ViewGroup.LayoutParams Class
Definition
Important
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LayoutParams are used by views to tell their parents how they want to be laid out.
[Android.Runtime.Register("android/view/ViewGroup$LayoutParams", DoNotGenerateAcw=true)]
public class ViewGroup.LayoutParams : Java.Lang.Object[<Android.Runtime.Register("android/view/ViewGroup$LayoutParams", DoNotGenerateAcw=true)>]
type ViewGroup.LayoutParams = class
inherit Object- Inheritance
- Derived
- Attributes
Remarks
LayoutParams are used by views to tell their parents how they want to be laid out. See android.R.styleable#ViewGroup_Layout ViewGroup Layout Attributes for a list of all child view attributes that this class supports.
The base LayoutParams class just describes how big the view wants to be for both width and height. For each dimension, it can specify one of: <ul> <li>FILL_PARENT (renamed MATCH_PARENT in API Level 8 and higher), which means that the view wants to be as big as its parent (minus padding) <li> WRAP_CONTENT, which means that the view wants to be just big enough to enclose its content (plus padding) <li> an exact number </ul> There are subclasses of LayoutParams for different subclasses of ViewGroup. For example, AbsoluteLayout has its own subclass of LayoutParams which adds an X and Y value.
<div class="special reference"> <h3>Developer Guides</h3>
For more information about creating user interface layouts, read the XML Layouts developer guide.
</div>
Java documentation for android.view.ViewGroup.LayoutParams.
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.
Constructors
| Name | Description |
|---|---|
| ViewGroup.LayoutParams(Context, IAttributeSet) |
Creates a new set of layout parameters. |
| ViewGroup.LayoutParams(Int32, Int32) |
Creates a new set of layout parameters with the specified width and height. |
| ViewGroup.LayoutParams(IntPtr, JniHandleOwnership) |
A constructor used when creating managed representations of JNI objects; called by the runtime. |
| ViewGroup.LayoutParams(ViewGroup+LayoutParams) |
Copy constructor. |
Fields
| Name | Description |
|---|---|
| FillParent |
Obsolete.
Special value for the height or width requested by a View. |
| MatchParent |
Special value for the height or width requested by a View. |
| WrapContent |
Special value for the height or width requested by a View. |
Properties
| Name | Description |
|---|---|
| Class |
Returns the runtime class of this |
| Handle |
The handle to the underlying Android instance. (Inherited from Object) |
| Height |
Information about how tall the view wants to be. |
| JniIdentityHashCode |
Gets the identity hash code assigned to this Java peer by the interop runtime. (Inherited from Object) |
| JniManagedPeerState | (Inherited from JavaObject) |
| JniPeerMembers |
Gets the JNI peer metadata used by the .NET for Android binding runtime. |
| LayoutAnimationParameters |
Used to animate layouts. |
| PeerReference |
Gets the JNI object reference for this Java peer. (Inherited from Object) |
| ThresholdClass |
Gets the JNI class handle used by the .NET for Android binding runtime. |
| ThresholdType |
Gets the managed type used by the .NET for Android binding runtime. |
| Width |
Information about how wide the view wants to be. |
Methods
| Name | Description |
|---|---|
| Clone() |
Creates and returns a copy of this object. (Inherited from Object) |
| Construct(JniObjectReference, JniObjectReferenceOptions) | (Inherited from JavaObject) |
| Dispose() |
Releases the resources held by this Java peer. (Inherited from Object) |
| Dispose(Boolean) |
Releases the resources held by this Java peer. (Inherited from Object) |
| DisposeUnlessReferenced() | (Inherited from JavaObject) |
| Equals(Object) | (Inherited from JavaObject) |
| Equals(Object) |
Indicates whether some other object is "equal to" this one. (Inherited from Object) |
| GetHashCode() |
Returns a hash code value for the object. (Inherited from Object) |
| JavaFinalize() |
Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. (Inherited from Object) |
| Notify() |
Wakes up a single thread that is waiting on this object's monitor. (Inherited from Object) |
| NotifyAll() |
Wakes up all threads that are waiting on this object's monitor. (Inherited from Object) |
| ResolveLayoutDirection(LayoutDirection) |
Resolve layout parameters depending on the layout direction. |
| SetBaseAttributes(TypedArray, Int32, Int32) |
Extracts the layout parameters from the supplied attributes. |
| SetHandle(IntPtr, JniHandleOwnership) |
Sets the Handle property. (Inherited from Object) |
| SetPeerReference(JniObjectReference, JniObjectReferenceOptions) | (Inherited from JavaObject) |
| ToArray<T>() |
Creates a managed array from this Java array wrapper. (Inherited from Object) |
| ToString() |
Returns a string representation of the object. (Inherited from Object) |
| UnregisterFromRuntime() |
Unregisters this Java peer from the interop runtime. (Inherited from Object) |
| Wait() |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>. (Inherited from Object) |
| Wait(Int64, Int32) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
| Wait(Int64) |
Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object) |
Explicit Interface Implementations
| Name | Description |
|---|---|
| IJavaPeerable.Disposed() | (Inherited from JavaObject) |
| IJavaPeerable.Finalized() | (Inherited from JavaObject) |
| IJavaPeerable.JniObjectReferenceControlBlock | (Inherited from JavaObject) |
| IJavaPeerable.SetJniIdentityHashCode(Int32) | (Inherited from JavaObject) |
| IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates) | (Inherited from JavaObject) |
| IJavaPeerable.SetPeerReference(JniObjectReference) | (Inherited from JavaObject) |
Extension Methods
| Name | Description |
|---|---|
| GetJniTypeName(IJavaPeerable) |
Gets the JNI name of the type of the instance |
| JavaAs<TResult>(IJavaPeerable) |
Try to coerce |
| JavaCast<TResult>(IJavaObject) |
Performs an Android runtime-checked type conversion. |
| JavaCast<TResult>(IJavaObject) | |
| TryJavaCast<TResult>(IJavaPeerable, TResult) |
Try to coerce |