Android: Hide method does not work if navigation performed by Service.

[nstudio]

Android: Hide method does not work if navigation performed by Service.

[Codex-]

I found the cause, it appears to be essentially a race condition.

The popUp is created, then hidden is called before the popUp is added to the collection of instances (thus there is nothing to hide). iOS does not use a collection of instances, and appears to have the popUp available immediately when executed.

If you add a setTimeout to the hide method if there are 0 items in the collection, then after 500 the hide works as expected (in loading-indicator.android.ts):

  hide(retryMs: number = 500) {
    if (
      !this._loadersInstances ||
      (this._loadersInstances && this._loadersInstances.length === 0)
    ) {
      setTimeout(() => this._hideInstances(), retryMs);
      return;
    }
    this._hideInstances();
  }

  private _hideInstances() {
    try {
      for (let i = 0; i < this._loadersInstances.length; i++) {
        const loader = this._loadersInstances[i];
        if (loader) {
          if (this._isShowing(loader)) {
            loader.dismiss();
            this._loadersInstances.splice(i, 1);
          }
        }
      }

      this._popOver = null;
      this._currentProgressColor = null;
    } catch (e) {
      console.log(e);
    }
  }

Although i'm not really sure if this is ideal either, essentially we're dealing with a race condition against the native component rendering then execution of that finishing and being added to the collection and hiding the component immediately (i.e. the condition to keep loading occurs quickly).

I have another idea i'll pursue, expect a PR soon :)