CountDownTimer Class

Reference

Definition

Namespace:: Android.OS

Assembly:: Mono.Android.dll

Important

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Schedule a countdown until a time in the future, with regular notifications on intervals along the way.

[Android.Runtime.Register("android/os/CountDownTimer", DoNotGenerateAcw=true)]
public abstract class CountDownTimer : Java.Lang.Object

[<Android.Runtime.Register("android/os/CountDownTimer", DoNotGenerateAcw=true)>]
type CountDownTimer = class
    inherit Object

Inheritance: Object

Object
CountDownTimer

Attributes: RegisterAttribute

Remarks

Schedule a countdown until a time in the future, with regular notifications on intervals along the way.

Example of showing a 30 second countdown in a text field:

<div> <div class="ds-selector-tabs"><section><h3 id="kotlin">Kotlin</h3>

object : CountDownTimer(30000, 1000) {

                override fun onTick(millisUntilFinished: Long) {
                    mTextField.setText("seconds remaining: " + millisUntilFinished / 1000)
                }

                override fun onFinish() {
                    mTextField.setText("done!")
                }
            }.start()

</section><section><h3 id="java">Java</h3>

new CountDownTimer(30000, 1000) {

                public void onTick(long millisUntilFinished) {
                    mTextField.setText("seconds remaining: " + millisUntilFinished / 1000);
                }

                public void onFinish() {
                    mTextField.setText("done!");
                }
            }.start();

</section></div></div>

The calls to #onTick(long) are synchronized to this object so that one call to #onTick(long) won't ever occur before the previous callback is complete. This is only relevant when the implementation of #onTick(long) takes an amount of time to execute that is significant compared to the countdown interval.

Java documentation for android.os.CountDownTimer.

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

CountDownTimer(Int64, Int64)
CountDownTimer(IntPtr, JniHandleOwnership)	A constructor used when creating managed representations of JNI objects; called by the runtime.

Properties

Class	Returns the runtime class of this `Object`. (Inherited from Object)
Handle	The handle to the underlying Android instance. (Inherited from Object)
JniIdentityHashCode	(Inherited from Object)
JniPeerMembers
PeerReference	(Inherited from Object)
ThresholdClass	This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.
ThresholdType	This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.

Methods

Cancel()	Cancel the countdown.
Clone()	Creates and returns a copy of this object. (Inherited from Object)
Dispose()	(Inherited from Object)
Dispose(Boolean)	(Inherited from Object)
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)
OnFinish()	Callback fired when the time is up.
OnTick(Int64)	Callback fired on regular interval.
SetHandle(IntPtr, JniHandleOwnership)	Sets the Handle property. (Inherited from Object)
Start()	Start the countdown.
ToArray<T>()	(Inherited from Object)
ToString()	Returns a string representation of the object. (Inherited from Object)
UnregisterFromRuntime()	(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

IJavaPeerable.Disposed()	(Inherited from Object)
IJavaPeerable.DisposeUnlessReferenced()	(Inherited from Object)
IJavaPeerable.Finalized()	(Inherited from Object)
IJavaPeerable.JniManagedPeerState	(Inherited from Object)
IJavaPeerable.SetJniIdentityHashCode(Int32)	(Inherited from Object)
IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates)	(Inherited from Object)
IJavaPeerable.SetPeerReference(JniObjectReference)	(Inherited from Object)

Extension Methods

JavaCast<TResult>(IJavaObject)	Performs an Android runtime-checked type conversion.
JavaCast<TResult>(IJavaObject)
GetJniTypeName(IJavaPeerable)

Applies to

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