Class

# MobileProgressWheel

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## Description

The ProgressWheel is an animated spinning wheel used to indicate that a task is in process.

## Properties

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| Name                                                         | Type                                                          | Read-Only | Shared |
|--------------------------------------------------------------|---------------------------------------------------------------|-----------|--------|
| `AccessibilityHint<mobileprogresswheel.accessibilityhint>`   | `String</api/data_types/string>`                              |           |        |
| `AccessibilityLabel<mobileprogresswheel.accessibilitylabel>` | `String</api/data_types/string>`                              |           |        |
| `ControlCount<mobileprogresswheel.controlcount>`             | `Integer</api/data_types/integer>`                            | ✓         |        |
| `Enabled<mobileprogresswheel.enabled>`                       | `Boolean</api/data_types/boolean>`                            |           |        |
| `Height<mobileprogresswheel.height>`                         | `Integer</api/data_types/integer>`                            | ✓         |        |
| `Left<mobileprogresswheel.left>`                             | `Integer</api/data_types/integer>`                            | ✓         |        |
| `LockBottom<mobileprogresswheel.lockbottom>`                 | `Boolean</api/data_types/boolean>`                            |           |        |
| `LockLeft<mobileprogresswheel.lockleft>`                     | `Boolean</api/data_types/boolean>`                            |           |        |
| `LockRight<mobileprogresswheel.lockright>`                   | `Boolean</api/data_types/boolean>`                            |           |        |
| `LockTop<mobileprogresswheel.locktop>`                       | `Boolean</api/data_types/boolean>`                            |           |        |
| `Name<mobileprogresswheel.name>`                             | `String</api/data_types/string>`                              | ✓         |        |
| `Parent<mobileprogresswheel.parent>`                         | `MobileUIControl</api/user_interface/mobile/mobileuicontrol>` | ✓         |        |
| `Shade<mobileprogresswheel.shade>`                           | `Shades<mobileprogresswheel.shades>`                          |           |        |
| `Style<mobileprogresswheel.style>`                           | `Styles<mobileprogresswheel.styles>`                          |           |        |
| `TintColor<mobileprogresswheel.tintcolor>`                   | `ColorGroup</api/graphics/colorgroup>`                        |           |        |
| `Top<mobileprogresswheel.top>`                               | `Integer</api/data_types/integer>`                            | ✓         |        |
| `Visible<mobileprogresswheel.visible>`                       | `Boolean</api/data_types/boolean>`                            |           |        |
| `Width<mobileprogresswheel.width>`                           | `Integer</api/data_types/integer>`                            | ✓         |        |

## Methods

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| Name                                                     | Parameters                                                                                                                                                | Returns                                                       | Shared |
|----------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------|--------|
| `AddConstraint<mobileprogresswheel.addconstraint>`       | constraint As `iOSLayoutConstraint</api/ios/ioslayoutconstraint>`, name As `String</api/data_types/string>` = ""                                          |                                                               |        |
| `AddControl<mobileprogresswheel.addcontrol>`             | child As `MobileUIControl</api/user_interface/mobile/mobileuicontrol>`, isBeingAdded As `Boolean</api/data_types/boolean>` = `False</api/language/false>` |                                                               |        |
| `ClearFocus<mobileprogresswheel.clearfocus>`             |                                                                                                                                                           |                                                               |        |
| `Constraint<mobileprogresswheel.constraint>`             | name As `String</api/data_types/string>`                                                                                                                  | `iOSLayoutConstraint</api/ios/ioslayoutconstraint>`           |        |
| `ControlAt<mobileprogresswheel.controlat>`               | index As `Integer</api/data_types/integer>`                                                                                                               | `MobileUIControl</api/user_interface/mobile/mobileuicontrol>` |        |
| `Controls<mobileprogresswheel.controls>`                 |                                                                                                                                                           | `Iterable</api/language/iterable>`                            |        |
| `Handle<mobileprogresswheel.handle>`                     |                                                                                                                                                           | `Ptr</api/data_types/additional_types/ptr>`                   |        |
| `Refresh<mobileprogresswheel.refresh>`                   |                                                                                                                                                           |                                                               |        |
| `RemoveConstraint<mobileprogresswheel.removeconstraint>` | constraint As `iOSLayoutConstraint</api/ios/ioslayoutconstraint>`                                                                                         |                                                               |        |
|                                                          | name As `String</api/data_types/string>`                                                                                                                  |                                                               |        |
| `RemoveControl<mobileprogresswheel.removecontrol>`       | child As `MobileUIControl</api/user_interface/mobile/mobileuicontrol>`                                                                                    |                                                               |        |
| `SetFocus<mobileprogresswheel.setfocus>`                 |                                                                                                                                                           |                                                               |        |

## Events

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| Name                                   | Parameters | Returns |
|----------------------------------------|------------|---------|
| `Closing<mobileprogresswheel.closing>` |            |         |
| `Opening<mobileprogresswheel.opening>` |            |         |

## Enumerations

<div id="mobileprogresswheel.shades">

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MobileProgressWheel.Shades

### Shades

> Shade options (Dark, Light) for the ProgressWheel.
>
> | Enum  | Description                     |
> |-------|---------------------------------|
> | Light | Visible on darker backgrounds.  |
> | Dark  | Visible on lighter backgrounds. |
>
> <div class="note">
>
> <div class="title">
>
> Note
>
> </div>
>
> Shade is supported for Android only.
>
> </div>

<div id="mobileprogresswheel.styles">

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MobileProgressWheel.Styles

### Styles

> Style options (Default, Large) for the ProgressWheel.
>
> | Enum    | Description                                                |
> |---------|------------------------------------------------------------|
> | Default | The size of the control that should be used in most cases. |
> | Large   | A size larger than the default size.                       |
>
> <div class="note">
>
> <div class="title">
>
> Note
>
> </div>
>
> Style is supported for iOS only.
>
> </div>

## Property descriptions

<div id="mobileprogresswheel.accessibilityhint">

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MobileProgressWheel.AccessibilityHint

**AccessibilityHint** As `String</api/data_types/string>`

> The accessibility hint is a longer description that is read aloud when VoiceOver is enabled.
>
> ``` xojo
> Me.AccessibilityHint = "Click to calculate the value and display the next screen."
> ```
>
> <div class="important">
>
> <div class="title">
>
> Important
>
> </div>
>
> This property is not currently supported for Android.
>
> </div>

<div id="mobileprogresswheel.accessibilitylabel">

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MobileProgressWheel.AccessibilityLabel

**AccessibilityLabel** As `String</api/data_types/string>`

> The accessibility label of of a control is a short name that is read aloud when VoiceOver is enabled.
>
> ``` xojo
> Me.AccessibilityLabel = "Calculate the value."
> ```

<div id="mobileprogresswheel.controlcount">

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MobileProgressWheel.ControlCount

**ControlCount** As `Integer</api/data_types/integer>`

> The number of child controls in the control.
>
> This property is read-only.
>
> <div class="important">
>
> <div class="title">
>
> Important
>
> </div>
>
> This property is supported for iOS only.
>
> </div>

<div id="mobileprogresswheel.enabled">

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MobileProgressWheel.Enabled

**Enabled** As `Boolean</api/data_types/boolean>`

> Indicates whether the control is enabled or disabled.
>
> Disable the button:
>
> ``` xojo
> Button1.Enabled = False
> ```

<div id="mobileprogresswheel.height">

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MobileProgressWheel.Height

**Height** As `Integer</api/data_types/integer>`

> The height of the control.
>
> This property is read-only on iOS.

<div id="mobileprogresswheel.left">

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MobileProgressWheel.Left

**Left** As `Integer</api/data_types/integer>`

> The left position of the control.
>
> This property is read-only on iOS.

<div id="mobileprogresswheel.lockbottom">

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MobileProgressWheel.LockBottom

**LockBottom** As `Boolean</api/data_types/boolean>`

> Determines whether the bottom edge of the control should stay at a set distance from the bottom edge of the parent control, if there is one, or the owning screen.
>
> <div class="important">
>
> <div class="title">
>
> Important
>
> </div>
>
> This property is not currently supported for iOS. Use constraints instead.
>
> </div>
>
> This property can be set in the control's Inspector. The following example sets it in code.
>
> ``` xojo
> Me.LockBottom = True
> ```

<div id="mobileprogresswheel.lockleft">

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MobileProgressWheel.LockLeft

**LockLeft** As `Boolean</api/data_types/boolean>`

> Determines whether the left edge of the control should stay at a set distance from the left edge of the parent control, if there is one, or the owning screen.
>
> LockLeft and Locktop default to `True</api/language/true>` when you add a new control to a screen. Existing controls will be altered only if LockRight and/or LockBottom are not set. *LockLeft* has no effect unless *LockRight* is `True</api/language/true>`.
>
> <div class="important">
>
> <div class="title">
>
> Important
>
> </div>
>
> This property is not currently supported for iOS. Use constraints instead.
>
> </div>
>
> This property can be set in the control's Inspector. The following example sets it in code.
>
> ``` xojo
> Me.LockLeft = True
> ```

<div id="mobileprogresswheel.lockright">

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MobileProgressWheel.LockRight

**LockRight** As `Boolean</api/data_types/boolean>`

> Determines whether the right edge of the control should stay at a set distance from the right edge of the parent control, if there is one, or the owning screen.
>
> <div class="important">
>
> <div class="title">
>
> Important
>
> </div>
>
> This property is not currently supported for iOS. Use constraints instead.
>
> </div>
>
> This property can be set in the control's Inspector. The following example sets it in code.
>
> ``` xojo
> Me.LockRight = True
> ```

<div id="mobileprogresswheel.locktop">

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MobileProgressWheel.LockTop

**LockTop** As `Boolean</api/data_types/boolean>`

> Determines whether the top edge of the control should stay at a set distance from the top edge of the parent control, if there is one, or the owning screen.
>
> LockTop and LockLeft default to `True</api/language/true>` when you add a control to a screen. Existing controls will be altered only if LockRight and/or LockBottom are not set. *LockTop* has no effect unless *LockBottom* is `True</api/language/true>`.
>
> <div class="important">
>
> <div class="title">
>
> Important
>
> </div>
>
> This property is not currently supported for iOS. Use constraints instead.
>
> </div>
>
> This property can be set in the control's Inspector. The following example sets it in code.
>
> ``` xojo
> Me.LockTop = True
> ```

<div id="mobileprogresswheel.name">

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MobileProgressWheel.Name

**Name** As `String</api/data_types/string>`

> The name of the control.
>
> This property is read-only.

<div id="mobileprogresswheel.parent">

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MobileProgressWheel.Parent

**Parent** As `MobileUIControl</api/user_interface/mobile/mobileuicontrol>`

> The parent (sometimes called a "Super") class of the control.
>
> This property is read-only.

<div id="mobileprogresswheel.shade">

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MobileProgressWheel.Shade

**Shade** As `Shades<mobileprogresswheel.shades>`

> The shade of the progress wheel (dark or light).
>
> The default is Dark.
>
> Set the shade to dark:
>
> ``` xojo
> ProgressWheel1.Shade = MobileProgressWheel.Shade.Dark
> ```
>
> <div class="important">
>
> <div class="title">
>
> Important
>
> </div>
>
> This property is supported for Android only.
>
> </div>

<div id="mobileprogresswheel.style">

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MobileProgressWheel.Style

**Style** As `Styles<mobileprogresswheel.styles>`

> The size of the progress wheel (default or large).
>
> The default is Default.
>
> Set the style to Large:
>
> ``` xojo
> ProgressWheel1.Style = MobileProgressWheel.Styles.Large
> ```
>
> <div class="important">
>
> <div class="title">
>
> Important
>
> </div>
>
> This property is supported for iOS only.
>
> </div>

<div id="mobileprogresswheel.tintcolor">

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MobileProgressWheel.TintColor

**TintColor** As `ColorGroup</api/graphics/colorgroup>`

> Changes a control's tint color.
>
> <div class="important">
>
> <div class="title">
>
> Important
>
> </div>
>
> This is supported for iOS only.
>
> </div>
>
> On iOS, the following controls support TintColor:
>
> | Enum        | Description                                                                  |
> |-------------|------------------------------------------------------------------------------|
> | PopupMenu   | The background color will be drawn in the TintColor.                         |
> | ProgressBar | The area indicating the value of the control will be drawn in the TintColor. |
> | Slider      | The area indicating the value of the control will be drawn in the TintColor. |
> | TextArea    | The cursor and text highlight color will be drawn in the TintColor.          |
> | TextField   | The cursor and text highlight color will be drawn in the TintColor.          |

<div id="mobileprogresswheel.top">

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MobileProgressWheel.Top

**Top** As `Integer</api/data_types/integer>`

> The top position of the control.
>
> This property is read-only on iOS.

<div id="mobileprogresswheel.visible">

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MobileProgressWheel.Visible

**Visible** As `Boolean</api/data_types/boolean>`

> Indicates whether the control is visible.
>
> Make a button invisible:
>
> ``` xojo
> Button1.Visible = False
> ```

<div id="mobileprogresswheel.width">

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MobileProgressWheel.Width

**Width** As `Integer</api/data_types/integer>`

> The width of the control.
>
> This property is read-only on iOS.

## Method descriptions

<div id="mobileprogresswheel.addconstraint">

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MobileProgressWheel.AddConstraint

**AddConstraint**(constraint As `iOSLayoutConstraint</api/ios/ioslayoutconstraint>`, name As `String</api/data_types/string>` = "")

> Adds a *constraint* to the control. The optional *name* parameter can be used to `remove a constraint<mobileuicontrol.removeconstraint>` that was added via code.
>
> This *constraint* is used by child controls that have been added to this control.
>
> <div class="important">
>
> <div class="title">
>
> Important
>
> </div>
>
> This is supported for iOS only.
>
> </div>

<div id="mobileprogresswheel.addcontrol">

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MobileProgressWheel.AddControl

**AddControl**(child As `MobileUIControl</api/user_interface/mobile/mobileuicontrol>`, isBeingAdded As `Boolean</api/data_types/boolean>` = `False</api/language/false>`)

> Adds a *child* control to the control. When the value of *isBeingAdded* is `True</api/language/true>`, the Opening event is triggered for the child control being added.
>
> <div class="important">
>
> <div class="title">
>
> Important
>
> </div>
>
> This is supported for iOS only.
>
> </div>

<div id="mobileprogresswheel.clearfocus">

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MobileProgressWheel.ClearFocus

**ClearFocus**

> Removes the focus from the control.
>
> ``` xojo
> TextField1.ClearFocus
> ```

<div id="mobileprogresswheel.constraint">

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MobileProgressWheel.Constraint

**Constraint**(name As `String</api/data_types/string>`) As `iOSLayoutConstraint</api/ios/ioslayoutconstraint>`

> Gets a reference to a named constraint so that you can modify its settings in code.
>
> <div class="important">
>
> <div class="title">
>
> Important
>
> </div>
>
> This is supported for iOS only.
>
> </div>
>
> Change an existing (and named) constraint of a control on the Screen:
>
> ``` xojo
> ' "TAWidth" is a width constraint for a TextField that has been given
> ' a name in the auto-layout Inspector properties.
> Var c As iOSLayoutConstraint = Self.Constraint("TAWidth")
> c.Offset = 200
> ```

<div id="mobileprogresswheel.controlat">

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MobileProgressWheel.ControlAt

**ControlAt**(index As `Integer</api/data_types/integer>`) As `MobileUIControl</api/user_interface/mobile/mobileuicontrol>`

> Gets the child control at the specified *index*.
>
> <div class="important">
>
> <div class="title">
>
> Important
>
> </div>
>
> This is supported for iOS only.
>
> </div>

<div id="mobileprogresswheel.controls">

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MobileProgressWheel.Controls

**Controls** As `Iterable</api/language/iterable>`

> Allows you to iterate through all the controls that have been added to this control.
>
> <div class="important">
>
> <div class="title">
>
> Important
>
> </div>
>
> This is supported for iOS only.
>
> </div>

<div id="mobileprogresswheel.handle">

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MobileProgressWheel.Handle

**Handle** As `Ptr</api/data_types/additional_types/ptr>`

> The handle to the underlying native OS control.

<div id="mobileprogresswheel.refresh">

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MobileProgressWheel.Refresh

**Refresh**

> Marks the control so that it will be redrawn during the next event loop.
>
> Call Refresh to force a Canvas to redraw itself:
>
> ``` xojo
> Canvas1.Refresh
> ```

<div id="mobileprogresswheel.removeconstraint">

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MobileProgressWheel.RemoveConstraint

**RemoveConstraint**(constraint As `iOSLayoutConstraint</api/ios/ioslayoutconstraint>`)

> Removes a *constraint* from the control.
>
> <div class="important">
>
> <div class="title">
>
> Important
>
> </div>
>
> This is supported for iOS only.
>
> </div>

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**RemoveConstraint**(name As `String</api/data_types/string>`)

> Removes the constraint with the *name* passed from the `Screen</api/user_interface/mobile/mobilescreen>`.
>
> <div class="important">
>
> <div class="title">
>
> Important
>
> </div>
>
> This is supported for iOS only.
>
> </div>

<div id="mobileprogresswheel.removecontrol">

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MobileProgressWheel.RemoveControl

**RemoveControl**(child As `MobileUIControl</api/user_interface/mobile/mobileuicontrol>`)

> Removes the control from the control.
>
> <div class="important">
>
> <div class="title">
>
> Important
>
> </div>
>
> This is supported for iOS only.
>
> </div>

<div id="mobileprogresswheel.setfocus">

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MobileProgressWheel.SetFocus

**SetFocus**

> Sets the focus to the control.
>
> ``` xojo
> TextField1.SetFocus
> ```

## Event descriptions

<div id="mobileprogresswheel.closing">

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MobileProgressWheel.Closing

**Closing**

> Called when the control's layout is closing.

<div id="mobileprogresswheel.opening">

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MobileProgressWheel.Opening

**Opening**

> Called when the control's layout is opening.
>
> This is where you typically put initialization code.
>
> This example in the Opening event of a label sets its text to "Hello":
>
> ``` xojo
> Me.Text = "Hello"
> ```

## Compatibility

|                       |        |
|-----------------------|--------|
| **Project Types**     | Mobile |
| **Operating Systems** | All    |

<div class="seealso">

`MobileUIControl</api/user_interface/mobile/mobileuicontrol>` parent class; `MobileProgressBar</api/user_interface/mobile/mobileprogressbar>`

</div>