ContentResolver.RegisterContentObserver(Uri, Boolean, ContentObserver) Method
Definition
Important
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Register an observer class that gets callbacks when data identified by a given content URI changes.
[Android.Runtime.Register("registerContentObserver", "(Landroid/net/Uri;ZLandroid/database/ContentObserver;)V", "")]
public void RegisterContentObserver (Android.Net.Uri uri, bool notifyForDescendants, Android.Database.ContentObserver observer);[<Android.Runtime.Register("registerContentObserver", "(Landroid/net/Uri;ZLandroid/database/ContentObserver;)V", "")>]
member this.RegisterContentObserver : Android.Net.Uri * bool * Android.Database.ContentObserver -> unitParameters
- uri
- Uri
The URI to watch for changes. This can be a specific row URI, or a base URI for a whole class of content.
- notifyForDescendants
- Boolean
When false, the observer will be notified
whenever a change occurs to the exact URI specified by
uri or to one of the URI's ancestors in the path
hierarchy. When true, the observer will also be notified
whenever a change occurs to the URI's descendants in the path
hierarchy.
- observer
- ContentObserver
The object that receives callbacks when changes occur.
- Attributes
Remarks
Register an observer class that gets callbacks when data identified by a given content URI changes.
Starting in android.os.Build.VERSION_CODES#O, all content notifications must be backed by a valid ContentProvider.
Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.