SyncAdapter status listener

BaseActivity.java

private SyncStatusObserver mSyncStatusObserver = new SyncStatusObserver() {
        @Override
        public void onStatusChanged(int which) {
            runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    String accountName = AccountUtils.getActiveAccountName(BaseActivity.this);
                    if (TextUtils.isEmpty(accountName)) {
                        onRefreshingStateChanged(false);
                        mManualSyncRequest = false;
                        return;
                    }

                    Account account = new Account(accountName, GoogleAuthUtil.GOOGLE_ACCOUNT_TYPE);
                    boolean syncActive = ContentResolver.isSyncActive(
                            account, ScheduleContract.CONTENT_AUTHORITY);
                    boolean syncPending = ContentResolver.isSyncPending(
                            account, ScheduleContract.CONTENT_AUTHORITY);
                    if (!syncActive && !syncPending) {
                        mManualSyncRequest = false;
                    }
                    onRefreshingStateChanged(syncActive || (mManualSyncRequest && syncPending));
                }
            });
        }
    };