@Override
public void setCurrentItem(int item, boolean smoothScroll) {
super.setCurrentItem(item, smoothScroll);
if (mDecor != null) {
mDecor.onPageSelected(item);
}
}
private void updateUiFromPanelConfigs(List<PanelConfig> panelConfigs) {
// We only care about the adapter if HomePager is currently
// loaded, which means it's visible in the activity.
if (!mLoaded) {
return;
}
if (mDecor != null) {
mDecor.removeAllPagerViews();
}
final HomeAdapter adapter = (HomeAdapter) getAdapter();
// Destroy any existing panels currently loaded
// in the pager.
setAdapter(null);
// Only keep enabled panels.
final List<PanelConfig> enabledPanels = new ArrayList<PanelConfig>();
for (PanelConfig panelConfig : panelConfigs) {
if (!panelConfig.isDisabled()) {
enabledPanels.add(panelConfig);
}
}
// Update the adapter with the new panel configs
adapter.update(enabledPanels);
// Hide the tab strip if the new configuration contains no panels.
final int count = enabledPanels.size();
mTabStrip.setVisibility(count > 0 ? View.VISIBLE : View.INVISIBLE);
// Re-install the adapter with the final state
// in the pager.
setAdapter(adapter);
// Use the default panel as defined in the HomePager's configuration
// if the initial panel wasn't explicitly set by the show() caller.
if (mInitialPanelId != null) {
// XXX: Handle the case where the desired panel isn't currently in the adapter (bug 949178)
setCurrentItem(adapter.getItemPosition(mInitialPanelId), false);
mInitialPanelId = null;
} else {
for (int i = 0; i < count; i++) {
final PanelConfig panelConfig = enabledPanels.get(i);
if (panelConfig.isDefault()) {
setCurrentItem(i, false);
break;
}
}
}
}
@Override
public void addView(View child, int index, ViewGroup.LayoutParams params) {
if (child instanceof Decor) {
((ViewPager.LayoutParams) params).isDecor = true;
mDecor = (Decor) child;
mTabStrip = child;
mDecor.setOnTitleClickListener(
new OnTitleClickListener() {
@Override
public void onTitleClicked(int index) {
setCurrentItem(index, true);
}
});
setOnPageChangeListener(
new ViewPager.OnPageChangeListener() {
@Override
public void onPageSelected(int position) {
mDecor.onPageSelected(position);
}
@Override
public void onPageScrolled(
int position, float positionOffset, int positionOffsetPixels) {
mDecor.onPageScrolled(position, positionOffset, positionOffsetPixels);
}
@Override
public void onPageScrollStateChanged(int state) {}
});
} else if (child instanceof HomePagerTabStrip) {
mTabStrip = child;
}
super.addView(child, index, params);
}