Custom Layout Inflation with Fragments in Robolectric not working

Question

When inflating a layout in a Fragment, with the LayoutInflater, i am getting this exception:

 ./res/layout/locations_list.xml line #-1 (sorry, not yet implem         


        

Answer 1

I figured it out, and if you got stock to such an situation just look for your IDs in the XML, even though

 android:id="@+id/android:list"

is often seen in some example code it must be:

 android:id="@android:id/list"

Answer 2

In my case I got this problem when I had this in my app:

    <dependency>
        <groupId>com.google.android</groupId>
        <artifactId>support-v4</artifactId>
        <version>r13</version>
    </dependency>

but this in my unittest project:

    <dependency>
        <groupId>com.google.android</groupId>
        <artifactId>support-v4</artifactId>
        <version>r7</version>
    </dependency>

The older version of the support library I used in the tests didn't contain the class I was trying to use (android.support.v4.widget.DrawerLayout).

Answer 3

In my case, my FragmentActivity XML was inflating a Fragment that was expecting a Bundle. I swapped the XML for a FrameLayout holder and added the fragment with the proper bundle in the activity.

Answer 4

The last version of Robolectric (3.0-Snapshot) has some problems with customized views.

To fix that, do the follow:

1. In the module app where your code is, create a file called project.properties, at the same level as AndroidManifest.xml
2. Fill the content with reference to the class folder of build. e.g. for StaggeredGridView:

android.library.reference.1=../../build/intermediates/exploded-aar/com.etsy.android.grid/library/1.0.5

Here you must check three things:

• There should be one line per reference
• Each reference has one number (1, 2, 3), which should be increase by one each time
• The version number folder at the end must match with the version number in your build.gradle file.

You have an example of project working here: https://github.com/jiahaoliuliu/RobolectricSample/blob/master/app/src/main/project.properties