I2P_Developers/i2p.android.base
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Store AddressbookFragment references, use to propagate visibility hints

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str4d
2015-03-31 12:16:52 +00:00
parent e33be52b97
commit 3bcbd8c876
1 changed files with 80 additions and 10 deletions
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90
app/src/main/java/net/i2p/android/router/addressbook/AddressbookContainer.java
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@ -31,8 +31,16 @@ public class AddressbookContainer extends Fragment
*/
private boolean mTwoPane;
ViewPager mViewPager;
FragmentPagerAdapter mFragPagerAdapter;
private static final String FRAGMENT_ROUTER = "router_fragment";
private static final String FRAGMENT_PRIVATE = "private_fragment";
private static final int FRAGMENT_ID_ROUTER = 0;
private static final int FRAGMENT_ID_PRIVATE = 1;
AddressbookFragment mRouterFrag;
AddressbookFragment mPrivateFrag;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
@ -49,24 +57,36 @@ public class AddressbookContainer extends Fragment
// res/values-sw600dp). If this view is present, then the
// activity should be in two-pane mode.
mTwoPane = true;
}
if (savedInstanceState != null) {
mRouterFrag = (AddressbookFragment) getChildFragmentManager().getFragment(
savedInstanceState, FRAGMENT_ROUTER);
mPrivateFrag = (AddressbookFragment) getChildFragmentManager().getFragment(
savedInstanceState, FRAGMENT_PRIVATE);
} else if (mTwoPane) {
mRouterFrag = AddressbookFragment.newInstance(AddressbookFragment.ROUTER_BOOK);
mPrivateFrag = AddressbookFragment.newInstance(AddressbookFragment.PRIVATE_BOOK);
// Set up the two pages
FragmentTransaction ft = getChildFragmentManager().beginTransaction();
if (getChildFragmentManager().findFragmentById(R.id.left_fragment) == null)
ft.add(R.id.left_fragment, AddressbookFragment.newInstance(AddressbookFragment.ROUTER_BOOK));
ft.add(R.id.left_fragment, mRouterFrag);
if (getChildFragmentManager().findFragmentById(R.id.right_fragment) == null)
ft.add(R.id.right_fragment, AddressbookFragment.newInstance(AddressbookFragment.PRIVATE_BOOK));
ft.add(R.id.right_fragment, mPrivateFrag);
ft.commit();
} else {
ViewPager viewPager = (ViewPager) v.findViewById(R.id.pager);
}
if (!mTwoPane) {
mViewPager = (ViewPager) v.findViewById(R.id.pager);
mFragPagerAdapter = new AddressbookPagerAdapter(getActivity(), getChildFragmentManager());
viewPager.setAdapter(mFragPagerAdapter);
mViewPager.setAdapter(mFragPagerAdapter);
}
return v;
}
public static class AddressbookPagerAdapter extends FragmentPagerAdapter {
public class AddressbookPagerAdapter extends FragmentPagerAdapter {
private static final int NUM_ITEMS = 2;
private Context mContext;
@ -84,10 +104,10 @@ public class AddressbookContainer extends Fragment
@Override
public Fragment getItem(int position) {
switch (position) {
case 0:
return AddressbookFragment.newInstance(AddressbookFragment.ROUTER_BOOK);
case 1:
return AddressbookFragment.newInstance(AddressbookFragment.PRIVATE_BOOK);
case FRAGMENT_ID_ROUTER:
return (mRouterFrag = AddressbookFragment.newInstance(AddressbookFragment.ROUTER_BOOK));
case FRAGMENT_ID_PRIVATE:
return (mPrivateFrag = AddressbookFragment.newInstance(AddressbookFragment.PRIVATE_BOOK));
default:
return null;
}
@ -116,6 +136,56 @@ public class AddressbookContainer extends Fragment
searchView.setOnQueryTextListener(this);
}
@Override
public void setMenuVisibility(boolean menuVisible) {
super.setMenuVisibility(menuVisible);
setChildMenuVisibility(mRouterFrag, FRAGMENT_ID_ROUTER, menuVisible);
setChildMenuVisibility(mPrivateFrag, FRAGMENT_ID_PRIVATE, menuVisible);
}
private void setChildMenuVisibility(Fragment fragment, int itemNumber, boolean menuVisible) {
if (fragment != null) {
if (mViewPager != null)
menuVisible = menuVisible && mViewPager.getCurrentItem() == itemNumber;
fragment.setMenuVisibility(menuVisible);
}
}
@Override
public void setUserVisibleHint(boolean isVisibleToUser) {
super.setUserVisibleHint(isVisibleToUser);
setChildUserVisibleHint(mRouterFrag, FRAGMENT_ID_ROUTER, isVisibleToUser);
setChildUserVisibleHint(mPrivateFrag, FRAGMENT_ID_PRIVATE, isVisibleToUser);
}
private void setChildUserVisibleHint(Fragment fragment, int itemNumber, boolean isVisibleToUser) {
if (fragment != null) {
if (mViewPager != null)
isVisibleToUser = isVisibleToUser && mViewPager.getCurrentItem() == itemNumber;
fragment.setUserVisibleHint(isVisibleToUser);
}
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
// Since the pager fragments don't have known tags or IDs, the only way to persist the
// reference is to use putFragment/getFragment. Remember, we're not persisting the exact
// Fragment instance. This mechanism simply gives us a way to persist access to the
// 'current' fragment instance for the given fragment (which changes across orientation
// changes).
//
// The outcome of all this is that the "Refresh" menu button refreshes the stream across
// orientation changes.
if (mRouterFrag != null)
getChildFragmentManager().putFragment(outState, FRAGMENT_ROUTER, mRouterFrag);
if (mPrivateFrag != null)
getChildFragmentManager().putFragment(outState, FRAGMENT_PRIVATE, mPrivateFrag);
}
// AddressbookFragment.OnAddressSelectedListener
public void onAddressSelected(CharSequence host) {