Activity.FindViewById Method
Definition
Important
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Overloads
| FindViewById(Int32) |
Finds a view that was identified by the |
| FindViewById<T>(Int32) |
Finds a view that was identified by the id attribute from the XML layout resource. |
FindViewById(Int32)
Finds a view that was identified by the android:id XML attribute
that was processed in #onCreate.
[Android.Runtime.Register("findViewById", "(I)Landroid/view/View;", "GetFindViewById_IHandler")]
public virtual Android.Views.View? FindViewById (int id);[<Android.Runtime.Register("findViewById", "(I)Landroid/view/View;", "GetFindViewById_IHandler")>]
abstract member FindViewById : int -> Android.Views.View
override this.FindViewById : int -> Android.Views.ViewParameters
- id
- Int32
the ID to search for
Returns
a view with given ID if found, or null otherwise
- Attributes
Remarks
Finds a view that was identified by the android:id XML attribute that was processed in #onCreate.
<strong>Note:</strong> In most cases -- depending on compiler support -- the resulting view is automatically cast to the target class type. If the target class type is unconstrained, an explicit cast may be necessary.
Java documentation for android.app.Activity.findViewById(int).
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.
Applies to
FindViewById<T>(Int32)
Finds a view that was identified by the id attribute from the XML layout resource.
public T? FindViewById<T> (int id) where T : Android.Views.View;member this.FindViewById : int -> 'T (requires 'T :> Android.Views.View)Type Parameters
- T
The Type of the view to be returned (Button, ListView, etc.).
Parameters
- id
- Int32
The id of the view to find.
Returns
The view if found or null otherwise.
Remarks
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.