Angular Animation Sequences: A Quick Overview
Primary entry point exports
Functions - sequence
The "sequence" function is used to define a list of animation steps that will be executed sequentially, one after the other. It takes an array of animation step objects as its main parameter and an optional options object.
Here's a breakdown of the key components:
Function Signature:
- steps: An array of animation step objects. Each step can be created using the style() or animate() calls.
- options: An optional object containing parameters such as delay and developer-defined options. The default value is "null".
Example:
In this example, a sequence is created with two steps. The first step sets the initial opacity to 0 using the style() call, and the second step animates the opacity to 1 over a duration of 1 second using the animate() call.
Options:
The "options" parameter allows you to provide an options object that can contain properties like delay and other developer-defined parameters. These options provide styling defaults and can be overridden when the sequence is invoked.
Return Type:
- The function returns an object that encapsulates the sequence data.
Usage Notes:
- When you pass an array of steps to a transition() call, the steps run sequentially by default. This is in contrast to the group() call, which runs animation steps in parallel.
- If a sequence is used within a group() or a transition() call, the execution continues to the next instruction only after each of the inner animation steps has completed.
In summary, the "sequence" function is a way to organize a series of animation steps in Angular, ensuring that they are executed one after the other in a specified order. It provides a mechanism for creating more complex animations by defining a sequence of steps to achieve the desired visual effect.
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