# ThemedSpinnerAdapter.Helper

added in [version 25.1.0](https://developer.android.com/topic/libraries/support-library/revisions)   
belongs to Maven artifact com.android.support:appcompat-v7:28.0.0-alpha1  
Summary: [Ctors](https://developer.android.com/reference/android/support/v7/widget/ThemedSpinnerAdapter.Helper#pubctors) \| [Methods](https://developer.android.com/reference/android/support/v7/widget/ThemedSpinnerAdapter.Helper#pubmethods) \| [Inherited Methods](https://developer.android.com/reference/android/support/v7/widget/ThemedSpinnerAdapter.Helper#inhmethods) \| [\[Expand All\]](https://developer.android.com/reference/android/support/v7/widget/ThemedSpinnerAdapter.Helper#)  

# ThemedSpinnerAdapter.Helper

| This package is part of the Android [support library](https://developer.android.com/topic/libraries/support-library) which is no longer maintained. The support library has been superseded by [AndroidX](https://developer.android.com/jetpack/androidx) which is part of [Jetpack](https://developer.android.com/jetpack). We recommend using the AndroidX libraries in all new projects. You should also consider [migrating](https://developer.android.com/jetpack/androidx/migrate) existing projects to AndroidX. To find the AndroidX class that maps to this deprecated class, see the AndroidX support library [class
| mappings](https://developer.android.com/jetpack/androidx/migrate/class-mappings).


`
public
static
final

class
ThemedSpinnerAdapter.Helper
`


`

extends Object


`

`


`

|---|-------------------------------------------------------|
| java.lang.Object                                         ||
| ↳ | android.support.v7.widget.ThemedSpinnerAdapter.Helper |

<br />

*** ** * ** ***

A helper class which allows easy integration of [ThemedSpinnerAdapter](https://developer.android.com/reference/android/support/v7/widget/ThemedSpinnerAdapter) into existing
[SpinnerAdapter](https://developer.android.com/reference/android/widget/SpinnerAdapter.html)s in a backwards compatible way.

An example [BaseAdapter](https://developer.android.com/reference/android/widget/BaseAdapter.html) implementation would be:  

```
 public class MyAdapter extends BaseAdapter implements ThemedSpinnerAdapter {
     private final ThemedSpinnerAdapter.Helper mDropDownHelper;

     public CheeseAdapter(Context context) {
         mDropDownHelper = new ThemedSpinnerAdapter.Helper(context);
         // ...
     }

     @Override
     public View getDropDownView(int position, View convertView, ViewGroup parent) {
         View view;

         if (convertView == null) {
             // Inflate the drop down using the helper's LayoutInflater
             LayoutInflater inflater = mDropDownHelper.getDropDownViewInflater();
             view = inflater.inflate(R.layout.my_dropdown, parent, false);
         }

         // ...
     }

     @Override
     public void setDropDownViewTheme(@Nullable Resources.Theme theme) {
         // Pass the new theme to the helper
         mDropDownHelper.setDropDownViewTheme(theme);
     }

     @Override
     public Resources.Theme getDropDownViewTheme() {
         // Return the helper's value
         return mDropDownHelper.getDropDownViewTheme();
     }
 }
 
```

<br />

## Summary

|                                                                                                                                ### Public constructors                                                                                                                                ||
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---|
| ` `[ThemedSpinnerAdapter.Helper](https://developer.android.com/reference/android/support/v7/widget/ThemedSpinnerAdapter.Helper#ThemedSpinnerAdapter.Helper(android.content.Context))`(`[Context](https://developer.android.com/reference/android/content/Context.html)` context) ` |

|                                                                                                                                                                                                                                                                                                       ### Public methods                                                                                                                                                                                                                                                                                                        ||
|--------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| ` `[LayoutInflater](https://developer.android.com/reference/android/view/LayoutInflater.html)          | ` `[getDropDownViewInflater](https://developer.android.com/reference/android/support/v7/widget/ThemedSpinnerAdapter.Helper#getDropDownViewInflater())`() ` Returns the [LayoutInflater](https://developer.android.com/reference/android/view/LayoutInflater.html) which should be used when inflating any layouts from your [getDropDownView(int, View, ViewGroup)](https://developer.android.com/reference/android/widget/SpinnerAdapter.html#getDropDownView(int, android.view.View, android.view.ViewGroup)).        |
| ` `[Resources.Theme](https://developer.android.com/reference/android/content/res/Resources.Theme.html) | ` `[getDropDownViewTheme](https://developer.android.com/reference/android/support/v7/widget/ThemedSpinnerAdapter.Helper#getDropDownViewTheme())`() ` Should be called from your adapter's [getDropDownViewTheme()](https://developer.android.com/reference/android/support/v7/widget/ThemedSpinnerAdapter#getDropDownViewTheme()), returning the value returned from this method.                                                                                                                                       |
| ` void`                                                                                                | ` `[setDropDownViewTheme](https://developer.android.com/reference/android/support/v7/widget/ThemedSpinnerAdapter.Helper#setDropDownViewTheme(android.content.res.Resources.Theme))`(`[Resources.Theme](https://developer.android.com/reference/android/content/res/Resources.Theme.html)` theme) ` Should be called from your adapter's [setDropDownViewTheme(Theme)](https://developer.android.com/reference/android/support/v7/widget/ThemedSpinnerAdapter#setDropDownViewTheme(android.content.res.Resources.Theme)) |

| ### Inherited methods |
|-----------------------|---|
| [![](https://developer.android.com/static/assets/images/styles/disclosure_down.png)](https://developer.android.com/reference/android/support/v7/widget/ThemedSpinnerAdapter.Helper#)From class ` java.lang.Object ` |-------------------|-------------------------------| | ` Object`         | ` clone() `                   | | ` boolean`        | ` equals(Object arg0) `       | | ` void`           | ` finalize() `                | | ` final Class<?>` | ` getClass() `                | | ` int`            | ` hashCode() `                | | ` final void`     | ` notify() `                  | | ` final void`     | ` notifyAll() `               | | ` String`         | ` toString() `                | | ` final void`     | ` wait(long arg0, int arg1) ` | | ` final void`     | ` wait(long arg0) `           | | ` final void`     | ` wait() `                    | ||

## Public constructors

### ThemedSpinnerAdapter.Helper

added in [version 25.1.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
ThemedSpinnerAdapter.Helper (Context context)
```

<br />

<br />

|         Parameters          ||
|-----------|------------------|
| `context` | `Context` <br /> |

## Public methods

### getDropDownViewInflater

added in [version 25.1.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
LayoutInflater getDropDownViewInflater ()
```

Returns the [LayoutInflater](https://developer.android.com/reference/android/view/LayoutInflater.html) which should be used when inflating any layouts
from your [getDropDownView(int, View, ViewGroup)](https://developer.android.com/reference/android/widget/SpinnerAdapter.html#getDropDownView(int, android.view.View, android.view.ViewGroup)).

The instance returned will have a correct theme, meaning that any inflated views
will be created with the same theme.

<br />

<br />

|                                              Returns                                               ||
|--------------------------------------------------------------------------------------------|--------|
| [LayoutInflater](https://developer.android.com/reference/android/view/LayoutInflater.html) | <br /> |

### getDropDownViewTheme

added in [version 25.1.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
Resources.Theme getDropDownViewTheme ()
```

Should be called from your adapter's [getDropDownViewTheme()](https://developer.android.com/reference/android/support/v7/widget/ThemedSpinnerAdapter#getDropDownViewTheme()),
returning the value returned from this method.

<br />

|                                                   Returns                                                   ||
|-----------------------------------------------------------------------------------------------------|--------|
| [Resources.Theme](https://developer.android.com/reference/android/content/res/Resources.Theme.html) | <br /> |

### setDropDownViewTheme

added in [version 25.1.0](https://developer.android.com/topic/libraries/support-library/revisions)  

```
void setDropDownViewTheme (Resources.Theme theme)
```

Should be called from your adapter's
[setDropDownViewTheme(Theme)](https://developer.android.com/reference/android/support/v7/widget/ThemedSpinnerAdapter#setDropDownViewTheme(android.content.res.Resources.Theme))

<br />

|                                                                                                                Parameters                                                                                                                 ||
|---------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `theme` | `Resources.Theme`: the theme passed in to [setDropDownViewTheme(Theme)](https://developer.android.com/reference/android/support/v7/widget/ThemedSpinnerAdapter#setDropDownViewTheme(android.content.res.Resources.Theme)) <br /> |

-

  ## Annotations

  - [RecyclerView.EdgeEffectFactory.EdgeDirection](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.EdgeEffectFactory.EdgeDirection)
  - [RecyclerView.ItemAnimator.AdapterChanges](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.ItemAnimator.AdapterChanges)
-

  ## Interfaces

  - [ActionMenuView.OnMenuItemClickListener](https://developer.android.com/reference/android/support/v7/widget/ActionMenuView.OnMenuItemClickListener)
  - [PopupMenu.OnDismissListener](https://developer.android.com/reference/android/support/v7/widget/PopupMenu.OnDismissListener)
  - [PopupMenu.OnMenuItemClickListener](https://developer.android.com/reference/android/support/v7/widget/PopupMenu.OnMenuItemClickListener)
  - [RecyclerView.ChildDrawingOrderCallback](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.ChildDrawingOrderCallback)
  - [RecyclerView.ItemAnimator.ItemAnimatorFinishedListener](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.ItemAnimator.ItemAnimatorFinishedListener)
  - [RecyclerView.LayoutManager.LayoutPrefetchRegistry](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.LayoutManager.LayoutPrefetchRegistry)
  - [RecyclerView.OnChildAttachStateChangeListener](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.OnChildAttachStateChangeListener)
  - [RecyclerView.OnItemTouchListener](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.OnItemTouchListener)
  - [RecyclerView.RecyclerListener](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.RecyclerListener)
  - [RecyclerView.SmoothScroller.ScrollVectorProvider](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.SmoothScroller.ScrollVectorProvider)
  - [SearchView.OnCloseListener](https://developer.android.com/reference/android/support/v7/widget/SearchView.OnCloseListener)
  - [SearchView.OnQueryTextListener](https://developer.android.com/reference/android/support/v7/widget/SearchView.OnQueryTextListener)
  - [SearchView.OnSuggestionListener](https://developer.android.com/reference/android/support/v7/widget/SearchView.OnSuggestionListener)
  - [ShareActionProvider.OnShareTargetSelectedListener](https://developer.android.com/reference/android/support/v7/widget/ShareActionProvider.OnShareTargetSelectedListener)
  - [ThemedSpinnerAdapter](https://developer.android.com/reference/android/support/v7/widget/ThemedSpinnerAdapter)
  - [Toolbar.OnMenuItemClickListener](https://developer.android.com/reference/android/support/v7/widget/Toolbar.OnMenuItemClickListener)
-

  ## Classes

  - [ActionMenuView](https://developer.android.com/reference/android/support/v7/widget/ActionMenuView)
  - [ActionMenuView.LayoutParams](https://developer.android.com/reference/android/support/v7/widget/ActionMenuView.LayoutParams)
  - [AppCompatAutoCompleteTextView](https://developer.android.com/reference/android/support/v7/widget/AppCompatAutoCompleteTextView)
  - [AppCompatButton](https://developer.android.com/reference/android/support/v7/widget/AppCompatButton)
  - [AppCompatCheckBox](https://developer.android.com/reference/android/support/v7/widget/AppCompatCheckBox)
  - [AppCompatCheckedTextView](https://developer.android.com/reference/android/support/v7/widget/AppCompatCheckedTextView)
  - [AppCompatEditText](https://developer.android.com/reference/android/support/v7/widget/AppCompatEditText)
  - [AppCompatImageButton](https://developer.android.com/reference/android/support/v7/widget/AppCompatImageButton)
  - [AppCompatImageView](https://developer.android.com/reference/android/support/v7/widget/AppCompatImageView)
  - [AppCompatMultiAutoCompleteTextView](https://developer.android.com/reference/android/support/v7/widget/AppCompatMultiAutoCompleteTextView)
  - [AppCompatRadioButton](https://developer.android.com/reference/android/support/v7/widget/AppCompatRadioButton)
  - [AppCompatRatingBar](https://developer.android.com/reference/android/support/v7/widget/AppCompatRatingBar)
  - [AppCompatSeekBar](https://developer.android.com/reference/android/support/v7/widget/AppCompatSeekBar)
  - [AppCompatSpinner](https://developer.android.com/reference/android/support/v7/widget/AppCompatSpinner)
  - [AppCompatTextView](https://developer.android.com/reference/android/support/v7/widget/AppCompatTextView)
  - [CardView](https://developer.android.com/reference/android/support/v7/widget/CardView)
  - [DefaultItemAnimator](https://developer.android.com/reference/android/support/v7/widget/DefaultItemAnimator)
  - [DividerItemDecoration](https://developer.android.com/reference/android/support/v7/widget/DividerItemDecoration)
  - [GridLayout](https://developer.android.com/reference/android/support/v7/widget/GridLayout)
  - [GridLayout.Alignment](https://developer.android.com/reference/android/support/v7/widget/GridLayout.Alignment)
  - [GridLayout.LayoutParams](https://developer.android.com/reference/android/support/v7/widget/GridLayout.LayoutParams)
  - [GridLayout.Spec](https://developer.android.com/reference/android/support/v7/widget/GridLayout.Spec)
  - [GridLayoutManager](https://developer.android.com/reference/android/support/v7/widget/GridLayoutManager)
  - [GridLayoutManager.DefaultSpanSizeLookup](https://developer.android.com/reference/android/support/v7/widget/GridLayoutManager.DefaultSpanSizeLookup)
  - [GridLayoutManager.LayoutParams](https://developer.android.com/reference/android/support/v7/widget/GridLayoutManager.LayoutParams)
  - [GridLayoutManager.SpanSizeLookup](https://developer.android.com/reference/android/support/v7/widget/GridLayoutManager.SpanSizeLookup)
  - [LinearLayoutCompat](https://developer.android.com/reference/android/support/v7/widget/LinearLayoutCompat)
  - [LinearLayoutCompat.LayoutParams](https://developer.android.com/reference/android/support/v7/widget/LinearLayoutCompat.LayoutParams)
  - [LinearLayoutManager](https://developer.android.com/reference/android/support/v7/widget/LinearLayoutManager)
  - [LinearLayoutManager.LayoutChunkResult](https://developer.android.com/reference/android/support/v7/widget/LinearLayoutManager.LayoutChunkResult)
  - [LinearSmoothScroller](https://developer.android.com/reference/android/support/v7/widget/LinearSmoothScroller)
  - [LinearSnapHelper](https://developer.android.com/reference/android/support/v7/widget/LinearSnapHelper)
  - [ListPopupWindow](https://developer.android.com/reference/android/support/v7/widget/ListPopupWindow)
  - [OrientationHelper](https://developer.android.com/reference/android/support/v7/widget/OrientationHelper)
  - [PagerSnapHelper](https://developer.android.com/reference/android/support/v7/widget/PagerSnapHelper)
  - [PopupMenu](https://developer.android.com/reference/android/support/v7/widget/PopupMenu)
  - [RecyclerView](https://developer.android.com/reference/android/support/v7/widget/RecyclerView)
  - [RecyclerView.Adapter](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.Adapter)
  - [RecyclerView.AdapterDataObserver](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.AdapterDataObserver)
  - [RecyclerView.EdgeEffectFactory](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.EdgeEffectFactory)
  - [RecyclerView.ItemAnimator](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.ItemAnimator)
  - [RecyclerView.ItemAnimator.ItemHolderInfo](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.ItemAnimator.ItemHolderInfo)
  - [RecyclerView.ItemDecoration](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.ItemDecoration)
  - [RecyclerView.LayoutManager](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.LayoutManager)
  - [RecyclerView.LayoutManager.Properties](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.LayoutManager.Properties)
  - [RecyclerView.LayoutParams](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.LayoutParams)
  - [RecyclerView.OnFlingListener](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.OnFlingListener)
  - [RecyclerView.OnScrollListener](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.OnScrollListener)
  - [RecyclerView.RecycledViewPool](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.RecycledViewPool)
  - [RecyclerView.Recycler](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.Recycler)
  - [RecyclerView.SimpleOnItemTouchListener](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.SimpleOnItemTouchListener)
  - [RecyclerView.SmoothScroller](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.SmoothScroller)
  - [RecyclerView.SmoothScroller.Action](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.SmoothScroller.Action)
  - [RecyclerView.State](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.State)
  - [RecyclerView.ViewCacheExtension](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.ViewCacheExtension)
  - [RecyclerView.ViewHolder](https://developer.android.com/reference/android/support/v7/widget/RecyclerView.ViewHolder)
  - [RecyclerViewAccessibilityDelegate](https://developer.android.com/reference/android/support/v7/widget/RecyclerViewAccessibilityDelegate)
  - [RecyclerViewAccessibilityDelegate.ItemDelegate](https://developer.android.com/reference/android/support/v7/widget/RecyclerViewAccessibilityDelegate.ItemDelegate)
  - [SearchView](https://developer.android.com/reference/android/support/v7/widget/SearchView)
  - [ShareActionProvider](https://developer.android.com/reference/android/support/v7/widget/ShareActionProvider)
  - [SimpleItemAnimator](https://developer.android.com/reference/android/support/v7/widget/SimpleItemAnimator)
  - [SnapHelper](https://developer.android.com/reference/android/support/v7/widget/SnapHelper)
  - [StaggeredGridLayoutManager](https://developer.android.com/reference/android/support/v7/widget/StaggeredGridLayoutManager)
  - [StaggeredGridLayoutManager.LayoutParams](https://developer.android.com/reference/android/support/v7/widget/StaggeredGridLayoutManager.LayoutParams)
  - [SwitchCompat](https://developer.android.com/reference/android/support/v7/widget/SwitchCompat)
  - [ThemedSpinnerAdapter.Helper](https://developer.android.com/reference/android/support/v7/widget/ThemedSpinnerAdapter.Helper)
  - [Toolbar](https://developer.android.com/reference/android/support/v7/widget/Toolbar)
  - [Toolbar.LayoutParams](https://developer.android.com/reference/android/support/v7/widget/Toolbar.LayoutParams)
  - [Toolbar.SavedState](https://developer.android.com/reference/android/support/v7/widget/Toolbar.SavedState)
  - [TooltipCompat](https://developer.android.com/reference/android/support/v7/widget/TooltipCompat)