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## Sencha Documentation

# Ext.TaskManager

####

    HierarchyExt.util.TaskRunnerExt.TaskManager

A static Ext.util.TaskRunner instance that can be used to start and stop arbitrary tasks. See Ext.util.TaskRunner for supported methods and task config properties.

    // Start a simple clock task that updates a div once per second
    var task = {
        run: function(){
            Ext.fly('clock').update(new Date().format('g:i:s A'));
        },
        interval: 1000 //1 second
    }
    Ext.TaskManager.start(task);

See the start method for details about how to configure a task object.

Defined By

### Methods

Ext.util.TaskRunner
view source
TaskManager( [Number interval]) : void

### Parameters

- interval : Number

  (optional) The minimum precision in milliseconds supported by this TaskRunner instance (defaults to 10)

### Returns

- void

Ext.util.TaskRunner
view source
start( [Object task]) : Object

Starts a new task.

Starts a new task.

### Parameters

- task : Object

  A config object that supports the following properties:

  - `run` : Function

    The function to execute each time the task is invoked. The function will be called at each interval and passed the `args` argument if specified, and the current invocation count if not.

    If a particular scope (`this` reference) is required, be sure to specify it using the `scope` argument.

    Return `false` from this function to terminate the task.

  - `interval` : Number
    The frequency in milliseconds with which the task should be invoked.
  - `args` : Array
    (optional) An array of arguments to be passed to the function specified by `run`. If not specified, the current invocation count is passed.
  - `scope` : Object
    (optional) The scope (`this` reference) in which to execute the `run` function. Defaults to the task config object.
  - `duration` : Number
    (optional) The length of time in milliseconds to invoke the task before stopping automatically (defaults to indefinite).
  - `repeat` : Number
    (optional) The number of times to invoke the task before stopping automatically (defaults to indefinite).

  Before each invocation, Ext injects the property `taskRunCount` into the task object so that calculations based on the repeat count can be performed.

### Returns

- Object

  The task

Ext.util.TaskRunner
view source
stop( Object task) : Object

Stops an existing running task.

Stops an existing running task.

### Parameters

- task : Object

  The task to stop

### Returns

- Object

  The task

Ext.util.TaskRunner
view source
stopAll : void

Stops all tasks that are currently running.

Stops all tasks that are currently running.

### Returns

- void