to update my eclipse.ini to increase my Java VM heapsizes. I have done this for all the values in eclipse.ini and I continue to get the build error.

Any ideas?

Conversion to Dalvik format failed: Unable to execute dex: Java heap space

I&#39;m pretty confused between some concepts of OOP: `virtual`, `override`, `new` and `sealed override`. Can anyone explain the differences?

I am pretty clear that if the derived class method is to be used, one can use the `override` keyword so that the base class method will be overriden by derived class. But I&#39;m not sure about `new`, and `sealed override`.

The difference between virtual, override, new and sealed override

As far as I know, both abstract methods and pure virtual functions do NOT provide any functionality ... So can we say they&#39;re both the same thing ?

Also, suppose a class (not necessarily declared as abstract) contains a number of implemented methods (not abstract or virtual), but contains a pure virtual function. Is this class then abstract ?

Are abstract methods and pure virtual functions the same thing?

I have an abstract class (I know that it will not compile this way, but it&#39;s for comprehension of what I want to do) :

    class AbstractComputation {
        public:
            template &lt;class T&gt; virtual void setData(std::string id, T data);
            template &lt;class T&gt; virtual T getData(std::string id);
    };
    
    class Computation : public AbstractComputation {
        public:
            template &lt;class T&gt; void setData(std::string id, T data);
            template &lt;class T&gt; T getData(std::string id, T data);
    };

So when I call `setData&lt;double&gt;(&quot;foodouble&quot;, data)` I want the double identified by `foodouble` (internal mechanism which is not the main concern here) to be set to the double data.

So how to do that? 

I think that there may be a mean by typing something like `virtual void setData&lt;double&gt;(std::string id, double data)` but I don&#39;t know how to do it.


C++ Virtual template method

In the following blog: http://weblogs.asp.net/scottgu/archive/2010/07/16/code-first-development-with-entity-framework-4.aspx

The blog contains the following code sample:

    public class Dinner
    {
       public int DinnerID { get; set; }
       public string Title { get; set; }
       public DateTime EventDate { get; set; }
       public string Address { get; set; }
       public string HostedBy { get; set; }
       public virtual ICollection&lt;RSVP&gt; RSVPs { get; set; }
    }
    
    public class RSVP
    {
       public int RsvpID { get; set; }
       public int DinnerID { get; set; }
       public string AttendeeEmail { get; set; }
       public virtual Dinner Dinner { get; set; }
    }

What is the purpose of using `virtual` when defining a property in a class?  What effect does it have?



Why use &#39;virtual&#39; for class properties in Entity Framework model definitions?

Once before, I was certain that you couldn&#39;t do this, but the other day I was playing around with some code and it seemed to compile and work. I just want to verify that I am not just getting lucky. Can a template class have a pure virtual function - which I guess would also mean just plain virtual methods would be valid as well for the destructor?

    template &lt;typename WordType&gt; class DataSource
    {
    public:
        DataSource();
        DataSource(DataSource const&amp; other);
        virtual ~DataSource();

        virtual void Put(
            WordType const* const data,
            unsigned int const wordCount) = 0;
    }

I&#39;ve tried looking it up online and all that I&#39;ve been able to find is that you cannot have a virtual method (pure or otherwise) in a normal class such as this:

    class DataSource
    {
    public:
        DataSource();
        DataSource(DataSource const&amp; other);
        virtual ~DataSource();

        template &lt;typename WordType&gt;
        virtual void Put(
            WordType const* const data,
            unsigned int const wordCount) = 0;
    }

And that this is due to the imposibility of managing a virtual table to reference all the different types of possible types this method would be instanciated with.

However, when it came to a virtual member function of a template class, it seems to be different because the whole class itself is &quot;created&quot; via the template parameter when the template class variable is instanciated. At this point, the virtual method is just like any other virual method of a class due to the &quot;find-and-replace&quot; nature of templates.

Anyway, stating the question again in case it got lost in there:
Are virtual (pure and/or normal) virtual functions allowed within a tempate class?

Are pure virtual methods allowed within a template class?

I am developing `Android` application on `macOS` and my application runs well on the emulator. I want to run it on the device, but when I run `adb devices` I get nothing.

    localhost:platform-tools BF$ adb devices 
    List of devices attached 

    localhost:platform-tools BF$

I have checked the documentation in the reference about &quot;Setting up a Device for Development&quot;. I have done everything step by step.

In the documentation, there are some words: **Setup your system to detect your device. If you&#39;re developing on Mac OS X, it just works. Skip this step.**

Now, I can&#39;t find any solution. Does it need special drivers for Android Devices?






Can&#39;t find android device using &quot;adb devices&quot; command

I have been asked to create an actual HTML page / JavaScript to simulate detection of the mobile devices (iPhone / iPad / Android) using JavaScript code. This will then take the user to a different screen which asks them for their email address.

How to detect a mobile device with JavaScript?

I use &quot;adb devices&quot; to get following result. Only one device is connected to PC by USB, but we get 8 lines of result. 

Could anyone suggest the reason?


    WH96TNE00361    offline
    WH96TNE00361    offline
    WH96TNE00361    offline
    WH96TNE00361    offline
    WH96TNE00361    offline
    WH96TNE00361    offline
    WH96TNE00361    offline
    WH96TNE00361    offline

Why does adb return offline after the device string?

On a debug build in Xcode, regardless of whether I am using the simulator or an actual device, NSLog, printf, fprintf assert and NSAssert statements come out on the console

If I now run a release build on the device (say I send a test flight build and big it up on my iPhone; this will be a release build), which of these (if any) are getting recorded?

And how do I retrieve the log?

Does NSLog actually output something on release build?   What is the determining factor? Whether it is writing to stdout or stderr?   is only stderr written to device log?   Does this mean I have to use fprintf?   Is ANYTHING written to device log?  is there even such a thing?  If so, how to pick it up?

Could someone clarify the situation? 

Logging data on device and retrieving the log

I have an app that runs on the iPhone and iPod Touch, it can run on the Retina iPad and everything but there needs to be one adjustment. I need to detect if the current device is an iPad. What code can I use to detect if the user is using an iPad in my `UIViewController` and then change something accordingly?

iOS detect if user is on an iPad

I am using this bit of jQuery code to get href of the link:

    var url = $(this).attr(&#39;href&#39;);

-- and this bit of code to go to that href:

    window.location = url;

Everything is just the way I want it, except the new page opens in the same window as the previous one, and I want it to open in a new window or tab (something that in plain html would have been achieved by using target=&quot;_blank&quot; formula). 

**Question: How can I open the href in the new window or tab with jQuery?**

Thank you for your help!

jQuery: go to URL with target=&quot;_blank&quot;

Every time I try to import a project downloaded from *googlecode* into Eclipse but I get some errors:

&gt; The project was not built since its build path is incomplete. Cannot
&gt; find the class file for java.lang.Object. Fix the build path then try
&gt; building this project	
&gt; 
&gt; Unable to resolve target &#39;android-10&#39; (this changes from 1 to 15)

I&#39;ve already checked the other answers on the site but no solution worked. 

In 

&gt; Properties -&gt; Java Build Path -&gt; Libraries

 there&#39;s 1 item:

&gt; Unable to get system libraries for the project

The project was not built since its build path is incomplete

I&#39;m using CocoaPods with my Xcode 4 project and I have three targets for my project (the default, one for building a lite version and one for building a demo version). All the targets use the same libraries, but CocoaPods is only adding the static library and search paths to the primary target. My podfile looks like this:

    platform :ios, &#39;5.0&#39;
    
    pod &#39;TestFlightSDK&#39;, &#39;&gt;= 1.1&#39;
    pod &#39;MBProgressHUD&#39;, &#39;0.5&#39;
    pod &#39;iRate&#39;, &#39;&gt;= 1.6.2&#39;
    pod &#39;TimesSquare&#39;, &#39;1.0.1&#39;
    pod &#39;AFNetworking&#39;, &#39;1.1.0&#39;
    pod &#39;KKPasscodeLock&#39;, &#39;0.1.5&#39;
    pod &#39;iCarousel&#39;, &#39;1.7.4&#39;


The only way I was get this to work was to specify each target individually with all the the pods listed again.

    platform :ios, &#39;5.0&#39;
    
    target :default do	
    	pod &#39;TestFlightSDK&#39;, &#39;&gt;= 1.1&#39;
    	pod &#39;MBProgressHUD&#39;, &#39;0.5&#39;
    	pod &#39;iRate&#39;, &#39;&gt;= 1.6.2&#39;
    	pod &#39;TimesSquare&#39;, &#39;1.0.1&#39;
    	pod &#39;AFNetworking&#39;, &#39;1.1.0&#39;
    	pod &#39;KKPasscodeLock&#39;, &#39;0.1.5&#39;
    	pod &#39;iCarousel&#39;, &#39;1.7.4&#39;
    end
    
    target :lite do	
    	link_with &#39;app-lite&#39;
    	
    	pod &#39;TestFlightSDK&#39;, &#39;&gt;= 1.1&#39;
    	pod &#39;MBProgressHUD&#39;, &#39;0.5&#39;
    	pod &#39;iRate&#39;, &#39;&gt;= 1.6.2&#39;
    	pod &#39;TimesSquare&#39;, &#39;1.0.1&#39;
    	pod &#39;AFNetworking&#39;, &#39;1.1.0&#39;
    	pod &#39;KKPasscodeLock&#39;, &#39;0.1.5&#39;
    	pod &#39;iCarousel&#39;, &#39;1.7.4&#39;
    end
    
    target :demo do	
    	link_with &#39;app-demo&#39;
    	
    	pod &#39;TestFlightSDK&#39;, &#39;&gt;= 1.1&#39;
    	pod &#39;MBProgressHUD&#39;, &#39;0.5&#39;
    	pod &#39;iRate&#39;, &#39;&gt;= 1.6.2&#39;
    	pod &#39;TimesSquare&#39;, &#39;1.0.1&#39;
    	pod &#39;AFNetworking&#39;, &#39;1.1.0&#39;
    	pod &#39;KKPasscodeLock&#39;, &#39;0.1.5&#39;
    	pod &#39;iCarousel&#39;, &#39;1.7.4&#39;
    end

Is there a better way to do this?

How do I specify multiple targets in my podfile for my Xcode project?

I&#39;m trying to setup a Makefile that will search and copy some files (if-else condition) and I can&#39;t figure out what exactly is wrong with it? (thou I&#39;m pretty sure it&#39;s because a combination of spaces/tabs written in the wrong place).
Can I get some help with it, please?

Here&#39;s what I have currently:


    obj-m = linuxmon.o

	KDIR = /lib/modules/$(shell uname -r)/build
	UNAME := $(shell uname -m)

	all:

		$(info Checking if custom header is needed)
		ifeq ($(UNAME), x86_64)
			$(info Yes)
			F1_EXISTS=$(shell [ -e /usr/include/asm/unistd_32.h ] &amp;&amp; echo 1 || echo 0 )
			ifeq ($(F1_EXISTS), 1)
				$(info Copying custom header)
				$(shell sed -e &#39;s/__NR_/__NR32_/g&#39; /usr/include/asm/unistd_32.h &gt; unistd_32.h)
			else	
				F2_EXISTS=$(shell [[ -e /usr/include/asm-i386/unistd.h ]] &amp;&amp; echo 1 || echo 0 )
				ifeq ($(F2_EXISTS), 1)
					$(info Copying custom header)
					$(shell sed -e &#39;s/__NR_/__NR32_/g&#39; /usr/include/asm-i386/unistd.h &gt; unistd_32.h)
				else
					$(error asm/unistd_32.h and asm-386/unistd.h does not exist)
				endif
			endif
			$(info No)
		endif

		@make -C $(KDIR) M=$(PWD) modules

	clean:
		make -C $(KDIR) M=$(PWD) clean
		rm unistd_32.h


Anyways, that&#39;ll print &quot;Yes&quot;, &quot;Copying header&quot; twice and then it will quit saying that sed can&#39;t read ```/usr/include/asm-i386/unistd.h``` (which of course it can&#39;t read as I&#39;m on a x64 system).
I could say that ```make``` just isn&#39;t understanding the if/else and instead is running everything line by line.

If conditions in a Makefile, inside a target

A project has moved to a different location, so Eclipse won&#39;t open the project. You&#39;ll immediately think about simply changing the pointer to the location, but in Eclipse they try to make this impossible for some reason.

You cannot change the project location in the `Project Explorer` properties.

You can go to `[workspace]/eclipse/.metadata/.plugins/org.eclipse.core.resources/.projects/ProjectName` and try to edit `.location` which is the pointer to the project, but this file is purposely stored in binary.

How do I change this `.location`, is there a tool for that? Any other way to **simply** point my old project entry to it&#39;s new location?

How can I change a project&#39;s location pointer in Eclipse?

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

Android 4.0 is now released. I have just updated my [ADT][1] plugin and downloaded the 4.0 SDK. But when I try to create an [AVD][2] for Android 4.0, Eclipse tells me &#39;Unable to find a &#39;userdata.img&#39; file for ABI armeabi to copy into the AVD folder&#39;.

I found `d:\android-sdk-windows\platforms\android-14` missing the &#39;images&#39; folder which other versions have. This folder may have &#39;userdata.img&#39; that create an AVD should have.

Where should I to get &#39;userdata.img&#39;, and how do I create an AVD for Android 4.0?

  [1]: http://developer.android.com/guide/developing/tools/adt.html
  [2]: http://developer.android.com/guide/developing/devices/index.html


How to create an AVD for Android 4.0

I know I can start the emulator avd by typing

    emulator.exe @avdname

But is there a command to list the available avdnames?
Where are this avd configuration stored?

What is the command to list the available avdnames

This problem was discovered when I tried to run the Android emulator in Eclipse. Can&#39;t figure out what happened. I searched online for the solution, but it seemed to be vague and I don&#39;t understand clearly.
 I was following the steps to install the AVD according to the sites and I can&#39;t figure out what I missed. Please explain it to me in steps to follow. 


Emulator error: This AVD&#39;s configuration is missing a kernel file

I have created an Android emulator (Android Virtual Device), but I am unable to find out the SD card I have built during creation of this.

How can I find the SD card and its content and also how to install APK files to the AVD?

Content Type	Original Author	Original Content on Stackoverflow
Question	allbory	View Question on Stackoverflow
Solution 1 - Android	Zack Marrapese	View Answer on Stackoverflow

Difference between target google APIs and target android

Android Problem Overview

Android Solutions

Solution 1 - Android

What is objc_setAssociatedObject() and in what cases should it be used?

Formatting money in twig templates

Attributions