How to handle onContextItemSelected in a multi fragment activity?

Question

I\'m currently trying to adapt my application to use the \"Compatibility Libraries for Android v4\" to provide the benefits of the usage of fragments even to Android 1.6 use

Answer 1

IMHO we may just check if target view is child of fragment listview. It is very simple and work for me well. I just added to all my fragments:if (getListView.getPositionForView(info.targetView) == -1) return false when migrate from older API

This is example from one of my parent fragments. This is Scala, but I hope you got an idea.

@Loggable
override def onContextItemSelected(menuItem: MenuItem): Boolean = {
  for {
    filterBlock <- TabContent.filterBlock
    optionBlock <- TabContent.optionBlock
    environmentBlock <- TabContent.environmentBlock
    componentBlock <- TabContent.componentBlock
  } yield menuItem.getMenuInfo match {
  case info: AdapterContextMenuInfo =>
    if (getListView.getPositionForView(info.targetView) == -1)
      return false
    TabContent.adapter.getItem(info.position) match {
      case item: FilterBlock.Item =>
        filterBlock.onContextItemSelected(menuItem, item)
      case item: OptionBlock.Item =>
        optionBlock.onContextItemSelected(menuItem, item)
      case item: EnvironmentBlock.Item =>
        environmentBlock.onContextItemSelected(menuItem, item)
      case item: ComponentBlock.Item =>
        componentBlock.onContextItemSelected(menuItem, item)
      case item =>
        log.debug("skip unknown context menu item " + info.targetView)
        false
    }
  case info =>
    log.fatal("unsupported menu info " + info)
    false
  }
} getOrElse false

P.S. If you trace calls of onContextItemSelected(...) you may notify that super.onContextItemSelected(item) return always false. Valid onContextItemSelected invoked AFTER, not WITHIN. So super.onContextItemSelected(item) is useless and I replaced it with false.