# RowsSupportFragment.MainFragmentRowsAdapter

Artifact: [androidx.leanback:leanback](https://developer.android.com/jetpack/androidx/releases/leanback) [View Source](https://cs.android.com/search?q=file:androidx/leanback/app/RowsSupportFragment.java+class:androidx.leanback.app.RowsSupportFragment.MainFragmentRowsAdapter) Added in [1.1.0](https://developer.android.com/jetpack/androidx/releases/leanback#1.1.0)

*** ** * ** ***


```
public class RowsSupportFragment.MainFragmentRowsAdapter extends BrowseSupportFragment.MainFragmentRowsAdapter<RowsSupportFragment>
```

<br />

|---|---|---|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object.html) |||
| ↳ | [androidx.leanback.app.BrowseSupportFragment.MainFragmentRowsAdapter](https://developer.android.com/reference/androidx/leanback/app/BrowseSupportFragment.MainFragmentRowsAdapter)\<[RowsSupportFragment](https://developer.android.com/reference/androidx/leanback/app/RowsSupportFragment)\> ||
|   | ↳ | [androidx.leanback.app.RowsSupportFragment.MainFragmentRowsAdapter](https://developer.android.com/reference/androidx/leanback/app/RowsSupportFragment.MainFragmentRowsAdapter) |

*** ** * ** ***

The adapter that RowsSupportFragment implements BrowseSupportFragment.MainFragmentRowsAdapter.

| See also |
|---|---|
| `https://developer.android.com/reference/androidx/leanback/app/RowsSupportFragment#getMainFragmentRowsAdapter()` |   |

## Summary

| ### Public constructors |
|---|
| `https://developer.android.com/reference/androidx/leanback/app/RowsSupportFragment.MainFragmentRowsAdapter#MainFragmentRowsAdapter(androidx.leanback.app.RowsSupportFragment)(https://developer.android.com/reference/androidx/leanback/app/RowsSupportFragment fragment)` |

| ### Public methods |
|---|---|
| `https://developer.android.com/reference/androidx/leanback/widget/RowPresenter.ViewHolder` | `https://developer.android.com/reference/androidx/leanback/app/RowsSupportFragment.MainFragmentRowsAdapter#findRowViewHolderByPosition(int)(int position)` |
| `int` | `https://developer.android.com/reference/androidx/leanback/app/RowsSupportFragment.MainFragmentRowsAdapter#getSelectedPosition()()` |
| `void` | `https://developer.android.com/reference/androidx/leanback/app/RowsSupportFragment.MainFragmentRowsAdapter#setAdapter(androidx.leanback.widget.ObjectAdapter)(https://developer.android.com/reference/androidx/leanback/widget/ObjectAdapter adapter)` Set the visibility titles/hover of browse rows. |
| `void` | `https://developer.android.com/reference/androidx/leanback/app/RowsSupportFragment.MainFragmentRowsAdapter#setOnItemViewClickedListener(androidx.leanback.widget.OnItemViewClickedListener)(https://developer.android.com/reference/androidx/leanback/widget/OnItemViewClickedListener listener)` Sets an item clicked listener on the fragment. |
| `void` | `https://developer.android.com/reference/androidx/leanback/app/RowsSupportFragment.MainFragmentRowsAdapter#setOnItemViewSelectedListener(androidx.leanback.widget.OnItemViewSelectedListener)(https://developer.android.com/reference/androidx/leanback/widget/OnItemViewSelectedListener listener)` Sets an item selection listener. |
| `void` | `https://developer.android.com/reference/androidx/leanback/app/RowsSupportFragment.MainFragmentRowsAdapter#setSelectedPosition(int,boolean)(int rowPosition, boolean smooth)` Selects a Row. |
| `void` | `https://developer.android.com/reference/androidx/leanback/app/RowsSupportFragment.MainFragmentRowsAdapter#setSelectedPosition(int,boolean,androidx.leanback.widget.Presenter.ViewHolderTask)( int rowPosition, boolean smooth, https://developer.android.com/reference/androidx/leanback/widget/Presenter.ViewHolderTask rowHolderTask )` Selects a Row and perform an optional task on the Row. |

### Inherited methods

From [androidx.leanback.app.BrowseSupportFragment.MainFragmentRowsAdapter](https://developer.android.com/reference/androidx/leanback/app/BrowseSupportFragment.MainFragmentRowsAdapter) `final T` `https://developer.android.com/reference/androidx/leanback/app/BrowseSupportFragment.MainFragmentRowsAdapter#getFragment()()`

## Public constructors

### MainFragmentRowsAdapter

Added in [1.1.0](https://developer.android.com/jetpack/androidx/releases/leanback#1.1.0)

```
public MainFragmentRowsAdapter(RowsSupportFragment fragment)
```

## Public methods

### findRowViewHolderByPosition

```
public RowPresenter.ViewHolder findRowViewHolderByPosition(int position)
```

| Parameters |
|---|---|
| `int position` | Position of Row. |

| Returns |
|---|---|
| `https://developer.android.com/reference/androidx/leanback/widget/RowPresenter.ViewHolder` | Row ViewHolder. |

### getSelectedPosition

```
public int getSelectedPosition()
```

| Returns |
|---|---|
| `int` | The position of selected row. |

### setAdapter

```
public void setAdapter(ObjectAdapter adapter)
```

Set the visibility titles/hover of browse rows.

### setOnItemViewClickedListener

```
public void setOnItemViewClickedListener(OnItemViewClickedListener listener)
```

Sets an item clicked listener on the fragment.

### setOnItemViewSelectedListener

```
public void setOnItemViewSelectedListener(OnItemViewSelectedListener listener)
```

Sets an item selection listener.

### setSelectedPosition

```
public void setSelectedPosition(int rowPosition, boolean smooth)
```

Selects a Row.

### setSelectedPosition

```
public void setSelectedPosition(
    int rowPosition,
    boolean smooth,
    Presenter.ViewHolderTask rowHolderTask
)
```

Selects a Row and perform an optional task on the Row.