Lottie

Lottie Animation widget

The Lottie Render Widget allows you to effortlessly render Lottie animation files, bringing life and motion to your application with smooth and captivating visual effects.

Test in Kitchen Sink (opens in a new tab)

NOTE

NOTE: onTap property works only for native apps (iOS and Android) and web apps. onTap will not work when the web app is compiled with the HTML renderer (opens in a new tab) option (i.e. --web-renderer html). Ensemble Studio is compiled with HTML renderer option so the onTap will not work on the studio. However, it should work fine for Ensemble Go (iOS) and Ensemble Preview (Android).

Properties

PropertyTypeDescription
sourcestringURL or asset name of the Lottie json file
stylesobjectSee properties
onForwardactionCallback which is fired when the animation starts playing in the forward direction
onReverseactionCallback which is fired when the animation starts playing in the reverse direction
onCompleteactionCallback which is fired when the animation is completed
onTapactionRun a block of code or execute a given action when there is a tap event on lottie widget
onStopactionCallback which is fired when the animation is stopped. This is fired only when animation is stopped or aborted in between.
autoPlaybooleanWhether to automatically start the animation in the forward direction (default true)
repeatbooleanWhether we should repeat the animation (default true)
onTapHapticenumThe type of haptic to perform when lottie is pressed. It should be one of heavyImpact, mediumImpact, lightImpact, selectionClick, and vibrate

styles

PropertyTypeDescription
expandedbooleanIf the parent is a Row or Column, this flag will stretch this widget in the appropriate direction. (e.g stretch horizontally for parent of type Row)
fitstringHow to fit the Lottie animation within our width/height or our parent (if dimension is not specified) . see options
borderRadiusstring or integerThe border radius of the widget.This can be specified using CSS-like notation with 1 to 4 integers. Minimum value: 0.
borderColorinteger or stringSets the border color, starting with '0xFF' for full opacity. transparent black blue white red grey teal amber pink purple yellow green brown cyan indigo lime orange
borderWidthintegerThickness of the border. Minimum value should be 0.
shadowColorinteger or stringSets the box shadow color starting with '0xFF' for full opacity. transparent black blue white red grey teal amber pink purple yellow green brown cyan indigo lime orange
shadowOffsetarrayThe values in array define the horizontal and vertical offset of the shadow. Example: if the shadowOffset is set to [2, 4], the shadow will be offset by 2 pixels horizontally and 4 pixels vertically from its original position.
shadowRadiusstring or integerThe border radius of the widget.This can be specified using CSS-like notation with 1 to 4 integers. Minimum value: 0.
shadowStylestringThe blur style to apply on the shadow normal, solid, outer, inner
stackPositionTopintegerThe distance of the child's top edge from the top of the stack. This is applicable only for Stack's children.
stackPositionBottomintegerThe distance that the child's bottom edge from the bottom of the stack. This is applicable only for Stack's children.
stackPositionLeftintegerThe distance that the child's left edge from the left of the stack. This is applicable only for Stack's children.
stackPositionRightintegerThe distance that the child's right edge from the right of the stack. This is applicable only for Stack's children.
captureWebPointerbooleanApplicable for Web only. When overlaying widgets on top of certain HTML container (e.g. Maps), the mouse click is captured by the HTML container, causing issue interacting with the widget. Use this to capture and maintain the mouse pointer on your widget.
marginstring or integerMargin with CSS-style notation
paddingstring or integerPadding with CSS-style value
widthintegerThe width property determines the horizontal size of an element, allowing control over its width dimension within the layout.
heightintegerThe height property determines the vertical size of an element, allowing control over its height dimension within the layout.
backgroundImageobjectBackground image of the box. see properties
backgroundGradientobjectBackground gradient of the box see properties
backgroundColorinteger or stringBackground color of the box. which can be represented in different formats. It can be specified as a number, a predefined color name, or a hexadecimal value starting with '0x'. transparent black blue white red grey teal amber pink purple yellow green brown cyan indigo lime orange
alignmentstringThe alignment of the widget relative to its parent. topLeft, topCenter, topRight, centerLeft, center, centerRight, bottomLeft, bottomCenter, bottomRight
visibilityTransitionDurationnumberSpecify the duration in seconds when a widget animates between visible and not visible state. Note that setting this value will cause the widget to still occupy the UI space even when it is not visible.
elevationintegerThe z-coordinate at which to place this material relative to its parent. A non-zero value will show a shadow, with its size relative to the elevation value. Minimum value: 0, Maximum value: 24
elevationShadowColorinteger or stringThe shadow color for the elevation, which can be represented in different formats. It can be specified as a number, a predefined color name, or a hexadecimal value starting with '0x'. transparent black blue white red grey teal amber pink purple yellow green brown cyan indigo lime orange
elevationBorderRadiusstring or integerThe border radius of the widget.This can be specified using CSS-like notation with 1 to 4 integers. Minimum value: 0.
visiblebooleanToggle a widget visibility on/off. Note that an invisible widget will not occupy UI space, unless the visibilityTransitionDuration is specified.

styles.backgroundGradient

PropertyTypeDescription
colorsarrayThe list of colors used for the gradient. Colors can be represented in different formats. It can be specified as a number, a predefined color name, or a hexadecimal value starting with '0x'.
startstringThe starting position of the gradient
endstringThe ending position of the gradient

styles.backgroundImage

PropertyTypeDescription
sourcestringThe Image URL to fill the background
fitstringHow to fit the image within our width/height or our parent (if dimension is not specified) . see options
alignmentstringAlignment of the background image

Fit options for styles.backgroundImage

OptionDescription
fillStretch our image to fill the dimension, and distorting the aspect ratio if needed
containScale the image such that the entire image is contained within our dimension
coverScale the image to fill our dimension, clipping the image as needed
fitWidthScale the image to fit the width, and clipping the height if needed
fitHeightScale the image to fit the height, and clipping the width if needed
noneCenter-Align the original image size, clipping the content if needed
scaleDownCenter-Align the image and only scale down to fit. Image will not be scaled up to bigger dimension.