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Toast Object

The toast object contains a collection of methods and properties. You can configure various properties of the toast and invoke the show method to display the toast in your app.

Methods

The Toast object provides the show method.

show

When you invoke the show method, the toast message is displayed on the screen.

Syntax

show();

Example

voltmx.ui.Toast({
    "text": "Hello World.",
    "duration": constants.TOAST_LENGTH_SHORT
});
toast.show();

Parameters

None

Return Values

None

Platform Availability

  • Android

Properties

The Toast object provides the following properties.

alignConfig

Using the alignConfig property, you can configure the alignment of the toast message on the screen.

Syntax

alignConfig

Example

var offset = { 
    gravity: constants.TOAST_POS_MIDDLE_CENTER, 
    x: "100",
    y: "200"
};
myToast.alignConfig = offset;

Type

The alignConfig proeprty is a JavaScript object which contains key-value pairs to set the alignment of the toast. The following keys are supported.

Constant Description
gravity Specifies the anchor point for the toast. The value for this key must be a member of the Toast Position Constants. The default value for this key is constants.TOAST_POS_MIDDLE_CENTER.
x Sets the x position of the toast relative to the middle center of the device's screen. The value of this key is only used when the gravity key is set to constants.TOAST_POS_MIDDLE_CENTER.
y Sets the y position of the toast relative to the middle center of the device's screen. The value of this key is only used when the gravity key is set to constants.TOAST_POS_MIDDLE_CENTER.

Read/Write

Read + Write

Platform Availability

  • Android

Note: In apps that run on Android 11 (or later) devices and use TargetSDK API level 30 (and later), the alignConfig property does not work for Toast messages that are posted from the background.

data

Using the data property, you can provide the information that you want to display in the toast.

Syntax

data

Example

myToast.template = Tempflex;
myToast.widgetDataMap = { //specifying the data item IDs and the widgets in a template
    "Tempflex": "TempFlex", 
    "img1": "img1",
    "lbl1": "Lbl1"
};
myToast.data = { //specifying the data item IDs and the data values directly
    "img1": "header.png",
    "lbl1": "Label Custom Toast"
};

Type

A JavaScript object that contains key-value pairs consisting of the IDs of each widget and the values for the individual widgets.

Read/Write

Read + Write

Remarks

There are two ways in which you can initialize the object in the data property. The first way is to specify the widget IDs and the data values directly. The second is to specify the widget IDs including the widgets in a template. These are demonstrated in the Example provided below.

Platform Availability

  • Android

isVisible

Using the isVisible property, you can configure the visibility of a toast.

Syntax

isVisible

Example

myToast.isVisible = true;

Type

Boolean

Read/Write

Read + Write

Remarks

If you set the value of this property to true, the toast is displayed after the invocation of the show method.

If you set the value of this property to false, the toast is not displayed even after the invocation of the show method.

Platform Availability

  • Android

template

Using the template property, you can set a FlexContainer widget as the template for a toast.

Syntax

template

Example

myToast.template = Tempflex;
myToast.widgetDataMap = {
    "Tempflex": "Tempflex",
    "img1": "img1",
    "lbl1": "lbl1"
};
myToast.data = {
    "img1": "header.png",
    "lbl1": "Label Custom Toast"
};

Type

A JavaScript object.

Read/Write

Read+Write

Remarks

If you do not set a template, it uses the default appearance for the toast. Only the following widgets can be used in the template of the toast.

  • Label widget
  • Link widget
  • RichText widget
  • Button widget
  • Image widget

Note: An Image widget with a dynamic URL is not supported. Widget animations are also not supported.

Platform Availability

  • Android

Note: In apps that run on Android 11 (or later) devices and use TargetSDK API level 30 (and later), Toast messages that use custom templates and are posted from the background are blocked by the OS.

widgetDataMap

Using the widgetDataMap property, you can map information between the widget IDs and keys in the data.

Syntax

widgetDataMap

Example

myToast.template = Tempflex;
myToast.widgetDataMap = {
    "Tempflex": "Tempflex",
    "img1": "img1",
    "lbl1": "lbl1"
};
myToast.data = {
    "img1": "header.png",
    "lbl1": "Label Custom Toast"
};

Type

A JavaScript object that contains key-value pairs consisting of the IDs of each data-item and keys.

Read/Write

Read + Write

Remarks

Using this property you can create a mapping between widget IDs and specific items in your app's data. Ensure that the widgetDataMap property accommodates all widget IDs, including widgets referred to in dynamic templates.

After your app provides the data mapping, it updates the data in the toast whenever the data changes.

Platform Availability

  • Android