Custom recycleview delete & move animation

First RecycleView There is a default animation 、 And the corresponding execution time
But in project development , Encountered a need to delete item Adjust the dynamic effect of
Ideas 1. Can be in holder in （ For example, click to delete ） Directly for the present view Set custom animation and execute
Ideas 2. rewrite recycleView Default animation SimpleItemAnimator

Thinking in simple scenes 1 It can achieve the expected effect , But I have another problem in the project ,ui The given animation needs to be deleted at the same time The list below should be moved up at the same time .

however recycleView The default is to delete the animation and then execute the mobile animation Thinking in this case 1 Can't meet expectations Can only override SimpleItemAnimator 了

The good news is recycleView It has encapsulated a default DefaultItemAnimator Abstract classes in this class SimpleItemAnimator All methods are implemented by rewriting We just have to inherit DefaultItemAnimator Rewrite the method that needs to be adjusted
The bad news is There is no internal method that can directly call to start moving animation or delete animation There are plenty of them runPendingAnimations() The method internally sets the actual execution of each animation We rewrite this method Almost equivalent to the need to rewrite the entire class
Source code is as follows

  @Override
    public void runPendingAnimations() {
        boolean removalsPending = !mPendingRemovals.isEmpty();
        boolean movesPending = !mPendingMoves.isEmpty();
        boolean changesPending = !mPendingChanges.isEmpty();
        boolean additionsPending = !mPendingAdditions.isEmpty();
        //  Determine whether there is animation to be executed 
        if (!removal