Fragment activity catch onKeyDown and use in fragment

Question

I have Fragment activity with pager:

List<Fragment> fragments = new Vector<Fragment>();     fragments.add(Fragment.instantiate(this, PastEventListFragment.class.getName(),bundle));     fragments.add(Fragment.instantiate(this, EventListFragment.class.getName(),bundle));      this.mPagerAdapter  = new EventPagerAdapter(super.getSupportFragmentManager(), fragments);     //     ViewPager pager = (ViewPager)super.findViewById(R.id.viewpager1);      pager.setAdapter(this.mPagerAdapter);     pager.setCurrentItem(1); 

I catch onKeyDown event :

@Override public boolean onKeyDown(int keyCode, KeyEvent event) {     if (keyCode == KeyEvent.KEYCODE_MENU) {      }     return super.onKeyDown(keyCode, event); } 

The Question is: How to use event in all fragments i have instantiated in this activity . Thanks

Answer 1

What you can do is to define a custom method in your fragment class(s). For example:

public void myOnKeyDown(int key_code){    //do whatever you want here } 

and call this method whenever a key-down event is raised in your Activity class. For example:

@Override public boolean onKeyDown(int keyCode, KeyEvent event) {     if (keyCode == KeyEvent.KEYCODE_MENU) {         ((PastEventListFragment)fragments.get(0)).myOnKeyDown(keyCode);         ((EventListFragment)fragments.get(1)).myOnKeyDown(keyCode);          //and so on...     }     return super.onKeyDown(keyCode, event); }