Improve up button behavior

- Closes #614
This commit is contained in:
Mauricio Colli 2018-02-03 09:03:55 -02:00
parent 28618e822e
commit 989ce126f1
2 changed files with 41 additions and 7 deletions

View File

@ -204,8 +204,36 @@ public class MainActivity extends AppCompatActivity implements HistoryListener {
} else super.onBackPressed();
}
/**
* Implement the following diagram behavior for the up button:
* <pre>
* +---------------+
* | Main Screen +----+
* +-------+-------+ |
* | |
* Up | Search Button
* | |
* +----+-----+ |
* +------------+ Search |-----+
* | +----+-----+
* | Open |
* | something Up
* | |
* | +------------+-------------+
* | | |
* | | Video <-> Channel |
* +---| Channel <-> Playlist |
* | Video <-> .... |
* | |
* +--------------------------+
* </pre>
*/
private void onHomeButtonPressed() {
NavigationHelper.gotoMainFragment(getSupportFragmentManager());
// If search fragment wasn't found in the backstack...
if (!NavigationHelper.tryGotoSearchFragment(getSupportFragmentManager())) {
// ...go to the main fragment
NavigationHelper.gotoMainFragment(getSupportFragmentManager());
}
}
/*//////////////////////////////////////////////////////////////////////////
@ -239,11 +267,6 @@ public class MainActivity extends AppCompatActivity implements HistoryListener {
return true;
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
return super.onPrepareOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
if (DEBUG) Log.d(TAG, "onOptionsItemSelected() called with: item = [" + item + "]");

View File

@ -51,6 +51,7 @@ import java.util.ArrayList;
@SuppressWarnings({"unused", "WeakerAccess"})
public class NavigationHelper {
public static final String MAIN_FRAGMENT_TAG = "main_fragment_tag";
public static final String SEARCH_FRAGMENT_TAG = "search_fragment_tag";
/*//////////////////////////////////////////////////////////////////////////
// Players
@ -244,11 +245,21 @@ public class NavigationHelper {
.commit();
}
public static boolean tryGotoSearchFragment(FragmentManager fragmentManager) {
if (MainActivity.DEBUG) {
for (int i = 0; i < fragmentManager.getBackStackEntryCount(); i++) {
Log.d("NavigationHelper", "tryGoToSearchFragment() [" + i + "] = [" + fragmentManager.getBackStackEntryAt(i) + "]");
}
}
return fragmentManager.popBackStackImmediate(SEARCH_FRAGMENT_TAG, 0);
}
public static void openSearchFragment(FragmentManager fragmentManager, int serviceId, String query) {
fragmentManager.beginTransaction()
.setCustomAnimations(R.animator.custom_fade_in, R.animator.custom_fade_out, R.animator.custom_fade_in, R.animator.custom_fade_out)
.replace(R.id.fragment_holder, SearchFragment.getInstance(serviceId, query))
.addToBackStack(null)
.addToBackStack(SEARCH_FRAGMENT_TAG)
.commit();
}