WindowContentFrameStats Class
Definition
Important
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This class contains window content frame statistics.
[Android.Runtime.Register("android/view/WindowContentFrameStats", DoNotGenerateAcw=true)]
public sealed class WindowContentFrameStats : Android.Views.FrameStats, Android.OS.IParcelable, IDisposable[<Android.Runtime.Register("android/view/WindowContentFrameStats", DoNotGenerateAcw=true)>]
type WindowContentFrameStats = class
inherit FrameStats
interface IParcelable
interface IJavaObject
interface IDisposable
interface IJavaPeerable- Inheritance
- Attributes
- Implements
Remarks
This class contains window content frame statistics. For example, a window content is rendred in frames when a view is scrolled. The frame statistics are a snapshot for the time interval from #getStartTimeNano() to #getEndTimeNano().
The key idea is that in order to provide a smooth user experience an application has to draw a frame at a specific time interval obtained by calling #getRefreshPeriodNano(). If the application does not render a frame every refresh period the user will see irregular UI transitions.
An application posts a frame for presentation by synchronously rendering its contents in a buffer which is then posted or posting a buffer to which the application is asychronously rendering the content via GL. After the frame is posted and rendered (potentially asynchronosly) it is presented to the user. The time a frame was posted can be obtained via #getFramePostedTimeNano(int), the time a frame content was rendered and ready for dsiplay (GL case) via #getFrameReadyTimeNano(int), and the time a frame was presented on the screen via #getFramePresentedTimeNano(int).
Java documentation for android.view.WindowContentFrameStats.
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.
Fields
| Name | Description |
|---|---|
| UndefinedTimeNano |
Undefined time. (Inherited from FrameStats) |
Properties
| Name | Description |
|---|---|
| Class |
Returns the runtime class of this |
| Creator |
Gets the parcelable creator for WindowContentFrameStats instances. |
| EndTimeNano |
Gets the end time of the interval for which these statistics apply. (Inherited from FrameStats) |
| FrameCount |
Gets the number of frames for which there is data. (Inherited from FrameStats) |
| Handle |
The handle to the underlying Android instance. (Inherited from Object) |
| 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. |
| PeerReference |
Gets the JNI object reference for this Java peer. (Inherited from Object) |
| RefreshPeriodNano |
Gets the refresh period of the display hosting the window(s) for which these statistics apply. (Inherited from FrameStats) |
| StartTimeNano |
Gets the start time of the interval for which these statistics apply. (Inherited from FrameStats) |
| ThresholdClass |
Gets the JNI class handle used by the .NET for Android binding runtime. (Inherited from FrameStats) |
| ThresholdType |
Gets the managed type used by the .NET for Android binding runtime. (Inherited from FrameStats) |
Methods
| Name | Description |
|---|---|
| Clone() |
Creates and returns a copy of this object. (Inherited from Object) |
| Construct(JniObjectReference, JniObjectReferenceOptions) | (Inherited from JavaObject) |
| DescribeContents() |
Describe the kinds of special objects contained in this Parcelable's marshalled representation. |
| 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) |
| GetFramePostedTimeNano(Int32) |
Get the time a frame at a given index was posted by the producer (e. |
| GetFramePresentedTimeNano(Int32) |
Get the time a frame at a given index was presented. (Inherited from FrameStats) |
| GetFrameReadyTimeNano(Int32) |
Get the time a frame at a given index was ready for presentation. |
| 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) |
| 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) |
| WriteToParcel(Parcel, ParcelableWriteFlags) |
Flatten this object in to a Parcel. |
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) |
| IJavaPeerable.UnregisterFromRuntime() | |
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 |