8d3e159b3b
There is a problem of AccountManager that onAccountsUpdated() is called back even after the OnAccountsUpdatedListener is unregistered. It may cause application crash. For example, when rotating a tablet 180 degree with Settings apk running, com.android.settings.Settings is re-launched 2 times successively. (Destroy->Create->Destroy->Create) It repeats adding&removing OnAccountUpdatedListener. When dialog was being opened in the following cases, NullPointerException at BackStackRecord.getBreadCrumbTitle() was happened on 10 inch tablet which has 2 panes on Settings. * Settings > Language&input > Language * Settings > Language & input > Text-to-speech output > Speech rate * Settings > Wi-Fi > Menu > Advanced > Keep Wi-Fi on during sleep * Settings > Wi-Fi > Menu > Wi-Fi Direct > Rename device This fix prevents the undesirable callback. Change-Id: I081f69c90539cca821cf686b4587495135f375e4