removeScopedWillPopCallback method

void removeScopedWillPopCallback(WillPopCallback callback)

Remove one of the callbacks run by willPop.

See also:

• Form, which provides an onWillPop callback that uses this mechanism.
• addScopedWillPopCallback, which adds callback to the list checked by willPop.

Implementation

void removeScopedWillPopCallback(WillPopCallback callback) {
  assert(_scopeKey.currentState != null,
      'Tried to remove a willPop callback from a route that is not currently in the tree.');
  _willPopCallbacks.remove(callback);
}