ControllableTask

public abstract class ControllableTask extends CancellableTask

java.lang.Object
↳	com.google.android.gms.tasks.Task
	↳	com.google.firebase.storage.CancellableTask
		↳	com.google.firebase.storage.ControllableTask

Known direct subclasses

StorageTask

A controllable Task that has a synchronized state machine.

Known indirect subclasses

`FileDownloadTask`	A task that downloads bytes of a GCS blob to a specified File.
`StreamDownloadTask`	A task that downloads bytes of a GCS blob.
`UploadTask`	An controllable task that uploads and fires events for success, progress and failure.

Represents an asynchronous operation that can be paused, resumed and canceled. This task also receives progress and other state change notifications.

Parameters
	the type of state this operation returns in events.

Summary

Public constructors
`ControllableTask()`

Public methods
`abstract @NonNull ControllableTask`	`addOnPausedListener(@NonNull OnPausedListener<Object> listener)` Adds a listener that is called when the Task becomes paused.
`abstract @NonNull ControllableTask`	`addOnPausedListener( @NonNull Activity activity, @NonNull OnPausedListener<Object> listener )` Adds a listener that is called when the Task becomes paused.
`abstract @NonNull ControllableTask`	`addOnPausedListener( @NonNull Executor executor, @NonNull OnPausedListener<Object> listener )` Adds a listener that is called when the Task becomes paused.
`abstract boolean`	`isPaused()`
`abstract boolean`	`pause()` Attempts to pause the task.
`abstract boolean`	`resume()` Attempts to resume this task.

`abstract @NonNull CancellableTask`	`addOnProgressListener(@NonNull OnProgressListener<Object> listener)` Adds a listener that is called periodically while the ControllableTask executes.
`abstract @NonNull CancellableTask`	`addOnProgressListener( @NonNull Activity activity, @NonNull OnProgressListener<Object> listener )` Adds a listener that is called periodically while the ControllableTask executes.
`abstract @NonNull CancellableTask`	`addOnProgressListener( @NonNull Executor executor, @NonNull OnProgressListener<Object> listener )` Adds a listener that is called periodically while the ControllableTask executes.
`abstract boolean`	`cancel()` Attempts to cancel the task.
`abstract boolean`	`isCanceled()`
`abstract boolean`	`isInProgress()`

`Task`	`addOnCanceledListener(OnCanceledListener p)`
`Task`	`addOnCompleteListener(OnCompleteListener p)`
`abstract Task`	`addOnFailureListener(OnFailureListener p)`
`abstract Task`	`addOnSuccessListener(OnSuccessListener<Object> p)`
`Task`	`continueWith( Continuation p )`
`Task`	`continueWithTask( ContinuationTask> p )`
`abstract Exception`	`getException()`
`abstract TResult`	`getResult()`
`abstract boolean`	`isCanceled()`
`abstract boolean`	`isComplete()`
`abstract boolean`	`isSuccessful()`
`Task`	`onSuccessTask( SuccessContinuation p )`

public ControllableTask()

public abstract @NonNull ControllableTask addOnPausedListener(@NonNull OnPausedListener<Object> listener)

Adds a listener that is called when the Task becomes paused.

Returns
`@NonNull ControllableTask`	this Task

public abstract @NonNull ControllableTask addOnPausedListener(
    @NonNull Activity activity,
    @NonNull OnPausedListener<Object> listener
)

Adds a listener that is called when the Task becomes paused.

Parameters
`@NonNull Activity activity`	When the supplied `Activity` stops, this listener will automatically be removed.

Returns
`@NonNull ControllableTask`	this Task

public abstract @NonNull ControllableTask addOnPausedListener(
    @NonNull Executor executor,
    @NonNull OnPausedListener<Object> listener
)

Adds a listener that is called when the Task becomes paused.

Parameters
`@NonNull Executor executor`	the executor to use to call the listener

Returns
`@NonNull ControllableTask`	this Task

public abstract boolean isPaused()

Returns
`boolean`	true if the task has been paused.

public abstract boolean pause()

Attempts to pause the task. A paused task can later be resumed.

Returns
`boolean`	true if this task was successfully paused or is in the process of being paused. Returns false if the task is already completed or in a state that cannot be paused.

public abstract boolean resume()

Attempts to resume this task.

Returns
`boolean`	true if the task is successfully resumed or is in the process of being resumed. Returns false if the task is already completed or in a state that cannot be resumed.