Unsupported method: BaseConfig.getApplicationIdSuffix().
The version of Gradle you connect to does not support that method.
To resolve the problem you can change/upgrade the target version of Gradle you connect to.
Alternatively, you can ignore this exception and read other information from the model.

It's a space with gray background color of your own picture in your blog.
https://cdn-images-1.medium.com/max/800/1*oIFbcdjYrIqxU55-B23tjA.gif

Is this code still usable?

Looks like android.support.v17.leanback.widget.OnItemSelectedListener is missing from the current (22.1.1) v17.leanback API too... or am I wrong?

Hey there,

app is crashing once again when moving from rows to header section:

public synchronized void toggleHeadersFragment(final boolean doOpen) {
......
final View rowsContainer = (View) rowsFragment.getView().getParent();

The "android" command is no longer included in the SDK. Any references to it (e.g. by third-party plugins) should be removed.

When I upgrade my sdk from 22 to 24, the layout is wrong.

Any idea? Thanks.

In sdk 22:

Hello,

Thank you for your amazing article.
May I ask the question that in the title of this issue?
Since it would be difficult if we update the leanback lib to the latest version.

I met a problem that I want to control badge visibility base on the header drawer, however, I don't know how to do it since the headerFragment don't give out a way to verify is the drawer open or close.

Thank you in advance for your kind answer!

First,thanks for sharing this codes.
I found a little bugs.
setOnItemSelectedListener(getDefaultItemSelectedListener());
A quick look at the HeadersFragment source code revealed that the method has been removed and it has been replaced by setOnHeaderViewSelectedListener(OnHeaderViewSelectedListener listener).

But I can't set a OnHeaderViewSelectedListener. It can't be accessed from outside package.
I try your method like this

VerticalGridView grid = getActivity().getVerticalGridView(this);
grid.setOnChildSelectedListener(new OnChildSelectedListener() {
@OverRide
public void onChildSelected(ViewGroup viewGroup, View view, int i, long l) {
// we can now update the content accordingly!
}
});

but it don't work.

I need the id and name to have a dinamic custom Fragment - extends RowsFragment.

Thx

Thanks for your great blog posts and samples. I noticed that in your Musixmatch app, the fragments that contain multiple rows automatically hide the brand logo/search orb and fill the full vertical height as you scroll down. In this sample, though, those elements remain shown at the top and the rows scroll in the viewable area below them. What did you do to fix this behavior?

Hi,

First let me say thank you for publishing these guides. They've helped me out quite a bit.

I'm currently trying to build on these techniques; specifically, I'd like to use a VerticalGridFragment as the content view of a BrowseFragment (instead of a RowsFragment). I've got it mostly working, but there are a few strange behaviours that I haven't been able to get around.

The biggest issue at this point is that the animation of the rows_container doesn't appear to work correctly. If the right-most grid item is focused, and the drawer is opened, the rows_container does not slide right, instead its width seems to shrink, and the drawer slides over-top.

Would you be able to provide any insight into what could be happening? I can provide more info about my setup if needed.

Cheers!

Hi,
I hope you are doing well,
I am using LeanBack code for the Android TV platform. But I have one issue. As per our requirement, We need to put the video player on the top of the row fragment and manage focus from rows to the video player.
After more research on the Leanback library, we are supposed to use the BrowseFragment to achieve the expected result.
Now the problem is how to design the preview section at the top with the Video player as the BrowseFragment shows the Rows from the bottom corner of the screen. How can we customization browse fragment or Row Fragment to resolve this?

Episode 3 is crashign due to following error in TvDemoActivity.java file:

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.sample.example.TvDemoActivity}: java.lang.ClassCastException: android.widget.FrameLayout cannot be cast to com.sample.example.CustomFrameLayout

Hi dextorer,

I tested your source code episode_4 today, and I got default activity not found error.
It could be resolved by adding tag on line 53 and 56.
Just for information.

Your source code helps me studying android TV app, thank you.

Hi,

Testing to load 10 rows of 100 CardPresenters, it gets very laggy when fast scrolling even on very powerful android boxes.

Picasso v 2.4 has pauseTag() and resumeTag() made for this exact purpose. Their sample app uses a AbsListView onScrollListener and pauses/resumes the picasso bitmap loading in (fast) scroll mode.

Any way to implement this with leanback and your CustomRowFragment?