How can I set the actionItem's animation delay time to achieve this effect?

Step 1: Are you in the right place?

• I have verified there are no duplicate active or recent bugs, questions, or requests
• I have verified that I am using the latest version of the library.

Step 2: Describe your environment

• Library version: 3.1.1
• Android version: Android O
• Support library version: API14-29
• Device brand: ?
• Device model: ?

Step 3: Describe the problem:

Steps to reproduce:

1. add SpeedDialView in layout
2. add addActionItem
3. invoke open() and close()

Observed Results:

• The animation of each actionItem looks started at the same time, that makes me feel quiet annoying.

Expected Results:

• I wish there is a function or other way to set the delay time of each actionItem's animation.
• BTW, I thingk if the default animation is not translation but scale will makes the widget more textured.

Expected Effect:

Start at SpeedDialView and trace addActionItem together with the open() and close() animation flow. Compare the current simultaneous animation with the requested per-item delay and optional scale effect, then define how the behavior should be exposed and verified on Android O/API14-29.