CODEWITHSUNDEEP
android-layoutlayout-inflaterroboguice
Mihaela Romanca
Mihaela Romanca

Reputation: 1368

Injected views remain null for inflated layouts

Can I use Roboguice @InjectView on elements that are included in a layout that will be inflated? It seems right to me that the elements are declaired @Nullable at first, as they are not known until the inflate is done. But after inflate, the elements still remain null until a "findViewById" is done.

As an example: I use the following code to inject a nullable textview (the title) that is included in title_layout that will be inflated in the main layout:

@Nullable @InjectView(R.id.title) TextView title;
@InjectView(R.id.title_info) LinearLayout titleContainer;

And then in onCreate() method I do this:

setContentView(R.layout.main);
inflater.inflate(R.layout.title_layout, titleContainer);

And I have the main.xml:

<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
  <LinearLayout
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:id="@+id/title_info">
  </LinearLayout>
</LinearLayot>

and title_layout.xml:

  <LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <TextView
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:id="@+id/title" 
      android:text="my title" />
</LinearLayot>

The title (TextView) from the inflated view is always null, even after the title_layout is inflated.

Doing this:

setContentView(R.layout.main);
inflater.inflate(R.layout.title_layout, titleContainer);
title = (TextView)findViewById(R.id.title);\

solves the problem.

Is there any way to use @InjectView?

Upvotes: 0

Views: 1196

Answers (1)

R_B
R_B

Reputation: 41

I had the same problem - turns out I was extending Activity instead of RoboActivity, so it was never handling the injection.

Upvotes: 2

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