Develop Reference

Android Studio Rendering fragment issue

I am, at the moment, trying to make a google maps app using android studio.
Right now, everything is fine, except for one thing, when i go to the "Design" Tab, in the XML file i have this Redering message:
Rendering Problems A tag allows a layout file to
dynamically include different layouts at runtime. At layout editing
time the specific layout to be used is not known. You can choose which
layout you would like previewed while editing the layout...
And the main problem is that I cannot use any of the gui components in my layout, I searched about my problem and i understood that with this error, people couldn't see their map but they could put on textfields, widgets, layouts, etc.
But for me, my preview is completly frozen and i can't do any modification.
Picture of my android studio page.

As you can change the fragments dynamically with your code, android studio doesn't know which layout to show in design time. This is the reason of your error.
To specifically tell android which layout to show, add tools:layout="#layout/Your_layout_name" attribute to your fragment.
There is also a shortcut link below the error description which you have told. Just click on the link and android will add it for you and you will see the fragment in your layout with no rendering error messages.
For a detailed example:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.insane.fragmenttest.MainActivity">
<fragment
android:id="#+id/testFragmentID"
android:layout_width="match_parent"
android:layout_height="match_parent"
class="com.example.insane.fragmenttest.WorkOutDetails"
tools:layout="#layout/fragment_work_out_details" /> <!-- This is the line you want to add. -->
</LinearLayout>

Try using Designtime Layout Attributes. http://tools.android.com/tips/layout-designtime-attributes
These attributes guide Android Studio on how to render run-time attributes in the layout editor.
I think you should include tools:showIn="#layout/activity_maps" in your the <fragment> part of your google_maps_api.xml

Just use this design for the fragment. This solved my problem. Also, refer to this link
<fragment
android:id = "#+id/ma"
android:name = "com.google.android.gms.maps.SupportMapFragment"
android:layout_width = "match_parent"
android:layout_height = "match_parent"
tools:context = "com.example.demomaps.MapsActivity"
/>

Yes I solved this easily..Simply ignore the message and click line that is showing below of the rendering messages.
Actually fragment contains layout inner and if its not include its showing warning that it must contains you can simply ignore this message below the warning then this rendering issue will be resolved.

Total beginner; need help properly setting up my Android 5.0 Toolbar

I do have a toolbar right now, but I don't really understand a lot of the things that I needed to add and copypaste from tutorials and other questions to get it to work. Also, my toolbar doesn't display an elevation even though I set android:elevation to 9dp.
Similar to the Google I/O app, I've set up a resource in /layout for my toolbar. I copied the name and named it "toolbar_actionbar_with_headerbar". Please excuse that it doesn't make any sense.
This is the content:
toolbar_actionbar_with_headerbar.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="128dp">
<Toolbar
android:id="#+id/toolbar"
android:elevation="9dp"
android:layout_height="128dp"
android:layout_width="match_parent"
android:minHeight="?android:attr/actionBarSize"
android:background="?android:attr/colorPrimary"
android:gravity="bottom" />
</LinearLayout>
Now, as it's apparently supposed to be done, I am applying my toolbar to activities by including them in their /layout XML-file. Works fine.
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
[...]
<include layout="#layout/toolbar_actionbar_with_headerbar" />
[...]
</RelativeLayout>
However, this is my first question. When I did that initially, my toolbar was cut off at the sides like all other content of the activity, according to the margins set at the beginning of the xml. Right now, I simply deleted those, and add margins for every text field and other things on the activity. There probably is a better way?
The second question is: Why doesn't my elevation work? I've even tried setting it through code onCreate, but that doesn't work either. And lastly, what would I have to do to properly support devices pre-Level21?
Thanks a lot.

You should read this post: appcompat-v21
Take care when you copy some code text, there are some ” that are wrong, and you should change to ".
About elevation (you can read it in the post too), it only works with lollipop.

ActionBarSherlock + Google Maps API, Failed to find style 'mapViewStyle' in current theme

First of all, I know there are thousens of post asking the same, but after few days looking for a valid answer and try everything I'm still having the same problem...
So let's expose my situation:
I'm using ABS + google maps, so my map view xml is the following:
<?xml version="1.0" encoding="utf-8"?>
<com.actionbarsherlock.internal.view.menu.ActionMenuItemView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/ViewContainer"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<com.google.android.maps.MapView
android:id="#+id/mapview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:apiKey="0PGmnrCR70lothfjc_sFGTdFtESQPOksYKQWYpw"
android:clickable="true" />
</com.actionbarsherlock.internal.view.menu.ActionMenuItemView>
Few days ago everything was good, I was able to do my stuff in the app and everything. But suddenly I just made a little change, insert a framelayout to display more options in the screen. I tried to go back but was impossible...
I'm really deseparated, what can I do? maybe I can create a new project and paste all my code, but not really sure if it's going to work...
Any suggestions?
BTW my error code is this one
Missing styles. Is the correct theme chosen for this layout?
Use the Theme combo box above the layout to choose a different layout, or fix the theme style references.
Failed to find style 'mapViewStyle' in current theme
java.lang.NullPointerException
Exception details are logged in Window > Show View > Error Log
Thank you for your time!

I finally solve the problem, the error in the screen is still there, but just like a warining and when I execute the app same to work fine.
The only think I made, is change the specific layout of ABS and put a frame layout.

Android text overflow

I have one problem with text overflow.
I have searched all the topics about this problem and tried everything but none work for me(android:singleLine etc..).
To be more specific,text is showing in a single line,in textview,in listview even in alert dialog without custom layout.
The strange fact is that in alert dialog is showing only the first time,if i open again the dialog its ok.But the problem persists in lists and textviews......
The most strange part is that sometimes text is overflowing even in other AVD but later are OK,but in QHD and in my phone(HTC DESIRE) is overflowing.In Graphical Layout is looking fine in every configuration.
One layout of the many layouts that have problem is that:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ListView
android:id="#+id/ListView01"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:background="#android:color/transparent"
android:cacheColorHint="#android:color/transparent"
android:fadingEdge="none"
android:fastScrollEnabled="true" >
<!-- Preview: listitem=#layout/listview -->
</ListView>
</LinearLayout>
This problem appeared now,i didnt have it before...i dont know what is causing this because i have update ADT Tools,JDK and i replace my custom Action Bar with ActionBarCompat from ApiDemos.
What is should do?Why this is happening?Maybe is ActionBarCompat fault??
EDIT:
I have attached a screenshot of dialog overflow problem(1 of 2)

To be honest I suggest using a custom alert dialog since languages other than English is not properly measured. Imagine a box [a] where a holds a character, it gets measured on the width of that character. However android doesn't have the width of other characters other than English. I know this because I also work with other languages on android, it messes up my view so what I did was compromise with the text data. Sorry didn't see your view before posting my previous answer.

I found the solution.It was the ActionBarCompat from API Demos that make all these problems!!!After so many days trying to find out,was the ActionBar!!!!!!I reported the issue and i hope to fix that soon!The problem is that i changed
<style name="AppTheme" parent="android:style/Theme.Light">
to
<style name="AppTheme" parent="android:style/Theme.Holo">
in styles.xml and cause that bug.

<include> tag isn't accurately displaying it's content

I have a layout menu which contains this:
<RelativeLayout android:id="#+id/computersMenu"
android:layout_width="50dp"
android:layout_height="50dp">
<include layout="#layout/component_add_button"
android:id="#+id/imagebutton_add_client"/>
</RelativeLayout>
component_add_button.xml:
<?xml version="1.0" encoding="utf-8"?>
<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
android:src="#drawable/ic_menu_add"
android:layout_width="50dp"
android:layout_height="50dp"
android:scaleType="center"/>
Looking at the preview (EDIT: I mean the "Graphical Layout" tab of the xml editor in eclipse which uses the same rendering engine as all devices AFAIK) of component_add_button.xml you can see the image. Great. On the page which is including it it isn't displaying (although it does give you a selectable space where the image should be).
This seems like a really simple example that "should just work". The include tag has always seemed really flaky to me - I'm wondering if I'm missing something in terms of how it actually works...?

As your answer states, the eclipse preview does not display included layouts.
The simplest way to avoid doubt or mistakes in markup when "including" layout's is to design in the original layout then right click the view you wish to extract and select Extract include... from the menu

On a device this functionality worked fine. This seems like a bug in the "Graphical Layout" tab of the layout xml editor shipped with android-sdk.