public void onDestroy() {
if (mTopSitesAdapter != null) {
Cursor cursor = mTopSitesAdapter.getCursor();
if (cursor != null && !cursor.isClosed()) cursor.close();
}
if (mTabsContentObserver != null) {
mActivity.getContentResolver().unregisterContentObserver(mTabsContentObserver);
mTabsContentObserver = null;
}
}
public void onDestroy() {
if (mAccountListener != null) {
mAccountManager.removeOnAccountsUpdatedListener(mAccountListener);
mAccountListener = null;
}
if (mTopSitesAdapter != null) {
Cursor cursor = mTopSitesAdapter.getCursor();
if (cursor != null && !cursor.isClosed()) cursor.close();
}
}
private List<String> getTopSitesUrls() {
List<String> urls = new ArrayList<String>();
Cursor c = mTopSitesAdapter.getCursor();
if (c == null || !c.moveToFirst()) return urls;
do {
final String url = c.getString(c.getColumnIndexOrThrow(URLColumns.URL));
urls.add(url);
} while (c.moveToNext());
return urls;
}
private void loadTopSites() {
// The SyncAccounts.syncAccountsExist method should not be called on
// UI thread as it touches disk to access a sqlite DB.
final boolean syncIsSetup = SyncAccounts.syncAccountsExist(mActivity);
final ContentResolver resolver = mActivity.getContentResolver();
Cursor old = null;
if (mTopSitesAdapter != null) {
old = mTopSitesAdapter.getCursor();
}
// Swap in the new cursor.
final Cursor oldCursor = old;
final Cursor newCursor = BrowserDB.getTopSites(resolver, mNumberOfTopSites);
post(
new Runnable() {
public void run() {
if (mTopSitesAdapter == null) {
mTopSitesAdapter =
new TopSitesCursorAdapter(
mActivity,
R.layout.abouthome_topsite_item,
newCursor,
new String[] {URLColumns.TITLE},
new int[] {R.id.title});
mTopSitesGrid.setAdapter(mTopSitesAdapter);
} else {
mTopSitesAdapter.changeCursor(newCursor);
}
if (mTopSitesAdapter.getCount() > 0) loadTopSitesThumbnails(resolver);
updateLayout(syncIsSetup);
// Free the old Cursor in the right thread now.
if (oldCursor != null && !oldCursor.isClosed()) oldCursor.close();
// Even if AboutHome isn't necessarily entirely loaded if we
// get here, for phones this is the part the user initially sees,
// so it's the one we will care about for now.
if (mLoadCompleteCallback != null) mLoadCompleteCallback.callback();
}
});
}
