private void addFragment(Fragment f, int index) {
if (f == null) return;
Log.e("ASDF", f + ": " + index);
clearFragments(index + 1);
int type = 0;
boolean focused = false;
PaneSizer paneSizer = mPaneSizer;
if (paneSizer != null) {
type = paneSizer.getType(f);
focused = paneSizer.getFocused(f);
}
PaneView p = panesLayout.getPane(index);
if (p != null && p.type == type) {
} else {
clearFragments(index);
p = panesLayout.addPane(type, focused);
if (p.index != index) throw new IllegalStateException("Added pane has wrong index");
}
panesLayout.setIndex(index);
FragmentManager fm = getSupportFragmentManager();
FragmentTransaction ft = fm.beginTransaction();
ft.replace(p.getInnerId(), f);
ft.commit();
fragmentStack.add(index, f);
updateFragment(f);
}
@Override
public void onCreate(Bundle savedInstanceState) {
setContentView(R.layout.panes_layout);
panesLayout = (PanesLayout) findViewById(R.id.panes);
panesLayout.setOnIndexChangedListener(this);
if (savedInstanceState != null) {
int[] panesType = savedInstanceState.getIntArray("PanesLayout_panesType");
boolean[] panesFocused = savedInstanceState.getBooleanArray("PanesLayout_panesFocused");
int currentIndex = savedInstanceState.getInt("PanesLayout_currentIndex");
for (int i = 0; i < panesType.length; i++) {
panesLayout.addPane(panesType[i], panesFocused[i]);
}
panesLayout.setIndex(currentIndex);
}
if (savedInstanceState != null) {
FragmentManager fm = getSupportFragmentManager();
for (int index = 0; index < panesLayout.getNumPanes(); index++) {
int id = panesLayout.getPane(index).getInnerId();
Fragment f = fm.findFragmentById(id);
fragmentStack.add(f);
updateFragment(f);
}
}
}
/** Save the state of the panes */
@Override
public void onSaveInstanceState(Bundle savedInstanceState) {
int[] panesType = new int[panesLayout.getNumPanes()];
boolean[] panesFocused = new boolean[panesLayout.getNumPanes()];
for (int i = 0; i < panesLayout.getNumPanes(); i++) {
PaneView p = panesLayout.getPane(i);
panesType[i] = p.type;
panesFocused[i] = p.focused;
}
savedInstanceState.putIntArray("PanesLayout_panesType", panesType);
savedInstanceState.putBooleanArray("PanesLayout_panesFocused", panesFocused);
savedInstanceState.putInt("PanesLayout_currentIndex", panesLayout.getCurrentIndex());
}
/** On action-bar home button selected, slide to the menu */
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
panesLayout.setIndex(0);
return true;
}
return false;
}
@Override
public void addFragment(Fragment oldFragment, Fragment newFragment) {
if (newFragment != null) {
int index = 1; // by default, add after menu
int oldIndex = getIndex(oldFragment);
if (oldIndex != -1) index = oldIndex + 1;
addFragment(newFragment, index);
updateFragment(newFragment);
} else {
panesLayout.setIndex(1);
}
}
private void clearFragments(int index) {
while (index < fragmentStack.size()) fragmentStack.remove(index);
ArrayList<PaneView> panes = panesLayout.removePanes(index);
FragmentManager fm = getSupportFragmentManager();
FragmentTransaction ft = fm.beginTransaction();
for (PaneView pane : panes) {
int id = pane.getInnerId();
Fragment f = fm.findFragmentById(id);
if (f != null) ft.remove(f);
}
ft.commit();
}
/** Handle back press */
@Override
public boolean onBackPressed() {
if (panesLayout.onBackPressed()) return true;
return false;
}
@Override
public void showMenu() {
panesLayout.setIndex(0);
}
@Override
public Fragment getTopFragment() {
return getFragment(panesLayout.getNumPanes() - 1);
}