Titanium.UI.ActivityIndicator

An activity indicator that lets the user know an action is taking place.

Android	iOS

An activity indicator can be used to show the progress of an operation in the UI to let the user know that some action is taking place. An activity indicator consists of a spinning animation and an optional text message, and is used to indicate an ongoing activity of indeterminate length. To show progress, use Titanium.UI.ProgressBar instead.

Use the Titanium.UI.createActivityIndicator method or <ActivityIndicator> Alloy element to create an ActivityIndicator object.

ActivityIndicator is a view and, like any view, must be added to a window or other top-level view before it can be shown. Unlike most views, ActivityIndicator is hidden by default and must be shown explicitly by calling its Titanium.UI.ActivityIndicator.show method.

Extends: Titanium.UI.View · Since: 0.8

Properties #

accessibilityDisableLongPress#

extendedcreation only

Type: Boolean

Boolean value to remove the long press notification for the device's accessibility service.

Will disable the "double tap and hold for long press" message when selecting an item.

apiName#

extended

Type: String

The name of the API that this proxy corresponds to.

The value of this property is the fully qualified name of the API. For example, Button
returns Ti.UI.Button.

bottom#

Type: Number, String

Bottom position of the view.

Determines the absolute position of the view relative to its parent.

Can be either a float value or a dimension string (for example 100 or '50%'.)

bubbleParent#

extended

Type: Boolean

Indicates if the proxy will bubble an event to its parent.

Some proxies (most commonly views) have a relationship to other proxies, often
established by the add() method. For example, for a button added to a window, a
click event on the button would bubble up to the window. Other common parents are
table sections to their rows, table views to their sections, and scrollable views
to their views. Set this property to false to disable the bubbling to the proxy's parent.

color#

Type: String, Titanium.UI.Color

Color of the message text, as a color name or hex triplet.

For information about color values, see the "Colors" section of Titanium.UI.

elevation#

extended

Type: Number

Base elevation of the view relative to its parent in pixels.

The elevation of a view determines the appearance of its shadow.
Higher elevations produce larger and softer shadows.

Note: The elevation property only works on Titanium.UI.View objects.
Many Android components have a default elevation that cannot be modified.
For more information, see
Google design guidelines: Elevation and shadows.

filterTouchesWhenObscured#

extended

Type: Boolean

Discards touch related events if another app's system overlay covers the view.

This is a security feature to protect an app from "tapjacking", where a malicious app can use a
system overlay to intercept touch events in your app or to trick the end-user to tap on UI
in your app intended for the overlay.

Setting this property to true causes touch related events (including "click") to not be fired
if a system overlay overlaps the view.

font#

Type: Font

Font used for the message text.

height#

Type: String

Width of the view. Only accepts value of Titanium.UI.SIZE, which must be explicitly set in order to
display the message and to position the view correctly.

hiddenBehavior#

extended

Type: Number

Sets the behavior when hiding an object to release or keep the free space

If setting hiddenBehavior to Titanium.UI.HIDDEN_BEHAVIOR_GONE it will automatically release the space the view occupied.
For example: in a vertical layout the views below the object will move up when you hide
an object with hiddenBehavior:Titanium.UI.HIDDEN_BEHAVIOR_GONE.

Titanium.UI.HIDDEN_BEHAVIOR_INVISIBLE. Keeps the space and just hides the object (default).
Titanium.UI.HIDDEN_BEHAVIOR_GONE. Releases the space and hides the object.

Defaults to Titanium.UI.HIDDEN_BEHAVIOR_INVISIBLE.

horizontalMotionEffect#

extended

Type: MinMaxOptions

Adds a horizontal parallax effect to the view

Note that the parallax effect only happens by tilting the device so results can not be seen on Simulator.
To clear all motion effects, use the Titanium.UI.clearMotionEffects method.

id#

extended

Type: String

View's identifier.

The id property of the Ti.UI.View represents the view's identifier. The identifier string does
not have to be unique. You can use this property with Titanium.UI.View.getViewById method.

indicatorColor#

Type: String, Titanium.UI.Color

Color of the animated indicator.

For information about color values, see the "Colors" section of Titanium.UI.

keepHardwareMode#

extended

Type: Boolean

A value indicating the render mode of the View

Set to true to keep hardware mode when using a border and transparent backgrounds.

left#

Type: Number, String

Left position of the view.

Determines the absolute position of the view relative to its parent.

Can be either a float value or a dimension string (for example 100 or '50%'.)

lifecycleContainer#

extended

Type: Titanium.UI.Window, Titanium.UI.TabGroup

The Window or TabGroup whose Activity lifecycle should be triggered on the proxy.

If this property is set to a Window or TabGroup, then the corresponding Activity lifecycle event callbacks
will also be called on the proxy. Proxies that require the activity lifecycle will need this property set
to the appropriate containing Window or TabGroup.

message#

Type: String

Message text.

messageid#

Type: String

Key identifying a string in the locale file to use for the message text.

Only one of message or messageid should be specified.

previewContext#

extended

Type: Titanium.UI.iOS.PreviewContext

The preview context used in the 3D-Touch feature "Peek and Pop".

Preview context to present the "Peek and Pop" of a view. Use an configured instance
of Titanium.UI.iOS.PreviewContext here.

Note: This property can only be used on devices running iOS 9 or later and supporting 3D-Touch.
It is ignored on older devices and can manually be checked using Titanium.UI.iOS.forceTouchSupported.

right#

Type: Number, String

Right position of the view.

Determines the absolute position of the view relative to its parent.

Can be either a float value or a dimension string (for example 100 or '50%'.)

rotation#

extended

Type: Number

Clockwise 2D rotation of the view in degrees.

Translation values are applied to the static post layout value.

rotationX#

extended

Type: Number

Clockwise rotation of the view in degrees (x-axis).

Translation values are applied to the static post layout value.

rotationY#

extended

Type: Number

Clockwise rotation of the view in degrees (y-axis).

Translation values are applied to the static post layout value.

scaleX#

extended

Type: Number

Scaling of the view in x-axis in pixels.

Translation values are applied to the static post layout value.

scaleY#

extended

Type: Number

Scaling of the view in y-axis in pixels.

Translation values are applied to the static post layout value.

style#

Type: Number

The style for the activity indicator.

One of the activity indicator style constants.

top#

Type: Number, String

Top position of the view.

Determines the absolute position of the view relative to its parent.

Can be either a float value or a dimension string (for example 100 or'50%'.)

touchFeedback#

extended

Type: Boolean

A material design visual construct that provides an instantaneous visual confirmation of touch point.

Touch feedback is only applied to a view's background. It is never applied to the view's foreground content
such as a Titanium.UI.ImageView's image.

For Titanium versions older than 9.1.0, touch feedback only works if you set the
Titanium.UI.View.backgroundColor property to a non-transparent color.

touchFeedbackColor#

extended

Type: String

Optional touch feedback ripple color. This has no effect unless touchFeedback is true.

Defaults to provided theme color.

transitionName#

extended

Type: String

A name to identify this view in activity transition.

Name should be unique in the View hierarchy.

translationX#

extended

Type: Number

Horizontal location of the view relative to its left position in pixels.

Translation values are applied to the static post layout value.

translationY#

extended

Type: Number

Vertical location of the view relative to its top position in pixels.

Translation values are applied to the static post layout value.

translationZ#

extended

Type: Number

Depth of the view relative to its elevation in pixels.

Translation values are applied to the static post layout value.

verticalMotionEffect#

extended

Type: MinMaxOptions

Adds a vertical parallax effect to the view

Note that the parallax effect only happens by tilting the device so results can not be seen on Simulator.
To clear all motion effects, use the Titanium.UI.clearMotionEffects method.

width#

Type: String

Width of the view. Only accepts value of Titanium.UI.SIZE, which must be explicitly set in order to
display the message and to position the view correctly.

Methods #

addEventListener #

extended

Adds the specified callback as an event listener for the named event.

Parameters:

Name	Type	Summary	Optional
`name`	`String`	Name of the event.	No
`callback`	`Callback<Titanium.Event>`	Callback function to invoke when the event is fired.	No

applyProperties #

extended

Applies the properties to the proxy.

Properties are supplied as a dictionary. Each key-value pair in the object is applied to the proxy such that
myproxy[key] = value.

Parameters:

Name	Type	Summary	Optional
`props`	`Dictionary`	A dictionary of properties to apply.	No

clearMotionEffects #

extended

Removes all previously added motion effects.

Use this method together with Titanium.UI.horizontalMotionEffect and Titanium.UI.verticalMotionEffect.

fireEvent #

extended

Fires a synthesized event to any registered listeners.

Parameters:

Name	Type	Summary	Optional
`name`	`String`	Name of the event.	No
`event`	`Dictionary`	A dictionary of keys and values to add to the Titanium.Event object sent to the listeners.	Yes

getViewById #

extended

Returns the matching view of a given view ID.

Parameters:

Name	Type	Summary	Optional
`id`	`String`	The ID of the view that should be returned. Use the `id` property in your views to enable it for indexing in this method.	No

Returns: Titanium.UI.View

hide #

Hides the activity indicator and stops the animation.

insertAt #

extended

Inserts a view at the specified position in the children array.

Useful if the layout property is set to horizontal or vertical.

Parameters:

Name	Type	Summary	Optional
`params`	`ViewPositionOptions`	Pass an object that specifies the view to insert and optionally at which position (defaults to end)	No

removeEventListener #

extended

Removes the specified callback as an event listener for the named event.

Multiple listeners can be registered for the same event, so the
callback parameter is used to determine which listener to remove.

When adding a listener, you must save a reference to the callback function
in order to remove the listener later:

var listener = function() { Ti.API.info("Event listener called."); }
window.addEventListener('click', listener);

To remove the listener, pass in a reference to the callback function:

window.removeEventListener('click', listener);

Parameters:

Name	Type	Summary	Optional
`name`	`String`	Name of the event.	No
`callback`	`Callback<Titanium.Event>`	Callback function to remove. Must be the same function passed to `addEventListener`.	No

show #

Shows the activity indicator and starts the animation.

Remember to add the activity indicator to a parent view first,
so it centers properly. This is optional for Android and required
for iOS.

stopAnimation #

extended

Stops a running animation.

Stops a running view Animation.

Events #

rotate #

extended

Fired when the device detects a two finger rotation.

This event is fired when doing a two finger rotation and returning the angle.
The event occurs continuously until a finger is lifted again.

Event Properties:

Name	Type	Summary
`rotate`	`Number`	Rotation in degrees.

Examples #

Simple Activity Indicator

Open a yellow window immediately after a blue window. Show an activity indicator while some code executes and hide it on completion. Then close the yellow window.

Ti.UI.backgroundColor = 'white';

var win1 = Ti.UI.createWindow({
  backgroundColor: 'blue'
});

var win2 = Ti.UI.createWindow({
  backgroundColor: 'yellow'
});

var activityIndicator = Ti.UI.createActivityIndicator({
  color: 'green',
  message: 'Loading ...',
  style: Ti.UI.ActivityIndicatorStyle.DARK,
  top: 10,
  left: 10,
  height: Ti.UI.SIZE,
  width: Ti.UI.SIZE
});

// The activity indicator must be added to a window or view for it to appear
win2.add(activityIndicator);

// eventListeners must always be loaded before the event is likely to fire
// hence, the open() method must be positioned before the window is opened
win2.addEventListener('open', function (e) {
  activityIndicator.show();
  // do some work that takes 6 seconds
  // ie. replace the following setTimeout block with your code
  setTimeout(function() {
    e.source.close();
    activityIndicator.hide();
  }, 6000);
});

win1.open();
win2.open();

Alloy XML Markup

Previous example as two Alloy views. win1.xml:

<Alloy>
    <Window onOpen="openWin2" backgroundColor="blue" />
</Alloy>

function openWin2 () {
    var win2 = Alloy.createController('win2').getView();
    win2.open();
}

<Alloy>
    <Window onOpen="showIndicator" backgroundColor="yellow">
        <!-- Define the styling properties in the TSS file -->
        <ActivityIndicator id="activityIndicator" message="Loading..."/>
    </Window>
</Alloy>

function showIndicator(e) {
    $.activityIndicator.show();
    // do some work that takes 6 seconds
    // ie. replace the following setTimeout block with your code
    setTimeout(function() {
        e.source.close();
        $.activityIndicator.hide();
    }, 6000);
}

Notificationchannels

Launchoptionstype

Notificationparams

Usernotificationattachment

Usernotificationsettings

Mediascannerresponse

Clipboarditemstype

Systemimageparameters

Titanium.UI.ActivityIndicator ​

Properties #

accessibilityDisableLongPress#

apiName#

bottom#

bubbleParent#

color#

elevation#

filterTouchesWhenObscured#

font#

height#

hiddenBehavior#

horizontalMotionEffect#

id#

indicatorColor#

keepHardwareMode#

left#

lifecycleContainer#

message#

messageid#

previewContext#

right#

rotation#

rotationX#

rotationY#

scaleX#

scaleY#

style#

tooltip#

top#

touchFeedback#

touchFeedbackColor#

transitionName#

translationX#

translationY#

translationZ#

Titanium.UI.ActivityIndicator