ViewStub Class

A ViewStub is an invisible, zero-sized View that can be used to lazily inflate layout resources at runtime.

Syntax

[Android.Runtime.Register("android/view/ViewStub", DoNotGenerateAcw=true)]
public sealed class ViewStub : View

Remarks

A ViewStub is an invisible, zero-sized View that can be used to lazily inflate layout resources at runtime. When a ViewStub is made visible, or when ViewStub.Inflate is invoked, the layout resource is inflated. The ViewStub then replaces itself in its parent with the inflated View or Views. Therefore, the ViewStub exists in the view hierarchy until ViewStub.setVisibility(int) or ViewStub.Inflate is invoked. The inflated View is added to the ViewStub's parent with the ViewStub's layout parameters. Similarly, you can define/override the inflate View's id by using the ViewStub's inflatedId property. For instance:

xml Example

     <ViewStub android:id="@+id/stub"
               android:inflatedId="@+id/subTree"
               android:layout="@layout/mySubTree"
               android:layout_width="120dip"
               android:layout_height="40dip" />

The ViewStub thus defined can be found using the id "stub." After inflation of the layout resource "mySubTree," the ViewStub is removed from its parent. The View created by inflating the layout resource "mySubTree" can be found using the id "subTree," specified by the inflatedId property. The inflated View is finally assigned a width of 120dip and a height of 40dip. The preferred way to perform the inflation of the layout resource is the following:

java Example

     ViewStub stub = (ViewStub) findViewById(R.id.stub);
     View inflated = stub.inflate();

When ViewStub.Inflate is invoked, the ViewStub is replaced by the inflated View and the inflated View is returned. This lets applications get a reference to the inflated View without executing an extra findViewById().

[Android Documentation]

Requirements

Namespace: Android.Views
Assembly: Mono.Android (in Mono.Android.dll)
Assembly Versions: 0.0.0.0
Since: Added in API level 1