SliceProvider

public abstract class SliceProvider
extends ContentProvider

A SliceProvider allows an app to provide Slices to the Android OS. A slice is a piece of app content and actions that can be displayed outside of the app in Android system surfaces or within another app. Slices are identified by a Uri and a SliceProvider allows your app to provide a slice based on a uri.

The primary method to implement in SliceProvider is onBindSlice(Uri) which is called whenever something wants to display a slice from your app. An app can have multiple slices all served from the same slice provider, the Uri passed to onBindSlice will identify the specific slice being requested.

 public MySliceProvider extends SliceProvider {

      public Slice onBindSlice(Uri sliceUri) {
          String path = sliceUri.getPath();
          switch (path) {
              case "/weather":
                  return createWeatherSlice(sliceUri);
              case "/traffic":
                  return createTrafficSlice(sliceUri);
          }
          return null;
      }
 }
 

Slices are constructed with TemplateSliceBuilders.

Slices are not currently live content. They are bound once and shown to the user. If the content in the slice changes due to user interaction or an update in the data being displayed, then ContentResolver.notifyChange(Uri, ContentObserver) should be used to notify the system to request the latest slice from the app.

The provider needs to be declared in the manifest to provide the authority for the app. The authority for most slices is expected to match the package of the application.

 <provider
     android:name="com.android.mypkg.MySliceProvider"
     android:authorities="com.android.mypkg" />
 

Slices can also be identified by an intent. To link an intent with a slice, the slice provider must have an IntentFilter matching the slice intent. When a slice is being requested via an intent, onMapIntentToUri(Intent) will be called and is expected to return an appropriate Uri representing the slice.

 <provider
     android:name="com.android.mypkg.MySliceProvider"
     android:authorities="com.android.mypkg">
     <intent-filter>
         <action android:name="android.intent.action.MY_SLICE_INTENT" />
         <category android:name="android.app.slice.category.SLICE" />
     </intent-filter>
 </provider>
 

Summary

Public constructors

public SliceProvider (String... autoGrantPermissions)

public SliceProvider ()

Public methods

public void attachInfo (Context context, 
                ProviderInfo info)

public final int bulkInsert (Uri uri, 
                ContentValues[] values)

public Bundle call (String method, 
                String arg, 
                Bundle extras)

public final Uri canonicalize (Uri url)

public final int delete (Uri uri, 
                String selection, 
                String[] selectionArgs)

public List<Uri> getPinnedSlices ()

public final String getType (Uri uri)

public final Uri insert (Uri uri, 
                ContentValues values)

public abstract Slice onBindSlice (Uri sliceUri)