Develop Reference

i can't add the menu icons to the tool bar in visual studio xamarin

it seems that what ever i did i cant set the icons visible to the tool bar, i've tried to do researches on many platforms, but nothing helped.
here is the xml menu:
<?xml version="1.0" encoding="utf-8" ?>
<menu
xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="#+id/event_ic"
android:icon="#mipmap/ic_event"
android:title="profile"
android:showAsAction="always"
/>
<item
android:id="#+id/details_menu"
android:title="details"
android:showAsAction="never"/>
</menu>
you can see that even if i set the android:showAsAction to always, i still get the event item in the pop up menu without the icon.

Why is Android Studio complaining about android:layout_width and layout_height in my simple menu?

I have an app that builds just fine when I build it with ant. But when I import the app into Android Studio, it gives me this error message. Geezzz I really wish I could cut-n-paste text from Android Studio :( so please excuse my screen shot.
Here's my menu.xml file:
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<!-- Single menu item
Set id, icon and Title for each menu item
-->
<item android:id="#+id/menu_exit"
android:checkable="true"
android:title="Exit" />
</menu>

#Luksprog's comment The IDE it's complaining because you put your menu file inside the layout folder so the IDE thinks that is a layout file.
You should put menu file under res/menu/menu.xml
For more details about menu resource
https://developer.android.com/guide/topics/resources/menu-resource.html
https://developer.android.com/guide/topics/ui/menus.html

Text or Icon in action bar, stuck with the 3 dots

I'm making an android app in Eclipse. I want to place a text or icon in the action bar, but when I am writing in menu.xml, which looks like this:
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="#+id/createnew"
android:orderInCategory="1"
android:showAsAction="ifRoom"
android:title="CREATE"/>
</menu>
it puts it in the options menu. I want to separate it.
I see this in the app when I run it:
(sorry can't post pictures because I don't have enough rep)
I want to CREATE next to the option menu like this for example:

Since you are using the AppCompat Actionbar, you need to use a custom namespaced showAsAction attribute.
It should look something like this:
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:yourapp="http://schemas.android.com/apk/res-auto" >
<item
android:id="#+id/createnew"
android:orderInCategory="1"
yourapp:showAsAction="ifRoom"
android:title="CREATE"/>
</menu>
Note that this uses yourapp:showAsAction instead of android:showAsAction. This is because the showAsAction attribute is not available on pre-Honeycomb devices and is provided by the support library.
For more information, read the Action Bar developer guide.

It's caused by this line
android:showAsAction="ifRoom"
That tells Android to put it up there if it's going to fit nicely. If you want it up there no matter the fit use
android:showAsAction="always"

Items in Action Bar won't show in App

I have a problem: I want to put a search Icon on the Action Bar. In Android Studio it shows it on the Action Bar, but when I open the App it only shows it in the menu..
Here is my xml code:
<item
android:id="#+id/action_settings"
android:title="#string/action_settings"
android:orderInCategory="100"
android:showAsAction="never" />
<item
android:id="#+id/action_search"
android:icon="#drawable/ic_action_search"
android:showAsAction="ifRoom"
android:title="#string/action_search"/>
I tried many things but it wont work. I hope you can help me.
It still doesn't work I really don't have a clue why.

You're not specifying your ActionView class, which is probably part of the problem. Here is the xml for a search action view that I use in one of my applications that works fine.
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item
android:id="#+id/search_user"
android:actionViewClass="android.widget.SearchView"
android:icon="#drawable/magnifing_glass"
android:showAsAction="ifRoom|collapseActionView"
android:title="#string/action_search"/>
</menu>
EDIT:
If you're not trying to use it as an ActionView, disregard the above and use showAsAction="always".

Your problem is either that there is not enough space on the action bar to display the icon, or your device has a dedicated menu button.

Can't find the ActionBar resource icon

All, Forgive me I just began to learn development of Android, It is the first time I used the ActionBar in my Android application. Firstly.
I was following the tutorial to add the resource of ActionBar to project. But the IDE alert me the resource can't be found. please help to review my current setup. thanks.
I had downloaded and upziped all the Icons. and copy all the icons under the res/drawable folder.
and I add a xml file named main_activity_actions.xml under the folder res/menu which content shows below.
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<!-- Search, should appear as action button -->
<item android:id="#+id/action_search"
android:icon="#drawable/Core_Icons/unstyled/hdpi/ic_action_search"
android:title="#string/action_search"
android:showAsAction="ifRoom" />
<!-- Settings, should always be in the overflow -->
<item android:id="#+id/action_settings"
android:title="#string/action_settings"
android:showAsAction="never" />
</menu>
Could someone please tell me why IDE can't find the icon ic_action_search.png? thanks.

Unfortunately the resource folders do not support directory hierarchies (sub-folders), so you will need to move all icons to the parent folder (drawable).
Then reference it like this: android:icon="#drawable/ic_action_search"
https://code.google.com/p/android/issues/detail?id=2018